Intel Core i7-6660U vs Intel Core i7-6870HQ: comparison
Comparison of Intel Core i7-6660U and Intel Core i7-6870HQ: key differences and a full specification table.
Key differences
Intel Core i7-6660U has a lower TDP (15 W vs 45 W) and a higher maximum integrated graphics clock (1.05 GHz vs 1 GHz).
At the same time, Intel Core i7-6870HQ has more cores (4 vs 2), more threads (8 vs 4), a higher base clock (2.7 GHz vs 2.4 GHz) and a higher maximum clock (3.6 GHz vs 3.4 GHz).
Both processors match on: process node (14 nm), memory channels (2), 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 i7-6660U | Intel Core i7-6870HQ |
|---|---|---|
| Cores / threads | 2 / 4 | 4 / 8 |
| Max boost clock | 3.4 GHz | 3.6 GHz |
| L3 cache | 4 MB | 8 MB |
| TDP | 15 W | 45 W |
| Process | 14 nm | 14 nm |
| Integrated graphics | Intel Iris Graphics 540 | Intel Iris Pro Graphics 580 |
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 i7-6660U | Intel Core i7-6870HQ |
|---|---|---|
| General | ||
| Model | i7-6660U | i7-6870HQ |
| Codename | Skylake | Skylake |
| Segment | Mobile | Mobile |
| Product line | Процессоры Intel Core i7 6-го поколения | Процессоры Intel Core i7 6-го поколения |
| Process | 14 nm | 14 nm |
| Launch date | Q1 2016 | Q1 2016 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| End of servicing updates | 09/30/2022 | 09/30/2022 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 2 | 4 |
| Threads | 4 | 8 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 2.4 GHz | 2.7 GHz |
| Max boost clock | 3.4 GHz | 3.6 GHz |
| Turbo Boost 2.0 frequency | 3.4 GHz | 3.6 GHz |
| L3 cache | 4 MB | 8 MB |
| Bus speed | 4 GT/s | 8 GT/s |
| TDP | 15 W | 45 W |
| Configurable TDP-down | 9.5 W | 35 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | — |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2 | SSE4.1, SSE4.2, AVX2 |
| Memory | ||
| Max memory size | 32 GB | 64 GB |
| Memory types | DDR4, LPDDR3, DDR3L | DDR4, LPDDR3, DDR3L |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 34.1 GB/s | 34.1 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Intel Iris Graphics 540 | Intel Iris Pro Graphics 580 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 300 MHz | 350 MHz |
| Graphics max frequency | 1.05 GHz | 1 GHz |
| Graphics video max memory | 32 GB | 64 GB |
| Max displays | 3 | 3 |
| Max resolution (DP) | 4096x2304@60Hz | 4096x2304@60Hz |
| Max resolution (HDMI) | 4096x2304@24Hz | 4096x2304@24Hz |
| Max resolution (eDP) | 4096x2304@60Hz | 4096x2304@60Hz |
| DirectX | 12 | 12 |
| OpenGL | 4.5 | 4.5 |
| Graphics device ID | 0x1926 | 0x193B |
| Quick Sync Video | Yes | Yes |
| Clear Video HD | Yes | Yes |
| Clear Video | Yes | — |
| Graphics output | eDP/DP/HDMI/DVI | eDP/DP/HDMI/DVI |
| InTru 3D | Yes | — |
| 4K support | Yes, at 60Hz | Yes, at 60Hz |
| eDRAM | 64 MB | 128 MB |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express lanes | 12 | 16 |
| PCI Express configurations | 1x4, 2x2, 1x2+2x1 and 4x1 | Up to 1x16, 2x8, 1x8+2x4 |
| Package and thermal | ||
| Sockets supported | FCBGA1356 | FCBGA1440 |
| Max CPU configuration | 1 | 1 |
| Package size | 42x24x1.3 | 42mm x 28mm |
| TJUNCTION | 100 °C | 100 °C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | Yes |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | Yes | No |
| Secure Key | Yes | Yes |
| Intel OS Guard | Yes | Yes |
| Intel Software Guard Extensions | Yes | Yes |
| Intel Memory Protection Extensions | Yes | Yes |
| Stable IT Platform Program | Yes | No |
| vPro Eligibility | Intel vPro Platform | — |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | Yes | — |
| Transactional Synchronization Extensions | Yes | No |
| Flex Memory Access | Yes | — |
| Smart Response Technology | Yes | Yes |