Specs are included below. As it stands now I am having a rough time running the game, mainly due to the processor. I am considering buying or having built a new rig in the spring with my tax refund check. But for the meantime I am considering upgrading my processor. Question is: without replacing the motherboard as well, what is the best processor I can buy that is compatible? And do you guys think it would be worth it? Ideally I am hoping there is a processor out there that will work with my motherboard that will push into the 2.5 GHz range. Any advice, tips, knowledge would be awesome! My specs. Motherboard: MCP61PM-HM (Nettle3) Manufacturer: ECS Form factor: microATX - 24.4 cm (9.6 inches) x 24.4 cm (9.6 inches) Chipset: NVIDIA GeForce 6150SE nForce 430 Memory sockets: 4 x DDR2 Front side bus speeds: 2000MT/s (2.0 GT/s) Processor socket: AM2+ Expansion Slots: 1 PCI Express x16 slot for graphics card 2 PCI Express x1 slots 1 PCI slot Processsor: Phenom x4 9150e Operating speed: Up to 1.8 GHz Number of cores: 4 Socket: AM2+ Bus speed: 3200 MHz HT3 (clocked down to 2000 MHz) Memory: 4 GB Video Graphics: Nvidea GeForce 450 GTS (1 GB) Hard drive: 500 GB Size: 500 GB Interface: SATA Rotational Speed: 7200 RPM