Summary: In this review PCSTATS is testing AMD's latest mainstream quad-core chip, the 3.1GHz Athlon II X4 645 processor. Architecturally speaking the Athlon II X4 645 is identical to the preceding Athlon II X4 635 model, except for a modest clock speed increase.
Conclusion: At Benchmark Reviews, we have also found the Athlon-II series of processors to be great at overclocking. This is something very nice for computer enthusiasts looking to pull every last MHz out of their systems.
Conclusion: As was evidenced by our test results, the Athlon-II X4-645 offers great performance for its price range. It competing very closely with processors costing a lot more. The most important thing, however, is just the simple fact that it can get the job done.
Cons: $23 more than X4-640 for only a 3% increase in performance
Summary: AMD‘s mantra has always been great performance at a great price, and the X4 645 certainly delivers. It delivers performance numbers mostly on par with the Intel i5 750, a CPU that retails for $200.
Conclusion: The X4 645 struggles to carve out a place for itself in the market. It's only averagely fast in single-threaded applications as, despite its high clock speed, it’s still based on an old architecture.
Summary: At a price point of $122, the AMD Athlon II X4 645 falls into the mainstream category for CPU processors.
Performance for the Athlon II X4 645 was excellent. Temperatures remained great and the benchmark numbers were awesome for a $122 processor.
Summary: Looking back at the performance graphs, Athlon II X4 645 performed as expected in every way, both good and bad, and even throwing a few pleasant surprises along the way. Strong points for this processor are by far its reasonable price, and fast four physical CPU cores that in some cases perform...
Pros: Very fast clocked budget Quad Core, Reasonably priced, Lots of computing power in multithreaded applications, Compatibility with older chipsets, Low operating temperatures, Power consumption improvements over C2 revision Athlon II X4
Cons: Lack of L3 cache is noticeable in some cases, Oscillating performance, depending on application, Gaming performance