Key facts
Production status: Active
Release date: 2021-03-15
Cores / Threads: 48 / 96
Base clock: 2300 MHz
Turbo clock: 3600 MHz
TDP: 225 W
Process: 7 nm
Codename: Milan
Generation: EPYC (Zen 3 (Milan))
All available specs
| Field | Value |
|---|---|
| name | EPYC 7643 |
| Socket | AMD Socket SP3 |
| Foundry | TSMC |
| Process Size | 7 nm |
| Transistors | 33,200 million |
| Die Size | 8x 81 mm² |
| Package | FCLGA-4094 |
| Market | Server/Workstation |
| Production Status | Active |
| Release Date | Mar 15th, 2021 |
| Part# | 100-000000326 100-100000326WOF |
| Frequency | 2.3 GHz |
| Turbo Clock | up to 3.6 GHz |
| Base Clock | 100 MHz |
| Multiplier | 23.0x |
| Multiplier Unlocked | No |
| Codename | Milan |
| Generation | EPYC (Zen 3 (Milan)) |
| Memory Support | DDR4 |
| ECC Memory | Yes |
| # of Cores | 48 |
| # of Threads | 96 |
| SMP # CPUs | 2 |
| Cache L1 | 64 KB (per core) |
| Cache L2 | 512 KB (per core) |
| Features | MMX, EMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AVX, AVX2, ABM, BMI1, BMI2, FMA3, AES, RdRand, SHA, ADX, CLMUL, F16C, Real, Protected, SMM, FPU, NX bit, SMT, AMD-Vi, AMD-V, SME, TSME, SEV, SenseMi, Boost 2 |
| Rated Speed | 3200 MT/s |
| Memory Bus | Eight-channel |
| Memory Bandwidth | 204.8 GB/s |
| Launch Price | $4,995 |
| PCI-Express | Gen 4, 128 Lanes (CPU only) |
| Cache L3 | 256 MB (shared) |
| Configurable TDP | 240 W |
| I/O Process Size | 12 nm |
| I/O Die Size | 416 mm² |
| # of CCDs | 8 |
| Cores per CCD | 6 |
| Benchmark rank | 12 |
| Benchmark samples | 11 |
| Benchmark price | 5424.99 |
| Benchmark category | Server |
| Benchmark socket | SP3 |
| Benchmark date | 2021-03-01 |
| Benchmark TDP (W) | 225 |
| Benchmark base (MHz) | 2300 |
| Benchmark turbo (MHz) | 3600 |
| Benchmark cores | 48 |
| Benchmark threads per core | 2 |
| Benchmark threads | 96 |