AMD Phenom II X4 840 vs AMD Athlon X2 7850 BE

Comparative analysis of AMD Phenom II X4 840 and AMD Athlon X2 7850 BE processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization. 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), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).

 

Differences

Reasons to consider the AMD Phenom II X4 840

  • CPU is newer: launch date 1 year(s) 9 month(s) later
  • 2 more cores, run more applications at once: 4 vs 2
  • Around 14% higher clock speed: 3.2 GHz vs 2.8 GHz
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
  • 2x 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 81% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.92 vs 1.611
  • 2.3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 8.884 vs 3.841
  • Around 92% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.159 vs 0.083
  • 2.1x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.91 vs 1.833
Specifications (specs)
Launch date January 2011 vs April 2009
Number of cores 4 vs 2
Maximum frequency 3.2 GHz vs 2.8 GHz
Manufacturing process technology 45 nm vs 65 nm
L1 cache 512 KB vs 128 KB (per core)
L2 cache 2 MB vs 512 KB (per core)
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 2.92 vs 1.611
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 8.884 vs 3.841
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.159 vs 0.083
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.91 vs 1.833

Reasons to consider the AMD Athlon X2 7850 BE

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 4x better performance in Geekbench 4 - Single Core: 1554 vs 391
  • 2x better performance in Geekbench 4 - Multi-Core: 2668 vs 1325
Specifications (specs)
Unlocked Unlocked vs Locked
Benchmarks
Geekbench 4 - Single Core 1554 vs 391
Geekbench 4 - Multi-Core 2668 vs 1325

Compare benchmarks

CPU 1: AMD Phenom II X4 840
CPU 2: AMD Athlon X2 7850 BE

Geekbench 4 - Single Core
CPU 1
CPU 2
391
1554
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1325
2668
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
CPU 1
CPU 2
2.92
1.611
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
CPU 1
CPU 2
8.884
3.841
CompuBench 1.5 Desktop - T-Rex (Frames/s)
CPU 1
CPU 2
0.159
0.083
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
CPU 1
CPU 2
3.91
1.833
Name AMD Phenom II X4 840 AMD Athlon X2 7850 BE
PassMark - Single thread mark 1298
PassMark - CPU mark 2414
Geekbench 4 - Single Core 391 1554
Geekbench 4 - Multi-Core 1325 2668
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 2.92 1.611
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 8.884 3.841
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.159 0.083
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.91 1.833
CompuBench 1.5 Desktop - Video Composition (Frames/s) 0.159

Compare specifications (specs)

AMD Phenom II X4 840 AMD Athlon X2 7850 BE

Essentials

Architecture codename Propus Kuma
Family AMD Phenom
Launch date January 2011 April 2009
Launch price (MSRP) $90
OPN PIB HDX840WFGMBOX
OPN Tray HDX840WFK42GM
Place in performance rating 2861 2878
Price now $89.95
Series AMD Phenom II X4
Value for money (0-100) 11.50
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 3.2 GHz
Die size 169 mm 285 mm
L1 cache 512 KB 128 KB (per core)
L2 cache 2 MB 512 KB (per core)
Manufacturing process technology 45 nm 65 nm
Maximum core temperature 71°C
Maximum frequency 3.2 GHz 2.8 GHz
Number of cores 4 2
Number of threads 4
Transistor count 300 million 450 million
Unlocked
L3 cache 2048 KB (shared)

Memory

Supported memory types DDR3

Compatibility

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

Virtualization

AMD Virtualization (AMD-V™)