Comparison of AMD Epyc 7662 and AMD Epyc 7742 [S]ave
| Attribute |  AMD Epyc 7742 × | AMD Epyc 7662 × |
|---|---|---|
| General Information | ||
| Brand | AMD | AMD |
| Series | AMD Epyc | AMD Epyc |
| Model | AMD Epyc 7742 | AMD Epyc 7662 |
| CPU Cores and Base Frequency | ||
| CPU Cores | 64 | 64 |
| Frequency (GHz) | 2.25 | 2 |
| CPU Threads | 128 | 128 |
| Core architecture | normal | normal |
| Hyperthreading | + | + |
| Overclocking | - | - |
| Turbo (1 Core) (GHz) | 3.4 | 3.3 |
| Turbo (64 Cores) (GHz) | 2.8 | 2.4 |
| Encryption | ||
| AES-NI | + | + |
| Hardware codec support | ||
| JPEG | No | No |
| h264 | No | No |
| h265 / HEVC (8 bit) | No | No |
| h265 / HEVC (10 bit) | No | No |
| VP8 | No | No |
| AV1 | No | No |
| VC-1 | No | No |
| VP9 | No | No |
| AVC | No | No |
| Memory And PCIe | ||
| Memory type | DDR4-3200 | DDR4-3200 |
| PCIe lanes | 128 | 128 |
| PCIe version | 4.0 | 4.0 |
| ECC | + | + |
| Memory channels | 8 | 8 |
| Technical details | ||
| Release date (year) | 2019 | 2020 |
| Technology (Nm) | 7 | 7 |
| Socket | SP3 | SP3 |
| Virtualization |
|
|
| L3-Cache (MB) | 256 | 256 |
| Architecture | Rome (Zen 2) | Rome (Zen 2) |
| Instruction set (ISA) | x86-64 (64 bit) | x86-64 (64 bit) |
| Thermal Management | ||
| TDP (PL1) (W) | 225 | 225 |
| Benchmarks | ||
| Estimated results for PassMark CPU Mark | 47,359 | 44,977 |
| Cinebench R20 (Single-Core) | 398 | 386 |
| Cinebench R20 (Multi-Core) | 20,644 | 18,203 |
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