Tom's Hardware > Forum > Graphic & Displays > Nvidia > What's the safe OC for GTX 260 core 216?

What's the safe OC for GTX 260 core 216?

Forum Graphic & Displays : Nvidia - What's the safe OC for GTX 260 core 216?

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mine is already pre-overclocked at 620 mhz, i forget the other two, but they are pre-overclocked too.

What's the safe OC limit? in other words, i don't want to fry it, yet i want a bit more performance.

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My XFX black edition is OC'd to 666MHz (core) and 1150MHz (mem)... you can tweak it even further but it is an iterative process, and you need to test your own system stability to make sure it's "safe".

I have read of people overclocking them to ~700MHz, but you definitely need to keep an eye on fan speed/temp.

------------------------------ i7 920 (2.67GHz) | ASUS P6T Deluxe | 6GB Corsair XMS3 @ 1333MHZ
XFX GTX260 Black Edition 216-core 896MB RAM x2 in SLI
WD VelociRaptor 300GB 10krpm | Corsair 750TX PSU

 

Reply to Maverick_i7

It's something you'll need to test.
Download Rivatuner or EVGA's Precision overclocking tool along with ATI Tool and Furmark for testing.
Increase the fan speed and watch your temps.
I run my vanilla card with the shaders linked at 686/1103 ( 80% fan speed ) for gaming, and 713/1151 for benchmarking, others have gotten higher stable clocks.

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 & 2x1 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

does it depend on what parts you have for your rig?

Reply to ChronoBodi

ok, what about the shader clock? do you link them both or do you adjust both seperately?

What specs would you recommend for me? i know the fan speed, but not the clock and mem numbers, so...

Reply to ChronoBodi

700Mhz on the core and 1230Mhz on the RAM fairly easily with my XFX GTX260 Black Edition.

I sometimes put it up to 720/1250 without problems.

Reply to djcoolmasterx

what about shader clock? is it linked or did you put it separately? Fan speed? any voltage change required?

 

I need to be dead sure, especially from a seasoned pro like djcoolmasterx.


Message edited by ChronoBodi on 03-30-2009 at 10:25:38 AM
Reply to ChronoBodi

Linked clocks(I could probably get more out of it if I overclock that seperatly but there is no real need), fan at 60%, no vmods. ~40C at idle to 65C under heavy load.

Although with my card as it is factory overclocked to 666Mhz may be higher binned and have a higher voltage in its bios. Also some cards are better overclockers then others so YMMV.

Normal overclocking rules apply, get some stress testing software(3D Mark, Furmark) and work your way up gradually(5-10Mhz at a time).

Reply to djcoolmasterx

ok... can you be more specific?
What's your core clock?
What's your shader clock?
What's your memory clock?

I know my card might have a different tolerance, but still, i need some sort of a baseline or limit in overclocking it.

Reply to ChronoBodi

It varies, start off at stock and work your way up, a slow process but ultimatly worth it.

Go up 20Mhz incriments till you pass 670Mhz, then 10Mhz to 700Mhz then -5Mhz beyond that once it becomes unstable, lower it a notch.

Then start raising the ram in sensible incriments. Its mostly trail and error till you get the right balance.

All GTX260's should be able to do 650Mhz easily so you can start from there if you like.

Reply to djcoolmasterx

^ +1

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 & 2x1 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

Just for a reference my gtx 260 (216) vanilla is at:
Core: 745
Shader: 1510
Memory: 1025
Fan: 89%
Temp: idle 48
Temp: load 77

All gtx 260 if properly overclocked should at least hit 700mhz on the core. I have taken mine up to 777mhz for vantage and some crysis but decided to drop it back down after instability in Empire total war.

Good luck overclocking that monster!

------------------------------ http://www.boostingmoney.com
Reply to Tech-Boy

Tech-Boy wrote :

Just for a reference my gtx 260 (216) vanilla is at:
Core: 745
Shader: 1510
Memory: 1025
Fan: 89%
Temp: idle 48
Temp: load 77

All gtx 260 if properly overclocked should at least hit 700mhz on the core. I have taken mine up to 777mhz for vantage and some crysis but decided to drop it back down after instability in Empire total war.

Good luck overclocking that monster!


i get everything except the memory part: is it better to leave it at 1000 or clock it up to 1200?

Reply to ChronoBodi

DellUser1 wrote :

It's something you'll need to test.
Download Rivatuner or EVGA's Precision overclocking tool along with ATI Tool and Furmark for testing.
Increase the fan speed and watch your temps.
I run my vanilla card with the shaders linked at 686/1103 ( 80% fan speed ) for gaming, and 713/1151 for benchmarking, others have gotten higher stable clocks.



+1, I suggest trying all those softwares, they are excellent for testing and overclocking. Personally when I used to overlock a little, I liked the ATI tool since it has a nice to use interface with a 3d object running as you overlock so you can see if there are any artifacts or glitches right away.

Reply to blackhawk1928

ChronoBodi wrote :

i get everything except the memory part: is it better to leave it at 1000 or clock it up to 1200?



The higher you get the memory the better. But you may be limitted. Some people's cards can hit 1200+ others can bairly get past 1000mhz; The max I can reach with my gtx 260 Maxcore 65mm is 1045mhz, after that I see serious artifact problems.

------------------------------ http://www.boostingmoney.com
Reply to Tech-Boy
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