AMD A4-3420 vs AMD Phenom II X2 B55

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CPU comparison with benchmarks


AMD A4-3420 CPU1 vs CPU2 AMD Phenom II X2 B55
AMD A4-3420 AMD Phenom II X2 B55

CPU comparison

AMD A4-3420 or AMD Phenom II X2 B55 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD A4-3420 has 2 cores with 2 threads and clocks with a maximum frequency of 2.80 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A4-3420 was released in Q4/2011.

The AMD Phenom II X2 B55 has 2 cores with 2 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X2 B55 was released in Q4/2009.
AMD A (112) Family AMD Phenom II (52)
AMD A4-3000 (3) CPU group AMD Phenom II - 545 (9)
1 Generation 2
Llano (K10) Architecture Callisto (K10)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A4-3420 is a 2 core processor with a clock frequency of 2.80 GHz. The AMD Phenom II X2 B55 has 2 CPU cores with a clock frequency of 3.00 GHz.

AMD A4-3420 Characteristic AMD Phenom II X2 B55
2 Cores 2
2 Threads 2
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
2.80 GHz Frequency 3.00 GHz
-- Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD A4-3420 Characteristic AMD Phenom II X2 B55
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

AMD Radeon HD 6410D GPU no iGPU
0.60 GHz GPU frequency --
-- GPU (Turbo) --
3 GPU Generation --
32 nm Technology
2 Max. displays
2 Compute units --
160 Shader --
No Hardware Raytracing No
No Frame Generation No
1 GB Max. GPU Memory --
11 DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

AMD Radeon HD 6410D GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The AMD A4-3420 supports a maximum of GB of memory in 2 memory channels. The AMD Phenom II X2 B55 can connect up to GB of memory in 2 memory channels.

AMD A4-3420 Characteristic AMD Phenom II X2 B55
DDR3-1600 Memory DDR3-1333, DDR2-1066
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
1.00 MB L3 Cache 6.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD A4-3420 has a TDP of 65 W, that of the AMD Phenom II X2 B55 is 80 W.

AMD A4-3420 Characteristic AMD Phenom II X2 B55
65 W TDP (PL1 / PBP) 80 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A4-3420 has a 1.00 MB cache, while the AMD Phenom II X2 B55 cache has a total of 6.00 MB.

AMD A4-3420 Characteristic AMD Phenom II X2 B55
32 nm Technology 45 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions SSE3, SSE4a
FM1 Socket AM3
AMD-V Virtualization AMD-V
No AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q4/2011 Release date Q4/2009
-- Release price --
show more data show more data


Rate these processors

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Here you can rate the AMD Phenom II X2 B55 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 0 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD A4-3420 AMD A4-3420
2C 2T @ 2.80 GHz
1768 (92%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
1931 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A4-3420 AMD A4-3420
2C 2T @ 2.80 GHz
348 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A4-3420 AMD A4-3420
2C 2T @ 2.80 GHz
621 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD A4-3420 AMD A4-3420
AMD Radeon HD 6410D @ 0.60 GHz
192 (100%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
@ 0.00 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A4-3420 AMD A4-3420
2C 2T @ 2.80 GHz
0 (0%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
79 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A4-3420 AMD A4-3420
2C 2T @ 2.80 GHz
0 (0%)
AMD Phenom II X2 B55 AMD Phenom II X2 B55
2C 2T @ 3.00 GHz
152 (100%)

Devices using this processor

AMD A4-3420 AMD Phenom II X2 B55
Unknown Unknown

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