I installed XP-32bit, XP-64bit, and Server 2003 64bit on the same hardware and then ran ATTO on each OS.
The hardware is an Intel D915GEV motherboard, P4 3GHz x64, 1GB Crucial RAM, and a 80GB Seagate 7200.7 SATA hard drive.
On each OS, once ATTO started testing at the 8K level and above the...