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AMD A4-4355M | AMD EPYC 7401 | |
CPU comparisonAMD A4-4355M or AMD EPYC 7401 - 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 A4-4355M has 2 cores with 2 threads and clocks with a maximum frequency of 2.40 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A4-4355M was released in Q1/2012. The AMD EPYC 7401 has 24 cores with 48 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7401 was released in Q3/2017. |
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AMD A (112) | Family | AMD EPYC (129) |
AMD A4-4000M (2) | CPU group | AMD EPYC 7001 (12) |
2 | Generation | 1 |
Trinity (Piledriver) | Architecture | Naples (Zen) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD A4-4355M is a 2 core processor with a clock frequency of 1.90 GHz (2.40 GHz). The AMD EPYC 7401 has 24 CPU cores with a clock frequency of 2.00 GHz (3.00 GHz). |
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AMD A4-4355M | Characteristic | AMD EPYC 7401 |
2 | Cores | 24 |
2 | Threads | 48 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
1.90 GHz | Frequency | 2.00 GHz |
2.40 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
2.40 GHz | Turbo Frequency (All Cores) | 2.80 GHz |
Integrated graphics (iGPU)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. |
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AMD Radeon HD 7400G | GPU | no iGPU |
0.33 GHz | GPU frequency | -- |
0.42 GHz | GPU (Turbo) | -- |
4 | GPU Generation | -- |
32 nm | Technology | |
2 | Max. displays | |
3 | Compute units | -- |
192 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
1 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 7400G | 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 & PCIeThe AMD A4-4355M supports a maximum of GB of memory in 2 memory channels. The AMD EPYC 7401 can connect up to GB of memory in 8 memory channels. |
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AMD A4-4355M | Characteristic | AMD EPYC 7401 |
DDR3-1333 | Memory | DDR4-2400, DDR4-2666 |
Max. Memory | ||
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
21.3 GB/s | Max. Bandwidth | 170.6 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
1.00 MB | L3 Cache | 64.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD A4-4355M has a TDP of 17 W, that of the AMD EPYC 7401 is 170 W. |
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AMD A4-4355M | Characteristic | AMD EPYC 7401 |
17 W | TDP (PL1 / PBP) | 170 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD A4-4355M has a 1.00 MB cache, while the AMD EPYC 7401 cache has a total of 64.00 MB. |
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AMD A4-4355M | Characteristic | AMD EPYC 7401 |
32 nm | Technology | 14 nm |
Unknown | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
FP2 | Socket | SP3 |
AMD-V | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Operating systems | Windows 10, Linux | |
Q1/2012 | Release date | Q3/2017 |
-- | Release price | 1450 $ |
show more data | show more data | |
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AMD A4-4355M
2C 2T @ 2.40 GHz |
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AMD EPYC 7401
24C 48T @ 3.00 GHz |
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AMD A4-4355M
2C 2T @ 2.40 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
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AMD A4-4355M
AMD Radeon HD 7400G @ 0.42 GHz |
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AMD EPYC 7401
@ 0.00 GHz |
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AMD A4-4355M
2C 2T @ 2.40 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
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AMD A4-4355M
2C 2T @ 2.40 GHz |
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AMD EPYC 7401
24C 48T @ 3.00 GHz |
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AMD A4-4355M
2C 2T @ 2.40 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
Devices using this processor |
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AMD A4-4355M | AMD EPYC 7401 |
Unknown | Unknown |