The AMD Opteron 850 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 850 HE CPUs can work together in a multi-processor (SMP) configuration. Opteron 850 HE has 1 MB of L2 cache and operates at 2.4 GHz. AMD is making the Opteron 850 HE on a 90 nm production node using 106 million transistors. The multiplier is locked on Opteron 850 HE, which limits its overclocking potential.
With a TDP of 55 W, the Opteron 850 HE consumes typical power levels for a modern PC. For communication with other components in the machine, Opteron 850 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.