The socket 775 motherboard in an Intel915gav. In that pc i have 2 250gb s-ata drives, 2 gb memory, x700 video card. The 478 is an Asus P4P800-E with 1 160gb s-ata drive, and a 120gb ide drive, 1 gb of memory and an ATI 9800 pro. Like I said, the cpu's are comparable in speed and cache. I plan on selling the other and adding to the one I keep. I use mostly adobe products but am also using 3ds and flash. Budget isn't a problem. Patience with the industry is. For a few years i played the game with the Jones's and got real tired of forking out money for what essentially meant top of the line for this month, so I will be keeping what I have, just not both. Thanks for the replies so far. Edit- Ringfinger- I realize that but I was referring to what the motherboard and cpu for that specific setup offered.