Intel Celeron
All I read and immediate answer was "NOPE."
A Celeron is one of the weakest forms of Intel processors. They're just all around awful for gaming. They're only used for basic computer needs such as photos, web surfing and such.
To play GTA4 at the minimum you'll want a dual-core, at least an Athlon x2 or Core 2 Duo.
To play GTA4 at anything near high you'll want a quad-core, at least an x4 amd whatever or Core 2 Quad.
I run it on highest with a Core i7 and a single GTX460. More video RAM helps a lot for GTA4 because the game actually calculates how much video RAM you have onboard and will give you warnings if you exceed your video RAM limit with the settings you choose. 512MB to run it on mediumish, 768MB for high, 1GB for highest.