The current stuff is intel 4th generation iX cpu like i5 4xxx, ddr3 ram but ddr4 ram is out now too and will likely replace ddr3, nvidia 9xx video chips.Oh whats your current computer hardware ??
I still run my core 2 due, and i will resurrect my core 2 quad. They run just fine, their instruction sets still what everyone is using. For example there is a game I play that Requires SSE2 instruction set, so my P3 can not run that game. So the cutoff for me is P4 or later cpu. Core 2 cpu are the best of that lot, maybe I am a snob, but I don't bother with anything P4, PD, Pentium Dual Core.