New video card - slower renderings

[stevirtvr]

My 8600 GTS finally diead and I was excited to replace it. Bought a GTS 250 and everything is much better with it. I can fly around scenes with lots of trees that used to get bogged down. The only problem I have is that my render times went way up. The light cache and IR map seem to calculate much faster. But the actual final render takes about 4 times as long as it used to! Tested an old model where I used the default max scanline renderer and it seemed faster than before. So why is VRAY rendering so much slower now? Is there some setting I need to change somewhere to compensate for something?

Thanks in advance for any ideas.

[Codi]

Currently VRay does not use the graphic card for doing it's rendering calculations, the slowdown must have another reason.

Jujubee recently warned about a driver issue with nvidia cards, maybe you could check that:
http://www.chaosgroup.com/forums/vbu...ivers-perf-hit