Seemingly disappointing OC results on Sapphire 7950

[cab11150904]

I am posting a screenshot of the results from Unigine Valley.  The left test is at 925MHz and the right is at 1200MHz.  The improvement seems so small.  Any idea what might have caused this or are the returns for 275MHz really just that low?

 

[Lawliet93]

Well, use the afterburner software to determine your clock speed during the test, it's possible, that your GPU is not actually running at 1,2GHZ (that's like a 30% overclock, the score should be higher than your current score, although not by 30%, because the performance of a GPU does not scale linearly with the frequency).

[xAcid9]

 

I am posting a screenshot of the results from Unigine Valley.  The left test is at 925MHz and the right is at 1200MHz.  The improvement seems so small.  Any idea what might have caused this or are the returns for 275MHz really just that low?

Show me your MSI Afterburner screenshot. 

[IateMApoo]

Overclocking on GPUs isnt that useful anyway, theres GTX 980s running at 1600 MHz and only giving 2 more fps than at stock speeds in Valley.

[xAcid9]

Overclocking on GPUs isnt that useful anyway, theres GTX 980s running at 1600 MHz and only giving 2 more fps than at stock speeds in Valley.

 

Don't compare Maxwell/Kepler with the mighty old Tahiti. Blame GPU Boost for that 2 fps gain. 

[IateMApoo]

Don't compare Maxwell/Kepler with the mighty old Tahiti. Blame GPU Boost for that 2 fps gain. 

Any freakin real world benchmark shows that GPU OC is worthless.

[xAcid9]

Any freakin real world benchmark shows that GPU OC is worthless.

Let me demonstrate using the badly optimize AC:Unity as real world benchmark. 

 

My card at stock clock 850/1250 = 44fps

 

Overclocked to 1150/1500 = 56fps

 

12 FPS different, that is 27% improvement for 35% overclocked, it's even better on GPU bound game.

[Kinda Bottlenecked]

Any freakin real world benchmark shows that GPU OC is worthless.

What? Oc isn't worthless.

(will update with me oc )

[IateMApoo]

Let me demonstrate using the badly optimize AC:Unity as real world benchmark. 

 

My card at stock clock 850/1250 = 44fps

 

Overclocked to 1150/1500 = 56fps

 

12 FPS different, that is 27% improvement for 35% overclocked, it's even better on GPU bound game.

Unity ? Srsly ? My fps jumped up and down in same areas in different gaming times in it, not very credible presentation there.

[xAcid9]

Unity ? Srsly ? My fps jumped up and down in same areas in different gaming times in it, not very credible presentation there.

I'm at the very early area where it's more GPU bound than CPU bound, not at Paris city where it's CPU bound hence inconsistent fps.

[Morgan Everett]

Any freakin real world benchmark shows that GPU OC is worthless.

 

Perhaps for you, but it makes a noticeable improvement for me. Honestly, this is just a really, really silly thing to say. 

[AlexWJD]

Overclocking on GPUs isnt that useful anyway, theres GTX 980s running at 1600 MHz and only giving 2 more fps than at stock speeds in Valley.

 

Because the memory clock is more important than the coreclock.

[cab11150904]

Because the memory clock is more important than the coreclock.

I was 90% sure it was the other way around.

[AlexWJD]

I was 90% sure it was the other way around.

 

Of course it depends but for me I've always found that the memory clock gives me the most FPS boost in games.