replacing my (x300se 30w) Ati Radeon has many good cards but there is no uniformed info i can find to compare power usige, bad ATI bad. i have a 75 wat limit is the best "guess" i like the 4850,4830.450w recomended, 4760 a step down is 400w recomended. the 4350 uses 25 watts but dropes off in performance