AMD EPYC 7642 | AMD EPYC 7543 | |
CPU comparisonIn this CPU comparison, we compare the AMD EPYC 7642 and the AMD EPYC 7543 and use benchmarks to check which processor is faster.
We compare the AMD EPYC 7642 48 core processor released in Q3/2019 with the AMD EPYC 7543 which has 32 CPU cores and was introduced in Q1/2021. |
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AMD EPYC (129) | Family | AMD EPYC (129) |
AMD EPYC 7002 (24) | CPU group | AMD EPYC 7003 (29) |
2 | Generation | 3 |
Rome (Zen 2) | Architecture | Milan (Zen 3) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
AMD EPYC 7643 | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7642 is a 48 core processor with a clock frequency of 2.30 GHz (3.30 GHz). The processor can compute 96 threads at the same time. The AMD EPYC 7543 clocks with 2.80 GHz (3.70 GHz), has 32 CPU cores and can calculate 64 threads in parallel. |
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AMD EPYC 7642 | Characteristic | AMD EPYC 7543 |
48 | Cores | 32 |
96 | Threads | 64 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.30 GHz | Frequency | 2.80 GHz |
3.30 GHz | Turbo Frequency (1 Core) | 3.70 GHz |
2.80 GHz | Turbo Frequency (All Cores) | 3.30 GHz |
Memory & PCIeUp to GB of memory in a maximum of 8 memory channels is supported by the AMD EPYC 7642, while the AMD EPYC 7543 supports a maximum of 4096 GB of memory with a maximum memory bandwidth of 204.8 GB/s enabled. |
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AMD EPYC 7642 | Characteristic | AMD EPYC 7543 |
DDR4-3200 | Memory | DDR4-3200 |
Max. Memory | 4096 GB | |
8 (Octa Channel) | Memory channels | 8 (Octa Channel) |
51.2 GB/s | Max. Bandwidth | 204.8 GB/s |
Yes | ECC | Yes |
-- | L2 Cache | -- |
256.00 MB | L3 Cache | 256.00 MB |
4.0 | PCIe version | 4.0 |
128 | PCIe lanes | 128 |
252.0 GB/s | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe AMD EPYC 7642 has a TDP of 225 W. The TDP of the AMD EPYC 7543 is 225 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD EPYC 7642 | Characteristic | AMD EPYC 7543 |
225 W | TDP (PL1 / PBP) | 225 W |
-- | TDP (PL2) | -- |
-- | TDP up | 240 W |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD EPYC 7642 has 256.00 MB cache and is manufactured in 7 nm. The cache of AMD EPYC 7543 is at 256.00 MB. The processor is manufactured in 7 nm. |
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AMD EPYC 7642 | Characteristic | AMD EPYC 7543 |
7 nm | Technology | 7 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 |
Q3/2019 | Release date | Q1/2021 |
8000 $ | Release price | 3761 $ |
show more data | show more data | |
AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7543
32C 64T @ 3.70 GHz |
AMD EPYC 7642
48C 96T @ 2.80 GHz |
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AMD EPYC 7543
32C 64T @ 3.30 GHz |
AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7543
32C 64T @ 3.70 GHz |
AMD EPYC 7642
48C 96T @ 2.80 GHz |
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AMD EPYC 7543
32C 64T @ 3.30 GHz |
AMD EPYC 7642
48C 96T @ 2.80 GHz |
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AMD EPYC 7543
32C 64T @ 3.30 GHz |
AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7543
32C 64T @ 3.70 GHz |
Devices using this processor |
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AMD EPYC 7642 | AMD EPYC 7543 |
Unknown | Unknown |