Build New PC for Rendering Iray??
Konohastore
Posts: 11
Hi, i would to ask about PC for Rendering. im serius working on 3D art in the future . How about my pc spec, do you thing is good enough. because I would buy in a store in my area and owner store tell me to use this PC.
Take A look guys
Processor AMD Ryzen. With VGA nvidia geforce pascal, mainboard used ATX support VGA more than 1.
*H A R D W A R E -
- mainboard asrock B350 PRO 4. AM4. support m.2 ddr4. new box
- processor AMD ryzen 3 1200. new box
- ram 8 GB ddr4 Gamer Team elite dual channel with heatspread /cooler.
- vga nvidia geforce GTX 1050 ti OC edition. dual fan. 4GB DDR5 directx 12. new box
- hdd 1 tera seagate new
- Psupply raidmax rx450K 80+
My question:
1. is the system that I have a fast enough for rendering?
2. for the graphics card is already support Nvidia Iray rendering
Thanks for help.
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Comments
...8 GB of memory is borderline as Windows and system utilities will take up about 1.0 - 1.3 GB. I currently have 12 GB (10.7 available) and find my Iray CPU render processes on even moderately sized scenes often dumping to even slower swap mode (having to keep the scene open in Daz while rendering takes up system memory in addition to the rendering process). I would suggest a minimum of 16 GB leaving room for further expansion when you can afford it (that means 2 x 8 GB sticks leaving 2 slots on the board open for upgrading)
4 GB of VRAM is also cutting it close particularly since to support Ryzen, the system will be running Windows (see below) . Fine for small scenes and portraits but if you have ambitions for larger scenes with multiple characters and are looking for the most "realism" in your images, more than likely the process will exceed the card's VRAM, particularly as you are running W10 which will reserve about 17% - 18% or so of the card's memory, meaning you will only have about 3.3 GB for rendering instead of 4. I would at least go for a 6 GB GTX 1060 if you can find one at a decent price. For best performance at cost I would normally recommend a GTX 1070 with 8 GB but prices for those have become outrageous due to low supply issues caused by the cryptomining craze.
The CPU Ryzen 3 1300 is a straight 4 core non hyeperthreading CPU which effectively it similar to the old Intel Core2 Quad. This means, if a render process drops to CPU mode it will be slow (even more so than the first generation i7 I have which is five years old). My suggestion would be go for A Ryzen 5 1500 which has hyperthreading (4 cores/8threads) as well as a base clock speed of 3.5 GHz (3.7 GHz boost clock).
For a new rig I would try to stretch my budget to 1060 gtx 6 GB model. It features almost double amount of CUDA cores over the 1050 ti, which is much more important to Iray than the overclocking. Also the memory 6 GB will make your rig more future proof, for more demanding renders.
...that too.
Thanks guys for advice. i need someone like you guys, profesional and experience for these , i dont want wrong choice to build my pc .
so i need to change to ryzen 5 1500 and 1060 gtx 6 GB.
what about Ryzen 5 1600 (6 Core/12 Threed)?? it better than 1500?
...having four more threads is definitly useful though the base clock speed is a bit lower (3.2 GHz vs. 3.5 GHz) Again CPU cores and speed would come into play should your scene drop from VRAM to the CPU. Both CPUs are about the same price.
Newegg and Best Buy have 6 GB 1060s for around 320$ - 400$.
Best Buy does have a 1070 Founders Edition for 429$ though the FE models only have a single cooling fan
https://www.bestbuy.com/site/nvidia-founders-edition-geforce-gtx-1070-8gb-gddr5-pci-express-3-0-graphics-card/5330700.p?skuId=5330700
Are you going to use your computer for anything other than Iray rendering? Because that's important.
If only iray rendering, then I strongly suggest the most powerful GPU you can afford. Below is a list of how fast the various GPU's will render a benchmark scene. For example, the scene will render in about 2 minutes on a GTX-1080ti. And with my Ryzen 7 1700 CPU with 8 cores/16 threads it takes 10 times that long to render: 20 minutes. For me, that is unacceptable, so I never plan for my scenes to dump to the CPU to render. If necessary I'll tweak my scenes to not use so much memory. Depending on the type of scenes you build, you might need a GPU with a lot of onboard VRAM. My GTX-1080ti has 11GB, but rarely do I have problems with my GTX-1070 which has 8GB as I recall.
You many not need to spend a lot of money on a powerful CPU unless you do stuff that uses a fast CPU with a lot of threads. Most software is moving towards GPU's nowadays, but there are some apps that use CPU. So it depends.
I'd also suggest you get more than 8GB of RAM. I have 64GB, but that's way overkill. If you're going to have a lot of stuff open on your desktop, etc., more memory is nice.
You also might want to consider an SSD, which is basically a solid state hard drive. Extremely fast when opening Windows and all your apps, and makes everything feel snappy.
BTW, I just checked Newegg and a 1080ti is still insanely overpriced...almost twice the price they should be. If it was me, I'd wait a while until the 1080ti prices drop (if you're serious about iray rendering in the future and are okay with paying $700+ for a GPU). Otherwise, a 1060 or 1070 family are less expensive and very fast.
Here are some price charts so you can see what the normal prices of video cards should be. In recent weeks they've gone insane, but the charts show you the typical prices over the last year or so.
https://pcpartpicker.com/trends/price/video-card/
...199$ for the Ryzen 5-1600 is not a bad deal for 6 cores/12 threads compared to what you'd have to pay for a similar Intel CPU Crikey my old 4 core/8 thread i7 930 cost me nearly 400$ when I built my system. The one upside of a pre Kaby Lake Intel CPU is you can move back to Win7 Pro or 8.1 and not have to deal with W10's reserving such a large portion of VRAM or interrupting your work or render process with for an auto update (particularly W10 Home Edition).
For Intel, the Broadwell i7 6800Kwould be about the best value 6 cores/12 threads at 3.4 GHz/3.6 GHz Turbo (339$ at Frys).
A win7 Pro 64 bit OEM is around 139$
My personal choice for a setup would be the 6800K with G.SKILL Value Series 32GB DDR4 2133 (4 x 8GB) (leaving four DIMM slots open for future expansion up to 64 GB), ASRock X99 Extreme4 MB (3 PCIe 3.0 16 slots and 8 x 288 pin DIMM slots, GTX 1060 6 GB GPU, 1 x 1 TB + 1 x 400GB SSDs (I prefer a separate library drive for my content rather than having everything on the main C: drive) backed up with a 2 TB HDD, and an 850W PSU (leaves overhead for future expansion) running W7 Pro x64.
It is really sad that 1070s are in such high demand by Cryptominers as they were the best deal for the money, based on VRAM and cores. Prices originally ran between 380$ and 420$.
I'd still check Best Buy's site as they may have that 429$ Founders Edition 1070 at a store in your area as you have to go to the store to pick it up (unless you are in the Seattle/Portland region, none availble here).
if you're not using it for gaming, run your monitor with onboard graphics (check to see if your chosen CPU has the functionality), and then dedicate the best nvidia 10 series card you can afford to rendering.
Alternatively, look at other rendering engines; Octane for instance, but it costs and has a learning curve.
... My opinion: the ownder is more interested in selling you a PC, than providing one that best suits your needs; others have commented on woeful lack of RAM and relatively low-spec CPU and GPU.
...I get the same impression. When I was looking for a desktop to move my work off the Notebook, I got a lot of "hard sells" form the various electronics stores I went to.
I ended up building my own as none of the "off the shelf" systems I saw that were being pushed at me were up to the task. Most had barely adequate power supplies to support what was already installed, and often were crammed in a small case with very poor cooling (many with only the same single small exhaust fan a business PC would have). Gaming dedicated PCs are OK but often still scrimp on memory and may have other features yo uare paying for that really aren't needed if all you are going to do is CG work.
Five years ago when I built the one I am currently using, it cost a lot less than going to a custom build house (about 40%). Today that isn't so much the case. If you don;'t wish to build your own, I would recommend one of the custom houses that are on the Net. Not only do they assemble everything install/configure the OS, but also test the system before shipping. Make sure to get the Pro version of W10 as that gives you a little more leeway in how it's set it up, turning off features you don't need or want, and deferring/scheduling updates compared to the Home Edition.
To designate your primary GPU card to bypass W10's reserving of VRAM when rendering is something you will most likely need to do on your own, I haven't seen that option on any of the custom sites.. Whenever I do get a sufficiently powerful GPU card for rendering I'm going to designate my old one to just driving the monitors as even older versions of Windows take a little bit of VRAM (though not as much as W10 does).
Unfortunately right now is not a very good time to be building a PC with high end graphics. There is a serious choke on supply from the crypto currency boom, and this in turn is placing video cards in high demand. Crypto miners are buying up 6 GPUs or more at once, and the market cannot keep up. This is driving the cost of a variety of GPUs to sky rocket.
https://arstechnica.com/tech-policy/2018/01/cryptocurrency-boom-creates-insane-global-graphics-card-shortage/
Notice in that price chart ebergerly linked how all of the cards are going up? That is why. The trouble is, we don't know how long this will last, it has been going on for quite some time. Under normal times all those prices would be going down. Instead we have cards that are a couple of years old that going UP. This is highly abnormal. The mining boom cannot crash fast enough. When it does crash, you will find a sudden massive supply of GPUs everywhere. That could be bad, too, because I wouldn't want a GPU that has been used for non stop mining, that is stressful.
Even the price of RAM is skyrocketing, for several reasons. There was/is a world wide shortage of RAM chips, and many of the RAM makers are focusing on mobile now as that is the big growth area. So now RAM that was $75 just a couple of years ago is more than double that price. Or more.
So where does this leave you? Its a very tough call and you are going to have to decide on how to approach it. If you are doing Iray, there is no substitute for GPU power. None. In my opinion, a 1050ti is just not good enough. If you buy a 1050ti and you are serious about rendering...you will HATE yourself for buying it. The benchmark times that are linked here are only for a very tiny and fairly basic scene. If you increase the size, the times will drastically increase in turn. Most scenes in Daz take much longer to render for most people. Many users here will talk about rendering a single scene for hours at a time, even with a very high powered GPU. A scene that takes a 1080ti 30 minutes could potentially take a 1050ti HOURS. And a scene that takes a 1080ti hours to finish...well you don't want to even know. And IMO time is just as valuable as money. I'm not saying you should get a 1080ti, I am only using it as a base. But if you can possibly grab a 1070 or better, you will be able to produce a lot more work. And that does not even cover the VRAM. A 4 GB card IMO is not going to be enough for many scenes. And your scene is bigger than the 4gb capacity, guess what, you are stuck in slow as molasses CPU mode. With Iray, it is "all or nothing" when it comes to VRAM. I'd say you probably want at LEAST 8gb of VRAM, like the 1070 and 1080 have.
If you already have a PC, even an old one, then I would not bother building a new one. Instead I would get the biggest baddest GPU I could afford and pop that bad boy in. In case you are wondering, there are people who have placed GPUs like the 1070 into very old PCs. I remember someone plugged a 1070 into a Core 2 Quad based PC (that's a CPU from about 2007.) Dude, the Core 2 Quad had 6GB of RAM...the 1070 has 8GB, and every PC builder on the planet will tell you that is a big NO-NO. But you know what...they got render times just as fast as everyone else who had a 1070 in their much newer machines. That is because with Daz Iray, nothing else really matters. The GPU does all of the work inside itself. That is why the scene must fit into VRAM, after all, it is not using system RAM or accessing anything while rendering. Other parts will help speed up other things, but for actual rendering times, there is no part more important than GPU. People often think of building out a PC for gaming and other tasks, but Daz Iray is NOT like a video game, and thus does not have the same issues with bottlenecks. You only need to worry about bottlenecks with Iray if you plan on using multiple GPUs at once.
Keep in mind that Daz's new physics engine, dforce, can also use the GPU for its calculations. So you don't even need a big CPU for that.
So you could buy a good GPU and use an old PC, with the idea of perhaps building a new PC later when you have more money. But you probably want to wait if you can due to the mining craze, to see if the market can come down a bit.
Maybe you can find a used GPU from somebody. I've never bought a new GPU in my life. Maybe I have been lucky, but they have all been fine and lasted me until I resold them or gave them away.
...one site to keep an eye on is Nvidia. They are still selling their GPU cards direct at the base price. Granted these are all Founders Edition cards which have only a single fan, but you won't be paying nearly 1,000$ for a 1070 or 1,300$ - 1,500$ for a 1080 Ti. 1070s are currently out of stock but you can set up a reminder notice for when more come available. Prices are 399$. for the standard 1070, 439$ for the 1070 Ti and 699$ for the 1080 Ti.
Yeah, I'm not sure how well a FE card will hold up to constant Iray use. Airflow is important.
Daz Iray is a lot more stressful than regular gaming. When rendering a GPU is often running at its max for the length of the render. Games are rarely this demanding. And if you have renders running for hours at a time, that stress can add up and hurt the longevity of the card. It is truly better to get a card that has a really good cooling solution on it. I'm not saying you need water cooling, I don't water cool. But if you plan on using an old school style "blower" card, you must plan ahead and make sure your case design accounts for that. Your case needs to have great airflow, and the place your PC is being located needs to be cool and open. No PC near a heater! This is good general advise regardless, but even more important if you go with a single fan blower card. Make sure you use some sort of monitoring app, like EVGA PrecisionX or MSI Afterburner to check your temps and things. I use PrecisionX to create a very aggressive fan curve and the app controls the fans. With this fan curve the fan will kick in sooner and harder, and the GPU stays under 60 at all times under Iray's load.
Having said that, in some respects, a blower card can work nicely. A blower ejects air from the case. Other air cooled cards blow air downward, which can in some cases actually cause the hot air to bounce right back into the rest of the case! So that is why your case airflow is important. You are building a electric hotrod, and you need to consider all these things, just like how a hotrod might have a giant intake valve on its hood. I used to have a blower style 670, and that card stayed pretty cool in my case thanks to how the air flowed through it. And I pushed that puppy hard. I also used PresicionX to control the fans and it always stayed under 60. So it is possible. Yeah, it got loud at full power...WRRRRRRRRRRRRRR. But that doesn't bother me, it kind of makes me feel alive! LOL. At any rate, it is easier to replace a fan than a burned out GPU, though I've never had to do either. That old 670 still lives, I gave it to a family member when he built his PC, and it still gets regular use to this day. I have a MSI 970 now with 2 big fans, and stays just a bit cooler than the 670 did, but not dramatically so. I took the step of installing an extra fan to help eject the air from the 970's fans.
There's a commonly held belief that longer rendering is somehow worse for your hardware, and that a single fan is not as good as multiple fans. However I don't think that is necessarily true. As an example, I did a 24 hour continuous render on my old, "piece of junk" laptop, and the CPU temperature stayed constant at around 62C the entire time. And it won't even throttle to protect itself unless it gets up near 90-100C, which it didn't. So even after 24 hours it wasn't even close to anything harmful for the computer. Here's the link if anyone is interested:
https://www.daz3d.com/forums/discussion/212106/ot-laptop-render-benchmark-results/p1
When a device starts rendering, it heats up very quickly, often within minutes. And the cooling system is designed to maintain that temperature, and turns on the fan to bring the temps down. Once it reaches that stable point, more time doesn't make things hotter. It's not like the device is somehow generating more heat over time and the fan can't keep up. Unless of course your cooling system isn't working because you don't clean the dust out of the vents, etc.
Another example...
My main computer has at GTX 1070 FE (single fan) sitting in a PCI slot next to a GTX 1080ti (two fans). So during renders both cards are generating a lot of heat and blowing heat on each other. But the same thing applies. When I start a render they both heat up quickly and are pretty much fixed at an operating temperature, and that doesn't change if it's 30 minutes or 2 hours.
Like I've said before, engineers generally (unless you bought a throaway piece of junk like my laptop) design their systems to cool their devices so that they aren't damaged with continuous use. It's pretty much irrelevant if it's operating continuously for 1 hour or 24 hours. At "full tilt" it's generating the same heat, and if the fan can cool that now, it can cool it in 24 hours.
As an example, a CPU has what's called a "TDP", or Total Design Power, which is the maximum power it uses in watts. When it's operating at "full tilt", it's using that amount of power, and generating that fixed amount of heat. And the cooling system is designed to cool that amount of generated heat. For example my stock cooler on my CPU has a 95 watt TDP, which means it can continuously cool a CPU generating 95 watts. Which is nice, because my CPU has only a 65 watt TDP.
Of course there's also the belief that long term heating can be somehow damaging to the life of the device. That's fairly easy to believe since it's difficult to prove otherwise. Not many people have actual data showing their GPU died after 5 years due to continuous rendering, and should have lasted 8 years. But generally it's safe to say that devices are designed for continous use, and any loss of life is likely irrelevant as long as it's operating within design margins. Which means you don't overclock, and keep the vents free of dust, and so on. Sure, if you're device is, for some reason like blocked vents, regularly getting up in the 100C range and throttling then you're risking long term damage. But most devices don't get that hot unless they are junk, or blocked vents, or bad thermal paste, or fan problems, and so on.
And does it really matter if your device will last only 8 years, not 10? For most people probably not, since they're likely to replace their computers before that. And how many of us really stress our computers with 24/7 rendering for a month at a time?
An FE, single fan GPU is fine for rendering. Multiple fans are for enthusiasts who like to believe that more fans are better, or for those who actually overclock and really need the additional cooling. If anyone has any actual data with a single fan GPU which shows otherwise, I'd be inerested to see it.
...Quadro GPU card cases are designed the same way as the Founders Edition with a single Blower fan but they are engineered to operate for long periods at steady peak output. They also tend to run cooler as they do not demand as much power as their respective GTX counterparts. A 16 GB P5000 only requires a maximum of 180 W compared to 250 W for the 11 GB 1080 Ti and 12 GB Titan Xp.
Heat is still the enemy of electronics and I agree that good ventilation is important (part of the reason I never liked "off the shelf" systems). I have 7 fans in my case which includes 2 Dual top vent fans, two rear vent fans, two front fans for cooling the drive bays providing flow through ventilation, a large 400mm fan in the left panel (right by where the GPUs sit) instead of a window and a partition between the PSU and other internals that deflects exhaust air out a rear port. Unfortunately this case is no longer available. I also have a fairly hefty aftermarket CPU cooler.
...as to the cards cryptominers are using, those are effectively being put through a prolonged torture test. Even we close our programmes and shut our systems down when done, taking the strain off the internal components. Cryptominers need to keep their systems chugging away day and night day in and day out for months without a break to reap the maximum value in cryptocurrency they can (and there isn't just one out there anymore).
Basically equipment burns out and breaks down. The harder it is pushed beyond it's normal use, the shorter the lifespan. This is why I do not overclock.
It's a bit like the human body, IMO. I think I read somewhere that our bodies generate the same heat as a 100watt light bulb. And we're at around 98.6F for our entire lives. Is heat the enemy of our bodies? Not really, unless it gets too hot and our cooling system gets overloaded. Otherwise we can operate at 98.6F for many decades without having a fan strapped to our heads
"Heat is bad" seems reasonable, but I think it's more accurate to say "too much heat can be bad". As long as your device is putting out the amount of heat that the fan system can dissipate you're good.
Agreed, don't overclock.
Folks tend to think a good gaming PC is well specked for rendering; it isn't. A well specked gaming PC makes an OKish rendering PC
My own personal opinion, is that a 1080ti is the minimum someone should be considering; chosing anything less is due to budgetary constraints. However, I'm against buying a new card atm, due to the issue with Windows 10 stealing GPU ram it doesn't need from a card that is not connected to monitors. It's an easy enough fix if they chose to do so, but they don't. No idea why.
I'm in the process of setting up an SSD with Windows 7; it will work with my threadripper system; ASRock even have a utility for my motherboard to deal with the lack of USB 3 support.
I have my eye on a gaming laptop with a GTX 1080 in it that will make an awesome rendering machine. And in fact, based on the insane prices on desktop GPU's right now, a laptop might be the best way to get an affordable rendering machine.
Why do you say a gaming laptop is only an OKish rendering machine? Sounds like they're making significant efficiency improvements in GPU's, which means drawing less power and generating less heat, therefore requiring less cooling. I imagine it's just a matter of time until they release a 1080ti laptop.
Gaming PC, not simply laptop.
Why? Because it is simple and relatively inexpensive to get a PC for gaming that will cope with all existing titles, and even those upcoming ones.
There is no such thing as enough rendering power; which is why commercial renders have whole servers dedicated to it; and lots of them.
Yes simple scenes can be rendered fairy quickly, even very quickly on a reasonable spec machine; but start adding a few figures, some decent backdrops, and one is forced to start jumping through hoops to keep it on the GPU, and even then, they will drop eventually.
It's interesting...I was just searching thru the Dell site looking at desktops with a GTX 1080 and 16GB of RAM, etc., and it looks like they're selling for around $2k. And that's without a monitor, keyboard, or mouse.
A similar MSI laptop at Newegg with a GTX 1080 and 16 GB RAM costs not much more than that...around $2.4k, which includes the built-in laptop monitor, keyboard, and mouse.
So it seems like a bit of a toss-up between the two, with the added benefit that the laptop also gives you mobility.
In any case, with the insane prices of GPU's now, I think if you can get a pre-made Dell/HP/whatever desktop or laptop you're probably a lot better off price-wise than a do-it-yourself.
...the usual point of breakdown for any device is the mechanical components (one of the reasons SSDs are preferred over HDDs). In the case of a GPU card it's the fans(s). The more they are overworked the more likely they will fail. Once those go, the card it pretty much toast (sometimes literally).
Again I'm not talking how we or gamers use them, just pointing out that should the cryptomining bubble go bust, I would pay a bit more for a new card when prices came back down than one that may be cheaper on ebay, but was running in "torture mode" for 6 months without a break.
...I used to do all my CG work on a notebook. Granted this was before Iray so all rendering was done on the CPU. Still, heating was an issue as it had the standard dual purpose hamster wheel fan on the side. The only reason I did so was because that was the system I had, and buying a new desktop was a daunting purchase at the time.
My ongoing concern with notebooks for what we do is limited upgrading/expandibility, the inability to improve cooling (those under the unit pads do little to really help the situation when rendering), and the tradeoff in cost for portability.
What is important is normal operating temperature. For people it is 98, which is about 37 C. Go much above that and people will die. Go much below and they will die. When power was knocked out in Florida, a few people sadly died from heat exhaustion without the AC. So yeah...we actually do need to take serious precautions against heat in hot weather. The temperature people can run at is strikingly narrow. PCs are a different beast. There is no real minimum temperature. But there certainly is a max.
65-75 C is pretty comfy for a GPU that is running max power. But go much higher for extended periods of time and it can wear down. It may not die right away if it runs hot for 24 hours. But damage can still be done. Heat compound can break down and lose its ability to transfer heat little by little.
An interesting note is that Nvidia released a few GPUs dedicated to mining. These cards had no video output, and were supposedly designed for long term use that mining is. I looked at these cards because they sounded like a good secondary GPU for Daz Iray. They are slightly cheaper than the GTX cards they are based on. But they have a big caveat: they only have a 3 MONTH warranty instead of the standard 3 years. Yikes. That's a big downgrade in warranty for only a small discount over GTX. The main reason for that short warranty is how often mining GPUs get returned.
I hear that a lot, though I've never seen data to support it. Engineers design the cooling system to throttle or shut down at VERY high temperatures, because that's when the device might get damaged. So they throttle to protect the device. And we're talking around 90-100C, depending on the device. So it's very hard to damage your computer components since they are for the most part self-protecting. Personally, I think the concern over high temperatures damaging PC equipment is WAY overstated.
...had an HP notebook cook itself to death when the fan went south. Unless the components have adequate airflow they will burn out. One member here even had the keyboard on her notebook (a fairly expensive one) begin to slowly melt from the heat generated by rendering. A number of the keys over the area of the CPU on my old 32 bit notebook burned out and I now have to use a wireless keyboard with it. Excessive heat does damage electronics over time.
There is plenty of data to support it. But not where you'll easily find it.
The issue here isn't total heat dissipation vs. total heat generation. The situation that applies here is instantaneous heat generation and cooling response time. If one area of a chip/card suddenly undergoes a huge load (100%) it heats up VERY fast. But it takes time before the thermal sensors NOTICE this (the heat has to conduct/convect sufficiently to reach them)....and during that time, the heat can build up to levels that can stress the silicon. The 'self-protecting' parts can only respond so fast....and it's not as fast as the heat can be generated.
This is why most of us recommend that for rendering (not gaming) purposes, use a custom fan profile that starts at medium and ramps up to maximum early. This way heat dissipation is well ahead of any dangerous potential levels.
The question is not whether heat has an effect. Of course it has an effect. But the question is whether that effect matters, and actually causes a loss of life, and whether that loss of life is relevant. Like I said, if it causes a 10 year lifespan to become an 8 year lifespan, and we change out our computers in 5 years, who cares?
We can always find an exception, or a case in which heat can cause damage. But if that doesn't apply to 99% of users here, then does it really matter?
I also think many in the tech community hear about something and tend to simplify it and apply it everywhere. But there are tons of people here and elsewhere who have successfully used laptops for rendering without issue. And like I showed, I even did an actual test on a certified piece of junk laptop for 24 hours continuous rendering and CPU temps stayed flat at 62C, way below any harmful temps.
And I still haven't seen any actual data and statistics which show that, for example, "instantaneous heat generation which is too fast for thermal sensors to detect can make your laptop melt, or reduce it's lifespan from 10 years to 1 year, and that heat generation happens every time you render a scene", or something like that. It's all just broad generalizations of "possible effects" without real data. IMO, "possible effects" is not supporting data unless it includes actual statistical data of laptops melting or having significant loss of life as a direct result.