I'm looking to upgrade my laptop with the configuration core i5-3210, 4gb ddr3 ram, and 500 gb hdd. Now since this is an old laptop, I don't want to spend too much so I'm probably going to upgrade it with either Kingston A400 or the Crucial MX 500. Provided that the laptop does have SATA 3, which one would you recommend? Is it worth considering the 250 GB Crucial MX 500 over the 240 GB Kingston A400 for a faster boot and everyday use? Can you predict what write speeds I'll be getting?