Intel Core i7 1255U vs AMD Ryzen 7 5800U
We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1255U with 10-cores against the 1.9 GHz AMD Ryzen 7 5800U 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
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of Intel Core i7 1255U
- Supports up to 64 GB DDR5-4800 RAM
- Newer - released 1-year and 2-months later
- Has 2 more physical cores
- Newer PCI Express version – 4.0
- 7% higher Turbo Boost frequency (4.7 GHz vs 4.4 GHz)
Advantages of AMD Ryzen 7 5800U
- More modern manufacturing process – 7 versus 10 nanometers
- Has 4096 KB larger L3 cache size
- 16% faster in a single-core Geekbench v6 test - 1950 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 | 740.4 MB/sec |
| Clang compilation | 36.1 Klines/sec | 57.4 Klines/sec |
| HTML 5 Browser | 144.2 pages/sec | 144.7 pages/sec |
| PDF Renderer | 152.3 Mpixels/sec | 231.7 Mpixels/sec |
| Text processing | 196.7 pages/sec | 200.6 pages/sec |
| Background blur | 37.3 images/sec | 34.5 images/sec |
| Photo processing | 69.3 images/sec | 59.3 images/sec |
| Ray tracing | 11.9 Mpixels/sec | 13.8 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 51.6 GOps/sec | 76.3 GOps/sec |
| Floating point math | 34.2 GOps/sec | 39.9 GOps/sec |
| Find prime numbers | 45M Primes/sec | 48M Primes/sec |
| Random string sorting | 17.4M Strings/sec | 24.1M Strings/sec |
| Data encryption | 9.6 GBytes/sec | 14.8 GBytes/sec |
| Data compression | 150.3 MBytes/sec | 229.1 MBytes/sec |
| Physics | 860 Frames/sec | 764 Frames/sec |
| Extended instructions | 8.4B Matrices/sec | 14.9B Matrices/sec |
Specifications
Full technical specification of Intel Core i7 1255U and AMD Ryzen 7 5800UGeneral
| Vendor | Intel | AMD |
| Released | February 23, 2022 | January 12, 2021 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake | Zen 3 (Cezanne) |
| Model number | i7-1255U | - |
| Integrated GPU | Iris Xe Graphics (96EU) | Radeon RX Vega 8 |
CPU
| P-Cores | 2 | 8 |
| P-Threads | 4 | 16 |
| Base Frequency (P) | 1.7 GHz | 1.9 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz | 4.4 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 | 19x |
| 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 | 7 nm |
| TDP (PL1) | 12-15 W (configurable) | 10-25 W (configurable) |
| Max. Boost TDP (PL2) | 55 W | - |
| Socket | BGA-1744 | FP6 |
| Peak temperature | 100°C | 105°C |
iGPU
| Integrated Graphics | Intel Iris Xe Graphics (96EU) | Radeon RX Vega 8 |
| GPU Base Clock | 300 MHz | - |
| GPU Boost Clock | 1250 MHz | 2000 MHz |
| Shading Units | 768 | 512 |
| TMUs | 48 | 32 |
| ROPs | 24 | 8 |
| Execution Units | 96 | - |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory types | - DDR5-4800 - DDR4-3200 - LPDDR5-5200 - LPDDR4x-4267 |
- DDR4-3200 - LPDDR4-4266 |
| Memory Size | 64 GB | 32 GB |
| Max. Memory Channels | 2 | 2 |
| ECC Support | No | No |
Misc
| Official site | Intel Core i7 1255U official page | AMD Ryzen 7 5800U official page |
| PCI Express Version | 4.0 | 3.0 |
| PCI Express Lanes | 20 | 12 |
Cast your vote
Total votes: 111