I have had the Lenovo Thinkpad T-420 for about 4 months now (Thanks to my friend Gordon) and decided it is time for a little boost. I had a few options and changing the CPU seemed to be the most logical. I already use an Intel 330 series SSD. The ram is @ 8gb (16 might help with 64bit apps) but I doubt I would see a huge improvement. The T-420 is my primary SDR/Radio machine.It is running a dual core Intel i5-2520m. The processor I ordered is a dual core i7-2620m and keeping my fingers crossed should be a direct replacement.