260m overclocking on P79

Hi,
while not seeing anomolies the card was exhibiting weird behaviour at 620/1050/1550. I had OCCT and found it was getting alot of errors. I played for about 2 hours and could not get above stock without some errors Then I figured something out.

The 9800m has the shaders set 2.5x the GPU clock. The 260m does not do this, the ratio is offset. So I started playing with that ratio and found 600/975/1475 runs with no errors. With OCCT though I could easilly over time coax 90c, something I am not all to comfortable with. In games with thos settings I was staying inder 80c.

Next thing was, what extra was I really getting? So I tried Dirt2 bone stock. It turns out the 260m is 10% or better than the original overclocked 9800m at 690/890/1725. I never really needed more video card than I had and I though stock would only be as fas not actually faster.

So in the end unless I need it, which for what I do at this time I don't, I will be leaving the video at stock speeds. This is the video card these systems needed from the get go. that 10% or so makes a huge difference overall especially at 1920x1200, and over the stock speeds on the 9800m you easily get 20% or more....................

 

An update, from what I can tell at the moment. I am using nVidia system tools as my oveclock utility. This alows you to set it at boot and then profiles for loading and unloading games etc.

1.) at boot I correctly clock the card at 550/1000/1350. The memory is rated at 1000 MHz.

2.) loading games that need Overclocking I set a profie to 600/1100/1425. In dirt2 this alows 8xAA at better than the 9800m 4xAA frame rates.

3.) unloading games set back to 550/1000/1350.

This does not seem to heat the card any more that usual and absolutely no artifacts or issues. The GPU fans rarely ever goes on full blast just the lower level when gaming............