AMD Phenom X4 B99 vs AMD Athlon 64 X2 6400+ BE

Comparative analysis of AMD Phenom X4 B99 and AMD Athlon 64 X2 6400+ BE processors for all known characteristics in the following categories: Essentials, Performance, Compatibility. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

 

Differences

Reasons to consider the AMD Phenom X4 B99

  • 2 more cores, run more applications at once: 4 vs 2
  • 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
  • Around 21% better performance in PassMark - Single thread mark: 1377 vs 1141
  • 2.5x better performance in PassMark - CPU mark: 2536 vs 998
Specifications (specs)
Number of cores 4 vs 2
L2 cache 2 MB vs 1024 KB
Thermal Design Power (TDP) 95 Watt vs 125 Watt
Benchmarks
PassMark - Single thread mark 1377 vs 1141
PassMark - CPU mark 2536 vs 998

Compare benchmarks

CPU 1: AMD Phenom X4 B99
CPU 2: AMD Athlon 64 X2 6400+ BE

PassMark - Single thread mark
CPU 1
CPU 2
1377
1141
PassMark - CPU mark
CPU 1
CPU 2
2536
998
Name AMD Phenom X4 B99 AMD Athlon 64 X2 6400+ BE
PassMark - Single thread mark 1377 1141
PassMark - CPU mark 2536 998
Geekbench 4 - Single Core 1531
Geekbench 4 - Multi-Core 2453

Compare specifications (specs)

AMD Phenom X4 B99 AMD Athlon 64 X2 6400+ BE

Essentials

Family AMD Phenom
OPN Tray HDXB99WFK4DGM
Place in performance rating 1835 1845
Series AMD Business Class - AMD Phenom X4 Quad-Core
Vertical segment Desktop Desktop
Architecture codename Windsor
Launch date August 2007

Performance

Base frequency 3.3 GHz
L2 cache 2 MB 1024 KB
Number of cores 4 2
Number of threads 4
Unlocked
64 bit support
Die size 230 mm
L1 cache 256 KB
Manufacturing process technology 90 nm
Maximum frequency 3.2 GHz
Transistor count 227 million

Compatibility

Sockets supported AM3 AM2
Thermal Design Power (TDP) 95 Watt 125 Watt
Max number of CPUs in a configuration 1