AMD Athlon X2 7850 BE vs AMD Phenom II X4 940 BE

Comparative analysis of AMD Athlon X2 7850 BE and AMD Phenom II X4 940 BE processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Virtualization, Memory. Benchmark processor performance analysis: 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), PassMark - Single thread mark, PassMark - CPU mark.

AMD Athlon X2 7850 BE

AMD Phenom II X4 940 BE

Differences

Reasons to consider the AMD Athlon X2 7850 BE

CPU is newer: launch date 3 month(s) later
Around 32% lower typical power consumption: 95 Watt vs 125 Watt
3.9x better performance in Geekbench 4 - Single Core: 1554 vs 397
2x better performance in Geekbench 4 - Multi-Core: 2668 vs 1331

Specifications (specs)
Launch date	April 2009 vs January 2009
Thermal Design Power (TDP)	95 Watt vs 125 Watt
Benchmarks
Geekbench 4 - Single Core	1554 vs 397
Geekbench 4 - Multi-Core	2668 vs 1331

Reasons to consider the AMD Phenom II X4 940 BE

2 more cores, run more applications at once: 4 vs 2
Around 7% higher clock speed: 3 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
3x more L3 cache, more data can be stored in the L3 cache for quick access later
2.3x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 3.763 vs 1.611
2.9x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 11.035 vs 3.841
2.3x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.192 vs 0.083
2.1x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.856 vs 1.833

Specifications (specs)
Number of cores	4 vs 2
Maximum frequency	3 GHz vs 2.8 GHz
Manufacturing process technology	45 nm vs 65 nm
L1 cache	128 KB (per core) vs 128 KB (per core)
L2 cache	512 KB (per core) vs 512 KB (per core)
L3 cache	6144 KB (shared) vs 2048 KB (shared)
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.763 vs 1.611
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	11.035 vs 3.841
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.192 vs 0.083
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.856 vs 1.833

Compare benchmarks

CPU 1: AMD Athlon X2 7850 BE
CPU 2: AMD Phenom II X4 940 BE

Geekbench 4 - Single Core

CPU 1

CPU 2

1554

397

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2668

1331

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

1.611

3.763

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

3.841

11.035

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.083

0.192

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

1.833

3.856

Name	AMD Athlon X2 7850 BE	AMD Phenom II X4 940 BE
Geekbench 4 - Single Core	1554	397
Geekbench 4 - Multi-Core	2668	1331
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.611	3.763
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	3.841	11.035
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.083	0.192
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.159
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	1.833	3.856
PassMark - Single thread mark		1212
PassMark - CPU mark		2345

Compare specifications (specs)

	AMD Athlon X2 7850 BE	AMD Phenom II X4 940 BE
Essentials
Architecture codename	Kuma	Deneb
Launch date	April 2009	January 2009
Place in performance rating	2880	2868
Vertical segment	Desktop	Desktop
Performance
64 bit support
Die size	285 mm	258 mm
L1 cache	128 KB (per core)	128 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
L3 cache	2048 KB (shared)	6144 KB (shared)
Manufacturing process technology	65 nm	45 nm
Maximum frequency	2.8 GHz	3 GHz
Number of cores	2	4
Transistor count	450 million	758 million
Unlocked
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM2+	AM3
Thermal Design Power (TDP)	95 Watt	125 Watt
Virtualization
AMD Virtualization (AMD-V™)
Memory
Supported memory types		DDR3