Question about video card?

my video card is an ATI radeon X1550.

and I wonder if an ATI X1550 is similar to a Geforce 8800.
because a game called Crysis calls these requirements a GeForce 8800 but I dont know, if an ATI X1550 can handle that game.

plss help me xD

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But ill Say No ! u can play but with 5 fps or lower and that is not Playing its HORRORIBLE !

ty xD