Considering Half-Life II.. the 9600 Pro even runs circles around the 5900U 256MB when comes to the DX9 render-path..
so I would say.. the 9600Pro no doubt.
(this comes from a nvidiot who is waiting to get his 9800Pro).
Rig 'Titan': Intel Core Duo 6600 | Zalman 9500CU-LED | 2GB DDR-2 667 | P5N-SLI | BFG 8800 GTX | 24" Dell FPW2407 | zalman ZM600-HP modular PSU | 1050GB TOTAL HDD | Photosmart 7760 | Microsoft Cordless Laser Desktop 5000 | Logitech Z2300 2.1 | MX700 Backup Mouse | Antec Performance One P180B (Black) | Vista Business 32-bits
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