Hello there. Probably ONCE AGAIN another post about GPU model... I'm now using two GTX 480 but I was looking at the GTX 660 Ti, 3 Go ram and It seems to be really interesting as for Cuda cores and memory / Price ratio. What do you think? Any advice before I go ahead and buy them?
Thank you!
GTX 660 Ti
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- marchermitte
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Marc Hermitte
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
I hope you know that a 680 is slower than a 580 (and probably even than a 480), so a 660 will give you considerably less performance than what you have now.
6xx Kepler technology is different than Fermi and you cant compare number of cores 1:1
6xx Kepler technology is different than Fermi and you cant compare number of cores 1:1
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- marchermitte
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I've seen a list with cores number (at adobe I think) and the 660 Ti had more than 900 cores per unity instead of 480 for the GTX 480, that's why I was considering changing my dual 480, I would give me about 4x the power. But because I'm not 100% sure (as this is Keppler architecture and not Fermi anymore) I prefer to ask here, I would use them for Octane mainly.
Marc Hermitte
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
No it wouldn't. Kepler & Fermi cores are not the same thing. In fact a 660 is probably twice slower than 480.marchermitte wrote:that's why I was considering changing my dual 480, I would give me about 4x the power.
A 680 is 10% - 20% slower in Octane than 580, even if it has 3x more cores.
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- marchermitte
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Ok, thank you for precising things for me! Then, I'll save some money then. What (appart my 480 gtx) would you advuce then for a dual GPU setting? Is my setting the best possible configuration at the moment?
Marc Hermitte
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
A 2x580 would be similar, a 2x680 would be slower but also consumes less electricity. Then there is 2x590, which is essentially 4x580.marchermitte wrote: What (appart my 480 gtx) would you advuce then for a dual GPU setting? Is my setting the best possible configuration at the moment?
If your 480 setup works ok for you, then I don't see much reason to change it, cause you wont gain much, if anything. Unless you go with two 590 / 690
SW: Octane 3.05 | Linux Mint 18.1 64bit | Blender 2.78 HW: EVGA GTX 1070 | i5 2500K | 16GB RAM Drivers: 375.26
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- marchermitte
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Ok, great. Saving some money then...
thank you!
thank you!
Marc Hermitte
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits
Intel I7 4.5 Ghz, 24 gig ram, 2x Nvidia GTX 480, win 764bits