The Intel Pentium III Xeon 500 1MB was a server/workstation processor with 1 core, launched in March 1999, at an MSRP of $1980. It is part of the Pentium III Xeon lineup, using the Tanner architecture with Slot 2. To further increase overall system performance, up to four Pentium III Xeon 500 1MB CPUs can work together in a multi-processor (SMP) configuration. Pentium III Xeon 500 1MB has 1 MB of L2 cache and operates at 500 MHz. Intel is making the Pentium III Xeon 500 1MB on a unknown production node using 10 million transistors. The multiplier is locked on Pentium III Xeon 500 1MB, which limits its overclocking potential.
With a TDP of 45 W, the Pentium III Xeon 500 1MB consumes typical power levels for a modern PC. The highest officially supported memory speed is 100 MT/s, but with overclocking (and the right memory modules) you can go even higher. This processor lacks integrated graphics, you might need a graphics card.
Many games will refuse to start on this processor due to the lack of the SSE2/SSE3/SSE4 instruction set.