How many CUDA cores?

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peterb52

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Jul 11, 2014
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Going to be using premiere pro 5/6/7 utilising the power of the mercury engine on raw footage shot on the Black Magic Pocket Cinema Camera. It's all about CUDA cores. Building my first rig and I have my eye on a matched pair of GTX 680. IF I SLI them will I effectively have 3072 cores in play?
Here's my kit, so far:
ASUS Sabertooth x79
Intel i7 4930k
Corsair TX950W PSU
InWin Maelstrom Full ATX Tower
16GB Kingston HyperX Fury (may get another matching 16GB as the mobo can take it)
3 x SSDs, 500GB, 480GB and 240GB ( for my c drive)

Just the GPU/s to go.... any suggestions in this area, or about the build in general (before I put it together) would be welcomed. And please feel free to criticize, so I can change items now rather than later.
Thanks, Peter
 
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Shneiky
Well, you got it a bit upside down. It is not all about CUDA cores. Premier is GPU Accelerated, not GPU calculated. Your bottleneck in Premier is always the CPU. Also Premier C6 and under does not support dual GPUs - meaning, even if you have 4 cards, only 1 will be used by Premier CS6 and under. CC does support SLI.

http://www.pugetsystems.com/labs/articles/Adobe-Premiere-Pro-CS6-GPU-Acceleration-162/

Here you can see a comparison between the video cards and platforms which the good people from Puget systems have made. As you can see in the link over there, any card over 660/760 is a pure waste of money when it comes to Premier. After Effects is a totally different story, but we are talking about Premier.

You can see a major...
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Shneiky

Shneiky

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Well, you got it a bit upside down. It is not all about CUDA cores. Premier is GPU Accelerated, not GPU calculated. Your bottleneck in Premier is always the CPU. Also Premier C6 and under does not support dual GPUs - meaning, even if you have 4 cards, only 1 will be used by Premier CS6 and under. CC does support SLI.

http://www.pugetsystems.com/labs/articles/Adobe-Premiere-Pro-CS6-GPU-Acceleration-162/

Here you can see a comparison between the video cards and platforms which the good people from Puget systems have made. As you can see in the link over there, any card over 660/760 is a pure waste of money when it comes to Premier. After Effects is a totally different story, but we are talking about Premier.

You can see a major difference between the Z77 and the x79 platforms. That comes from the difference that the Z77 platforms I7s are 4 cored, while the x79 is with 6 cores. During rendering I have my 2700K running almost full load all the time, and the video card (650ti) never breaks 25%/30% usage, but only during short periods of time. CUDA acceleration in Premier CS5/CS5.5/CS6 is quite narrow.

Now this link is about professional cards and Premier CC.
http://www.pugetsystems.com/labs/articles/Adobe-Premiere-Pro-CC-Professional-GPU-Acceleration-502/

The 1st graph shows actual world usage. The difference between 1000 bucks GTX Titan and a 400 bucks K2000 is so amazingly miniscule. A 300 bucks GTX 770 will beat the K2000 and arrive around the K4000.

Now the 2nd graph is entirely about GPU accelerated effects. It is not a real world scenario.

It is good that you picked a 6 cored I7. It will do you more good than any video card or set of video cards. My advice is - buy a 770 with 4GB of vRAM (for future proofing) or if you would really want to spend to get the best - A GTX Titan will do you the best.

Cheers and good luck.
 
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