Memory testing and HEXUS PiFast
ScienceMark gives the advantage to the combination of Athlon 64 X2 4200+ and 690G chipset - in terms of bandwidth and latency, thanks to the memory being run slightly faster than the Intel duo.
While the expectation is for Core 2 Duo chips to give lower latencies than the Athlon X2s, the Core 2 E4300 obviously takes a hit from its 800MHz front-side bus and DDR2-667.
Despite this, PiFast still favours the Core 2 Duo E4300, completing five seconds faster than on the Athlon X2 4200+.