AMD Athlon II X3 450 vs AMD Athlon II X4 640

Comparative analysis of AMD Athlon II X3 450 and AMD Athlon II X4 640 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, 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), 3DMark Fire Strike - Physics Score.

AMD Athlon II X3 450

AMD Athlon II X4 640

Differences

Reasons to consider the AMD Athlon II X3 450

CPU is newer: launch date 4 month(s) later
Around 7% higher clock speed: 3.2 GHz vs 3 GHz
Around 7% better performance in PassMark - Single thread mark: 1300 vs 1212
Around 4% better performance in Geekbench 4 - Single Core: 372 vs 358

Specifications (specs)
Launch date	September 2010 vs May 2010
Maximum frequency	3.2 GHz vs 3 GHz
Benchmarks
PassMark - Single thread mark	1300 vs 1212
Geekbench 4 - Single Core	372 vs 358

Reasons to consider the AMD Athlon II X4 640

1 more cores, run more applications at once: 4 vs 3
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 21% better performance in PassMark - CPU mark: 2262 vs 1870
Around 27% better performance in Geekbench 4 - Multi-Core: 1191 vs 941
Around 87% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.776 vs 1.488
2.2x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 7.618 vs 3.501
Around 87% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.17 vs 0.091
Around 27% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.052 vs 3.184

Specifications (specs)
Number of cores	4 vs 3
L1 cache	128 KB (per core) vs 128 KB (per core)
L2 cache	512 KB (per core) vs 512 KB (per core)
Benchmarks
PassMark - CPU mark	2262 vs 1870
Geekbench 4 - Multi-Core	1191 vs 941
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.776 vs 1.488
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	7.618 vs 3.501
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.17 vs 0.091
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.052 vs 3.184

Compare benchmarks

CPU 1: AMD Athlon II X3 450
CPU 2: AMD Athlon II X4 640

PassMark - Single thread mark

CPU 1

CPU 2

1300

1212

PassMark - CPU mark

CPU 1

CPU 2

1870

2262

Geekbench 4 - Single Core

CPU 1

CPU 2

372

358

Geekbench 4 - Multi-Core

CPU 1

CPU 2

941

1191

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

1.488

2.776

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

CPU 1

CPU 2

3.501

7.618

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

CPU 1

CPU 2

0.091

0.17

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

3.184

4.052

Name	AMD Athlon II X3 450	AMD Athlon II X4 640
PassMark - Single thread mark	1300	1212
PassMark - CPU mark	1870	2262
Geekbench 4 - Single Core	372	358
Geekbench 4 - Multi-Core	941	1191
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.488	2.776
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	3.501	7.618
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.091	0.17
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.184	4.052
3DMark Fire Strike - Physics Score		0

Compare specifications (specs)

	AMD Athlon II X3 450	AMD Athlon II X4 640
Essentials
Architecture codename	Rana	Propus
Launch date	September 2010	May 2010
Launch price (MSRP)	$45	$80
Place in performance rating	2970	3034
Price now	$39.99	$239.95
Value for money (0-100)	19.32	4.07
Vertical segment	Desktop	Desktop
Performance
64 bit support
Die size	169 mm	169 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	3.2 GHz	3 GHz
Number of cores	3	4
Transistor count	300 million	300 million
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