AMD Phenom X4 B99 vs AMD A8-3820

Comparative analysis of AMD Phenom X4 B99 and AMD A8-3820 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Memory, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps).

AMD Phenom X4 B99

AMD A8-3820

Differences

Reasons to consider the AMD Phenom X4 B99

Around 22% better performance in PassMark - Single thread mark: 1377 vs 1130
Around 16% better performance in PassMark - CPU mark: 2536 vs 2180

Benchmarks
PassMark - Single thread mark	1377 vs 1130
PassMark - CPU mark	2536 vs 2180

Reasons to consider the AMD A8-3820

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

L2 cache	1024 KB (per core) vs 2 MB
Thermal Design Power (TDP)	65 Watt vs 95 Watt

Compare benchmarks

CPU 1: AMD Phenom X4 B99
CPU 2: AMD A8-3820

PassMark - Single thread mark

CPU 1

CPU 2

1377

1130

PassMark - CPU mark

CPU 1

CPU 2

2536

2180

Name	AMD Phenom X4 B99	AMD A8-3820
PassMark - Single thread mark	1377	1130
PassMark - CPU mark	2536	2180
Geekbench 4 - Single Core		1647
Geekbench 4 - Multi-Core		4806
GFXBench 4.0 - Car Chase Offscreen (Frames)		893
GFXBench 4.0 - Car Chase Offscreen (Fps)		893

Compare specifications (specs)

	AMD Phenom X4 B99	AMD A8-3820
Essentials
Family	AMD Phenom
OPN Tray	HDXB99WFK4DGM
Place in performance rating	1822	1852
Series	AMD Business Class - AMD Phenom X4 Quad-Core
Vertical segment	Desktop	Desktop
Architecture codename		Llano
Launch date		December 2011
Performance
Base frequency	3.3 GHz
L2 cache	2 MB	1024 KB (per core)
Number of cores	4	4
Number of threads	4
Unlocked
64 bit support
Die size		228 mm
L1 cache		128 KB (per core)
Manufacturing process technology		32 nm
Maximum frequency		2.5 GHz
Transistor count		1178 million
Compatibility
Sockets supported	AM3	FM1
Thermal Design Power (TDP)	95 Watt	65 Watt
Max number of CPUs in a configuration		1
Memory
Supported memory types		DDR3
Virtualization
AMD Virtualization (AMD-V™)