System: ASUS P8P67 Deluxe, Intel Core i7 2600K, 8 GB Patriot DDR3 RAM, GeForce GTX570 video. OS: Win7 x64 Ultimate Edition. Bus clock 103, CPU multiplier 47, total clock = 4.8 GHz. Air cooled with a Corsair A70.

MAME 0.141 64-bit mamedev.org official binary, -bench 90 used for all games to match John IV’s latest Wolfdale run. All games had no nvram except scud and gradius4, which don’t show gameplay until configured. All numbers are % speed where 100 is full framerate.

blitz: 258
dolphin: 38
gauntleg: 370
gradius4: 236
propcycl: 259
radikalb: 210
scud: 149
starsldr: 85

And a random trip through other drivers.
pacman: 12282
galaga: 6439
dkong: 4731
mappy: 7153
outrun: 871
gforce2: 785
sf2: 2513
mvsc: 2355
radr: 480
kinst: 777
crusnusa: 602
tekken2: 421
tekken3: 239
kof98: 1479