The AMD Opteron 846 HE was a server/workstation processor with 1 core, launched in March 2005. It is part of the Opteron lineup, using the Athens (E4) architecture with Socket 940. To further increase overall system performance, up to eight Opteron 846 HE CPUs can work together in a multi-processor (SMP) configuration. Opteron 846 HE has 1 MB of L2 cache and operates at 2000 MHz. AMD is making the Opteron 846 HE on a 90 nm production node using 106 million transistors. The multiplier is locked on Opteron 846 HE, which limits its overclocking potential.
With a TDP of 55 W, the Opteron 846 HE consumes typical power levels for a modern PC. For communication with other components in the machine, Opteron 846 HE uses a PCI-Express Gen 2 connection. This processor lacks integrated graphics, you might need a graphics card.
The SSE4 instruction set is not supported, which can cause problems with modern games, as they require that capability.