ati r7 250 1gb ddr or 2gb ddr3

akash pillai

Honorable
Jun 23, 2012
9
0
10,510
My configuration.
Windows 8.1 64bit
Intel i7 2600
Asus h61 M.B
4Gb ram 1333mhz
320Gb samsung hdd
PSU : 450w
+12v=25A,-12V=0.3A,+5v=20A,+3.3v=18A,-5v=nill,+5vSB=3A

I want to buy r7 250 1gb ddr5 or 2gb ddr3
...please tell which one to buy and can my psu is enough to run this card.