Intel Core i7 1255U
- Cores: 10
- L3 cache: 12MB (shared)
- TDP: 12-15 W (max. boost up to 55 W)
- Transistor size: 10 nm
Core i7 1255U - laptop processor produced by Intel for socket BGA-1744 that has 10 cores and 12 threads. The base clock frequency of the CPU is 1700 MHz, but due to Turbo Boost technology, it can perform up to 4700 MHz. The size of the L3 cache is 12 MB. Please note that this chip has integrated graphics Intel Iris Xe Graphics (96EU).
Specifications
General
| Vendor | Intel |
| Released | February 23, 2022 |
| Type | Laptop |
| instruction set | x86-64 |
| Codename | Alder Lake |
| Model number | i7-1255U |
| Integrated GPU | Iris Xe Graphics (96EU) |
CPU
| P-Cores | 2 |
| P-Threads | 4 |
| Base Frequency (P) | 1.7 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz |
| E-Cores | 8 |
| E-Threads | 8 |
| Base Frequency (E) | 1.2 GHz |
| Turbo Boost Frequency (E) | 3.5 GHz |
| Total Cores | 10 |
| Total Threads | 12 |
| Bus Frequency | 100 MHz |
| Multiplier | 17x |
| L1 Cache | 80K (per core) |
| L2 Cache | 1280K (per core) |
| L3 Cache | 12MB (shared) |
| Unlocked Multiplier | No |
Package
| Fabrication process | 10 nm |
| Socket | BGA-1744 |
| TDP | 12-15 W (configurable) |
| Max. Boost TDP | 55 W |
| Peak temperature | 100°C |
iGPU
| Integrated Graphics | Intel Iris Xe Graphics (96EU) |
| GPU Base Clock | 300 MHz |
| GPU Boost Clock | 1250 MHz |
| Shading Units | 768 |
| TMUs | 48 |
| ROPs | 24 |
| Execution Units | 96 |
| TGP | 15 W |
Memory Support
| Memory types | DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267 |
| Memory Size | 64 GB |
| Max. Memory Channels | 2 |
| ECC Support | No |
Misc
| Official site | Intel Core i7 1255U official page |
| PCI Express Version | 4.0 |
| PCI Express Lanes | 20 |
