Intel Core i9-11900KF vs Intel Core i9-7920X
Physical Specifications
| Socket | Intel Socket 1200 | Intel Socket 2066 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 14 nm | 14 nm |
| Transistors | unknown | unknown |
| Die size | unknown | unknown |
| Package | FC-LGA1200 | FC-LGA2066 |
| tCaseMax | 72°C | 72°C |
| tJMax | 100°C | — |
Performance
| Frequency | 3.5 GHz | 2.9 GHz |
|---|---|---|
| Turbo clock | up to 5.3 GHz | up to 4.4 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 35.0x | 29.0x |
| Multiplier unlocked | Yes | Yes |
| TDP | 125 W | 140 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | Active | Active |
| Release date | Mar 16th, 2021 | Sep 10th, 2017 |
| Codename | Rocket Lake | Skylake-X |
| Generation | Core i9 | Core i9 |
| Part | unknown | SR3NG |
| Memory support | DDR4-3200 MHz Dual-channel | DDR4 Quad-channel |
| ECC memory | No | No |
| PCI Express | Gen 4, 20 Lanes(CPU only) | Gen 3 |
| Chipsets | H510, B560, Z590 | — |
Cores
| Total Cores | 8 | 12 |
|---|---|---|
| Total Threads | 16 | 24 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 1MB (per core) |
| Cache L3 | 16MB (shared) | 16.5MB (shared) |
Features & Technologies
| ABM | Yes | — |
|---|---|---|
| ADX | Yes | — |
| AES-NI | Yes | Yes |
| AVX | Yes | Yes |
| AVX-512 | Yes | Yes |
| AVX2 | Yes | Yes |
| BMI1 | Yes | Yes |
| BMI2 | Yes | Yes |
| Boost 2.0 | — | Yes |
| Boost 3.0 | — | Yes |
| CLMUL | Yes | Yes |
| EIST | Yes | Yes |
| F16C | Yes | Yes |
| FMA3 | Yes | Yes |
| HTT | — | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| RdRand | Yes | — |
| SHA | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | Yes | Yes |
| TBT 2.0 | Yes | — |
| TBT 3.0 | Yes | — |
| TSX | Yes | Yes |
| TXT | Yes | Yes |
| VT-d | Yes | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
Notes
| Notes | — | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
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