Intel Core i7 1255U
Intel Core i7 1255U: Highlights
Intel Core i7 1255U is a laptop processor produced by Intel. It has 10 cores and 12 threads. CPU base clock frequency is 1700 MHz but it’s due to Turbo Boost technology. It can perform up to 4700 MHz. Intel Core i7 1255U CPU has integrated graphics – Intel Iris Xe Graphics G7 96EU.
Intel Core i7 1255U is based on a 7 nm fabrication process and a TDP of 12-15W. It supports DDR5 | DDR4 | LPDDR5 | LPDDR4x memory with a dual-channel interface and a memory speed is 4800 MT/s | 3200 MT/s | 5200 MT/s | 4267 MT/s. It was declared in February 2022.
SPECIFICATIONS
General Information
| Vendor | Intel |
| Released | February 2022 |
| Type | Laptop |
| Model | Core i7 1255U |
| Instruction set | x86-64 |
| Codename | Alder Lake-U |
| Socket | BGA-1744 |
| Integrated GPU | Iris Xe Graphics G7 96EU |
| Supported displays | 4 |
| Supports 64-bit | Yes |
CPU Performance
| Cores | 10 |
| Threads | 12 |
| Base Frequency | 1.7 GHz |
| Turbo Boost Frequency | 4.7 GHz |
| Bus Frequency | 100 MHz |
| Clock Multiplier | 17x |
| L1 Cache | 80K (per core) |
| L2 Cache | 1280K (per core) |
| L3 Cache | 12MB (shared) |
| L2 core | - |
| L3 core | - |
| Unlocked Multiplier | No |
iGPU
| Integrated Graphics | Iris Xe Graphics G7 96EU |
| GPU Base Clock | 300 MHz |
| GPU Boost Clock | 1250 MHz |
| Shading Units | 768 |
| TMUs | 48 |
| ROPs | 24 |
| Execution Units | 96 |
| TGP | 15W |
| Max. Resolution |
4096 x 2304 @ 60Hz 7680 x 4320 @ 60Hz 4096 x 2304 @ 120Hz |
| iGPU FLOPS | 1.69 TFLOPS |
Power
| Transistors | 9800 millions |
| Fabrication process | 7nm |
| TDP | 12W-15W |
| Max. temperature | 100°C |
Memory Support
| Memory Types |
DDR5 DDR4 LPDDR5 LPDDR4x |
| Memory Size | 64GB |
| RAM speed |
4800 MT/s 3200 MT/s 5200 MT/s 4267 MT/s |
| Max. Memory Channels | 2 |
| Max. Memory Bandwidth | 76.8 GB/s |
| ECC Support | No |
| DDR memory version | 5 |
| Bus Transfer Rate | - |
| Bus Speed | 8 GT/s |
Miscellaneous
| Official Site | Intel Core i7 1255U Official website |
| PCI Express Version | 4 |
| PCI Express Lanes | 20 |
Benchmarks
| Cinebench R23 Single-Core | 1297 |
| Cinebench R23 Multi-Core | 12654 |
| Passmark CPU Single-Core | 3035 |
| Passmark CPU Multi-Core | 12775 |
| Geekbench Single-Core | 1702 |
| Geekbench Multi-Core | 6595 |
Key Features
| SSE version | 4.2 |
| Front-end width | - |
| MULTITHREADING | |
| AES | |
| AVX | |
| F16C | |
| MMX | |
| TRUST ZONE | |
| NX BIT | |
| FMA4 | |
| FMA3 |
