The AMD A4-3400 APU is newer than AMD Phenom II X2 521, while AMD Phenom II X2 521 is around 21% faster in multi-threaded (CPU Mark) testing, it is around 23% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 341 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.
- The first section will show basic information for each CPU selected.
- The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
- An accompany graph, if price data is available, will shows the value for money, in terms of the
CPU Mark/Thread Rating per dollar.
- The last section will show approximate yearly running costs for the CPUs.