EVGA GeForce GTX 970 success!! ... kind of???

I just upgraded my existing Hack from a GTX 670 to a GTX 970. It didn't work at first, but I downloaded the proper NVIDIA web driver and all is running well.

However, I noticed no difference in playback and rendering performance in DaVinci Resolve. Not little difference -- no difference.

...

I downloaded NovaBench and ran some tests in different configurations. Here's what I got with my old setup:

2015-05-30 22:09:46 +0000

Mac OS X 10.10.3

Intel Core i7 @ 3500 MHz

Graphics Card: NVIDIA GeForce GTX 670

16384 MB System RAM (Score: 215) - RAM Speed: 7464 MB/s

CPU Tests (Score: 858) - Floating Point Operations/Second: 350708000 - Integer Operations/Second: 654081216 - MD5 Hashes Calculated/Second: 1328900

Graphics Tests (Score: 203) - 3D Frames Per Second: 685

...

And here's with my new setup:

2015-05-31 15:49:15 +0000 Mac OS X 10.10.3 Intel Core i7 @ 3490 MHz Graphics Card: NVIDIA GeForce GTX 970

16384 MB System RAM (Score: 214) - RAM Speed: 7370 MB/s

CPU Tests (Score: 838) - Floating Point Operations/Second: 335064864 - Integer Operations/Second: 647727296 - MD5 Hashes Calculated/Second: 1306046

Graphics Tests (Score: 204) - 3D Frames Per Second: 690

...

I dual boot OS X 10.10.3 and Windows 7. Out of curiosity, I ran the test in Windows:

Windows 7 Home Premium

Intel Core i7-2770K 3.50 GHz running @ 3901 MHz

Graphics Card: NVIDIA GeForce GTX 970

16345 MB System RAM (Score: 219) - RAM Speed: 8293 MB/s

CPU Tests (Score: 811) - Floating Point Operations/Second: 206086504 - Integer Operations/Second: 938112560 - MD5 Hashes Calculated/Second: 1328821

Graphics Tests (Score: 1140) - 3D Frames Per Second: 2925

...

Massive difference! What gives??

According to NVIDIA, my web drivers are up to date: GPU Driver Version: 10.3.7 (346.01.02f04)

My CUDA driver is up to date as well: CUDA Driver Version: 7.0.36

I have more information if it's applicable, but I don't want to clog this up too much. Please let me know anything you can think of. Thanks!

submitted by andybader
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What is missing? Please comment to help!

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