The Intel Celeron 667 was a desktop processor with 1 core, that was never released. It is part of the Celeron lineup, using the Timna architecture with Socket 370S. Celeron 667 has 128 KB of L2 cache and operates at 667 MHz. Intel is making the Celeron 667 on a 180 nm production node, the transistor count is unknown. The multiplier is locked on Celeron 667, which limits its overclocking potential.
With a TDP of 30 W, the Celeron 667 consumes only little energy. The highest officially supported memory speed is 400 MT/s, but with overclocking (and the right memory modules) you can go even higher. Actual memory technology support depends on the chosen motherboard, the processor itself supports multiple memory types, but most motherboards have only one kind of slot. For communication with other components in the computer, Celeron 667 uses a PCI-Express N/A connection. This processor features the Intel i752 integrated graphics solution.
Many games will refuse to start on this processor due to the lack of the SSE2/SSE3/SSE4 instruction set.