How high have you overclocked your 8800m gts?

I've gotten mine to core: 650 mem:900 shaders:1600. Played Crysis for an hour and had no artifacts. Temps didn't go past 75. I'm afraid to go farther... for now. How about you?

 

650,950,1500 ut3 for hours and hit 65c at most with the back propped up,

 

Haven't tried yet. What are you using to OC? nTune, Rivatuner, or what? Guess I might as well start acting like an enthusiast and OC something...

 

ntune, no need to go anywhere else.
i never tried nything above 600/800/1500

 

If you guys are looking for a good program to stress test with I suggest ATI tool. If you don't crash or artifact with ATI tool you most likely wont crash or artifact in games.

 

from my experience furmark is more demanding and ati tool crashed on my system few times (don't remember which drivers were installed at that time)

 

Cool I'll try it. I suggested Ati tool cause I've used it o oc my x1950xt for the past 3 years

 

yep on ati cards it works wonders though my x1950pro was reluctant to o/c

 

I tried furmark and I must say it gets your temps up FAST!!!. Only problem I have is a weird artifact near the center of the ring when I turn 4xmsaa on. Looks like white lines in between the hairs. anyone else see that? Everything else is fine without msaa. I'll keep testing


edit: ran it for 10min at 600/900/1500 temps maxed at 78!!!! wow
what is a safe range for a notebook gpu?
also what do artifacts look like in furmark?

 

I matched your clocks and ran the test with 4x and i didn't get any artifacting, but different cards are able to OC differently. My first 6860's card wouldn't allow for any OC i think i was able to raise the shader clock by 24 before it started going crazy. This one apparently can go a lot higher than my last card

But yeah the test will shoot your temps up pretty quick...its amazing how difficult a big ring of fur is for a videocard to render

Our thermal limit is around 100C, but i believe they will start to throttle around 92+ to stop damage from occuring

 

@what resolution ?

 

Here is what my "artifact" looks like. I think I'm just being picky.

resolution is 1440 x 900 windowed

 

thats not an artifact, i can see those too from spin to spin. artifacts are UGLY like dook avatar or something...

 

Hahaha.. Awesome, guess that means I will try pushing past 900 on mem.

edit:btw does anyone know what the memory on our 8800mgts is rated up to?

 

Ok after 650/ 950/ 1600 I went back to Ati tool and it started showing artifacts. Something I didn't see with furmark.

 

I went straight to 700/950/1750. it was still stable, but i actually lost preformance (dropped about 1-2FPS) So i guess i'm not able to go that high. I'm pretty much going to stick with stock clocks until i need a few extra FPS then i'll engage the profile that matches the 9800 clocks

 

Try running the artifact scanner in ati tool and see if you get any errors.
edit: also what kind of temps did you have?

 

I'm running it with 725/950/1750

According to ATI tools i have no artifacts and running a stability test with furmark at 1440x900 with 4xmaa i'm getting max temps of 63c.

Somehow i dont buy that as when its clocked that high it runs worse than with factory settings. So i think things like that are too high. Who knows though

 

Ok. I'm gonna start using these clocks on startup 600/850/1500.(temps don't go past 77) I've been overclocking my x1950xt (685/1000) for the past three years and it's still kickin. Do you guys think an oc like this will kill my 8800m gts in the long run ?

edit: Dang Kamin, it does sound a little weird, do your temps change at all when overclocking? Also run 3dmark and then compare performance to see if it is worse than factory settings.

 

Yeah that tanked as well. Went from 7300+ to just over 3K. My card really doesnt like those settings, so matching the 9800 clocks and "maybe" a bit higher is about all i can get

 

Same here. I'm quite happy with that though .

 

My "sweet spot" is 652/948/1452. I ran a bazillion tests to find just the right point where performance is maxed before turning the other way and this is what I ended up with.

 

Just a general question, what program are you guys using to overclock and why?

 

Use nVidia's tool set.

As to why, to get better preformance, and to see how far it can be pushed

 

Reason I'm asking is I see people oc'ing their shaders and I want to know what theyre using, can ntune do that? If so how?

 

Which tests did you run and how often do you use that profile?


As for overclocking shaders. The newest version of ntune has a slider that lets you adjust shader clocks.

 

What version is the newest version?

N

 

http://www.nvidia.com/object/nvidia_system_tools_6.02.html

 

I use a combination of furmark, Crysis Benchmark tool and rthdrbl and use this current profile all the time.

 

I'm fed up with ati tool. Just read a thread saying it is bad for sm2/sm3 artifact testing. Guess I will just use my eyes in games and 3d mark. I wish there was one uber sweet all in 1 artifact tester that automaticaly configured your gpu to max clocks, predicted how long before it fried and served you cold beer when the gpu warmed your room up.

 

I can get mine safe and stable to 675, 970 and maxing at 75C, I got 9657 on 3DMARK06 Oced at 3.0 that is my highest score so far.

 

75C in what program?

 

My question is, in a real game (non benchmark) how much improvement do you get? Is it worth raising the gpu temps by a bit just for 1 extra frame a sec?

 

You are likely picking up 10-15% gain in 3dmark, which just by relation means you should see a similar gain in FPS. Depending on the game of course..but no one would OC for 1-2 FPS.

 

I'm not so sure I agree with that. Large gains in 3Dmark have never seemed to have a corresponding similar gain in games for me. I'm not saying there's no increase at all, but it's not always a similar increase. Part of the reason for that is both ATI and nVidia tend to release updates to their drivers that increase 3DMark results because they optimize just for that benchmark, without actually providing optimization to anything else.

That being said, why not test the results for yourself (this being directed at zergslayer69)? It takes very little time to download and install ntune, pump up your GPU and test a few games. If you can't *tell* a difference from playing and the game doesn't have a built in benchmark utility, you can download and run FRAPS to see if there's a difference you can see. It's always best to test for yourself as you can then accurately gauge whether the OC is worthwhile to you or not...

 

it says 3DMARK06 right in my post..

 

i tend to agree, the 3dmark score never scales as nicely in real games.

 

naw, not usually, i dont game a whole lot anymore though, usually just on my PS3, but when I do it still has never gone over 75C. It only went that high in 3dMARK cause I was OCing.