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GTX 570 OCs and performance scaling?

post #1 of 10
Thread Starter 
I've been thinking of getting a 570 but I want to see how well they OC and how well performance in games (any) scales per clock. I'm also considering a 6970 btw
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post #2 of 10
http://www.guru3d.com/article/geforc...70-sli-review/
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post #3 of 10
Most 570s will easily OC to 850 core.

At that speed you are @ a 580 stock speed.
    
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by MrTOOSHORT View Post
Most 570s will easily OC to 850 core.

At that speed you are @ a 580 stock speed.
Will performance be comparable?
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post #5 of 10
At higher resolutions and higher detail settings, you will notice tremendous improvement in your fps when going with two GTX 570s.

Check the link that appleg33k85 provided. There are several games that were tested with SLI and without. You can see that the scaling gets better as the resolution increases.
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post #6 of 10
Thread Starter 
What is th-

Last time I checked SLI scaling =/= scaling per clock from OCs. What are you guys even talking about?
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post #7 of 10
Most of the time when people say scaling they're talking SLI. Just people not reading thoroughly.

I don't have any scaling graphs on hand, but at 850 core, 570s match 580s, and it's about 50:50 on 570s being able to go beyond that. If you're gaming at 1900x1200 or below, 570 > 6970, but if you go higher than that resolution, the 570 falls behind because of lacking sufficient VRAM. If the 2.5gb 570s weren't Asia only, they'd be the card of choice imo.

If I remember correctly, it's roughly 5% improvement per 50mhz core.
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post #8 of 10
OC Scaling on Fermi's is usually around 60-70% for the core, and 10-15% for the memory.

I don't have graphs and charts but I've looked at it a bunch of times with my rig.

I can OC mine to 855 core, which is a 41% OC. From that, along w/a small bump on the memory (837MHz->900MHz) I usually end up with about 30% higher FPS. So, roughly 75% scaling.

OC scaling was distinctly better on Fermi vs. the Cypress chips but I've not owned a Barts or Cayman card so I dunno how their OC scaling is.
    
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by -Apocalypse- View Post
Most of the time when people say scaling they're talking SLI. Just people not reading thoroughly.

I don't have any scaling graphs on hand, but at 850 core, 570s match 580s, and it's about 50:50 on 570s being able to go beyond that. If you're gaming at 1900x1200 or below, 570 > 6970, but if you go higher than that resolution, the 570 falls behind because of lacking sufficient VRAM. If the 2.5gb 570s weren't Asia only, they'd be the card of choice imo.

If I remember correctly, it's roughly 5% improvement per 50mhz core.
What about hi-res texture mods and the like
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post #10 of 10
I`m happy with my gpu`s oc from stock to 800 1600 2000 1.05 volts with stock cooling 34 deg c idle 57 deg c under stress benchmarks are better and fps is higher cant complain at all beats the two 4870`s in crossfireX thats for show....
    
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