Question for 260GTX owners... How far can you OC?

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Ragenrok

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Ok well I didn't see a 260/280 overclocking comparision thread so I thoguh I'd ask

whats the overclocks you guys have been getting?

I fiddled this morning and I got my EVGA 260GTX to a 660core & 1200mem and scaned for about 10 minutes artifact free before I had to leave for work.

I upped the fan to 50% and Im happy with it, anything over 50% is just way to loud. Cant wait till swiftech releases a mcw60-r adapter plate for these lol.
 
My $269 vanilla eVGA GTX260 does 725/1450/1250. Rock solid. Screamin'.
 
my highest stable so far is 700/1460/1300(2600); autofan keeps it at 40% and it tops out at 71C in crysis or, with direct control, set to 70% drops it to peak at 58C.
 
I got a vanilla EVGA 260 GTX (576/999) and overclocked it to "FTW" speeds no problem. I got them to 700/1200 with fan speed at auto and it ran great; but I took it back down to "FTW" speeds (666/1104) to keep it safe.
 
I got mine stable with Furmark, ATI Tool, and no artifacts at 770/1570/1170 with the fan set at 60% but I only kept it there for benchmarking, I pretty much leave it at stock, then bump it to FTW speeds for gaming.
 
I just ordered my EVGA GTX 260 vanilla last night. I can't wait to see what this friggin huge card can do(I thought my 8800gt was big). Benchmarks are showing the gtx 260 oc'd performing on par with a stock gtx 280!
 
I got an EVGA Superclocked+. Not the greatest clocker. Max 100% stable in EVERYTHING is:

675/1350/1242.

Nice shader speed eh? Anything higher than 1350 seems stable in furmark/games, but throws massive aritifacts in ATItool artifact scanner within seconds. Lowering it one step down to 1350 allows ATItool artifact scanner at the most senstive setting, as well as furmark to go for 8-10h straight at auto fan speed. 1242 is about the max for my memory as well, also allowing 8-10h of straight testing in both furmark/atitool. Anything higher lasts for about an hour before erroring out. To me, absolute stability comes before performance. I most certainly don't have the fastest card on the market but it does quite well in just about all games, and I don't have the worry while playing that I am going to get random crashes either.

I flashed the above clocks straight to my card so no longer have to worry about software doing the clocking for me. The card just works. I am quite happy with the auto fan speed setting too. Works very well, and keeps my card under 86c in the most grueling situations at under 80% fan speed. Most casual games have the card running under 80c.

If only the latest 177.92 drivers allowed my card to downclock however. It runs 3D speeds listed above 24/7 no matter what I do to try and have them lowered.
 
mine go to 725/1450/1200 I haven't pushed them beyond that.. I run my fans @ 70%.. I don't mind the noise too much.. thinking about watercooling these with some ek blocks..
 
geez u guys are lucky, cant get my core past 660 stable lol. I got my memory to 1250 though, once swiftech comes out with their mcw60-r adapetr plate I'll watercool my 260 and see what I can get
 
Ragenrok said:
Ok well I didn't see a 260/280 overclocking comparision thread so I thoguh I'd ask

whats the overclocks you guys have been getting?

I fiddled this morning and I got my EVGA 260GTX to a 660core & 1200mem and scaned for about 10 minutes artifact free before I had to leave for work.

I upped the fan to 50% and Im happy with it, anything over 50% is just way to loud. Cant wait till swiftech releases a mcw60-r adapter plate for these lol.
Click to expand...

703 core air cooled. however, 756 water cooled. 1566 shader and 1242 memory (so far). I went with a D-Tek FuZion GFX 2 with the GT200 bracket for my own.

See the MCW-60 GT200 bracket - http://www.xtremesystems.org/forums/showpost.php?p=3284751&postcount=13


BTW this card rocks -

vantage-756core.jpg
 
For benchmarks mine can go very high, but for 24/7 use I keep it at 700/1450/1250

As for the fan speed, I use Rivatuner to jump the fan speed up in 10-15% increments when the temperature is between various temperatures
 
Aircooled EVGA - 650/1150/1400

Haven't really messed with it much. I just set it to that, and left it.
 
As in my sig, my XFX xXx edition GTX 260 runs @ 700 Core, 1490 shader and 2400 mem 24/7, haven't really pushed it for benching tho.
 
ok one question, what does it mean if im getting a delta in ATI tool? When I test it at anything higher than 660 core I get delta's but no artifacts or errors.
 
deltas are artifacts, or slight problems that ATItool is picking up during rendering. They are not full blown mayhem, but it does show that a problem may occur when running at those speeds. Chances are you would be fine gaming with a few deltas, but issues may creep up over time, heavy loads, heavy heat etc. I always found running with ZERO issues in ATitool was best for a long, crash free gaming session.

You may not even be 100% stable at 660 core. Try and lower the sensitivity from its default to the most sensitive. You will pick up even more problems im afraid then if you left Atitool running from defaults. This slider can be found in the artifact scanning section of the options menu.

Don't be sad about 660 core. Mine can do 675, but my shaders can't do more than 1350 with Atitool screaming for help. My card is no better.
 
ya, Im happy wiht 660 core, Ive put in long gaming sessions wiht it: 2 hours cod4 & 5 hours of WAR I dont think I will ever work it longer than that at a time so im not worried.
 
I noticed some ~really~ minor artifacts once in a while when playing AoC which I thought seemed memory related so I changed the clocks on my cards to 725/1460/1190 (upped the core by 25mhz and backed off the shaders by 6mhz and memory by 15mhz). I haven't see it since and I have even more performance. woot. my cards never load higher than 51c (edit: with ambient <=25c) with fans @ 70%...
 
702 core / 1404 shader

The way the GTX260 works is the clock speeds increase over intervals. The next interval for the core is 713 and the shaders is 1458. Both of those are just barely unstable.
 
I currently have 2 vanilla EVGA cards which will both do 756 core and 1512 shader with 85% fan speed (could probably lower that), although one of them is going to a bud. Since I've finished tinkering it's time to put mine in the WC loop, but I can't seem to find the box for my Fuzion GFX (which has the GT200 adapter plate in it) :(
 
I tried 725core / 1515shader (basically linked with core @ 725) last and I think one of my cards doesn't like that high of a shader clock.. no crashes, but some random visual anomalies every once in a while... taking the shader clock back down to 1460 fixed the issues right away.. I am amazed how cool these cards run.. even when my study is like 26c the cards load around 53c (top) and 51c (bottom).. this is with the fans @ 70%. with some water cooling and a volt mod I bet these cards would be ballistic. lol
 
BFG GTX 260 OC using RivaTuner gets 700/1512/1244 Temp is 74C running FurMark for 30 min. Using nVidia's find optimal puts it at 720/1550/1244, but I have artifacting under furmark.

Stock reference Air Cooling, with custom fan speeds via RivaTuner.
Duty Cycle Min: 40
Duty Cycle Max: 100
Tmin: 50
Trange: 26
Toperating: 60
Tlow: 50
Tmax: 80

 
725/1450/1250 - Temps hit 63c after 45 minutes of Furmark with 55% fan speed, and about 59c during Vantage. I sure got lucky :D
 
I just picked up a 260 gtx(192) last night and played around with it a little bit. I was successful running stock settings of 3dmark06 at 753/1511/1256. I haven't stressed test at these setting but I didnt see any artifacs. Also I haven't tried for higher.

I bumped back down to 702/1501/1201 though.

Unfortunally though this card has to go back to the B&M I bought it at. It's making a horrible electrical whine as soon as any stress is brought to it(3d apps). Even at stock speeds(it makes no difference, sounds the same). Sucks as I seem to have a decent OC'er :(
 
706/1430/1197. Kind of a shitty OC. I'm sure the core can do more but the shaders throw massive artifacts in ATITool when faster than 1430, and you can't have the core much higher than the shaders. The RAM was also stable at 1250 for about a week, but recently I started getting random crashes and downclocking fixed it.
 
My EVGA 260 GTX SC I can get 725 pretty easy without issues.

Plays Crysis WarHammer at Gamer resolution with 30's FPS. I have my 9950 BE at 3.225 which I know that helps too.
 
TyrSog said:
Unfortunally though this card has to go back to the B&M I bought it at. It's making a horrible electrical whine as soon as any stress is brought to it(3d apps). Even at stock speeds(it makes no difference, sounds the same). Sucks as I seem to have a decent OC'er :(
Click to expand...

Mine does that too, but only at certain fan speeds. Thankfully these speeds are not when the card is idle or loaded, only when the fan is spooling up after the card is loaded. You might concider seeing if your noise is fan speed related as well and just adjust your fan speeds so that it does not annoy you
 
EVGA core 216 superclocked

675 / 1350 / 2448(1224)

hit a wall after 1350 shader. core is stable at 675 (can't go higher without higher shader) only shader options are 1350 or 1404 - nothing inbetween.

I'm thinking my PSU is limiting my clock, or possibly heat. only did minimal testing at 100% fan, and was able to push the shader more.

core is 82-84 degrees load w/ auto fan speed.


Off-Topic: is 36 amps enough for this card? my PSU has 4x 18amp rails, with 2 going into it. Also have a heavily OC'd 65nm quad, 4 gigs, and 3 hard drives. I think i'm pushing my luck with this 600watt.
 
I'm running 24/7 at 648/1134 (shader linked to core). This is very light but I've seen no need to push it further. I've had it closer to 700/1200, and it was stable, but I didn't really feel too much need to have it very high. I will likely push the memory up a little bit more and then leave it there.

EDIT: This is with a Zotac GTX 260(2) Which has the 216 sp.
 
ASUS 192 Shader version: 730 core / 1460 Shader / 1230 RAM / fan on auto
 
I'd be surprised if you couldn't get 660 on the core. I run 730|2600 1532 with an "old" GTX 260. I've been up to 760|2600 1548 and I can't hold it long on the stock cooler.

@ 660 and up the vanilla GTX 260 is a very good 1920x card with AA. The MSI brand is 200usd with rebate @ newegg right now. Without rebate it's 240usd.
 
jfb9301 said:
BFG GTX 260 OC using RivaTuner gets 700/1512/1244 Temp is 74C running FurMark for 30 min. Using nVidia's find optimal puts it at 720/1550/1244, but I have artifacting under furmark.

Stock reference Air Cooling, with custom fan speeds via RivaTuner.
Duty Cycle Min: 40
Duty Cycle Max: 100
Tmin: 50
Trange: 26
Toperating: 60
Tlow: 50
Tmax: 80

Click to expand...

How the hell do you change that? I really wanna use Rivatuner so I can have my fan go back to quiet mode when im in Vista crank up during gaming.
 
My old GTX260 = GTX260 700/1485/2400

My new GTX260 216 = 670/1485/2500

I got some artifact at 670+ core, I'm sure I can hit 1500+ w/ the shader.


Also the first GTX was a Evga superclock, the 216 GTX260 is a standard core base model.
 
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