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Overclocking GTX470 to match Stock GTX570

post #1 of 13
Thread Starter 
EDIT: Results now posted downthread at Post #7

We have a small debate over on the 470 OC'ing thread concerning what clocks one would need to run a GTX470 at in order to match the perf of a stock 570. Guesses over on the other thread have ranged from 780MHz (mine) to 880MHz.

YES, YES, I know, the 570 can also be overclocked.

Anyways, could someone who is running a stock 570 and a 9xx-series i7 at/around 4.0GHz please post a screenie that shows all the individual test scores and the GPU score (or alternatively, an Orb link will work, I can post the screenie from it for you ) of your results from a run of 3dMark11 at default settings, so I can figure out just how much OC'ing I'd need to do on my 470 to match the score?

Let's go ahead and do this on the newest WHQL drivers, 275.33

Also, if you have two in SLI, getting results from a SLI run at stock clocks would also be fantastic. And if you're really bored results from a 'max OC on air' would be sweet, too ... single card and/or SLI.

TIA,
Brett
Edited by brettjv - 6/2/11 at 1:13am
    
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post #2 of 13
Check this:
This should answer all your questions.

I reckon 840/1680 to match performance. In almost everything. (Gaming, benching, etc.)



These results are at 825/1650... So my estimate was close
Edited by Nutty Pumpkin - 6/1/11 at 10:17pm
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post #3 of 13
The new 275.33 drivers bring quite a big boost in 3D Mark 2011.
post #4 of 13
Thread Starter 
Quote:
Originally Posted by Nutty Pumpkin View Post
Thanks ... but you'll find my comments already on that thread from back when it was done. My recollection from the results of it is what led me to guess the clocks that I guessed

And although that thread provides good info to estimate with, I'm interested in knowing *exactly*. It would also be cool to see some SLI results.

Is anyone going to step up here with fulfilling my request, or y'all gonna hang a brother out to dry?

EDIT:
Quote:
Originally Posted by Wulfgar View Post
The new 275.33 drivers bring quite a big boost in 3D Mark 2011.
Sweet ... I'm d/l'ing them now and will update the OP asking for the tests to be run w/our shiny new driver.
Edited by brettjv - 6/1/11 at 10:50pm
    
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post #5 of 13
http://3dmark.com/3dm11/1306129?show...&dm05Results=0

Here you go 275.33 drivers were used.

This is at 940core 2150mem
http://3dmark.com/3dm11/1306212?pcmV...&dm05Results=0

Edited by nagle3092 - 6/1/11 at 11:23pm
 
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post #6 of 13
Some 470 SLI love for you brett




4200 mem, muahahah
    
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post #7 of 13
Thread Starter 
Thanks Nagle!!!
(you too Balla ... pretty sick score)

==============================================

GTX570 Results
(from Nagle), test run with Sandy Bridge at 4.5GHz

GTX570 (732/1900)
Overall: 5726 (the Sandy helps here )
GPU: 5329

==============================================

GTX 470 Results (from brettjv), all tests with i7 930 @ 4.021Ghz

GTX470@780/1800
Overall: 5553
GPU: 5150

GTX470@800/1800
Overall: 5651
GPU: 5251

GTX470@825/1800
Overall: 5814
GPU: 5435

==============================================

So, doing a bit of quick math here, it looks as though a gtx470 needs to be OC'd to 811MHz/1800MHz to match a stock GTX570.

I dunno why but I was thinking that a 570 had the same stock clocks as a GTX480 (702MHz I believe), which led me to calculate that the 470 would only need to be at around 780/1800 to make up for the 570's shader, texture unit, and small memory clock advantage. Which is why I was off by exactly 30MHz in my guess of 780MHz

Now, you wanna see something crazy?

EDIT: I've started a new thread to discuss what I'm seeing w/the SLI scaling.

Check out my SLI results:

SLI GTX470@780/1800
Overall: 9817
GPU: 10374

SLI GTX470@825/1800
Overall: 10213
GPU: 10868

Thus, on the four tests of 3dMark11, my SLI scaling at (825/1800) works out to:
Test 1: (46-23)/23 = 100%
Test 2: (49-24)/24 = 104%
Test 3: (70-33)/33 = 112%
Test 4: (34-17)/17 = 100%

Check my screenshots (pics 3 and 5) if you don't believe me ... I dunno what nV did with these new drivers, but they are producing ABSURD SLI scaling on 3dMark11





Edited by brettjv - 6/2/11 at 1:37am
    
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post #8 of 13
OK, I will contribute to this thread.

With an i7 965 at 4.02 GHz and driver 275.33, my GTX570 at Nvidia reference 732/1900 yields a Graphics Score of 5261 in 3DMark11.

See pic below.

Edited by windfire - 6/2/11 at 6:32am
post #9 of 13
http://3dmark.com/3dm11/1302880;jses...h9mdT40MVCpm6M

Strange, I get 5534 graphics score on my card.
post #10 of 13
Thread Starter 
Quote:
Originally Posted by Wulfgar View Post
http://3dmark.com/3dm11/1302880;jses...h9mdT40MVCpm6M

Strange, I get 5534 graphics score on my card.
That is strange ... you're at 800/1800, and getting better score than I get at 825/1800. 1 fps better on tests 1 and 2, 2fps better on 3, and same on test 4.



I wonder why this could be? Am I underperforming, or are you overperforming? My OS install is hella old is the only thing that pops into mind. I wonder if it could be ram ... mine is pretty crap timings and such.

Are all your driver settings at default? Do you disable aero or change anything about windows like turning off page file, or ... like, how do you do it? I'm baffled.
Edited by brettjv - 6/2/11 at 10:59am
    
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