AMD A4-4020 vs AMD Athlon II X4 640

Comparative analysis of AMD A4-4020 and AMD Athlon II X4 640 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), 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 A4-4020

AMD Athlon II X4 640

Differences

Reasons to consider the AMD A4-4020

CPU is newer: launch date 3 year(s) 9 month(s) later
Around 113233% higher clock speed: 3400 MHz vs 3 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
Around 46% lower typical power consumption: 65 Watt vs 95 Watt

Launch date	March 2014 vs May 2010
Maximum frequency	3400 MHz vs 3 GHz
Manufacturing process technology	32 nm vs 45 nm
Thermal Design Power (TDP)	65 Watt vs 95 Watt

Reasons to consider the AMD Athlon II X4 640

2 more cores, run more applications at once: 4 vs 2
5.3x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	4 vs 2
L1 cache	128 KB (per core) vs 96 KB
L2 cache	512 KB (per core) vs 1024 KB

Compare benchmarks

CPU 1: AMD A4-4020
CPU 2: AMD Athlon II X4 640

Name	AMD A4-4020	AMD Athlon II X4 640
GFXBench 4.0 - Car Chase Offscreen (Frames)	453
GFXBench 4.0 - Car Chase Offscreen (Fps)	453
PassMark - Single thread mark		1212
PassMark - CPU mark		2245
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 A4-4020	AMD Athlon II X4 640
Essentials
Architecture codename	Richland	Propus
Family	AMD A4-Series
Launch date	March 2014	May 2010
Launch price (MSRP)	$40	$80
Place in performance rating	3028	3020
Processor Number	A4-4020
Vertical segment	Desktop	Desktop
Price now		$239.95
Value for money (0-100)		4.07
Performance
64 bit support
Base frequency	3200 MHz
L1 cache	96 KB	128 KB (per core)
L2 cache	1024 KB	512 KB (per core)
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	70 °C
Maximum frequency	3400 MHz	3 GHz
Number of cores	2	4
Number of threads	2
Die size		169 mm
Transistor count		300 million
Memory
Max memory channels	2
Maximum memory bandwidth	21.3 Gb/s
Supported memory types	DDR3-1333	DDR3
Graphics
Graphics base frequency	720 MHz
Number of pipelines	128
Processor graphics	Radeon HD 7480D
Unified Video Decoder (UVD)
Compatibility
Sockets supported	FM2	AM3
Thermal Design Power (TDP)	65 Watt	95 Watt
Max number of CPUs in a configuration		1
Peripherals
PCI Express revision	2.0
Advanced Technologies
Enhanced Virus Protection (EVP)
Fused Multiply-Add 3 (FMA3)
Fused Multiply-Add 4 (FMA4)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)