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The AMD Athlon II X4 640 is a high end central processor for full sized PC motherboards that use an AM3 CPU socket.

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Pros

great value

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sub $100 price point

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fast 3GHz individual core speed - fast enough for even the most demanding games and applications

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compatible with the latest AM3 motherboards, backwards compatible with older DDR2-based AM2+ motherboards

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full quad core processor

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a great option for those interested in upgrading their system without breaking the bank investing in an entirely new socket board, processor and ram modules

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Cons

hot 95W TDP

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not as energy efficient or capable of as much raw performance / overclocking potential as Intel's latest (yet more expensive) generation of competing chips

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drops the L3 cache of the higher end Phenom II series of processors

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Edit

 

The AMD Athlon II X4 640 is a high end central processor for full sized PC motherboards that use an AM3 CPU socket. This is similar in function to the AMD Athlon II X4 610e, but uses more than twice the power at 95 Watts to increase processing speed to 3.0 GHz. Otherwise they are functionally the same, and both use a 45 nanometer architecture. 2 Mb of level 2 cache buffers data to keep the processor running efficiently, and a HyperTransport bus is used to eliminate the need for a built-in Front Side Bus on the motherboard. This CPU comes with a 3-year limited warranty.

Features
  • AM3 socket
  • Speed: 3.0 GHz
  • Power: 95 W
  • L2 Cache: 2Mb
  • Quad-Core processing
  • HyperTransport bus: 4000MHz
  • CMOS: 45 nm SOI
  • Certificate of authenticity, Installation manual included
  • 3-year limited warranty
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