GTX280/260 Overclocking Results

[sillyeagle]

Wow. That's a great OC on your memory. Btw, do you link the core and shader clocks? Just curious because you say your shader clock limits your core. I personally do not link them. I do link them initially, but once I reach my max shader I then unlink and push the core up a bit. I have to watch my temps though when I do that. My card runs a little hotter than yours, so temps is a great concern of mine.

Kapt

No I don't link. If they were linked my core would be even lower, but since the core is based off a multiplier it can still be limited by the shader.

For example with my shader at 1420, unlinked, my core won't go higher than 710. If I boost my shader to 1425, I am then able to run the core at 715. I can certainly set it higher, but the settings do not stick unless I up the shader.

Memory is quite sensitive, which is why I run it 25MHz(effective 50MHz) below my artifacting point. 2500MHz is 140GB/s.

As to the temp I think anything below 80 is safe for 24/7 use and won't shorten the life of the card.

[kaptkarl]

Speaking of temps, I ran Furmark and when my temp reached 80 degrees the screen went blank. I had to cold boot my machine to get it to come back on. I guess the card got too hot, but at only 80 degrees? Anyway, I backed off the OC and everything is ok.

Btw, it was OC'd at 705\1525\1155 when it shut down. My card doesn't seem to like the shader above 1500, so I keep it around 1485.

Kapt

[LovingSticky]

Just got my MSI GTX 280 SuperOC (stock overclocked at 700/1150/1400). Running Furmark w/ MSAA 8x stability test, core temperature went up to 87C (100% fan speed), is that ok? First Furmark w/ MSAA 4x run was different though, fan speed was 56% and card was at 79C, strange.

Running Spore @ 2560x1600 keeps the graphics core around 78C, and fan is very quiet.

Idle temp in Vista is around 62C.

http://img234.imageshack.us/img234/8683/techpowerupgpuz1ao4.png http://img234.imageshack.us/img234/3859/techpowerupgpuz2cd2.png

[john19055]

I use FurMark to test my clock ,it useally the first place I see artifacts even if 3DMark06 will run it just fine.I did'nt see much of a increase in 3DMark06 running two GTX280's in SLI but in 3DMark Vantage ,I went from 14,597 to 21,027.

[sertz]

Just got my BFG GTX260 OC (192 version), was at stock speeds 590/999/1296, i overclocked to 650/1210/1400 but it was getting close to 85-90 degrees so i backed down to 642/1202/1400 and the MAX i have seen it go is 81 degrees when running Furmark at 1600x1200 with 16xAA and Extreme Burning Mode enabled. A bit overkill to be sure, but I wanted to ENSURE stability over all else haha. :p

Mind you this is all with no adjustments to the fan speeds, highest usage the fan has seen is 54%. I use Rivatuner so I need to make a few fan speed profiles and surely I could push the card farther, but honestly there is no need. I'm happy with my current overclock.

Current system:

EVGA 750i SLi mobo
Core 2 Duo E7200 (stock 2.53GHz, OC to 3.1GHz on stock cooling. Vendetta coming soon!:))
Single BFG GTX 260 (192) (OC to 642 core/1202 memory/1400 shaders)
2GB OCZ Gold DDR2-800 RAM
3DMark 06 score of 13,903 (limited by my CPU big time, but its a budget system so what the hell!:p)

[Blacklash]

Here's the FC2 bench on a single GTX @ 730|2500 like Anand and HardwareCanucks did, or that is I ran ranch small DX10 Ultra settings 1920x. I got 55.31-

http://img529.imageshack.us/img529/4435/fc2ultradx101920xfq9.jpg (http://imageshack.us)

For amusement DX10 High 1440x

http://img372.imageshack.us/img372/3055/fc2dx10high1440xyn9.jpg (http://imageshack.us)

Still waiting on my flexible SLi bridge to come so I can test GTX 260 SLi @ 730 on the core.

[offishall]

First off, Mods, creators, thank you for this site, it helped me decide my purchase before I made the plunge. I registered to say thank you and share my results. And thanks to the community for posting your results as well, it guided me in the right direction :)

Here are my results on the 260. Pretty damn impressed with this card, especially in my system. I posted my card and the specs for the 280 as well. Sorry for the large size guys. I am a 360/PS3 gamer who has recently been brought back into the PC gaming world after 5 years of ignorance :)

http://farm4.static.flickr.com/3319/3262608313_a3b5ee3b8a_o.jpg

Intel(R) Core(TM)2 Duo CPU E7300 @ 2.66GHz
NVIDIA GeForce GTX 260
Dell 2407WFP (Digital)
Total Physical Memory 3.25 GB
Free Physical Memory 2.19 GB
Windows Vista (TM) Ultimate SP1 (32 bit)