weight and size aside, Thinkpad W530 is still a good choice: - 4 cores (Ivy Bridge), up to 32Gb (4 SO-DIMM slots) - decent full HD screen - nvidia GPU dr

weight and size aside, Thinkpad W530 is still a good choice: - 4 cores (Ivy Bridge), up to 32Gb (4 SO-DIMM slots) - decent full HD screen - nvidia GPU drives a single 4K monitor @60Hz via miniDP