AMD Athlon II X4 631 vs AMD Athlon II X4 640

Comparative analysis of AMD Athlon II X4 631 and AMD Athlon II X4 640 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), 3DMark Fire Strike - Physics Score.

AMD Athlon II X4 631

AMD Athlon II X4 640

Differences

Reasons to consider the AMD Athlon II X4 631

CPU is newer: launch date 1 year(s) 3 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 30% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 3.611 vs 2.776
Around 36% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 10.376 vs 7.618
Around 15% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.196 vs 0.17

Specifications (specs)
Launch date	August 2011 vs May 2010
Manufacturing process technology	32 nm vs 45 nm
L2 cache	4 MB vs 512 KB (per core)
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.611 vs 2.776
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	10.376 vs 7.618
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.196 vs 0.17

Reasons to consider the AMD Athlon II X4 640

Around 15% higher clock speed: 3 GHz vs 2.6 GHz
Around 5% lower typical power consumption: 95 Watt vs 100 Watt
Around 9% better performance in PassMark - Single thread mark: 1212 vs 1115
Around 6% better performance in PassMark - CPU mark: 2245 vs 2122
Around 5% better performance in Geekbench 4 - Single Core: 358 vs 342
Around 6% better performance in Geekbench 4 - Multi-Core: 1191 vs 1125

Specifications (specs)
Maximum frequency	3 GHz vs 2.6 GHz
Thermal Design Power (TDP)	95 Watt vs 100 Watt
Benchmarks
PassMark - Single thread mark	1212 vs 1115
PassMark - CPU mark	2245 vs 2122
Geekbench 4 - Single Core	358 vs 342
Geekbench 4 - Multi-Core	1191 vs 1125
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.052 vs 4.046

Compare benchmarks

CPU 1: AMD Athlon II X4 631
CPU 2: AMD Athlon II X4 640

PassMark - Single thread mark

CPU 1

CPU 2

1115

1212

PassMark - CPU mark

CPU 1

CPU 2

2122

2245

Geekbench 4 - Single Core

CPU 1

CPU 2

342

358

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1125

1191

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

3.611

2.776

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

CPU 1

CPU 2

10.376

7.618

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

CPU 1

CPU 2

0.196

0.17

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.046

4.052

Name	AMD Athlon II X4 631	AMD Athlon II X4 640
PassMark - Single thread mark	1115	1212
PassMark - CPU mark	2122	2245
Geekbench 4 - Single Core	342	358
Geekbench 4 - Multi-Core	1125	1191
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.611	2.776
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	10.376	7.618
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.196	0.17
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.401
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.046	4.052
3DMark Fire Strike - Physics Score		0

Compare specifications (specs)

	AMD Athlon II X4 631	AMD Athlon II X4 640
Essentials
Architecture codename	Llano	Propus
Family	AMD Athlon Processors
Launch date	August 2011	May 2010
OPN PIB	AD631XWNGXBOX
OPN Tray	AD631XWNZ43GX
Place in performance rating	3019	3022
Price now	$80	$239.95
Series	AMD Athlon II X4
Value for money (0-100)	11.61	4.07
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$80
Performance
64 bit support
Base frequency	2.6 GHz
Die size	228 mm	169 mm
L1 cache	512 KB	128 KB (per core)
L2 cache	4 MB	512 KB (per core)
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	70.10°C
Maximum frequency	2.6 GHz	3 GHz
Number of cores	4	4
Number of threads	4
Transistor count	1178 million	300 million
Unlocked
Memory
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	FM1 uPGA	AM3
Thermal Design Power (TDP)	100 Watt	95 Watt
Virtualization
AMD Virtualization (AMD-V™)