6570 DDR5 or 6670 DDR3?

[axew]

Hello, i m looking to purchase a GPU for some moderate gaming on 1024x768 resolution. I can get the HD 6570 DDR5 or HD 6670 DDR3 for about the same amount of money.
I would like to know which of the above mentioned cards will give better performance at 1024x768 resolution for games such as Skyrim, Witcher 2, Oblivion, Shogun 2 and StarCraft II. My other specs would be an Athlon II x4 631 and 2x2gb of ddr3 1600MHz RAM.

 

[hbriggs]

the 6670 will give better performance but will struggle with high settings.

 

[blazorthon]

The 6670 DDR3 is faster than the 6570 GDDR5 (GDDR5, not DDR5, there's no such thing as DDR5 yet).

 

[jsrudd]

They'll probably be about the same, but at your resolution I wouldn't worry about the vRAM. Get the 6670.