Intel Core i7 1255U vs Apple M1 Pro
We compared two 10-core laptop CPUs: the 1.7 GHz Intel Core i7 1255U against the 3.2 GHz Apple M1 Pro. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of Intel Core i7 1255U
- Supports up to 64 GB DDR5-4800 RAM
Advantages of Apple M1 Pro
- More modern manufacturing process – 5 versus 10 nanometers
- Supports quad-channel memory
Benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Specifications
General
| Vendor | Intel | Apple |
| Released | February 23, 2022 | October 18, 2021 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | ARMv8 |
| Codename | Alder Lake | Apple M1 |
| Model number | i7-1255U | - |
| Integrated GPU | Iris Xe Graphics (96EU) | Apple M1 Pro GPU (16-core) |
CPU
| P-Cores | 2 | 8 |
| P-Threads | 4 | 8 |
| Base Frequency (P) | 1.7 GHz | 3.2 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz | - |
| E-Cores | 8 | 2 |
| E-Threads | 8 | 2 |
| Base Frequency (E) | 1.2 GHz | 2.1 GHz |
| Turbo Boost Frequency (E) | 3.5 GHz | - |
| Total Cores | 10 | 10 |
| Total Threads | 12 | 10 |
| Bus Frequency | 100 MHz | - |
| Multiplier | 17x | - |
| L1 Cache | 80K (per core) | 192K (per core) |
| L2 Cache | 1280K (per core) | 24MB (shared) |
| L3 Cache | 12MB (shared) | - |
| Unlocked Multiplier | No | No |
Package
| Transistors | - | 33.7 billions |
| Fabrication process | 10 nm | 5 nm |
| Socket | BGA-1744 | Apple M-Socket |
| TDP | 12-15 W (configurable) | 30 W |
| Max. Boost TDP | 55 W | - |
| Peak temperature | 100°C | - |
iGPU
| Integrated Graphics | Intel Iris Xe Graphics (96EU) | Apple M1 Pro GPU (16-core) |
| GPU Base Clock | 300 MHz | 450 MHz |
| GPU Boost Clock | 1250 MHz | 1296 MHz |
| Shading Units | 768 | 2048 |
| TMUs | 48 | 128 |
| ROPs | 24 | 64 |
| Execution Units | 96 | - |
| TGP | 15 W | 30 W |
| Max. Resolution | - | 6016x3384 - 60 Hz |
iGPU FLOPS
Memory Support
| Memory types | DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267 | LPDDR5-6400 |
| Memory Size | 64 GB | 32 GB |
| Max. Memory Channels | 2 | 4 |
| Max. Memory Bandwidth | - | 204.8 GB/s |
| ECC Support | No | No |
Misc
| Official site | Intel Core i7 1255U official page | - |
| PCI Express Version | 4.0 | - |
| PCI Express Lanes | 20 | - |
Cast your vote
Total votes: 38