The AMD Opteron 846 was a server/workstation processor with 1 core, launched in September 2003. It is part of the Opteron lineup, using the SledgeHammer (C0) architecture with Socket 940. Opteron 846 has 1 MB of L2 cache and operates at 2000 MHz. AMD is making the Opteron 846 on a 130 nm production node using 106 million transistors. The multiplier is locked on Opteron 846, which limits its overclocking potential.
With a TDP of 89 W, the Opteron 846 consumes a good deal of power, so decent cooling is needed. For communication with other components in the computer, Opteron 846 uses a PCI-Express Gen 2 connection. This processor lacks integrated graphics, you might need a graphics card.
Neither SSE3 nor SSE4 instruction sets are supported, which will lead to problems with games not starting.