Difference between CUDA and CPU mining?

[Infinity1]

I'm also wondering if "proportional" or "pay-per-share" will be better if I'm CPU mining on deepbit?

[deepceleron]

CUDA is the proprietary language for programming nVidia GPU stream processors. The last time I tried a CUDA miner, it was slower than OpenCL (which is the open language that works on both nVidia and ATI GPUs). Neither applies for CPU.

Both should pay about the same, one just pays continuously, and one pays out every few hours when a block is solved. CPU mining, however, is just a waste of your electricity at the current difficulty.