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There is this one
http://www.ebay.com/itm/EVGA-Nvidia-GeForce-GT-640-4GB-PC-Gaming-Graphics-Card-04G-P4-2647-RX-/322261677495?hash=item4b084af5b7:g:l80AAOSwAuZX2WEr
4GB, 384 cores, $52 + shipping. The item seems to be located in the UK, but I imagine similar cards can be found in the US, which would save you the shipping charge.
Not really, if you're comparing RAM, clock speed and perhaps similar cooling.
All the major brands are pretty similar quality-wise. Just be sure to purchse from a source you trust, otherwise you can't be absolutely certain it is the brand you're buying.
never mind
Graphics is one of those things where you generally get what you pay for. You really, really, want to get 4gb at bare minimum. Trust me. You will kick yourself if you don't. Like hard. Save for a while and try to get something a bit better. For just a bit more, I am seeing a number of used 670's with 4gb for right around $100. That gives you 1366 CUDA cores and 4gb of space. That's not too shabby. I have a 670, but as I said earlier, it only has 2gb. Its decently quick when the scene fits in memory. The 670 will murder that little 740 with its pitiful 384 CUDA cores.
Yeah, personally, I'd recommend saving and waiting rather than trying to squeak in low. Get at least a $200-300 card.
....Newegg still has 4 GB 740s available, 119$
http://www.newegg.com/Product/Product.aspx?Item=9SIA2F84BC9894
Is there really any difference in what they do? In a real camera the F or aperture setting affects both light sensitivity and depth of field, and film ISO affects both light sensitivity and picture graininess, but in Iray they just affect the light intensity. Different ways of measuring the same thing.
I have wondered this aswell. DOF settings are on the camera, so like you said, this would not be affected by the render settings. Exposure time increases the light, but I believe iRay does not assume the camera is shaking like when held by a human, thus "blurring" the picture for long exposures.
I only really change the ISO setting for this reason.
double post...
The Exposure Value seems to be the result of the Shutter Speed / F/Stop / ISO and cm^2 Factor combined as it changes whenever you change one of these, but if you change the Exposure Value only the shutter speed changes. It could probably just as well change one of the others instead, shutter speed is probably just the most used light setting in photography which may be why they have chosen it.
double post...
well, it's ordered - free shipping from amazon
EVGA GeForce GT 730 2GB GDDR5 64bit DVI/HDMI/VGA Low Profile Graphics Card 02G-P3-3733-KR
for 300w psu.
will see how it goes with the ds4.8 irays
never planned on buying a graphic card for DS, but staycation coming. would like to do a few trial renders that won't use up my whole week lol
next system to save up for
hexacore i7 4.0ghz, double the carrara render buckets
deleted
I think you maybe should have saved your money. With those specs you'll be going to CPU rendering all the time anyway. Sorry :(
For future reference (when it comes to Nvidia anyway), the closer you get to a card with an "80" in the number, the better the card (and the more expensive). 780, 980, 1080 are all good cards. The farther you get away from "80" the less "worth it" the card is for gaming OR rendering.
Laurie
Ouch! Spending a little extra money could have gotten you 2 more gig on a GT 740 4GB for $119. Maybe you can cancel your Amazon order and have them send you this instead. https://www.amazon.com/EVGA-GeForce-GDDR5-Graphics-04G-P4-3748-KR/dp/B00KJGYOGG/ref=sr_1_1?ie=UTF8&qid=1474663830&sr=8-1&keywords=EVGA+GeForce+GTX+740+4GB
WIth just 2GB, Laurie is correct, you'll be spending most of your render time on CPU as GPU memory will be filled quickly. 4 GB gives you some cushion.
If you can't change your order, then install the one you bought as a second card dedicated to just rendering and maybe you won't fill up the memory as quickly. If it's replacing a current card, there's not much hope. You will be crunching textures a lot. The operating system will take a big chunk. Whatever you get, install it as a second card so all its memory will be used for rendering and not other tasks by the system.
Like the last two said, and I said earlier, 2gb is hard to work with. I have 2 gb in my card, and I can tell you it really is very limiting. You are going to have to be very creative to take advantage of that card. But even then, you picked one with just 384 CUDA cores, it will be faster than cpu, but ahhhhhh, it could have been better. You have got to be willing to invest in your hardware. There are 4gb 730's out there for just a bit more, especially on ebay, with free shipping to boot.
I know you wanted a new card because of the warranty and stuff, but at the price you paid, don't bother worrying about a warranty. Because even if your card dies in warranty, you will will be required to pay to ship the defective card to EVGA (they all do this, btw.) That will likely run you $15-20, so in the end, you will only save like $45. Not worth it IMO. Sadly, my scan of ebay yielded very little. It looks like all the good deals I saw last time have been snatched up.
i'm in saving up mode for a xeon next
Xeon's are good, but to get the same IRAY performance, you'll spend about ten times as much.
As other's have said, cancel the 730 if you can. At the very least aim for 4GB of GPU RAM. More tbh, but the card will be idle a lot whilst you CPU does the work (slowly).
44 Xeon cores will cost you something around 12,000.00 (dollars or pounds); and wont do the same as a Titan X. Admittedly with more memory, you well get better performance when the scene does drop to CPUs
If you want to get the most out of iRay, I usually recommend a card with a minimum of 2,000 CUDA cores (for example, a GTX 980). Ebay is definitely the way to go. You can pick one up for about $200 now. Ever since the release of the 10xx series, everyone is selling their 9xx and 7xx series. So ebay is flooded with them now (by the way, I always buy my cards used and never had any problems). Even the 780 Ti has come down to ~$250. At over 2,800 CUDA cores, that is a beast for that price.
Regarding VRAM, I have four 780 Ti's in my system---which have only 3 GB of VRAM---but I've never had any issues with them dumping over to the CPU...not ever since the latest drivers came out. It can handle large scenes with 6+ million polys and dozens of characters no problem.
-P
If you stick to the name brands (EVGA, MSI, Gigabyte, ASUS, etc.), you should be fine. EVGA seems to be the most popular, and perhaps also the most stable. I have heard some complaints about instability with certain Gigabyte cards. But I think that is because Gigabyte overclocked them way beyond factory spec.
P - which driver are you using so I can compare and be sure. I have a 780 ti.
EVGA and MSI are both 'tops' in my book when it comes to customer support, too.
Just for completeness, although it doesn't count as cheap, PNY is one of the major manufacturers of the Quadro Series and I've not heard bad things about their lower performace series.
Kendall
I strongly advise taking a look at the Iray Starter Scene thread where people post renders times on a standard scene.
http://www.daz3d.com/forums/discussion/53771/iray-starter-scene-post-your-benchmarks/p11
You can try this scene yourself by downloading it from the first post. It contains only items that Daz3d includes. This way you can get an idea of how this GPU stands up to what you just bought.
Here is a small chart somebody made with the 4gb version of the 730.
Keep in mind that this test is a small scene with just one character, a very basic background, and a few materials on some orbs. The 740 is more than 10 minutes faster. That is going to scale considerably the more complex and larger your scenes are. The 960 is 5 times faster. My 670 clocked in right at 6 minutes as well, so its pretty similar to the newer 960.
By comparison, there are people who posted CPU only times ranging from 26 minutes for an i7-6700 to 1 hour 48 minutes for a dual corelaptop i3-5020u. So depending on what CPU you are rocking right now, you may not see a big boost unless its pretty old. Like I said, take the test yourself and see.
https://www.amazon.com/EVGA-GeForce-Cooling-Graphics-02G-P4-2957-KR/dp/B013WQCC5O/ref=pd_lpo_147_lp_tr_t_3?ie=UTF8&psc=1&refRID=2ZKQEZCDHPYMEPT09S6M
2GB mem, 768 CUDA cores and $140
My 3GB 780 I just replaced worked great for me with 2-3 characters!