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GTX470 915mhz OC Versus GTX580 stock clocks? - Page 2

post #11 of 118
Quote:
Originally Posted by BigCactus;14488063 
So it's about the equivalent so long as vram is out of the equation. So it should be equivalent in most 1080p games or less. I'm faster than a 6970, gtx480, gtx560, and gtx570 at stock clocks I suppose.

A GTX 570 is about 10-15% faster clock for clock than a GTX 470. If you clock your 470 that high it will certainly be faster than a stock 570. Also the GTX 570 is faster than all the other GPUs except the 580 obviously, so yes it's going to be faster wink.gif
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post #12 of 118
Thread Starter 
Quote:
Originally Posted by HomeDepoSniper View Post
na, 580 destroys the overclocked 470. Since 470 and 560 ti are similar in performance.

The only "proper" versus match would be an OC'd 570 vs stock 580. And you would need to be around 850 to 875 core on the 570 to match the 580 stock speeds.

I wouldn't bother OC'ing to 915. Either get it stable at 950 or lower the votlage down to keep it around 875/900. The fps gains are only around 2-3 fps in Physx and some-what demanding games.
but the oc'd 470 is faster than a stock 570 so naturally i'd compare to a stock 580.
    
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post #13 of 118
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post #14 of 118
Actually the 570 is only 6% faster clock for clock vs 470, it has been proven here on overclock.net

An extra 32 cuda cores amount to 6% extra performance so theoretically the 580 would be 12% faster clock for clock.

There's 0 difference between the cards with regards to Vram at 1080p so that doesn't have any impact.
post #15 of 118
Thread Starter 
im using msi afterburner and the highest it will let me go is 915
    
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post #16 of 118
Holy cow, that's a 50% increase in clocks vs stock on 470! Great job. If 50% clock increase translates to at least 30% performance increase, I think it can match stock 580 performance.

How about we run some benches to compare? I'll drop my clocks to 580 reference; we can start with heaven 2.5 maxed out. I definitely want to see how 470 performs @ 915.
post #17 of 118
Quote:
Originally Posted by Wulfgar View Post
Actually the 570 is only 6% faster clock for clock vs 470, it has been proven here on overclock.net

An extra 32 cuda cores amount to 6% extra performance so theoretically the 580 would be 12% faster clock for clock.
It's not as simple as that. The 580 has 48 ROPs meanwhile the 570/470 have 40. The 580 also has 64 texture units vs the 56 on the 470.

So even at the same clocks the 580 has a significant advantage before accounting for shaders.

That said, I'd be surprised if a 915core 470 isn't comparable to a stock 580.
post #18 of 118
Quote:
Originally Posted by Grindhouse View Post
Sorry, but not really. 448 processor cores VS 512..... Overclock or not, you can't magically get those 64 cores.

If it was that easy to get the GTX 580 performance, nobody would pay 450-500$ for a GTX 580.
That's like saying nobody would buy a Ferrari because the speed limit is 100 km/h.

Quote:
Originally Posted by Booty Warrior View Post
It's not as simple as that. The 580 has 48 ROPs meanwhile the 570/470 have 40. The 580 also has 64 texture units vs the 56 on the 470.

So even at the same clocks the 580 has a significant advantage before accounting for shaders.

That said, I'd be surprised if a 915core 470 isn't comparable to a stock 580.
Oh alright, didn't know about those. Still I'd like to see some benchmarks, maybe a Heaven 2.5 Extreme Settings @ 1080p ?

That should be a pretty good indicator of all-around performance, especially in graphics intense games.
post #19 of 118
From all my benches my 470s @ 900 core 2150 mem trade blows with stock 580 SLI at 1080p and below.
    
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post #20 of 118
Getting 915Mhz in GTX470 is like getting 1Ghz in GTX580. Most GTX470 stop ~ 800Mhz and GTX580 ~ 900Mhz reference models. GTX470 @ 915Mhz should be as fast as GTX580 but what did it take that GTX470 to get there and lets not forget GTX580 is not worth $500 price tag when you talk strait up performance.
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