Its strange , im on a celeron 433MHz 128MB SDRAM and the Game is a little slow but its run OK but disabling the sound for 100% speed
ddr Ram is not the best, RIMM yes!! look on a system like that:
P4 2400MHz
256 MB RDRAM 800MHz
Geforce 3 TI200 64MB
Soundblaster Live!
thats my friend PC.
ALL ROMS RUNS CORRECTLY!!!! exept Vigilant 8 / end offense
RDRAM is better ( up to 2G at 1066MHZ)