Best 8800 GT overclocks

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@papasmurf211

Brand is BFG 8800GT OC stock settings = 625/1566/900

First change was to remove the shipped cooler and to replace it with the Zalman VF1000,
however the Zalman packaged ramsinks are square and very low profile, the 8800GTs memory chips are rectangular,
so I made my own ramsinks from an old aluminum Pentium CPU heatsink.

Stock cooler idle temp w cooling fan on high = 48c with stock settings
Zalman w custom ramsinks idle temp w cooling fan on high = 38c with OC settings

Note; The Zalman VF1000 is worth every cent I paid for it!!!!!!!

If you're going to get a good OC out of this card you have to keep it cool,
GPU and Memory to give you a good base to start with, this card has not
been volt modded.

My present OC that I've been running for 2wks now is 732/1834/1050

It will complete 3DM03, 3DM05, and 3DM06 also the F.E.A.R. bench and plays Crysis flawlessly.

I'm still testing her as she will go further, had her at 748/1874/1050 would complete the 3DMs
but for some reason the F.E.A.R. bench wouldn't run.

The volt modd would allow it to go further, however she's already shaming posted benchmarks
of a stock 8800GTX Ultra, for about 1/3rd the price, so I really don't see the need to Vmod it,
[Yet, but not excluding the idea], but fully intend to BIOS flash the speeds she's running,
and lock them in as the new stock settings.

 
@papasmurf211

Brand is BFG 8800GT OC stock settings = 625/1566/900

First change was to remove the shipped cooler and to replace it with the Zalman VF1000,
however the Zalman packaged ramsinks are square and very low profile, the 8800GTs memory chips are rectangular,
so I made my own ramsinks from an old aluminum Pentium CPU heatsink.

Stock cooler idle temp w cooling fan on high = 48c with stock settings
Zalman w custom ramsinks idle temp w cooling fan on high = 38c with OC settings

Note; The Zalman VF1000 is worth every cent I paid for it!!!!!!!

If you're going to get a good OC out of this card you have to keep it cool,
GPU and Memory to give you a good base to start with, this card has not
been volt modded.

My present OC that I've been running for 2wks now is 732/1834/1050

It will complete 3DM03, 3DM05, and 3DM06 also the F.E.A.R. bench and plays Crysis flawlessly.

I'm still testing her as she will go further, had her at 748/1874/1050 would complete the 3DMs
but for some reason the F.E.A.R. bench wouldn't run.

The volt modd would allow it to go further, however she's already shaming posted benchmarks
of a stock 8800GTX Ultra, for about 1/3rd the price, so I really don't see the need to Vmod it,
[Yet, but not excluding the idea], but fully intend to BIOS flash the speeds she's running,
and lock them in as the new stock settings.

 


Who knows perhaps your memory OC on your 88GT is destroying it like JohnnyGuru mentioned causing the new toms hardware page to load slowly muahhaha....jk. But not about damaging the memory interface by OC your 88GT's memory past 1Ghz.
 
@bildo123

Nothing lasts forever man, I bought this card specifically to OC it, and if the mem interface couldn't handle the speed it wouldn't stably get to 1050 but it does, thats what OCing is all about isn't it, to make something cheap blow the doors off an expensive top of the line card like the 8800ULTRA, you can buy 3 of these for 1 of those Ultras, but for what its already dethroned.

The new toms hardware page is just flat sloooooooooowwww, none of the other websites load and open this slow and take so long to post a reply, and it doesn't have a thing to do with my gpu's memory interface....Not a jk.
 
I'm not digging new Toms.

My two 8800GT EVGA superclocked (stock 650/950) will only get to 720/2100, however I am very happy with that. Sometimes I get some errors on ATI tool but only occassionally. I set it back downt to 700/2000 (shader linked with core) and it runs flawlessly. I am very pleased with the performance.

However... I have said this before and will say it again. The Zalman VF1000 didnt do jack for me. Yeah they cool better but I got to 720/2100 before no problem. I can live a little easier knowing that the temps are good. I put them on with AS5 and used the variable speed knobs. The idle temps are about 42 with cpuid's program. A little lower with gpuz program like 38. That's at low fan speed. I thought it would a bit cooler especially with my Antec 900 and all it's fans but I guess not. They do mount nice though. I did have to do some sawing as my SLI connector didnt fit at first. Oh well!

I have to say... the 8800GT needs a volt mod. I have seen people get some great performance out of 8800GTX with volt mod. Havent really looked into GT but bet it would hit upper 700's core and easily 2000 shader. Maybe not but that would be cool. I'm not willing to do soldering though if that's how you do it.
 
Well, I am skeptical of Johnny Guru's warning. If your card is working fine after around 6 months let me know, because I'm gonna do the same. You can be the guinea pig. :sol:

And I would really like to know since in my personal testing OC the memory on my 88GT from 1800 to 2080 gave me a nice 6FPS increase in a game.
 
This is my stable OC

Msi 8800gt G92 chip , dual slot cooling

untitledd-1.jpg
 
oc'd my 8800GT today and got 696/linked/1000

not huge but im on stock cooling the highest my temps get to is 75 under ATI artifact testing, so im happy.

does anybody think removing the stock cooler and applying AS5 would help with temps?

also i've used riva tuner to set up two profiles for my card now, so i run 400/500 on my destop and crank the fan right down so i cant hear my pc when surfing/working etc and i save power. my gaming profile cranks the fan up but i cant hear it over the screams of my adversaries anyways 😛
 

I did that with my old 8800GTS 320MB and temps dropped about 3C after cure time.
 



That doesn't seem quite right. I have PNY 8800GT (640,1600,950), Biostar Geforce 6100, and 4600+ X2 @2.7 and my score with that is 9724 marks (SM2.0 4357, HDR/SM3.0 4829, CPU 2083) You may have Nvidia control panel enhancing games and 3DMark while testing you should check that, because it doesn't add up.
 
back again! just ran 36mark06 to compare my marks:

8800GT @ 696/linked/1000

sm2 5610
sm3 5650
cpu 2615
overall 11999!

i was very happy with the overall score considering my specs and the fact im running everything on stock cooling with reasonable temps.

im pretty sure i could push the card further but that would be at the expense of heat, noise and stability so im going to leave it where it is
 


I'm not quite sure what you mean is "not adding up"? Please elaborate. Now I have diff system. Same original card but added another and a E8400. My score is substantially higher than it used to be. Almost breaking 20K. My previous score of 9K was very good IMO. However the extra bandwidth that the card was overclocked to didnt really show to much with my old set up. Now with a single card I get substantially higher than I used to. I will post back once I disable SLI and see what I'm getting.
 
Alright... With my new set-up and with SLI disabled here are my scores:

SM 2.0: 6073
SM 3.0: 5756
CPU: 3269
overall: 13186

My old SM scores I think were due to the poor bandwidth of my old 939 socket board. This board has much higher bandwidth obviously and that's why my score's for a single card are so much higher than they were with a single card on my old board.

The old 4600+ X2 that I had was very buggy too. I was hard to overclock... Oh and the overclock on this single card was 720(linked)/1030 so much higher than my old board allowed.
 
Anyone else having problems with these? Crysis will not play for more than 5 minutes at 700/1000. I cant overclock them if I want to play Crysis. I have superclocked edition by EVGA 650/950.
 
Ive got my MSI NX8800GT with the nice aftermarket cooler OC'ed to 700 core/ 1700 shader and 1Ghz on the RAM. I cant get it to go any higher and remain stable, was using the video stress test in CS:S as my stability test, anything over these settings and it wants to hang on me.

In RivaTuner, if you bring up the hardware monitoring, has anyone else noticed that the clockspeeds read there seem to move in 'blocks'. For instance, any setting between say 696 and 703 yeilds a core speed of 701Mhz(Hypothetical numbers, I dont remember where the cutoffs happen) Yet GPUz shows the speed that is set. Which one is right?
 



Crysis gave me an error message saying, "Your emulation software is conflicting with the Crysis game engine", needless to say I was kinda baffled????

What emulation software are you referring to?????

The only thing I could think of was Riva Tuner, so I shut it down and the Crysis problem disappeared.

I didn't realize Crysis would look at Riva Tuner as emulation software since Riva Tuner is set to run its OC'd settings from Windows Startup, but obviously it does.

I'd been testing my OC'd settings for some time now preparing to BIOS flash the settings to the card so the OC'd settings will be the default settings of the 8800GT after I flash it, I guess I'll have to go ahead and flash the card because Crysis is one of the main games I've been playing lately.

Of all the other games I've tested my OC'd settings on using Riva Tuner, Crysis is the only one to give the emulation error.

Anyone else run into a conflict with Crysis and Riva Tuner????
 
I guess this makes very good sense. In fact no matter how much I overclock the card (Caused problems at 675 from 650 stock) Crysis will crash. I have never seen the emulation error message though.

I will try Nvidia control panel.
 



If you don't mind post back what you discover? Please
 
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