OK. I've now got a card with an Nvidia GeFoce 8400 engine and 512 MB of vDram. I have the latest
supposedly CUDA-enabled version 6.4.7 of BOINC. The start-up log says "CUDA devices found". How do I
determine if it's actually using this capability? So far it's processing Astropulse at the rate of
about 0.1% per 10 minutes. That sounds like about 166.66 hours to completion, versus an estimate of
194 hours, which is about what it used to take. Is this roughly 16% improvement the best I can hope
for? That would be about 7 days. By the way, for what it's woth, it rates my 2 CPUs at 2594 floating
point MIPS and 4146 integer MIPS each. 

Thanks
Dave