intel core i7 11800h vs intel core i7 1255u
VS
We compared two CPUs Intel Core i7 11800H (Laptop) 8-cores against Intel Core i7 1255U (Laptop) 10-cores. In this comparison page, we check which of these two processor has better performance in benchmark results, Games, architecture, price and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Key Differences
Advantages of Intel Core i7 11800H
- Has 12 MB larger L3 cache size
- Supports up to 128 GB DDR4 RAM
Advantages of Intel Core i7 1255U
- Newer released 1 years later
- Has 2 more physical cores
- Consumes up to 67% less energy than the Intel Core i7 11800H – 15 vs 45 Watt
- 2% higher Turbo Boost frequency (4.7 GHz vs 4.6 GHz)
- More modern manufacturing process – 7 versus 10
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
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Vendor | Intel | Intel |
| Released | May 11 2021 | January 4 2022 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Tiger Lake H45 | Alder Lake-U |
| Socket | FCBGA1787 | FCBGA1744 |
| Integrated GPU | Intel® UHD Graphics for 11th Gen Intel® Processors | Intel® Iris® Xe Graphics eligible |
Performance
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Cores | 8 | 10 |
| Threads | 16 | 12 |
| Base Frequency | 2.3 GHz | 1.7 GHz |
| Turbo Boost Frequency | 4.6 GHz | 4.7 GHz |
| L1 Cache | 96K (per core) | 80K (per core) |
| L2 Cache | 1.25 MB (per core) | 1.25 MB (per core) |
| L3 Cache | 24 MB (shared) | 12 MB (shared) |
Power
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Fabrication process | 10 nm SuperFin | Intel 7 nm |
| Power consumption (TDP) | 45 W | 15 W |
| Max. temperature | 100°C | 100°C |
Memory support
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Memory types | DDR4, DDR4 | DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267 |
| Memory Size | 128 GB | 64 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 51.2 GB/s | - |
| ECC Support | No | No |
iGPU
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Integrated Graphics | Intel® UHD Graphics for 11th Gen Intel® Processors | Intel® Iris® Xe Graphics eligible |
| GPU Base Clock | 350 MHz | 300 MHz |
| GPU Boost Clock | 1.45 MHz | 1.25 MHz |
| Shading Units | 256 | 768 |
| TMUs | 16 | 48 |
| ROPs | 8 | 24 |
| Execution Units | 32 | 96 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Misc
| Intel Core i7 11800H | Intel Core i7 1255U | |
| Official site | Intel Core i7 11800H official page | Intel Core i7 1255U official page |
| PCI Express Version | 4 | 4 |
| PCI Express Lanes | 20 | 20 |