Intel Core i7-1250U vs Intel Core i7-1255U: comparison
Comparison of Intel Core i7-1250U and Intel Core i7-1255U: key differences and a full specification table.
Key differences
Intel Core i7-1255U has a higher maximum integrated graphics clock (1.25 GHz vs 950 MHz).
Both processors match on: core count (10), thread count (12), maximum clock (4.7 GHz), L3 cache (12 MB), maximum memory size (64 GB), memory channels (2), PCIe version (4).
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 i7-1250U | Intel Core i7-1255U |
|---|---|---|
| Cores / threads | 10 / 12 | 10 / 12 |
| Max boost clock | 4.7 GHz | 4.7 GHz |
| L3 cache | 12 MB | 12 MB |
| Process | Intel 7 | Intel 7 |
| Integrated graphics | Поддержка графики Intel Iris Xe | Поддержка графики Intel Iris Xe |
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 i7-1250U | Intel Core i7-1255U |
|---|---|---|
| General | ||
| Model | i7-1250U | i7-1255U |
| Codename | Alder Lake | Alder Lake |
| Segment | Mobile | Mobile |
| Product line | Процессоры Intel Core i7 12-го поколения | Процессоры Intel Core i7 12-го поколения |
| Process | Intel 7 | Intel 7 |
| Launch date | Q1 2022 | Q1 2022 |
| Status | Launched | Launched |
| Embedded options available | No | No |
| CPU | ||
| Cores | 10 | 10 |
| Threads | 12 | 12 |
| Multithreading (SMT/HT) | Yes | Yes |
| Performance cores | 2 | 2 |
| Efficient cores | 8 | 8 |
| Max boost clock | 4.7 GHz | 4.7 GHz |
| P-core max turbo | 4.7 GHz | 4.7 GHz |
| E-core max turbo | 3.5 GHz | 3.5 GHz |
| L3 cache | 12 MB | 12 MB |
| Processor base power | 9 W | 15 W |
| Maximum turbo power | 29 W | 55 W |
| Minimum assured power | — | 12 W |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2 | SSE4.1, SSE4.2, AVX2 |
| Memory | ||
| Max memory size | 64 GB | 64 GB |
| Memory types | LPDDR5, LPDDR4X | DDR5, DDR4, LPDDR5, LPDDR4X |
| Memory channels | 2 | 2 |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Поддержка графики Intel Iris Xe | Поддержка графики Intel Iris Xe |
| Has integrated graphics | Yes | Yes |
| Graphics max frequency | 950 MHz | 1.25 GHz |
| Graphics units | 96 | 96 |
| Max displays | 4 | 4 |
| Max resolution (DP) | 7680x4320@60Hz | 7680x4320@60Hz |
| Max resolution (HDMI) | 4096x2304@60Hz | 4096x2304@60Hz |
| Max resolution (eDP) | 4096x2304@120Hz | 4096x2304@120Hz |
| DirectX | 12.1 | 12.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3 | 3 |
| Graphics device ID | 0x46AA | 0x46A8 |
| Quick Sync Video | Yes | Yes |
| Graphics output | eDP 1.4b, DP 1.4a, HDMI 2.1 | eDP 1.4b, DP 1.4a, HDMI 2.1 |
| Multi-format codec engines | 2 | 2 |
| I/O and interfaces | ||
| PCI Express revision | 4 | 4 |
| Chipset PCIe revision | 3 | 3 |
| PCI Express lanes | 14 | 20 |
| Thunderbolt 4 | Yes | Yes |
| Package and thermal | ||
| Sockets supported | FCBGA1781 | FCBGA1744 |
| Max CPU configuration | 1 | 1 |
| Package size | 28.5 x 19 | 50 x 25 |
| 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 | Yes |
| Secure Key | Yes | Yes |
| Intel OS Guard | Yes | Yes |
| Intel Boot Guard | Yes | Yes |
| Mode-based Execute Control | Yes | Yes |
| Control-Flow Enforcement Technology | Yes | Yes |
| Threat Detection Technology | Yes | Yes |
| QuickAssist Software Acceleration | Yes | Yes |
| vPro Eligibility | Intel vPro Essentials | Intel vPro Essentials |
| Standard Manageability | Yes | Yes |
| Hardware Shield Eligibility | Yes | Yes |
| Technologies | ||
| Thermal Monitoring Technologies | Yes | Yes |
| Deep Learning Boost | Yes | Yes |
| Volume Management Device | Yes | Yes |
| Thread Director | Yes | Yes |
| Speed Shift Technology | Yes | Yes |
| Flex Memory Access | No | Yes |
| Smart Sound Technology | Yes | Yes |
| HD Audio | Yes | Yes |
| Wake on Voice | Yes | Yes |
| Gaussian & Neural Accelerator | Yes (3) | Yes (3) |
| Image Processing Unit | Yes (6) | Yes (6) |
| MIPI SoundWire | Yes (1.2) | Yes (1.2) |