AMD A8-3800 vs AMD Athlon II X4 645

Comparative analysis of AMD A8-3800 and AMD Athlon II X4 645 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s).

AMD A8-3800

AMD Athlon II X4 645

Differences

Reasons to consider the AMD A8-3800

CPU is newer: launch date 9 month(s) later
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 46% lower typical power consumption: 65 Watt vs 95 Watt

Launch date	June 2011 vs September 2010
Manufacturing process technology	32 nm vs 45 nm
L2 cache	1024 KB (per core) vs 512 KB (per core)
Thermal Design Power (TDP)	65 Watt vs 95 Watt

Reasons to consider the AMD Athlon II X4 645

Around 29% higher clock speed: 3.1 GHz vs 2.4 GHz
Around 18% better performance in PassMark - Single thread mark: 1259 vs 1069
Around 15% better performance in PassMark - CPU mark: 2347 vs 2044
Around 11% better performance in Geekbench 4 - Single Core: 375 vs 338
Around 3% better performance in Geekbench 4 - Multi-Core: 1215 vs 1184

Specifications (specs)
Maximum frequency	3.1 GHz vs 2.4 GHz
Benchmarks
PassMark - Single thread mark	1259 vs 1069
PassMark - CPU mark	2347 vs 2044
Geekbench 4 - Single Core	375 vs 338
Geekbench 4 - Multi-Core	1215 vs 1184

Compare benchmarks

CPU 1: AMD A8-3800
CPU 2: AMD Athlon II X4 645

PassMark - Single thread mark

CPU 1

CPU 2

1069

1259

PassMark - CPU mark

CPU 1

CPU 2

2044

2347

Geekbench 4 - Single Core

CPU 1

CPU 2

338

375

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1184

1215

Name	AMD A8-3800	AMD Athlon II X4 645
PassMark - Single thread mark	1069	1259
PassMark - CPU mark	2044	2347
Geekbench 4 - Single Core	338	375
Geekbench 4 - Multi-Core	1184	1215
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.305
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		2.103
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		9.496

Compare specifications (specs)

	AMD A8-3800	AMD Athlon II X4 645
Essentials
Architecture codename	Llano	Propus
Launch date	June 2011	September 2010
Place in performance rating	2666	2679
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$80
Price now		$49.99
Value for money (0-100)		20.48
Performance
64 bit support
Die size	228 mm	169 mm
L1 cache	128 KB (per core)	128 KB (per core)
L2 cache	1024 KB (per core)	512 KB (per core)
Manufacturing process technology	32 nm	45 nm
Maximum frequency	2.4 GHz	3.1 GHz
Number of cores	4	4
Transistor count	1178 million	300 million
Memory
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	FM1	AM3
Thermal Design Power (TDP)	65 Watt	95 Watt
Virtualization
AMD Virtualization (AMD-V™)