Intel Core i7 1255U vs i5 1135G7
We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1255U with 10-cores against the 0.9-2.4 GHz i5 1135G7 with 4-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 6 more physical cores
- Newer - released 1-year and 6-months later
- Has 4096 KB larger L3 cache size
- 12% higher Turbo Boost frequency (4.7 GHz vs 4.2 GHz)
- 13% faster in a single-core Geekbench v6 test - 1681 vs 1483 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 | 447.3 MB/sec |
| Clang compilation | 36.1 Klines/sec | 27.2 Klines/sec |
| HTML 5 Browser | 144.2 pages/sec | 103.3 pages/sec |
| PDF Renderer | 152.3 Mpixels/sec | 139.9 Mpixels/sec |
| Text processing | 196.7 pages/sec | 125.8 pages/sec |
| Background blur | 37.3 images/sec | 26 images/sec |
| Photo processing | 69.3 images/sec | 50.2 images/sec |
| Ray tracing | 11.9 Mpixels/sec | 6.91 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 51.6 GOps/sec | 32.9 GOps/sec |
| Floating point math | 34.2 GOps/sec | 19.9 GOps/sec |
| Find prime numbers | 45M Primes/sec | 36M Primes/sec |
| Random string sorting | 17.4M Strings/sec | 13.2M Strings/sec |
| Data encryption | 9.6 GBytes/sec | 5.7 GBytes/sec |
| Data compression | 150.3 MBytes/sec | 107.7 MBytes/sec |
| Physics | 860 Frames/sec | 605 Frames/sec |
| Extended instructions | 8.4B Matrices/sec | 7.8B Matrices/sec |
Specifications
Full technical specification of Intel Core i7 1255U and i5 1135G7General
| Vendor | Intel | Intel |
| Released | February 23, 2022 | September 2, 2020 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake | Tiger Lake |
| Model number | i7-1255U | i5-1135G7 |
| Integrated GPU | Iris Xe Graphics (96EU) | Iris Xe Graphics G7 80EU |
CPU
| P-Cores | 2 | 4 |
| P-Threads | 4 | 8 |
| Base Frequency (P) | 1.7 GHz | 0.9-2.4 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz | 4.2 GHz |
| E-Cores | 8 | - |
| E-Threads | 8 | - |
| Base Frequency (E) | 1.2 GHz | - |
| Turbo Boost Frequency (E) | 3.5 GHz | - |
| Total Cores | 10 | 4 |
| Total Threads | 12 | 8 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 17x | 9-24x |
| Bus Bandwidth | - | 4 GT/s |
| L1 Cache | 80K (per core) | 96K (per core) |
| L2 Cache | 1280K (per core) | 1280K (per core) |
| L3 Cache | 12MB (shared) | 8MB (shared) |
| Unlocked Multiplier | No | No |
Package
| Fabrication process | 10 nm | 10 nm |
| TDP (PL1) | 12-15 W (configurable) | 12-28 W (configurable) |
| Max. Boost TDP (PL2) | 55 W | - |
| Socket | BGA-1744 | BGA-1449 |
| Peak temperature | 100°C | 100°C |
iGPU
| Integrated Graphics | Intel Iris Xe Graphics (96EU) | Iris Xe Graphics G7 80EU |
| GPU Base Clock | 300 MHz | 300 MHz |
| GPU Boost Clock | 1250 MHz | 1300 MHz |
| Shading Units | 768 | 640 |
| TMUs | 48 | 40 |
| ROPs | 24 | 20 |
| Execution Units | 96 | 80 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory types | - DDR5-4800 - DDR4-3200 - LPDDR5-5200 - LPDDR4x-4267 |
- DDR4-3200 - LPDDR4-4267 |
| Memory Size | 64 GB | 64 GB |
| Max. Memory Channels | 2 | 2 |
| ECC Support | No | No |
Misc
| Official site | Intel Core i7 1255U official page | Intel Core i5 1135G7 official page |
| PCI Express Version | 4.0 | 4.0 |
| PCI Express Lanes | 20 | 16 |
Cast your vote
Total votes: 76