Overclocking a leadtek 6800gt

[imported_g33k]

Using Winfox, the overclocking tool provided by leadtek, I see this:

2D Turbo 351MHz/1002MHz

3D Turbo 350MHz/1000Mhz

There are four slider all together. Two sliders (one for core, one for memory) for 2D and two sliders for 3D. When I OC 2D and 3D sliders to Ultra (400/1100) performance decreases. When I OC them seperately, 2D first, it performed worse than stock. I then set 2D back to stock and OC 3D it also performed worse than stock! Is this OC tool basically worthless? Should I just use coolbits and OC? Has anyone gotten good results using Winfox to OC their leadtek 6800gt?

BTW I used 3dmark03 as a benchmark for all my OC settings.

 

[n7]

I'd just forget about that Winfox & use Coolbits.

 

[imported_g33k]

Yeah figured as much. I'm hesitant about using a registry hack though. I really have had some bad experiences when I fiddle with my registry. ATM I'm making a backup image of my hdd using Norton Ghost so, I can use coolbits and blow up my pc and still be ok tommorow. Still, it would be real easy if Winfox worked. No one has gotten any good results with Winfox?

 

[n7]

I honestly never tried Winfox with my 6800 GT.

I figured that if it came from the manufacturer, it couldn't be any good...

Coolbits worked like a charm though

 

[otispunkmeyer]

yeah another vote for coolbits, i have the leadtek 6800gt too, didnt even give winfox a lookin i jus shot it in a draw and forgot about it. coolbits isnt really a hack as such, its not like it creates new features to use, them features have always been there in the drivers at all times, coolbits just enables them for u

 

[Rhoel]

Coolbits is perfect, why not use it? It's easy to use and it works.

 

[imported_g33k]

I just installed coolbits. Coolbits is giving me the same, performance results as Winfox. Coolbits also has a total of 4 sliders for your overclocking adjustments. Now, I come from ATI land and with the the ATI tools I used it was only two sliders (core and memory).

How do you use coolbits for the best performance in 3d games? Everytime I adjust these sliders my 3dmark03 scores get worse.

EDIT:

@stock 350/1000: 3dmark03 score 11100

OC 400/1100 (Performance 3d sliders) : 3dmark03 score 9500

What am I doing wrong?

 

[imported_g33k]

Interesting results from DOOM3 timedemo. Settings are as follows: 12x10 res, High Quality, Vsync on, AA x2, all other quality settings enabled.

@ stock 39.8 avg fps
@ ultra 44.1 avg fps

Doom3 showed an improvement, yet 3dmark03 showed a decrease in performance. Im using driver version 7.1.8.4.

Edit Update:

Using Painkiller's built in benchmark, scores from stock to ultra decreased! Im getting confused. This must have something to do with 2d and 3d sliders? Should both sliders be at ultra settings in order to have a good oc in all applications?

 

[imported_g33k]

Why are there seperate sliders for 2d and 3d?

 

[imported_g33k]

Update:

No matter which sliders I move, if I move the core frequency anymore than 30mhz from stock, performance decreases. I've never OC nvidia cards before, with ATI cards, you would get artifacting telling you, you've reached your limit. Here I see no artifacting, just decreasing performance across 3dmark03, 3dmark05 and Aquamark3. Using Painkiller's built-in benchmark, I saw either a SLIGHT performance decrease or the same performance with increasingly higher frequency. Doom 3's timedemo was the ONLY benchmark I used that showed an increase in performance up to 390/1100, after this, performance started to deteriorate.

It looks like this Leadtek 6800gt is an overclocking dud. Strange how I see no artifacting but instead, decreases in performance when overclocking. I guess it is the nature of the beast with these NVIDIA cards.

 

[Sexy D]

same with me, when i overclock my 6800 ultra too much, my scores get worse. but if i back down a little they are ok. crazy eh !

 

[imported_g33k]

Crazy indeed! Also very time consuming and a little frustrating. The benchmarks were not all the same either. 3dmark was the least forgiving. I couldn't go over 10mhz over stock before I saw decreasing performance. With Aquamark I could go up about 30mhz over stock. I could overclock video memory a bit more. VRAM went as high as 1050mhz. After that it didn't make a difference if I went any higher. Overall, very dissapointing for a card that is supposed to be a great overclocker.

 

[gwag]

pretty sure nvidia cards declock themselves when they get to hot, a form of thermal protection. I think I read the 59xx series had it so the newer ones likely do also.
try running riva tuner thing that shows the graph of the cpu core and temerature leave it running and run aqua mark or some thing and see if the core lowers itself?

 

[Keysplayr]

Originally posted by: g33k
Using Winfox, the overclocking tool provided by leadtek, I see this:

2D Turbo 351MHz/1002MHz

3D Turbo 350MHz/1000Mhz

There are four slider all together. Two sliders (one for core, one for memory) for 2D and two sliders for 3D. When I OC 2D and 3D sliders to Ultra (400/1100) performance decreases. When I OC them seperately, 2D first, it performed worse than stock. I then set 2D back to stock and OC 3D it also performed worse than stock! Is this OC tool basically worthless? Should I just use coolbits and OC? Has anyone gotten good results using Winfox to OC their leadtek 6800gt?

BTW I used 3dmark03 as a benchmark for all my OC settings.

Any particular reason you would o/c your 2D? MS Word a slideshow for ya?

 

[imported_g33k]

Originally posted by: gwag
pretty sure nvidia cards declock themselves when they get to hot, a form of thermal protection. I think I read the 59xx series had it so the newer ones likely do also.
try running riva tuner thing that shows the graph of the cpu core and temerature leave it running and run aqua mark or some thing and see if the core lowers itself?

I dont think temps have anything to do with it. My temps never reach 80C when I'm running the benchmarks. I believe they start downclocking around 120C. The Leadtek HSF is supposed to be the best in the market. I sure as hell will not be wasting money on an NV Silencer. That will probably not improve my overclock at all!

Originally posted by: keysplayr2003

Any particular reason you would o/c your 2D? MS Word a slideshow for ya?

Heh, I figured out that the 2D slider has no effect in 3D games. Go figure!

 

[cbehnken]

I've seen this too, I believe it's a form of artifacting that you can't see and the engine has to re-calculate certain things. Might not make sense exactly, but lots of mags show the same results when they o/c too far.