Quote: Originally Posted by eldinv
the HP computer has an ATI Radeon 4350 dedicated graphics, wouldn't the Sapphire Radeon X1950 be a downgrade?
Not by a long shot. The 1950 Pro might be a couple of generations old, but still faster than the bottom of the pile 4350. The only thing the 4350 really has over the 1950 is DirectX 10.1 vs DirectX 9.0c,
Video Card Comparison - GPUReview.com
And to answer the OP's question not only is that 220W power supply way under powered for the 1950 as mentioned by mickey, it won't fit in the slimline case.