CPU Tests
For the rest of the benchmarks, both 915P-A and PF4 were equipped with DDR-II memory at 533MHz, a Pentium 4 560 and an NVIDIA 6800 GT on PCI Express.Kribibench v1.1

The PF4 is ever so slightly faster in Kribibench, but only enough for a benchmark to monitor.
Realstorm

The PF4 is a quite scary 0.06% faster.
LAME MP3 Encoding

Identical performance from both systems in this CPU-bound test.