I cannot find that card, but this one is pretty much the same speed. Slightly faster on the core and sligthtly slower on the memory to even it out for ya. lol
Asus: Core (670mhz) / Memory (2.13ghz)
BFG: Core (680mhz) / Memory (2.10ghz), the shader clock on this will be marginally higher as well.
The overall performance of the cards will be the exact same imo, just thought I would give you the numerical comparison. http://www.newegg.com/Product/Product.aspx?Item=N82E16814143138