[chikorita157]

Yes, the Phoenom II is playing a bit of a catchup with Core i7, but if you really want to go with AMD, the Quadcore model will be better opposed to the 3 core model... but the Core i7 is still going to be marginly faster than the Phoenom II since it's more efficient but you may need to overclock the Phoenom II inorder to get enough performance to get a decent amount of fps at high settings which isn't worth it since the OP does not want to overclock.

Also, Intel have more efficient mobile CPUs, which always going to blast away the Turion X2, no matter what.