I'd suggest an Acer Aspire V3 572G. It costs a couple dollars under $600 from Newegg (including shipping).
Has a native resolution of 1366x768, an Intel Core I5 4510U (1.7GHz turbo boost up to 2.7GHz) dual core with hyper threading, GeForce 840M (2GB) dedicated GPU, 1TB HDD, 8GB RAM, and is...