feo
Honorary Master
Well, the 500Gb version has 32MB cache whereas the smaller brother only has 16MB. In the real world you probably won't notice the difference though (I'm not sure what aspects the cache size would affect).Indeed. That seems to be the case. Wonder if there is any performance gain at all to be had from getting the 500 over the 320 if you are planning to use it a) for a RAID partition or b) as a single drive with only an OS on...
Both drives have rave reviews from owners so you should be happy with either one.