sorry for the bump, but I got specs for my dad's PC in america (attached)
i might be able to go back in 1 month or 10 months, it depends on factors I don't wish to explain...
this looks ok to run it, no?
I cannot find much about the card (It's a popular card in laptops not PC) but it seems to be able to play Crysis. I rekon medium settings would be possible. But your CPU is way too slow. Yes Crysis and MWLL is NOT CPU intence, but that doesn't mean the slowest CPU possible is able to run the game!
Will you run the sandbox? Yes. Will it run very well? Can't say, probably not. Will it be good enough for you to mess around, even with all settings down to low? Very likly.
Will you be able to play MWLL online? Only in very small games of say 4-6 people. Any higher and your FPS will just drop like a very heavy elephant trying to parachute.
Upgrading the GC will make the game slightly more playable, and make the sandbox more enjoyable, but without a faster CPU, by overlocking or replacing it, you may get some stutters.
All in all, it's looking good that you will actually be able to play the game ^^ And the sandbox, even if it's in small games ^^