400/1175 on my 6800GT

[Markbnj]

Heh, trying to stretch the life of my 6800GT because when I upgrade I need a PCIe mobo too.

So is 400 mhz/1175 memclock pretty good? Seems stable. No artifacting in two runs through 3dMark 6. I actually had it at 410/1200, but I saw a teeny artifact every now and then, so I backed off.

 

[BassBomb]

id keep it for awhile

 

[Markbnj]

I'm going to be looking to see if there is some improvement in Oblivion tonight, but I bet it will still make my card whine and grovel in the dirt like a whipped dog.

That's the way it works with me: I can put it off until some game I really like beats my hardware into the dust. If the 17% memclock boost and the 14% gpu clock boost actually make an improvement, then the card may survive a bit yet .

 

[Markbnj]

Oh well, had to back off to 1100 tonight. Hopefully that holds up. Oblivion displayes some artifacts after about 10 mins play at 1150, less at 1125, and then the game went down hard and took windows with it. If it blows up at 1100 tomorrow night I will back off the gpu o/c. 7900 looking better and better.

 

[kyparrish]

I'd stick to 400/1100. Ultra speeds. That extra vram speed isn't going to do a whole lot.

 

[LiekOMG]

I didn't really notice a difference in Oblivion by overclocking my 6800Ultra, although it did appear to hitch a bit less (the game hitches a bit for the first 1-2 minutes of gameplay. Its not too annoying but my R9800Pro didn't do it in Oblivion).

 

[jamesbond007]

Nice OC! I am in the same boat - I took my 6800 vanilla (325/600 stock) to 425/800 stable. I haven't maxed anything out yet since I'm playing it safe. I am not sure if the memory could go higher, but I'm damn pleased with the results. I bought a NV Silencer for it as well to keep the temps down. Even at stock, it was 57-58C idle and ~68C max. Now, even with the OC, it idles at 45-46C and maxes around 50-52C.

I'm gonna try to make my system last another year - I'm looking to jump on the Conroe bandwagon whenever the initial bugs in the chipsets/software is worked out.

 

[Goi]

I'm on 440/1180, but I have an NV Silencer5, which really helped in my overclocks and temps

 

[JBT]

Try the core at 425 ish most of them get there. The 6800 series wasn't to memory bandwith limited so the mem clocks don't make to much of a difference. high memory clocks CAN make the core not clock as high though.

 

[jim1976]

Originally posted by: JBT
Try the core at 425 ish most of them get there. The 6800 series wasn't to memory bandwith limited so the mem clocks don't make to much of a difference. high memory clocks CAN make the core not clock as high though.

QFT
I used mine @420/1180 w/o issues when I had it.. Core speed is much more important in 6800GT..

 

[Markbnj]

Originally posted by: Goi
I'm on 440/1180, but I have an NV Silencer5, which really helped in my overclocks and temps

Yeah, I have a silencer on it already. Great cooler. Still that's quite an o/c you got there. What brand card? Mine's a PNY.

Try the core at 425 ish most of them get there. The 6800 series wasn't to memory bandwith limited so the mem clocks don't make to much of a difference. high memory clocks CAN make the core not clock as high though.

That's interesting, because I overclocked the core speed first, and memoryt second, and the memory o/c made a pretty big difference in 3DMark. I was at around 2400 with 400 mhz core stock memory, and 2750 with memory o/c'd to 400.

Tonight I will try it at 425.

 

[Goi]

Mine's an XFX. I was stuck in the 420s with the stock cooler. The NV Silencer5 bought me another 15MHz or so on the core.

 

[crazylegs]

wonder how many ppl this game has caused to upgrade?

nVidia n ATi must luuuv it

i've got a 7900GT on the way to relieve my trusty 6600GT (struggling @ 580/ 1100)

 

[Markbnj]

Well, I might get 420/1100 out of it. Got through two runs of 3dmark06 and a little bit of Oblivion tonight at that speed. 3dmark was hanging at 425 and 430 even though Oblivion appeared to be artifact-free (I was only testing for about five minutes at a time). Temps are fine in the low 60's with the Silencer.

Funny, though, still feels like vram speed had a bigger effect. My 3dmark06 score is in the 2600's at 420/1100. At 400/1200 it was just over 2700.

 

[jamesbond007]

Originally posted by: Markbnj
Well, I might get 420/1100 out of it. Got through two runs of 3dmark06 and a little bit of Oblivion tonight at that speed. 3dmark was hanging at 425 and 430 even though Oblivion appeared to be artifact-free (I was only testing for about five minutes at a time). Temps are fine in the low 60's with the Silencer.

Funny, though, still feels like vram speed had a bigger effect. My 3dmark06 score is in the 2600's at 420/1100. At 400/1200 it was just over 2700.

Hm, shouldn't your score be higher? I get 2864 in 3DMark06 since my OC to 425/800 on my 6800NU. Your CPU score should kick mine's ass, as a matter of fact.

(P4 3.4GHz HT)

 

[Markbnj]

Yeah, I don't know. Yours is AGP? Maybe the card just sucks. 2700 or so is the best I have gotten out of it so far. This is 3dMark06, by the way. It produces lower scores than 05.

Edit: nm, see you were running 06 too. I'd be interested to know what your forceware gfx settings are.

 

[Goi]

Hmm, my system produces a 3DMark06 score in the 2900s too, and yeah it's AGP. Did you install the nvidia nforce platform/GART drivers? I found out after a long time that I didn't(I thought I had) and just installing that gave me a significant performance boost across the board.

 

[jamesbond007]

Originally posted by: Markbnj
Yeah, I don't know. Yours is AGP? Maybe the card just sucks. 2700 or so is the best I have gotten out of it so far. This is 3dMark06, by the way. It produces lower scores than 05.

Edit: nm, see you were running 06 too. I'd be interested to know what your forceware gfx settings are.

Hm, they're default, as far as I can tell. I've never changed anything in there under performance options.

 

[Markbnj]

I have, so maybe that is the problem. I messed around with it and optimized it back before I o/c'd. Anyway, the good news is that it was stable at 420/1100 through two hours of Oblivion play tonight.

Guess my next step is to use 3Dmark to check my driver settings. Maybe I can improve my score.

Here are my current settings, in case anyone wants to weigh in on them. They are an attempt to optimize for Oblivion on a 60hz. LCD.

Antialiasing: application controlled
Anisotropic filtering: application controlled
Image settings: high performance
Vertical synch: on
Force mipmaps: none
Conformant texture clamp: on
Extension limit: off
Trilinear optimization: on
Anisotropic mip filter optimization: on
Anisotropic sample optimization: on
Triple buffering: off
Negative LOD bias: clamp

Last night my high 3DMark06 was 2701.

 

[CKXP]

Originally posted by: Markbnj
I have, so maybe that is the problem. I messed around with it and optimized it back before I o/c'd. Anyway, the good news is that it was stable at 420/1100 through two hours of Oblivion play tonight.

Guess my next step is to use 3Dmark to check my driver settings. Maybe I can improve my score.

Here are my current settings, in case anyone wants to weigh in on them. They are an attempt to optimize for Oblivion on a 60hz. LCD.

Antialiasing: application controlled
Anisotropic filtering: application controlled
Image settings: high performance
Vertical synch: on
Force mipmaps: none
Conformant texture clamp: on
Extension limit: off
Trilinear optimization: on
Anisotropic mip filter optimization: on
Anisotropic sample optimization: on
Triple buffering: off
Negative LOD bias: clamp

Last night my high 3DMark06 was 2701.

turn Vsync OFF, that should raise your score a bit

 

[jamesbond007]

Which drivers are you using? I'm still on the 81.98s.

 

[Markbnj]

I noticed that most of the people with higher scores than mine (in my same rig category) were running 81.98. I'm running the 84.25 beta. That could be part of the problem too.

Re: the vsynch suggestion... I'll try that tonight. I only get like 5-10 fps in most of the 3DMark06 tests, so I wonder if it will have much effect.

Edit: You were right about the vsynch CKXP. Disabled it and ran a 2873 3DMark06 score. I will mess around with some of the other settings tonight. So far 420/1100 seems very stable.