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GTX570 vs GTX480 results
Thought I would share my findings here that I posted on Macrumors:
Got my hands on some GTX570s (1.2GB). Here is what I found in Resolve 9. Mac Pro 4,1 with 14GB RAM, 2×2.26, a 3TB SW RAID, and a 750GB HDD running OSX 10.8.2 for my first simple test machine.
This test contained the standard candle test for V9 and a RED 5K 2:1 (7:1 compression) clip to replace the SD footage so that I can see how well the GPU’s worked with the rocket.
First, I did a clean install of 10.8.2 and then installed the latest Cuda drivers (5.0.37) and left the existing NVidia drivers alone (295.30.20f02). I was able to plug in either card with zero issues. Computer and Monitor sleep works, no boot up or kernal panics, no crashing software. They were both just plug and play and appear to be running at full speed with regards to Cuda-Z. I can’t get the PCI window to work though with the GTX570 under system profile which was expected vs the MVC GTX480.
https://docs.google.com/spreadsheet/…kE&usp=sharing
Summary: The GTX480 and 570 are basically neck and neck. Maybe a 1/4 to 1/2 FPS difference in some areas but where one nudges ahead the other does in a different area (SD/HD vs RED and so forth). Also the single-precision numbers were 1333 vs 1393 (GTX570) in Cuda-Z.
The most interesting part to me was that I found very little performance increase once the GT120 was added as the GUI card. Maybe a 1/2 to 1 FPS bump in some areas but thats it. I will say that overall scrubbing and snappyness of playback felt smoother with the dedicated GUI card. I just couldn’t measure it accurately but it was certainly there. If it came down to it though, I’d rather utilize one card and dedicate the slots to supporting RR, HBA, and a Decklink. This would also make a friendlier setup for FCX, CS6 and so forth.
It’s nice to know that you can utilize a simple SW RAID and still get realtime with some heavy handed footage. I had no issues with ProRes 4×4. I’ll have to try DPX and ArriRaw next.