AMD Athlon X4 750K vs AMD Phenom II X4 840

Comparative analysis of AMD Athlon X4 750K and AMD Phenom II X4 840 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Memory. 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).

AMD Athlon X4 750K

AMD Phenom II X4 840

Differences

Reasons to consider the AMD Athlon X4 750K

Around 25% higher clock speed: 4 GHz vs 3.2 GHz
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 13% better performance in PassMark - Single thread mark: 1467 vs 1299
Around 19% better performance in PassMark - CPU mark: 2883 vs 2425
Around 26% better performance in Geekbench 4 - Single Core: 492 vs 391
Around 46% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 4.272 vs 2.92
Around 45% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 12.842 vs 8.884
Around 40% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.223 vs 0.159

Specifications (specs)
Maximum frequency	4 GHz vs 3.2 GHz
Manufacturing process technology	32 nm vs 45 nm
L2 cache	4 MB vs 2 MB
Benchmarks
PassMark - Single thread mark	1467 vs 1299
PassMark - CPU mark	2883 vs 2425
Geekbench 4 - Single Core	492 vs 391
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.272 vs 2.92
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	12.842 vs 8.884
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.223 vs 0.159

Reasons to consider the AMD Phenom II X4 840

Around 5% lower typical power consumption: 95 Watt vs 100 Watt
Around 2% better performance in Geekbench 4 - Multi-Core: 1325 vs 1301
Around 22% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.91 vs 3.192

Specifications (specs)
Thermal Design Power (TDP)	95 Watt vs 100 Watt
Benchmarks
Geekbench 4 - Multi-Core	1325 vs 1301
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.91 vs 3.192

Compare benchmarks

CPU 1: AMD Athlon X4 750K
CPU 2: AMD Phenom II X4 840

PassMark - Single thread mark

CPU 1

CPU 2

1467

1299

PassMark - CPU mark

CPU 1

CPU 2

2883

2425

Geekbench 4 - Single Core

CPU 1

CPU 2

492

391

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1301

1325

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

4.272

2.92

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

CPU 1

CPU 2

12.842

8.884

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

CPU 1

CPU 2

0.223

0.159

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

3.192

3.91

Name	AMD Athlon X4 750K	AMD Phenom II X4 840
PassMark - Single thread mark	1467	1299
PassMark - CPU mark	2883	2425
Geekbench 4 - Single Core	492	391
Geekbench 4 - Multi-Core	1301	1325
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.272	2.92
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	12.842	8.884
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.223	0.159
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.584
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.192	3.91

Compare specifications (specs)

	AMD Athlon X4 750K	AMD Phenom II X4 840
Essentials
Family	AMD Athlon Processors	AMD Phenom
OPN PIB	AD750KWOHJBOX	HDX840WFGMBOX
OPN Tray	AD750KWOA44HJ	HDX840WFK42GM
Place in performance rating	2821	2870
Series	AMD Athlon X4	AMD Phenom II X4
Vertical segment	Desktop	Desktop
Architecture codename		Propus
Launch date		January 2011
Launch price (MSRP)		$90
Price now		$89.95
Value for money (0-100)		11.50
Performance
Base frequency	3.4 GHz	3.2 GHz
L2 cache	4 MB	2 MB
Manufacturing process technology	32 nm	45 nm
Maximum frequency	4 GHz	3.2 GHz
Number of cores	4	4
Number of threads	4	4
Unlocked
64 bit support
Die size		169 mm
L1 cache		512 KB
Maximum core temperature		71°C
Transistor count		300 million
Compatibility
Sockets supported	FM2	AM3
Thermal Design Power (TDP)	100 Watt	95 Watt
Max number of CPUs in a configuration		1
Memory
Supported memory types		DDR3