Performance drops down with 177.84 driver Old 174.55 driver has better performance

Thanks, good to know.

I’ve just checked my bandwidth with 177.92 and it seems alright (it’s even slightly higher for pageable memory than with 175.19). I’m maxing out the PCIe, no issues.

Device-to-device is down a bit (48GB/s vs 50-51GB/s).

My card is a 8800GTS 512MB

I have also checked bandwidth (using standard sample), and it is same for 174.55 and 177.35. So, the poor performance of my app is caused by some other reasons. I’m going to do a thorough timing measurement, but at the moment just dont have enough free time.