Intel Core i7-7820X серии X vs Intel Core i7-6800K: comparison
Comparison of Intel Core i7-7820X серии X and Intel Core i7-6800K: key differences and a full specification table.
Key differences
Intel Core i7-7820X серии X has more cores (8 vs 6), more threads (16 vs 12), a higher base clock (3.6 GHz vs 3.4 GHz) and a higher maximum clock (4.3 GHz vs 3.6 GHz).
At the same time, Intel Core i7-6800K has a larger L3 cache (15 MB vs 11 MB).
Both processors match on: TDP (140 W), process node (14 nm), maximum memory size (128 GB), memory channels (4), PCIe version (3).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | Intel Core i7-7820X серии X | Intel Core i7-6800K |
|---|---|---|
| Cores / threads | 8 / 16 | 6 / 12 |
| Max boost clock | 4.3 GHz | 3.6 GHz |
| L3 cache | 11 MB | 15 MB |
| TDP | 140 W | 140 W |
| Process | 14 nm | 14 nm |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Core i7-7820X серии X | Intel Core i7-6800K |
|---|---|---|
| General | ||
| Model | i7-7820X | i7-6800K |
| Codename | Skylake | Broadwell E |
| Segment | Desktop | Desktop |
| Product line | Процессоры Intel Core серии X | Процессоры Intel Core серии X |
| Process | 14 nm | 14 nm |
| Launch date | Q2 2017 | Q2 2016 |
| Status | Discontinued | Discontinued |
| Servicing status | Baseline Servicing | End of Servicing Lifetime |
| End of servicing updates | 12/31/2023 | 06/30/2021 |
| Embedded options available | No | No |
| Box contents | Please note: The boxed product does not include a fan or heat sink | Please note: The boxed product does not include a fan or heat sink |
| CPU | ||
| Cores | 8 | 6 |
| Threads | 16 | 12 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3.6 GHz | 3.4 GHz |
| Max boost clock | 4.3 GHz | 3.6 GHz |
| Turbo Boost Max 3.0 frequency | 4.5 GHz | 3.8 GHz |
| L3 cache | 11 MB | 15 MB |
| Bus speed | 8 GT/s | — |
| TDP | 140 W | 140 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2, AVX-512 | — |
| QPI links | 0 | — |
| Memory | ||
| Max memory size | 128 GB | 128 GB |
| Memory types | DDR4 | DDR4 |
| Memory channels | 4 | 4 |
| Max memory bandwidth | 85 GB/s | — |
| ECC memory supported | No | No |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express lanes | 28 | 28 |
| Scalability | 1S Only | 1S Only |
| Package and thermal | ||
| Sockets supported | FCLGA2066 | FCLGA2011-3 |
| Max CPU configuration | 1 | 1 |
| TJUNCTION | 99 °C | — |
| TCASE | — | 67.2 °C |
| Thermal solution specification | PCG 2017X | — |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | Yes |
| Extended Page Tables (EPT) | — | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | — | No |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | — | Yes |
| Turbo Boost Max 3.0 | Yes | Yes |
| Optane Memory Supported | Yes | — |
| Smart Response Technology | — | Yes |
| AVX-512 FMA units | 2 | — |
Other comparisons
- Intel Core i7-7820X серии X vs Intel Core i7-7800X серии X
- Intel Core i7-7820X серии X vs Intel Core i9-7900X серии X
- Intel Core i7-7820X серии X vs Intel Core i9-7920X серии X
- Intel Core i7-6800K vs Intel Core i7-6850K
- Intel Core i7-6800K vs Intel Core i7-6900K
- Intel Core i7-6800K vs Intel Core i7-6950X Extreme Edition