AMD Athlon II X4 640 vs AMD Phenom II X4 955 (95W)

Comparative analysis of AMD Athlon II X4 640 and AMD Phenom II X4 955 (95W) 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, 3DMark Fire Strike - Physics Score, 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).

AMD Athlon II X4 640

AMD Phenom II X4 955 (95W)

Differences

Reasons to consider the AMD Athlon II X4 640

CPU is newer: launch date 1 year(s) 0 month(s) later

Launch date	May 2010 vs April 2009

Reasons to consider the AMD Phenom II X4 955 (95W)

Around 7% higher clock speed: 3.2 GHz vs 3 GHz

Maximum frequency	3.2 GHz vs 3 GHz

Compare benchmarks

CPU 1: AMD Athlon II X4 640
CPU 2: AMD Phenom II X4 955 (95W)

Name	AMD Athlon II X4 640	AMD Phenom II X4 955 (95W)
PassMark - Single thread mark	1212
PassMark - CPU mark	2262
Geekbench 4 - Single Core	358
Geekbench 4 - Multi-Core	1191
3DMark Fire Strike - Physics Score	0
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.776
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	7.618
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.17
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.052

Compare specifications (specs)

	AMD Athlon II X4 640	AMD Phenom II X4 955 (95W)
Essentials
Architecture codename	Propus	Deneb
Launch date	May 2010	April 2009
Launch price (MSRP)	$80
Place in performance rating	3034	not rated
Price now	$239.95
Value for money (0-100)	4.07
Vertical segment	Desktop	Desktop
Performance
64 bit support
Die size	169 mm	258 mm
L1 cache	128 KB (per core)	128 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
Manufacturing process technology	45 nm	45 nm
Maximum frequency	3 GHz	3.2 GHz
Number of cores	4	4
Transistor count	300 million	758 million
L3 cache		6144 KB (shared)
Memory
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	AM3
Thermal Design Power (TDP)	95 Watt	95 Watt