EVGA Geforce 8800GTS 640 Overclocking

Oct 1, 2003
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If I purchase the normal version of this EVGA card(500/800) what are the chances of me overclocking it to the same speeds as the Superclocked version of the card which is 576/850 I think. It looks like they use the exact same cooling setup on both cards so no point in spending the extra cash if I can just set it to the superclocked speeds.
 

Kromis

Diamond Member
Mar 2, 2006
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Originally posted by: SilentAssassin
If I purchase the normal version of this EVGA card(500/800) what are the chances of me overclocking it to the same speeds as the Superclocked version of the card which is 576/850 I think. It looks like they use the exact same cooling setup on both cars so no point in spending the extra cash if I can just set it to the superclocked speeds.

99.9% Guarantee.

:D

For reals.
 

MarcVenice

Moderator Emeritus <br>
Apr 2, 2007
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I got my 8800gts to 600/1000 no problemo. With some other tricks you can overclock the shaderclocks too. But thats a bit more complicated. In fact, the rivatuner options kinda dazzled me, and I don't wanna mess around with it.

Also, when I did overclock my card, I didn't really notice an improvement in games :p
 

videopho

Diamond Member
Apr 8, 2005
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Originally posted by: MarcVenice
I got my 8800gts to 600/1000 no problemo. With some other tricks you can overclock the shaderclocks too. But thats a bit more complicated. In fact, the rivatuner options kinda dazzled me, and I don't wanna mess around with it.

Also, when I did overclock my card, I didn't really notice an improvement in games :p

Marc-
You need to run Frag to gauge the in-game's fps.
Best yet, run Mark06.

Mine is currently @ 615/1000 and stable.
My Mark06 jumps from 9100 to well over 10k from default speed to 615/1000.
In the game of FSx, its frame rate improves at least 10-15%
Now I'm just waiting for better driver released from these Nvidiot guys and my patience is running thin.
 

MarcVenice

Moderator Emeritus <br>
Apr 2, 2007
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frag ? I used fraps. World in Conflict's built in benchmark tool with fps gauge showed no improvement either though.
 

videopho

Diamond Member
Apr 8, 2005
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Originally posted by: MarcVenice
frag ? I used fraps. World in Conflict's built in benchmark tool with fps gauge showed no improvement either though.

Frag?
LOL
My morning caffeine had not kicked in.
It could very well be that of Nvidiot's driver issue if your fps did not improve.
 

chizow

Diamond Member
Jun 26, 2001
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As others stated, its more or less guaranteed with one small caveat. Make sure you have decent case cooling. A side case fan is ideal, but good front intake and back exhaust should be sufficient for an OC in the 580-600 range.

You can also increase the fan speed to help your OC; I'm able to increase it to 85% before its audible over the other fans in my case. Just use something like Speedfan or nTune to monitor your load temps when you OC and make adjustments from there. 70-75C under load OC'd is pretty normal, higher than that and you may start getting instability and artifacting.

Lastly, the OC'd version may have slightly more OC'ing headroom than the regular, although I haven't really seen anything to substantiate this. I'm running an early 640MB model from January and its been running at 621/1000 without any problems since. Many are able to go a bit higher, but unless the OC versions are consistently hitting 650 or so I'd say its not worth the premium.
 

Skott

Diamond Member
Oct 4, 2005
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Doesnt the Superclock version have a slightly different cooling system on it than the regular? In the past eVGA added a bit more cooling to their OCed cards. Usually the ACS3 system. But yeah, you should be able to get to the Superclock's performance with proper cooling on a regular 8800GTS
 

aka1nas

Diamond Member
Aug 30, 2001
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They have multiple OC'ed SKUs. You have to go up two or three models to get the AC3-equipped version from EVGA.