AMD EPYC 7543 | AMD EPYC 7401 | |
CPU comparisonAMD EPYC 7543 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 EPYC 7543 has 32 cores with 64 threads and clocks with a maximum frequency of 3.70 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The AMD EPYC 7543 was released in Q1/2021. 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 EPYC (129) | Family | AMD EPYC (129) |
AMD EPYC 7003 (29) | CPU group | AMD EPYC 7001 (12) |
3 | Generation | 1 |
Milan (Zen 3) | Architecture | Naples (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7543 is a 32 core processor with a clock frequency of 2.80 GHz (3.70 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 EPYC 7543 | Characteristic | AMD EPYC 7401 |
32 | Cores | 24 |
64 | Threads | 48 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.80 GHz | Frequency | 2.00 GHz |
3.70 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
3.30 GHz | Turbo Frequency (All Cores) | 2.80 GHz |
Memory & PCIeThe AMD EPYC 7543 supports a maximum of 4096 GB of memory in 8 memory channels. The AMD EPYC 7401 can connect up to GB of memory in 8 memory channels. |
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AMD EPYC 7543 | Characteristic | AMD EPYC 7401 |
DDR4-3200 | Memory | DDR4-2400, DDR4-2666 |
4096 GB | Max. Memory | |
8 (Octa Channel) | Memory channels | 8 (Octa Channel) |
204.8 GB/s | Max. Bandwidth | 170.6 GB/s |
Yes | ECC | Yes |
-- | L2 Cache | -- |
256.00 MB | L3 Cache | 64.00 MB |
4.0 | PCIe version | 3.0 |
128 | PCIe lanes | 128 |
252.0 GB/s | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD EPYC 7543 has a TDP of 225 W, that of the AMD EPYC 7401 is 170 W. |
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AMD EPYC 7543 | Characteristic | AMD EPYC 7401 |
225 W | TDP (PL1 / PBP) | 170 W |
-- | TDP (PL2) | -- |
240 W | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD EPYC 7543 has a 256.00 MB cache, while the AMD EPYC 7401 cache has a total of 64.00 MB. |
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AMD EPYC 7543 | Characteristic | AMD EPYC 7401 |
7 nm | Technology | 14 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
SP3 | Socket | SP3 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q1/2021 | Release date | Q3/2017 |
3761 $ | Release price | 1450 $ |
show more data | show more data | |
AMD EPYC 7543
32C 64T @ 3.70 GHz |
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AMD EPYC 7401
24C 48T @ 3.00 GHz |
AMD EPYC 7543
32C 64T @ 3.30 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
AMD EPYC 7543
32C 64T @ 3.70 GHz |
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AMD EPYC 7401
24C 48T @ 3.00 GHz |
AMD EPYC 7543
32C 64T @ 3.30 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
AMD EPYC 7543
32C 64T @ 3.30 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
AMD EPYC 7543
32C 64T @ 3.70 GHz |
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AMD EPYC 7401
24C 48T @ 3.00 GHz |
AMD EPYC 7543
32C 64T @ 3.30 GHz |
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AMD EPYC 7401
24C 48T @ 2.80 GHz |
Devices using this processor |
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AMD EPYC 7543 | AMD EPYC 7401 |
Unknown | Unknown |