I've read the R9 290 has better single precision performance than the R9 280x/7970 but it's double precision performance is far worse. Are the SETI tasks more favorable for cards with DPP or SPP? Also I noticed a few inconclusive and invalids for my workunits. Is this the norm or should I fall back to an older driver outside of the latest omega ones?

Thanks for any help

SETI only requires Single precision, although there are other BOINC projects - notably MilkyWay@Home - which require Double precision.

I didn't see any errors or invalids occur with Cat 14.12, but I did find that releases after 14.4 have increased CPU time. So I am going to be sticking with that for a while.

---

SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[

Hawaii's double-precision performance is crippled to 1/8 of single-precision while Tahiti is only crippled to 1/4. So for double-precision calculations, Tahiti should do better than Hawaii.

Both are still far better than NV GPUs in the double-precision space, which are crippled to 1/32 of single-precision performance.

But yes, as others have already mentioned, S@h only requires single-precision so there's no need to be concerned about that here.

---

Soli Deo Gloria