[ INTEL ]
Processors
Intel Core i7 1255U
Overall Score
45/100
[ EXPERT VERDICT · SUMMARY ]
Intel Core i7 1255U is an engineering-tested processors achieving an overall rating of 45/100. It is positioned for balanced everyday compute and power efficiency.
Benchmark Performance Scores
Normalized 0–100 Scale
Efficiency
Rating: Below Average
55/100
Performance
Rating: Average
62/100
Detailed Technical Specifications
CPU
| Specification | Value |
|---|---|
| Base Frequency (E) | 1.2 GHz |
| Base Frequency (P) | 1.7 GHz |
| Bus Frequency | 100 MHz |
| E-Cores | 8 |
| E-Threads | 8 |
| L1 Cache | 80K (per core) |
| L2 Cache | 1280K (per core) |
| L3 Cache | 12MB (shared) |
| Multiplier | 17x |
| P-Cores | 2 |
| P-Threads | 4 |
| Total Cores | 10 |
| Total Threads | 12 |
| Turbo Boost Frequency (E) | 3.5 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz |
| Unlocked Multiplier | No |
GeekBench v6
| Specification | Value |
|---|---|
| Background blur | 31.6 images/sec |
| Clang compilation | 49.1 Klines/sec |
| File compression | 626.4 MB/sec |
| HTML 5 Browser | 179.7 pages/sec |
| PDF Renderer | 201.5 Mpixels/sec |
| Photo processing | 71.1 images/sec |
| Ray tracing | 9.8 Mpixels/sec |
| Text processing | 217.7 pages/sec |
General
| Specification | Value |
|---|---|
| Codename | Alder Lake |
| Instruction Set | x86-64 |
| Integrated GPU | Iris Xe Graphics (96EU) |
| Model number | i7-1255U |
| Released | February 23, 2022 |
| Successor | -Intel Core Ultra 7 255U |
| Type | Laptop |
| Vendor | Intel |
Memory Support
| Specification | Value |
|---|---|
| ECC Support | No |
| Max. Memory Size | 64 GB |
| Memory Channels | 2 |
| Memory Types | - DDR5-4800- DDR4-3200- LPDDR5-5200- LPDDR4x-4267 |
Misc
| Specification | Value |
|---|---|
| Official Site | Intel Core i7 1255U official page |
| PCI Express Lanes | 20 |
| PCI Express Version | 4.0 |
| Technologies | - Compute: ABM, ADX, BMI1, BMI2, CLMUL, F16C, SHA- Performance: EIST, TBT 2.0, TSX- Virtualization: VT-d, VT-x- Security: RDRAND, TXT, XD bit |
Package
| Specification | Value |
|---|---|
| Fabrication Process | 10 nm |
| Max. Boost TDP (PL2) | 55 W |
| Peak Temperature | 100°C |
| Socket | BGA-1744 |
| TDP (PL1) | 12-15 W (configurable) |
PassMark
| Specification | Value |
|---|---|
| Data compression | 145.7 MBytes/sec |
| Data encryption | 9.1 GBytes/sec |
| Extended instructions | 8.2B Matrices/sec |
| Find prime numbers | 38M Primes/sec |
| Floating point math | 32.2 GOps/sec |
| Integer math | 47.7 GOps/sec |
| Physics | 750 Frames/sec |
| Random string sorting | 16.8M Strings/sec |
Performance Per Watt
| Specification | Value |
|---|---|
| Blender / Watt | 5.15 PPW |
| Cinebench 2024 / Watt | 29.7 PPW |
| Geekbench 6 Multi / Watt | 477.3 PPW |
| Passmark CPU Mark / Watt | 865.2 PPW |
Recent User Tests
| Specification | Value |
|---|---|
| Date | Benchmark |
| 📘 2025-04-13(kapple) | Cinebench 2024 |
| 📘 2026-02-13->Lello75 | GeekBench |
iGPU
| Specification | Value |
|---|---|
| Execution Units | 96 |
| GPU Base Clock | 300 MHz |
| GPU Boost Clock | 1250 MHz |
| Integrated Graphics | Intel Iris Xe Graphics (96EU) |
| ROPs | 24 |
| Shading Units | 768 |
| TGP | 15 W |
| TMUs | 48 |
Strengths & Limitations
Key Advantages
- Comprehensive positive benchmark metrics recorded.
Key Considerations
- No major hardware limitations flagged during benchmark run.
Direct Competitors & Alternatives
INTEL
Intel Core Ultra 7 270K Plus
98/100
Compare →
AMD
AMD Ryzen 9 9950X3D2
97/100
Compare →
APPLE
Apple M5 Max (40-core GPU)
97/100
Compare →
APPLE
Apple M5 Pro (18-Core)
97/100
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Methodology, Provenance & Verification
Score version 2026.1 · Data verified 2026-08-26 · Source: official manufacturer datasheets and standardized reproducible benchmark suites (Geekbench 6, Cinebench R24, 3DMark).