AMD A6-4455M vs AMD Phenom II X2 B57

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CPU comparison with benchmarks


AMD A6-4455M CPU1 vs CPU2 AMD Phenom II X2 B57
AMD A6-4455M AMD Phenom II X2 B57

CPU comparison

In this CPU comparison, we compare the AMD A6-4455M and the AMD Phenom II X2 B57 and use benchmarks to check which processor is faster.

We compare the AMD A6-4455M 2 core processor released in Q2/2012 with the AMD Phenom II X2 B57 which has 2 CPU cores and was introduced in Q2/2010.
AMD A (112) Family AMD Phenom II (52)
AMD A6-4000M (2) CPU group AMD Phenom II - 545 (9)
2 Generation 2
Trinity (Piledriver) Architecture Callisto (K10)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A6-4455M is a 2 core processor with a clock frequency of 2.10 GHz (2.60 GHz). The processor can compute 2 threads at the same time. The AMD Phenom II X2 B57 clocks with 3.20 GHz, has 2 CPU cores and can calculate 2 threads in parallel.

AMD A6-4455M Characteristic AMD Phenom II X2 B57
2 Cores 2
2 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
2.10 GHz Frequency 3.20 GHz
2.60 GHz Turbo Frequency (1 Core) --
2.60 GHz 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 A6-4455M Characteristic AMD Phenom II X2 B57
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

AMD Radeon HD 7500G GPU no iGPU
0.33 GHz GPU frequency --
0.43 GHz GPU (Turbo) --
4 GPU Generation --
32 nm Technology
2 Max. displays
4 Compute units --
256 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 7500G 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

Up to GB of memory in a maximum of 2 memory channels is supported by the AMD A6-4455M, while the AMD Phenom II X2 B57 supports a maximum of GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled.

AMD A6-4455M Characteristic AMD Phenom II X2 B57
DDR3-1333 Memory DDR3-1333, DDR2-1066
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 6.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The AMD A6-4455M has a TDP of 17 W. The TDP of the AMD Phenom II X2 B57 is 80 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD A6-4455M Characteristic AMD Phenom II X2 B57
17 W TDP (PL1 / PBP) 80 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A6-4455M has 2.00 MB cache and is manufactured in 32 nm. The cache of AMD Phenom II X2 B57 is at 6.00 MB. The processor is manufactured in 45 nm.

AMD A6-4455M Characteristic AMD Phenom II X2 B57
32 nm Technology 45 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE3, SSE4a
FP2 Socket AM3
AMD-V Virtualization AMD-V
Yes AES-NI No
Operating systems Windows 10, Linux
Q2/2012 Release date Q2/2010
-- Release price --
show more data show more data


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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 A6-4455M AMD A6-4455M
2C 2T @ 2.60 GHz
1293 (63%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 GHz
2060 (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 A6-4455M AMD A6-4455M
2C 2T @ 2.60 GHz
283 (100%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 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 A6-4455M AMD A6-4455M
2C 2T @ 2.60 GHz
413 (100%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 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 A6-4455M AMD A6-4455M
AMD Radeon HD 7500G @ 0.43 GHz
217 (100%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
@ 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 A6-4455M AMD A6-4455M
2C 2T @ 2.60 GHz
0 (0%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 GHz
84 (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 A6-4455M AMD A6-4455M
2C 2T @ 2.60 GHz
0 (0%)
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 GHz
162 (100%)

Devices using this processor

AMD A6-4455M AMD Phenom II X2 B57
Unknown Unknown

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