Crysis? um you picked the wrong game to claim 4 core support for. 4 cores really doesnt do crap for Crysis and a slightly faster dual core will beat 4 cores. here you can see that a 2.93 dual core beats a 2.66 quad so even clock for clock a quad core is basically useless in Crysis.
http://www.gamespot.com/features/6182806/p-6.html
also the Q9300 is 2.5ghz not 2.0 and it is hardly a slouch.
Sorry ebuyer had the chip listed as 2 ghz when I checked, I assumed they'd be right.
Anyhow the point remains, Crysis has better multicore support than the source engine, it will dump more work across the cores where as the source engine doesnt really use more than 1 core, I think this is a valid point.