AMD Athlon II X4 645 vs AMD Athlon 64 FX-74

Comparative analysis of AMD Athlon II X4 645 and AMD Athlon 64 FX-74 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s).

 

Differences

Reasons to consider the AMD Athlon II X4 645

• CPU is newer: launch date 3 year(s) 10 month(s) later
• 2 more cores, run more applications at once: 4 vs 2
• Around 3% higher clock speed: 3.1 GHz vs 3 GHz
• A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
• 4x more L1 cache, more data can be stored in the L1 cache for quick access later
• 2x more L2 cache, more data can be stored in the L2 cache for quick access later
• Around 32% lower typical power consumption: 95 Watt vs 125 Watt
• 2x better performance in PassMark - Single thread mark: 1256 vs 617
• 2.4x better performance in PassMark - CPU mark: 2351 vs 972

Compare benchmarks

CPU 1: AMD Athlon II X4 645
CPU 2: AMD Athlon 64 FX-74

PassMark - Single thread mark	CPU 1 CPU 2	1256 617
PassMark - CPU mark	CPU 1 CPU 2	2351 972

Compare specifications (specs)