CPU/Processor > Intel Core 2 Duo E4500 2.20GHz
Video Card > XFX ATI HD 4770 512mb GDDR5
RAM > 2 gb DDR2
Hard Drive > 360 GB
OS > Windows 7 64-Bit
Can these system specs run 2010 games (Assassins Creed II , Splinter Cell:Conviction , BLUR , Alpha Protocol , Grand Theft Auto: Episodes From Liberty City , Just Cause 2 , Metro 2033 , Battlefield bad company 2 ...)
at high-medium setting (Resolution@1440x900) ?
If not , What part of my computer should be upgraded for performance?
Well you could run most of them @ med-high; battlefield @ maybe medium. But most certainly, Metro 2033 will be a slideshow. You'll have to make do with rock bottom settings for that one, that too at a lower resolution.