Quote Originally Posted by Particle View Post
I don't see why it would. Orthos runs Prime95. It also only spawns up to two threads, so you'd need multiple copies for a quad.

Use the 25.x series of Prime95 builds:
ftp://mersenne.org/gimps/p95v255a.zip

If you really want to stress your CPU, set it up to use small FFTs and match the memory usage to a core's share of the on-chip cache of whatever processor you're testing.
The original point was that prime is only an integer test, and doesn't stress SSE instructions. Orthos can also test using StressCPU, which uses a gromacs core similar to F@H SMP. On my machine, my computer draws 5-10W more using StressCPU over small FFTS.