Is this graphics card and system good for gaming?

well im going to buy a asus g73jh-a1 with The ATi Mobility Radeon HD 5870 3D Graphic Card with 1024 MB GDDR5 VRAM which supports direct x 11 its has a Intel® Core™ i7-720QM, 1.60-2.80GHz, (45nm, 6MB L3 cache),8,192MB (8GB) DDR3 1066MHz Dual Channel Memory (2GBx4),Windows 7 Home Premium 64-Bit its double barreled wateva tat means, i want to know will i have good fraps and will i max out all games these r the games i wud like to max out fallout 3, m effect,mw2,crysis,dragon age origins,batman arkham asylum and all the games to come in the future thx for anwsering ill pick best answer biiiii