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Was this just an OC anomaly?

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  • CPUs
  • Overclocking
Last response: in Overclocking
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May 12, 2011 1:22:50 AM

So I have been doing some experimenting with my 1090T. Just want to see where I can hit certain specs. Anyways I am running benches using Cinebench 11.5 just doing their standard CPU and GPU benches as quick tests. My specs are in my sig besides the fact that I am using a 5770 right now not the 6950 (don't ask).

I have been doing this in my spare time for the last couple of days now and have gotten some good results:
Stock settings give me a little more than 30fps, thats with all the turbo and CnC enabled.
If I OC using the bus I can start hitting the low 40s with 4GHz CPU, and tighter timings for the ram (8-8-8-22-30).

I am happy with these results however:

I have done benchmarks before and when I first installed the card last week (my comp was OC then) I somehow benched 62.04fps in Cinebench. I am starting to wonder if it was a fluke as I have tried my hardest to get back to those specs. I know that benchmarks don't mean everything when it comes to noticeable performance but double the stock fps is something that is very enticing.

Here are the limited specs that Cinebench saves when you do a benchmark:

-------------- 62.04 FPS --------------
6 Cores, 6 Threads @ 3.81GHz
AMD Phenom II x6 1090T Processor
ATI Technologies Inc., ATI Radeon HD 5700 Series, OpenGL Version: 4.1.10666 Compatibility Profile Context
Windows 7, 64 Bit, Professional Edition Service Pack 1 (build 7601)


-------------- 40.24 FPS --------------
6 Cores, 6 Threads @ 3.92GHz
AMD Phenom II x6 1090T Processor
ATI Technologies Inc., ATI Radeon HD 5700 Series, OpenGL Version: 3.2.9704 Compatibility Profile Context
Windows 7, 64 Bit, Professional Edition Service Pack 1 (build 7601)


Any help on this would be greatly appreciated!

More about : anomaly

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a b K Overclocking
May 12, 2011 2:43:30 AM

Great. Thanks a lot. Now you've got me intrigued. :p 

I read this thread and immediately opened up Cinebench. Ran all the tests and noticed that there was what appeared to be a hugely inflated OpenGL result saved.

Current: 42.62
Saved: 70.10

Opened up Afterburner and clocked the GPU and memory up to unstable speeds. Re-ran the test: 42.86. That doesn't make sense. Returned the GPU/memory speeds back to stable overclocked speeds.

Remembered that I hadn't rebooted in a while. Did that, then let the machine sit at the desktop for three minutes before re-testing. Noticed that the GPU fans ramped up a bit during the run (I have a custom fan profile in Afterburner) -- it didn't do that before the reboot. Result: 70.18! Did a double-take and re-ran the test. Again with the fans going faster. Result: 70.18!

Opened up Chrome and started this reply. Re-ran the test one more time. The turbines once again change to a higher pitch. Result: 70.18!

Hmmm...
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May 12, 2011 4:06:37 AM

Well the fact that someone else can have the same results is a little bit comforting. It is also very intriguing!

I just wish that I could get the higher results to duplicate on my system, then I could have a better chance at figuring out what is going on!

btw ... what CPU and GPU are you using?
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a b à CPUs
a b K Overclocking
May 12, 2011 4:43:39 AM

2500K @ 4.8GHz
GTX 570 @ 925 core 4200 memory stable settings (unstable settings were 1000 core 4400 memory)
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a b à CPUs
a b K Overclocking
May 12, 2011 4:34:25 PM

I really don't see the point of running 4.8ghz, unless your power bill is too low and you like noisy fans.

Your 2500K at stock speed can keep a GTX570 at 100% without a sweat, as could my stock i3.
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a b à CPUs
a b K Overclocking
May 12, 2011 4:43:14 PM

That might be true for some stuff, but not for others. It doesn't finish Einstein@Home work units as fast at stock speeds. That's what my machine is doing most of the day.
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a b à CPUs
a b K Overclocking
May 12, 2011 4:53:01 PM

Ok Einstein, gotcha. :pt1cable: 

Whatever that is, do they pay you for your extra 50w of electricity your burning all day?

I think they would be happy with just your stock cpu's work.
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a b à CPUs
a b K Overclocking
May 12, 2011 6:53:56 PM

They would ... but I wouldn't. :D 

I don't mind paying extra.

The six Scythe S-FLEX SFF21F 1600RPM case fans and the three Yate Loon D12SM 1650RPM radiator fans would still be rotating at full speed no matter what the CPU speed was. The little bit of fan noise doesn't bother me or anyone else here.
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a c 111 à CPUs
a c 249 K Overclocking
May 13, 2011 1:45:35 AM

2500K @ 4.5ghz w 580GTX stock clocked = 76.20
2500K @ 4.7ghz w 580GTX stock clocked = 80.80
2500K @ 5.0ghz w 580GTX stock clocked = 85.74

I pay my own electrical bills, nuff said there!
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