Intel Core 2 Quad Q8400S

The Intel Core 2 Quad Q8400S is a quad-core processor based on the 45 nm Yorkfield architecture. It operates at a base clock speed of 2.67 GHz and features 4 MB of L2 cache. The processor has a thermal design power (TDP) of 65 W, making it an energy-efficient model in the Core 2 Quad series. It uses the LGA 775 socket and supports instruction sets including MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit, and Intel Active Management Technology (iAMT2). The Q8400S was launched with a suggested retail price of 245 USD and is compatible with motherboards featuring the LGA 775 socket and supporting the 45 nm Core 2 Quad processors.