So I'm running on the stock 7200 rpm 500gb HD from apple (Hitachi HTS725050A9A362) and I googled XBench results for one of my target drives in hopes of comparing speed loss. I was under the impression that because the drive I'm looking at has an 8mb cache and runs at 5400 rpm, that it would be slower than my current drive. Looking at the results however showed that the samsung got better results. Am I missing something? I'm not great with computers, and am not sure I'm interpreting these results correctly. Samgsung results : http://i609.photobucket.com/albums/tt179/Vantage72/368449.png My current hard drives results:http://imageshack.us/photo/my-images/838/screenshot20111012at600.png/ Thanks edit: I was actually looking at buying the scorpio blue 1tb (9.5mm, in case I ever want to put an ssd in and throw this in the optibay) but couldn't find any xbench results, and figured the samsung would give comparable results.