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AMD EPYC 7663 | AMD EPYC 7642 | |
CPU comparisonIn this CPU comparison, we compare the AMD EPYC 7663 and the AMD EPYC 7642 and use benchmarks to check which processor is faster.
We compare the AMD EPYC 7663 56 core processor released in Q1/2021 with the AMD EPYC 7642 which has 48 CPU cores and was introduced in Q3/2019. |
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AMD EPYC (129) | Family | AMD EPYC (129) |
AMD EPYC 7003 (29) | CPU group | AMD EPYC 7002 (24) |
3 | Generation | 2 |
Milan (Zen 3) | Architecture | Rome (Zen 2) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | AMD EPYC 7643 |
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CPU Cores and Base FrequencyThe AMD EPYC 7663 is a 56 core processor with a clock frequency of 2.00 GHz (3.50 GHz). The processor can compute 112 threads at the same time. The AMD EPYC 7642 clocks with 2.30 GHz (3.30 GHz), has 48 CPU cores and can calculate 96 threads in parallel. |
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AMD EPYC 7663 | Characteristic | AMD EPYC 7642 |
56 | Cores | 48 |
112 | Threads | 96 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.00 GHz | Frequency | 2.30 GHz |
3.50 GHz | Turbo Frequency (1 Core) | 3.30 GHz |
3.00 GHz | Turbo Frequency (All Cores) | 2.80 GHz |
Memory & PCIeUp to 4096 GB of memory in a maximum of 8 memory channels is supported by the AMD EPYC 7663, while the AMD EPYC 7642 supports a maximum of GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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AMD EPYC 7663 | Characteristic | AMD EPYC 7642 |
DDR4-3200 | Memory | DDR4-3200 |
4096 GB | Max. Memory | |
8 (Octa Channel) | Memory channels | 8 (Octa Channel) |
204.8 GB/s | Max. Bandwidth | 51.2 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 7663 has a TDP of 240 W. The TDP of the AMD EPYC 7642 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 7663 | Characteristic | AMD EPYC 7642 |
240 W | TDP (PL1 / PBP) | 225 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
225 W | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD EPYC 7663 has 256.00 MB cache and is manufactured in 7 nm. The cache of AMD EPYC 7642 is at 256.00 MB. The processor is manufactured in 7 nm. |
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AMD EPYC 7663 | Characteristic | AMD EPYC 7642 |
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 |
Q1/2021 | Release date | Q3/2019 |
6366 $ | Release price | 8000 $ |
show more data | show more data | |
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AMD EPYC 7663
56C 112T @ 3.50 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
Devices using this processor |
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AMD EPYC 7663 | AMD EPYC 7642 |
Unknown | Unknown |