The AMD Athlon 64 X2 4200+ was a desktop processor with 2 cores, launched in May 2006. It is part of the Athlon 64 X2 lineup, using the Windsor architecture with Socket AM2. Athlon 64 X2 4200+ has 512 KB of L2 cache per core and operates at 2.2 GHz. AMD is building the Athlon 64 X2 4200+ on a 90 nm production process using 164 million transistors. The multiplier is locked on Athlon 64 X2 4200+, which limits its overclocking capabilities.
With a TDP of 89 W, the Athlon 64 X2 4200+ consumes a good deal of power, so decent cooling is needed. AMD's processor supports DDR2 memory with a dual-channel interface. The highest officially supported memory speed is 800 MT/s, but with overclocking (and the right memory modules) you can go even higher. For communication with other components in the computer, Athlon 64 X2 4200+ uses a PCI-Express N/A connection. Although the processor doesn't come with integrated graphics, certain motherboards with compatible chipsets can provide this capability.
The SSE4 instruction set is not supported, which can cause problems with modern games, as they require that capability. Hardware virtualization is available on the Athlon 64 X2 4200+, which greatly improves virtual machine performance.