GTX480 vs GTX670

[lambchops511]

My CUDA matrix vector multiplies run faster on the GTX480 than my GTX670 by around 30% ... any suggestions on things to get the GTX670 faster? I am using CUBLAS...

 

[TakeNoPrisoners]

Kepler is known for not being very good at compute. Fermi just beats it hands down, I would suggest overclocking it to try to salvage some performance. I doubt you will be able to get that GTX 670 on par with the GTX 480 in any case.

 

[BD231]

Ill send u my 480 for the 670

 

[lambchops511]

Ill send u my 480 for the 670

I regret purchasing my GTX670... for the price I paid I coulda gotten 2x GTX480...

 

[Jaydip]

Are you using sm 3.0 or 3.5?

 

[lambchops511]

are you using sm 3.0 or 3.5?

cuda 4.2

 

[BD231]

I regret purchasing my GTX670... for the price I paid I coulda gotten 2x GTX480...

Nvidia choped and screwed kepler for better thermals, u didnt hear about that? Probably could have gotten three if u went used. If u do sell and want another 480 lmk ill make up the difference.

 

[Jaydip]

cuda 4.2

I'm not asking that, during compilation are you using shader model 3 or 3.5?

 

[lambchops511]

Nvidia choped and screwed kepler for better thermals, u didnt hear about that? Probably could have gotten three if u went used. If u do sell and want another 480 lmk ill make up the difference.

You have 2x GTX 480s? What brand model?

 

[lambchops511]

I'm not asking that, during compilation are you using shader model 3 or 3.5?

nvccflag: --gpu-architecture compute_20

 

[Jaydip]

OK,have you tried using 30?