Even though I've only briefly ever played the multiplayer on Crysis 1, I loved it. Extremely fast and fun, but Jaysus do the Crysis games tax a machines performance.
Crysis 3 will probably need a PC with performance specs requiring liquid nitrogen cooling systems for the CPU and GPU, then playtime will be limited to 15 minutes, with 1 hour cooldowns. LOL. At least you'll save money by not having to run the heat.