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MSI GTX 660 Ti PE OC Overclocking

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April 10, 2013 6:54:57 PM

I recently got my MSI GTX 660 Ti Power Edition OC and decided to overclock the memory. I am very new to overclocking graphics cards, so I did what I have read online and started increasing the memory clock by increments of 100 with MSI afterburner. I was able to keep increasing it up to +700 until the Nvidia driver crashed. After this, I rebooted the system and adjusted the setting until they were stable.

Is this the proper way to increase the memory clock? At first I was afraid that I damaged my GPU because my benchmarks were all freezing (even after the reboot). I also didnt expect to get past +650 in afterburner because it where most cards begin to crash. My Furmark results were 2125 in the 1080p Benchmark Preset. Is this bad? I'm really not sure what to make of this because I saw a 650 that had a higher benchmark than me on their website.
April 10, 2013 8:34:19 PM

How can I find out if there is something wrong with my graphics card? Is there a benchmarking program anyone can recommend ?

Best solution

a b K Overclocking
a b } Memory
a c 330 Î Nvidia
April 10, 2013 8:53:48 PM
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You are doing it right. In fact, your memory OC is way better than they got at Guru3d, who got +475.
http://www.guru3d.com/articles_pages/msi_geforce_gtx_66...

TechPowerUp only got +300. Their page also lists several overclocks for other GTX 660 Ti's.
http://www.techpowerup.com/reviews/MSI/GTX_660_Ti_Power...

All cards have different amounts of overclocking headroom, so it can be hard to compare, even of the same model. Then there is the fact that the memory reading actually needs to be doubled to get the real frequency, which can be a little confusing (since you are getting twice the overclock of the review sites, I wonder if that is happening here).

Furmark isn't the best any more for stress testing. A couple years ago, Nvidia made it so their cards throttle down when Furmark was being run. You do have Kombustor, which installs with MSI Afterburner, and is similar to Furmark. Try that for stress testing. The best benchmark is to use 3DMark or Unigine and compare scores that way. Definitely don't compare GTX 650 and GTX 660 Ti overclocks.
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April 11, 2013 1:10:22 PM

17seconds said:
You are doing it right. In fact, your memory OC is way better than they got at Guru3d, who got +475.
http://www.guru3d.com/articles_pages/msi_geforce_gtx_66...

TechPowerUp only got +300. Their page also lists several overclocks for other GTX 660 Ti's.
http://www.techpowerup.com/reviews/MSI/GTX_660_Ti_Power...

All cards have different amounts of overclocking headroom, so it can be hard to compare, even of the same model. Then there is the fact that the memory reading actually needs to be doubled to get the real frequency, which can be a little confusing (since you are getting twice the overclock of the review sites, I wonder if that is happening here).

Furmark isn't the best any more for stress testing. A couple years ago, Nvidia made it so their cards throttle down when Furmark was being run. You do have Kombustor, which installs with MSI Afterburner, and is similar to Furmark. Try that for stress testing. The best benchmark is to use 3DMark or Unigine and compare scores that way. Definitely don't compare GTX 650 and GTX 660 Ti overclocks.


Thank you! I purchased 3DMark 11 and got a score of X3196 on the Extreme preset (http://www.3dmark.com/3dm11/6380625). Is this okay? I don't believe I have reached my max overclock yet so I'm going to keep trying!
July 3, 2013 4:17:43 PM

Could the opposite occur here? My system runs stable as anything with one of these GPUs and crashes when I try and benchmark with the second installed in SLI. Yes, the jumper is installed as is all the control panel settings and current drivers. Could the answer be in "Under clocking" the cards???

Thinking and looking for guidance.
!