AMD A4-4020 | AMD Phenom II X4 955 | |
CPU comparisonIn this CPU comparison, we compare the AMD A4-4020 and the AMD Phenom II X4 955 and use benchmarks to check which processor is faster.
We compare the AMD A4-4020 2 core processor released in Q1/2014 with the AMD Phenom II X4 955 which has 4 CPU cores and was introduced in Q2/2009. |
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AMD A (112) | Family | AMD Phenom II (52) |
AMD A4-4000 (2) | CPU group | AMD Phenom II - 800/900 (23) |
2 | Generation | 4 |
Richland (Piledriver) | Architecture | Deneb (K10) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD A4-4020 is a 2 core processor with a clock frequency of 3.20 GHz (3.40 GHz). The processor can compute 2 threads at the same time. The AMD Phenom II X4 955 clocks with 3.20 GHz, has 4 CPU cores and can calculate 4 threads in parallel. |
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AMD A4-4020 | Characteristic | AMD Phenom II X4 955 |
2 | Cores | 4 |
2 | Threads | 4 |
normal | Core architecture | normal |
No | Hyperthreading | No |
Yes | Overclocking ? | Yes |
3.20 GHz | Frequency | 3.20 GHz |
3.40 GHz | Turbo Frequency (1 Core) | -- |
3.40 GHz | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)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. |
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AMD Radeon HD 7480D | GPU | no iGPU |
0.72 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
4 | GPU Generation | -- |
32 nm | Technology | |
2 | Max. displays | |
2 | Compute units | -- |
128 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | -- |
11 | DirectX Version | -- |
Hardware codec supportA 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. |
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AMD Radeon HD 7480D | 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 & PCIeUp to GB of memory in a maximum of 2 memory channels is supported by the AMD A4-4020, while the AMD Phenom II X4 955 supports a maximum of GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled. |
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AMD A4-4020 | Characteristic | AMD Phenom II X4 955 |
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 | -- |
1.00 MB | L3 Cache | 6.00 MB |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe AMD A4-4020 has a TDP of 65 W. The TDP of the AMD Phenom II X4 955 is 125 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD A4-4020 | Characteristic | AMD Phenom II X4 955 |
65 W | TDP (PL1 / PBP) | 125 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD A4-4020 has 1.00 MB cache and is manufactured in 32 nm. The cache of AMD Phenom II X4 955 is at 6.00 MB. The processor is manufactured in 45 nm. |
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AMD A4-4020 | Characteristic | AMD Phenom II X4 955 |
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 |
FM2 | Socket | AM3 |
AMD-V | Virtualization | AMD-V |
Yes | AES-NI | No |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q1/2014 | Release date | Q2/2009 |
32 $ | Release price | -- |
show more data | show more data | |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
AMD Radeon HD 7480D @ 0.72 GHz |
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AMD Phenom II X4 955
@ 0.00 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.20 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
AMD A4-4020
2C 2T @ 3.40 GHz |
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AMD Phenom II X4 955
4C 4T @ 3.20 GHz |
Devices using this processor |
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AMD A4-4020 | AMD Phenom II X4 955 |
Unknown | Unknown |