- Apr 12, 2010
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Last night I was fooling around with overclocking. I finally decided to forgo Turbo Boost and see what sort of OC I can get. No turbo has some advantages, the power usage in HWMonitor went from 108W to 95W. The temps dropped too for the same speed. My Turbo Boost OC was at 175 base clock, for 3.68ghz to 4.2ghz. For the tests, my CF 5850s GPUs were at 960/1200.
So here's my initial results with the 175 base clock + turbo boost set up:
Pretty darn good! And this is with PPU disabled mind you, as with my PhysX card I got something like 30k CPU score lol. So 16k is accurate.
I took a screenshot but I didn't upload it as it was getting late, so you'll have to take my word on this, but after the 4ghz OC, I scored 18k CPU which is great, a 2k increase. But, the GPU scored was actually lower by about 1k I think. I noticed it showed in the side panel data there, the FPS were lower in both GPU tests as well as a couple feature tests. So I'm trying to figure out why?
Does Vantage run single core on the GPU tests? I did have the windows performance monitor open, it did show around 25% usage for those parts but it was spread across all CPU cores according to the graphs. Still, that's the only reasonable conclusion I can come to unless somebody out there can give me some new insight. Basically, if it's running single thread GPU then it was only going 4ghz, and therefore bottlenecked compared to 4.2ghz with the turbo OC. One thing I'm going to do is run some gaming benchmarks and see if those are performing alright.
The only other thing I can think of is that the RAM speed changed from 1400 CL7 to 1600 CL8. I am going to work on maximizing the RAM speed but I don't think that should make too much of a difference... Or maybe it does?
So here's my initial results with the 175 base clock + turbo boost set up:
Pretty darn good! And this is with PPU disabled mind you, as with my PhysX card I got something like 30k CPU score lol. So 16k is accurate.
I took a screenshot but I didn't upload it as it was getting late, so you'll have to take my word on this, but after the 4ghz OC, I scored 18k CPU which is great, a 2k increase. But, the GPU scored was actually lower by about 1k I think. I noticed it showed in the side panel data there, the FPS were lower in both GPU tests as well as a couple feature tests. So I'm trying to figure out why?
Does Vantage run single core on the GPU tests? I did have the windows performance monitor open, it did show around 25% usage for those parts but it was spread across all CPU cores according to the graphs. Still, that's the only reasonable conclusion I can come to unless somebody out there can give me some new insight. Basically, if it's running single thread GPU then it was only going 4ghz, and therefore bottlenecked compared to 4.2ghz with the turbo OC. One thing I'm going to do is run some gaming benchmarks and see if those are performing alright.
The only other thing I can think of is that the RAM speed changed from 1400 CL7 to 1600 CL8. I am going to work on maximizing the RAM speed but I don't think that should make too much of a difference... Or maybe it does?
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