Activision has published the minimum system requirements for the PC version of Prototype . Here is what you need for the game;
Operating System: Windows® XP (with Service Pack 2) and DirectX® 9.0c or (Windows Vista® with Service Pack 3)Video Card: 256 MB 3D hardware accelerator card required - 100% DirectX® 9.0c with Shader Model 3 support*Processor: Pentium(R) Intel Core® 2 Duo 2.6 GHz or AMD Athlon 64 X2 3800+ or betterRAM: 1 GB of RAM for Windows ® XP / 2 GB Windows ® Vista systemsHard Drive Space: 8 GB of uncompressed hard dis 228c k space (Plus 500MB for swap file.)Sound Card: DirectX 9.0 compliant sound cardPeripheral: 100% Windows(R) XP/Vista - compatible mouse, keyboard and drivers, 100% Windows(R) XP/Vista - compatible 4X DVD-ROM drive or better (600K/sec sustained transfer rate) and drivers *Supported Chipsets for Windows(R) XP and Vista
All NVIDIA® GeForce 7800 256 MB and better chipsets
All ATI® Radeon X1800 256 MB and better chipsets
No recommended system was specified so that's all. Not sure if your system meets the requirements? The YouGamers Game-o-Meter can help - you can use it to compare your system to the Prototype requirements here
Thanks to FM/YG Community member 'get_loud' for pointing out the Activision forum post detailing the specs.