What graphic card do I choose?

[maniacmaji]

I'm using my dad's older HP Pavilion a6000 for my own use [20" monitor]. Most of what I do will be web surfing but I would like to have medium to high performance on most games. Examples include: Crysis, Fallout 3, MW3, Mass Effect 1-3, SC2.

I'm looking for a cheap budget card, preferably under $100. Right now i'm conflicted between these two:
ZOTAC ZT-40701-10L GeForce GT 440 (Fermi) 512MB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready Video Card: [1]
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814500191

ZOTAC ZT-40707-10L GeForce GT 440 (Fermi) 2GB 128-bit DDR3 PCI Express 2.0 x16 HDCP Ready Video Card: [2]
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814500235

Do i sacrifice the high memory for GDDR5? (Btw i'm clearly a novice so my apologies if you may have to explain like i'm five ) And are these good choices or should I be looking for something entirely different?

Also totally sorry for the undescriptive title

 

[wonder44]

I agree. 512MB will be best although make sure your power supply has enough wattage to power the card.