Worth It to Get a 650 Ti Boost?

Is it really worth the extra $50 to get a Gigabyte 650 Ti Boost? It has a 198-bit interface with a 2GB Framebuffer, better than the 650 Ti I was going to get. Will this bottleneck my '09 Athlon 630? Thanks for any responses.

 

EDIT: Oh, and I'll be mainly playing Nvidia optimized games such as Borderlands 1 and 2.

http://www.youtube.com/watch?v=47EZmPS9LhA

$150 (after rebate) Free FC 3 Blood Dragon, Bioshock & Tomb Raider

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202004&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=