AMD Phenom II X4 840 vs AMD Phenom II X4 940 BE

Comparative analysis of AMD Phenom II X4 840 and AMD Phenom II X4 940 BE 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).

AMD Phenom II X4 840

AMD Phenom II X4 940 BE

Differences

Reasons to consider the AMD Phenom II X4 840

CPU is newer: launch date 2 year(s) 0 month(s) later
Around 7% higher clock speed: 3.2 GHz vs 3 GHz
Around 32% lower typical power consumption: 95 Watt vs 125 Watt
Around 7% better performance in PassMark - Single thread mark: 1298 vs 1213
Around 2% better performance in PassMark - CPU mark: 2410 vs 2358
Around 1% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.91 vs 3.856

Specifications (specs)
Launch date	January 2011 vs January 2009
Maximum frequency	3.2 GHz vs 3 GHz
Thermal Design Power (TDP)	95 Watt vs 125 Watt
Benchmarks
PassMark - Single thread mark	1298 vs 1213
PassMark - CPU mark	2410 vs 2358
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.91 vs 3.856

Reasons to consider the AMD Phenom II X4 940 BE

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 2% better performance in Geekbench 4 - Single Core: 397 vs 391
Around 29% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 3.763 vs 2.92
Around 24% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 11.035 vs 8.884
Around 21% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.192 vs 0.159

Specifications (specs)
Unlocked	Unlocked vs Locked
Benchmarks
Geekbench 4 - Single Core	397 vs 391
Geekbench 4 - Multi-Core	1331 vs 1325
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.763 vs 2.92
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	11.035 vs 8.884
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.192 vs 0.159

Compare benchmarks

CPU 1: AMD Phenom II X4 840
CPU 2: AMD Phenom II X4 940 BE

PassMark - Single thread mark

CPU 1

CPU 2

1298

1213

PassMark - CPU mark

CPU 1

CPU 2

2410

2358

Geekbench 4 - Single Core

CPU 1

CPU 2

391

397

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1325

1331

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

2.92

3.763

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

CPU 1

CPU 2

8.884

11.035

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

CPU 1

CPU 2

0.159

0.192

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

3.91

3.856

Name	AMD Phenom II X4 840	AMD Phenom II X4 940 BE
PassMark - Single thread mark	1298	1213
PassMark - CPU mark	2410	2358
Geekbench 4 - Single Core	391	397
Geekbench 4 - Multi-Core	1325	1331
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.92	3.763
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	8.884	11.035
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.159	0.192
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.91	3.856

Compare specifications (specs)

	AMD Phenom II X4 840	AMD Phenom II X4 940 BE
Essentials
Architecture codename	Propus	Deneb
Family	AMD Phenom
Launch date	January 2011	January 2009
Launch price (MSRP)	$90
OPN PIB	HDX840WFGMBOX
OPN Tray	HDX840WFK42GM
Place in performance rating	2861	2867
Price now	$89.95
Series	AMD Phenom II X4
Value for money (0-100)	11.50
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.2 GHz
Die size	169 mm	258 mm
L1 cache	512 KB	128 KB (per core)
L2 cache	2 MB	512 KB (per core)
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	71°C
Maximum frequency	3.2 GHz	3 GHz
Number of cores	4	4
Number of threads	4
Transistor count	300 million	758 million
Unlocked
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	125 Watt