Intel Core i7 1255U vs AMD Ryzen 7 6800U
We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1255U with 10-cores against the 2.7 GHz AMD Ryzen 7 6800U with 8-cores. 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 power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of Intel Core i7 1255U
- Has 2 more physical cores
Advantages of AMD Ryzen 7 6800U
- More modern manufacturing process – 6 versus 10 nanometers
- Has 4096 KB larger L3 cache size
- 15% faster in a single-core Geekbench v6 test - 1936 vs 1681 points
Promotion
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench R23
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 513.4 MB/sec | 827.1 MB/sec |
| Clang compilation | 36.1 Klines/sec | 65.9 Klines/sec |
| HTML 5 Browser | 144.2 pages/sec | 185.7 pages/sec |
| PDF Renderer | 152.3 Mpixels/sec | 249.6 Mpixels/sec |
| Text processing | 196.7 pages/sec | 194 pages/sec |
| Background blur | 37.3 images/sec | 33.5 images/sec |
| Photo processing | 69.3 images/sec | 72.6 images/sec |
| Ray tracing | 11.9 Mpixels/sec | 15.3 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 51.6 GOps/sec | 79.6 GOps/sec |
| Floating point math | 34.2 GOps/sec | 42.9 GOps/sec |
| Find prime numbers | 45M Primes/sec | 57M Primes/sec |
| Random string sorting | 17.4M Strings/sec | 26.4M Strings/sec |
| Data encryption | 9.6 GBytes/sec | 15.8 GBytes/sec |
| Data compression | 150.3 MBytes/sec | 245.5 MBytes/sec |
| Physics | 860 Frames/sec | 1001 Frames/sec |
| Extended instructions | 8.4B Matrices/sec | 15.9B Matrices/sec |
Specifications
Full technical specification of Intel Core i7 1255U and AMD Ryzen 7 6800UGeneral
| Vendor | Intel | AMD |
| Released | February 23, 2022 | January 4, 2022 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake | Zen 3+ (Rembrandt) |
| Model number | i7-1255U | - |
| Integrated GPU | Iris Xe Graphics (96EU) | Radeon 680M |
CPU
| P-Cores | 2 | 8 |
| P-Threads | 4 | 16 |
| Base Frequency (P) | 1.7 GHz | 2.7 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz | 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 | 8 |
| Total Threads | 12 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 17x | 27x |
| L1 Cache | 80K (per core) | 64K (per core) |
| L2 Cache | 1280K (per core) | 512K (per core) |
| L3 Cache | 12MB (shared) | 16MB (shared) |
| Unlocked Multiplier | No | No |
Package
| Fabrication process | 10 nm | 6 nm |
| TDP (PL1) | 12-15 W (configurable) | 15-28 W (configurable) |
| Max. Boost TDP (PL2) | 55 W | - |
| Socket | BGA-1744 | FP7 |
| Peak temperature | 100°C | 95°C |
iGPU
| Integrated Graphics | Intel Iris Xe Graphics (96EU) | AMD Radeon 680M |
| GPU Base Clock | 300 MHz | 2000 MHz |
| GPU Boost Clock | 1250 MHz | 2200 MHz |
| Shading Units | 768 | 768 |
| TMUs | 48 | 48 |
| ROPs | 24 | 32 |
| Execution Units | 96 | 12 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory types | - DDR5-4800 - DDR4-3200 - LPDDR5-5200 - LPDDR4x-4267 |
- DDR5-4800 - LPDDR5-6400 |
| Memory Size | 64 GB | 64 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | - | 76.8 GB/s |
| ECC Support | No | No |
Misc
| Official site | Intel Core i7 1255U official page | AMD Ryzen 7 6800U official page |
| PCI Express Version | 4.0 | 4.0 |
| PCI Express Lanes | 20 | 20 |
Cast your vote
Total votes: 106