Some early 4870 overclocking results

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xp3nd4bl3

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My card had no problem maxing out the CCC overdrive speed of 790 MHz so I tried using the AMD GPU clock tool to push it further. Anything much beyond 800MHz though was completely unstable. I attributed this to the fan spinning very slowly. I finally managed to get my overclocks to work while keeping the fan running at 70%. I got my card stable at 860 MHz GPU and 1000 MHz GDDR5.

I know 3DMark06 is dumb, but for pure comparison's sake

4870 stock
4870 overclocked

And from the exact same system

GTX 280 stock

I haven't had much success overclocking the 280.
 
Not bad! I can hit 810mhz stable, and score around 16380 3D06marks... I top out at around 93c though, which I attribute to my poor OC performance.

How did you get your fan speed to stick with AMD GPU Clock tool?
 
Arcygenical said:
Not bad! I can hit 810mhz stable, and score around 16380 3D06marks... I top out at around 93c though, which I attribute to my poor OC performance.

How did you get your fan speed to stick with AMD GPU Clock tool?
Click to expand...

Follow the guidelines for the "fan fix" using the modified CCC profiles. Once you have your profile to your desired fan speed, reboot. Upon booting Windows apply your clock with the GPU clock tool, THEN apply the Catalyst profile for the fan speed. If you want to change the clock again with the tool you have to reboot again to be able to apply the CCC profile.
 
xp3nd4bl3 said:
My card had no problem maxing out the CCC overdrive speed of 790 MHz so I tried using the AMD GPU clock tool to push it further. Anything much beyond 800MHz though was completely unstable. I attributed this to the fan spinning very slowly. I finally managed to get my overclocks to work while keeping the fan running at 70%. I got my card stable at 860 MHz GPU and 1000 MHz GDDR5.

I know 3DMark06 is dumb, but for pure comparison's sake

4870 stock
4870 overclocked

And from the exact same system

GTX 280 stock

I haven't had much success overclocking the 280.
Click to expand...
try benching games
 
I can bench Crysis but I'll tell you right now my GTX 280 is way better in Crysis than the 4870.
 
Here you go.

Crysis 1920x1080 DX10 HIGH Assault_Harbor benchmark

4870 stock clocks 29.47 FPS avg
4870 860/1000 32.45 FPS avg

GTX 280 stock clocks 33.75 fps avg

and to be fair the GTX 280 has been moved to my media center which is a 780i board with an e6850 @ 3.6ghz.

If you want to play Crysis I highly recommend the 280. When I loaded it up to test it out, the game ran so well compared to my SLI G92 GTS setup that I replayed the whole damn game. The 4870 doesn't handle Crysis nearly as well. Though all the other games that I play I can't tell a difference in gameplay between the two cards.
 
I just scored a mere 12,369 on my first run of 3DMark06.

With a stock, 750MHz 4870 inside a Q9300 (also running stock @ 2.5GHz)...do I just suck or is this about what I can expect?

Oh, resolution: 1680x1050
 
Perini said:
I just scored a mere 12,369 on my first run of 3DMark06.

With a stock, 750MHz 4870 inside a Q9300 (also running stock @ 2.5GHz)...do I just suck or is this about what I can expect?
Click to expand...

Why aren't you overclocking your CPU? What were your scores breakdown?
 
xp3nd4bl3 said:
Why aren't you overclocking your CPU? What were your scores breakdown?
Click to expand...

I actually don't have a clue how to overclock a CPU.

Sorry, forgot to mention I was running 1680x1050 resolution.

I'll run it again at the standard resolution.

Anybody know how I can force the 4870 to do Vertical Synch? The tearing drives me crazy sometimes.
 
Just scored a 12,816 with everything set to default on 3DMark06.

I guess I need to overclock the CPU / GPU to see a significant increase?

Here's the breakdown:

SM2.0 Score: 4901
HDR/SM3.0 Score: 6077
CPU Score: 3731
 
xp3nd4bl3 said:
Follow the guidelines for the "fan fix" using the modified CCC profiles. Once you have your profile to your desired fan speed, reboot. Upon booting Windows apply your clock with the GPU clock tool, THEN apply the Catalyst profile for the fan speed. If you want to change the clock again with the tool you have to reboot again to be able to apply the CCC profile.
Click to expand...

do you have to re-apply your OC with the GPU clock tool every time you power cycle your computer?
 
Porter_ said:
do you have to re-apply your OC with the GPU clock tool every time you power cycle your computer?
Click to expand...

Yes... It seems so,

HOWEVER, With this chain of commands, I'm stable at 865mhz, 60% fan speed (which is louder than my fucking room AC) and I load at around 71c.

Got an EK 4870 block coming soon though ;)
 
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