HD6670 1GB DDR5 128bit vs HD6670 2GB DDR3 128bit

nubieo

Honorable
Oct 13, 2013
3
0
10,510
hi guys ...
I planning to buy VGA card and which one is better :
HD6670 1GB DDR5 128bit vs HD6670 2GB DDR3 128bit

and this is my PC specs:

AMD Athlon II X2 270 3.4GHz
4GB 1333MHz Desktop Ram
mobo: Asus M5A78L-M LX V2 AM3 MB
PSU: 450 watt