Key facts
Production status: End-of-life
Release date: 2017-09-01
Cores / Threads: 14 / 28
Base clock: 3100 MHz
Turbo clock: 4400 MHz
TDP: 165 W
Process: 14 nm
Codename: Skylake-X
Generation: Core i9 (X-Series 7th Gen)
All available specs
| Field | Value |
|---|---|
| name | Core i9-7940X |
| Socket | Intel Socket 2066 |
| Foundry | Intel |
| Process Size | 14 nm |
| Die Size | 484 mm² |
| Package | FC-LGA2066 |
| Market | Desktop |
| Production Status | End-of-life |
| Release Date | Sep 1st, 2017 |
| Part# | SR3RQ |
| Frequency | 3.1 GHz |
| Turbo Clock | up to 4.4 GHz |
| Base Clock | 100 MHz |
| Multiplier | 31.0x |
| Multiplier Unlocked | Yes |
| Codename | Skylake-X |
| Generation | Core i9 (X-Series 7th Gen) |
| Memory Support | DDR4 |
| ECC Memory | No |
| # of Cores | 14 |
| # of Threads | 28 |
| SMP # CPUs | 1 |
| Cache L1 | 64 KB (per core) |
| Cache L2 | 1 MB (per core) |
| Features | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, AVX-512, EIST, Intel 64, XD bit, VT-x, VT-d, HTT, AES-NI, TSX, TXT, CLMUL, FMA3, F16C, BMI1, BMI2, Boost 2.0, Boost 3.0 |
| Notes | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
| Rated Speed | 2666 MT/s |
| Memory Bus | Quad-channel |
| Memory Bandwidth | 85.3 GB/s |
| Launch Price | $1,399 |
| PCI-Express | Gen 3, 44 Lanes (CPU only) |
| Cache L3 | 19.25 MB (shared) |
| Chipset | X299 |
| All-Core Turbo | 3.9 GHz |
| Boost 2.0 | up to 4.3 GHz |
| Benchmark rank | 190 |
| Benchmark samples | 385 |
| Benchmark price | 620 |
| Benchmark category | Desktop |
| Benchmark socket | FCLGA2066 |
| Benchmark date | 2017-09-01 |
| Benchmark TDP (W) | 165 |
| Benchmark base (MHz) | 3100 |
| Benchmark turbo (MHz) | 4300 |
| Benchmark cores | 14 |
| Benchmark threads per core | 2 |
| Benchmark threads | 28 |