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What Yields the Best Benefit, Higher GPU or Memory Clock? - Page 2

Poll Results: What Yields the Best Benefit, Higher GPU or Memory Clock?

 
  • 93% (42)
    GPU
  • 6% (3)
    Memory
45 Total Votes  
post #11 of 24
If your memory is at anything over 17-1800 the core clock will hold you back.
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post #12 of 24
Thread Starter 
Quote:
Originally Posted by PhilWrir View Post
If your memory is at anything over 17-1800 the core clock will hold you back.
And then, as he types this, I find out exactly what he is talking about!

So, when I set my GPU clock to 1000, could my memory be holding me back?
Edited by BWG - 3/29/11 at 1:01pm
 
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post #13 of 24
From what I have seen and read the core clock yields the most performance boost. Now there are some cards with too small memory buses that do get a higher boost from overclocking the memory to unleash the held back potential.
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post #14 of 24
In almost all scenarios raising the core clock speed will impact performance more than changes in the memory clock speed. Performance gains can definitely be had by increasing memory clock speed though.
    
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post #15 of 24
BTW, what benchmark are you using to do your testing, and what settings are you running? Generally speaking as resolution and AA levels go up, memory OC scaling % tends to go up (although it's unlikely to exceed the core scaling %).

For example, if you compare Vantage Performance results vs. Vantage Extreme results, you'll find that the core OC scaling will go down a bit, and the memory OC scaling will go up a bit.

Edit: Oh, I see, 3dMark11 on stock settings. This test is probably going to heavily favor the core OC. Low res, low AA, and some tests have tessellation (which is totally core speed dependent), so ... yeah ... memory OC isn't likely to do a whole lot in that scenario.

You should also try it w/Crysis maxed out running 16xQAA, or Metro maxed out (leave off advanced PhysX though).
Edited by brettjv - 3/29/11 at 2:12pm
    
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post #16 of 24
Thread Starter 
I have to get Crisis. I have Metro 2033 though.
 
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post #17 of 24
On my GTX460 I do more core than mem, but I also bump it up aswell. 950GHz and 2000MHz mem(that's just the clock, not the effective rate).
    
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post #18 of 24
If your card has a limited memory bus, then overclocking both the core and memory can net you some extra performance than just one alone.
 
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post #19 of 24
From my personal experience, OCing the core will always give the highest OCing results against OCing the memory, clock to clock raising.
This is even tho you are memory limited.
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post #20 of 24
Quote:
Originally Posted by Anthraxinsoup View Post
On my GTX460 I do more core than mem, but I also bump it up aswell. 950GHz and 2000MHz mem(that's just the clock, not the effective rate).
950GHZ holy **** fastest gpu out there
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