When it comes to ATI video cards, the 2nd number of the model number is the most important as it represents the 'powerfulness' of the card.
For example, you would think a 4350 would be faster than a 3850? Nope, 2nd digit is an 8, so the 3850 will whip the doors off the 4350 card.
There's a couple exceptions, but pretty much the 2nd digit is the factor for ATI cards.
Win8 64-bit Pro Retail
Intel i7-4770
16GB DDR3 1600 8-8-8-24
MSI Z87-G45 Motherboard
ASUS GTX 660 Direct CU II OC 2GB GPU
1 TB RAID 1 (mirrored) Drive Array
Several scratch drives for video, TMP, pagefile.