AMD A6-6420B vs AMD Athlon II X4 638

Comparative analysis of AMD A6-6420B and AMD Athlon II X4 638 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics API support, Compatibility, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD A6-6420B

AMD Athlon II X4 638

Differences

Reasons to consider the AMD A6-6420B

Around 56% higher clock speed: 4.2 GHz vs 2.7 GHz
Around 40% better performance in PassMark - Single thread mark: 1629 vs 1163

Specifications (specs)
Maximum frequency	4.2 GHz vs 2.7 GHz
Benchmarks
PassMark - Single thread mark	1629 vs 1163

Reasons to consider the AMD Athlon II X4 638

2 more cores, run more applications at once: 4 vs 2
2 more threads: 4 vs 2
Around 0% higher maximum core temperature: 70.10°C vs 70°C
5.3x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 45% better performance in PassMark - CPU mark: 2250 vs 1550

Specifications (specs)
Number of cores	4 vs 2
Number of threads	4 vs 2
Maximum core temperature	70.10°C vs 70°C
L1 cache	512 KB vs 96 KB
L2 cache	4 MB vs 1 MB
Benchmarks
PassMark - CPU mark	2250 vs 1550

Compare benchmarks

CPU 1: AMD A6-6420B
CPU 2: AMD Athlon II X4 638

PassMark - Single thread mark

CPU 1

CPU 2

1629

1163

PassMark - CPU mark

CPU 1

CPU 2

1550

2250

Name	AMD A6-6420B	AMD Athlon II X4 638
PassMark - Single thread mark	1629	1163
PassMark - CPU mark	1550	2250
Geekbench 4 - Single Core		1654
Geekbench 4 - Multi-Core		4651

Compare specifications (specs)

	AMD A6-6420B	AMD Athlon II X4 638
Essentials
Family	AMD A-Series Processors	AMD Athlon Processors
OPN Tray	AD642BOKA23HL	AD638XOJZ43GX
Place in performance rating	1623	1619
Series	AMD Business Class - Dual-Core A6-Series APU for Desktops	AMD Athlon II X4
Vertical segment	Desktop	Desktop
Architecture codename		Llano
Launch date		February 2012
OPN PIB		AD638XOJGXBOX
Price now		$26.49
Value for money (0-100)		35.55
Performance
Base frequency	4 GHz	2.7 GHz
L1 cache	96 KB	512 KB
L2 cache	1 MB	4 MB
Manufacturing process technology	32 nm SOI	32 nm
Maximum core temperature	70°C	70.10°C
Maximum frequency	4.2 GHz	2.7 GHz
Number of cores	2	4
Number of threads	2	4
Unlocked
64 bit support
Die size		228 mm
Transistor count		1178 million
Memory
Max memory channels	2
Supported memory frequency	1866 MHz
Supported memory types		DDR3
Graphics
Enduro
Graphics max frequency	800 MHz
iGPU core count	192
Processor graphics	AMD Radeon HD 8470D
Switchable graphics
Unified Video Decoder (UVD)
Video Codec Engine (VCE)
Graphics interfaces
DisplayPort
HDMI
Graphics API support
DirectX	11
Compatibility
Sockets supported	FM2	FM1 uPGA
Thermal Design Power (TDP)	65 Watt	65 Watt
Max number of CPUs in a configuration		1
Advanced Technologies
AMD App Acceleration
AMD Elite Experiences
AMD HD3D technology
Enhanced Virus Protection (EVP)
Fused Multiply-Add 4 (FMA4)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
PowerGating
PowerNow
RAID
Virtualization
AMD Virtualization (AMD-V™)
IOMMU 2.0