Intel Core Ultra 7 256V vs Ultra 7 155U
58
out of 100
VS
50
out of 100
We compared two laptop CPUs: the 2.2 GHz Intel Core Ultra 7 256V with 8-cores against the 1.7 GHz Ultra 7 155U with 12-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
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
Key Differences
Advantages of Intel Core Ultra 7 256V
- More modern manufacturing process β 3 versus 7 nanometers
- More powerful Intel Arc Graphics 140V integrated graphics: 4 vs 2 TFLOPS
- Newer - released 9 months later
- Newer PCI Express version β 5.0
- 16% faster in a single-core Geekbench v6 test - 2676 vs 2315 points
Advantages of Intel Core Ultra 7 155U
- Supports up to 96 GB LPDDR5-7467 RAM
- Has 4 more physical cores
- More than 10Β° C higher critical temperature
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 974.9 MB/sec | 1000 MB/sec |
| Clang compilation | 67.7 Klines/sec | 62.5 Klines/sec |
| HTML 5 Browser | 260.1 pages/sec | 241.5 pages/sec |
| PDF Renderer | 282.1 Mpixels/sec | 264.8 Mpixels/sec |
| Text processing | 298.1 pages/sec | 233.2 pages/sec |
| Background blur | 50.8 images/sec | 39 images/sec |
| Photo processing | 105.2 images/sec | 97.3 images/sec |
| Ray tracing | 14 Mpixels/sec | 13.2 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 43.2 GOps/sec | 56.8 GOps/sec |
| Floating point math | 58.4 GOps/sec | 39.6 GOps/sec |
| Find prime numbers | 191M Primes/sec | 65M Primes/sec |
| Random string sorting | 22.4M Strings/sec | 19.5M Strings/sec |
| Data encryption | 14 GBytes/sec | 11.2 GBytes/sec |
| Data compression | 184.5 MBytes/sec | 174.6 MBytes/sec |
| Physics | 1590 Frames/sec | 1076 Frames/sec |
| Extended instructions | 15.6B Matrices/sec | 9.7B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 15.7 PPW | 36.6 PPW |
| Geekbench 6 Multi / Watt | 290.1 PPW | 632.4 PPW |
| Passmark CPU Mark / Watt | 526.3 PPW | 1076.1 PPW |
| Blender / Watt | 2.35 PPW | 6.65 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
Intel Core Ultra 7 256V
No benchmark results yet
Intel Core Ultra 7 155U
| Date | Benchmark | Result |
|---|---|---|
| π 2025-03-17 (KNOTs_007) | Cinebench 2024 | 101 / 997 |
| π 2025-02-14 (hanswurst) | Cinebench 2024 | 90 / 348 |
| π 2024-07-18 (Makikou) | Cinebench 2024 | 94 / 333 |
Specifications
Full technical specification of Intel Core Ultra 7 256V and Ultra 7 155UGeneral
| Vendor | Intel | Intel |
| Released | September 4, 2024 | December 14, 2023 |
| Type | Laptop | Laptop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Lunar Lake | Meteor Lake |
| Model number | 256V | 155U |
| Integrated GPU | Arc Graphics 140V | Arc Graphics (4-Cores) |
| Rival Equivalent | - | - AMD Ryzen 7 8840U |
| Successor | - | - Intel Core Ultra 7 255U |
Intel CPU rating (94th and 150th place)
CPU
| P-Cores | 4 | 2 |
| P-Threads | 4 | 4 |
| Base Frequency (P) | 2.2 GHz | 1.7 GHz |
| Turbo Boost Frequency (P) | 4.8 GHz | 4.8 GHz |
| E-Cores | 4 | 10 |
| E-Threads | 4 | 10 |
| Base Frequency (E) | 2.2 GHz | 1.2 GHz |
| Turbo Boost Frequency (E) | 3.7 GHz | 3.8 GHz |
| Total Cores | 8 | 12 |
| Total Threads | 8 | 14 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 22x | 17x |
| L1 Cache | 192K (per core) | 112K (per core) |
| L2 Cache | 2560K (per core) | 2MB (per core) |
| L3 Cache | 12MB (shared) | 12MB (shared) |
| Unlocked Multiplier | No | No |
Package
| Fabrication Process | 3 nm | 7 nm |
| TDP (PL1) | 17-37 W (configurable) | 12-15 W (configurable) |
| Max. Boost TDP (PL2) | 37 W | 57 W |
| Socket | FCBGA-2833 | FCBGA-2049 |
| Peak Temperature | 100Β°C | 110Β°C |
Laptop processors ranking (119th and 198th place)
iGPU
| Integrated Graphics | Intel Arc Graphics 140V | Arc Graphics (4-Cores) |
| GPU Base Clock | 600 MHz | 300 MHz |
| GPU Boost Clock | 1950 MHz | 1950 MHz |
| Shading Units | 1024 | 512 |
| TMUs | - | 32 |
| ROPs | - | 16 |
| Execution Units | - | 64 |
| TGP | 30 W | 14 W |
iGPU FLOPS
More info: Arc iGPU (4-Cores) compared to Arc 140V
Memory Support
| Memory Types | - LPDDR5X-8533 | - LPDDR5-7467 - LPDDR5x-7467 - DDR5-5600 |
| Max. Memory Size | 16 GB | 96 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | - | 89.6 GB/s |
| ECC Support | No | No |
Misc
| Official Site | Intel Core Ultra 7 256V official page | Intel Core Ultra 7 155U official page |
| PCI Express Version | 5.0 | 4.0 |
| PCI Express Lanes | 8 | 20 |
Cast your vote
Total votes: 21