Intel Core Ultra 7 255HX vs AMD Ryzen 7 8840HS
75
out of 100
VS
58
out of 100
We compared two laptop CPUs: the 2.4 GHz Intel Core Ultra 7 255HX with 20-cores against the 3.3 GHz AMD Ryzen 7 8840HS 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
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 255HX
- Has 12 more physical cores
- Unlocked multiplier
- Has 14 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
- Newer - released 1 year and 1 month later
- More modern manufacturing process β 3 versus 4 nanometers
- Newer PCI Express version β 5.0
- 13% faster in a single-core Geekbench v6 test - 2888 vs 2551 points
- 2% higher Turbo Boost frequency (5.2 GHz vs 5.1 GHz)
Advantages of AMD Ryzen 7 8840HS
- More powerful Radeon 780M integrated graphics: 4.1 vs 1.9 TFLOPS
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (#48th place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1140 MB/sec | 714.9 MB/sec |
| Clang compilation | 149.8 Klines/sec | 87.9 Klines/sec |
| HTML 5 Browser | 312.2 pages/sec | 182.5 pages/sec |
| PDF Renderer | 423.9 Mpixels/sec | 280.1 Mpixels/sec |
| Text processing | 335.6 pages/sec | 271.4 pages/sec |
| Background blur | 64.1 images/sec | 44.8 images/sec |
| Photo processing | 111.8 images/sec | 70.1 images/sec |
| Ray tracing | 31.1 Mpixels/sec | 19.2 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 127 GOps/sec | 88.4 GOps/sec |
| Floating point math | 160.3 GOps/sec | 51.6 GOps/sec |
| Find prime numbers | 400M Primes/sec | 78M Primes/sec |
| Random string sorting | 62.4M Strings/sec | 35.3M Strings/sec |
| Data encryption | 39.4 GBytes/sec | 17.5 GBytes/sec |
| Data compression | 513.6 MBytes/sec | 289.2 MBytes/sec |
| Physics | 2916 Frames/sec | 1153 Frames/sec |
| Extended instructions | 41.1B Matrices/sec | 20.4B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 32 PPW | 22.6 PPW |
| Geekbench 6 Multi / Watt | 328 PPW | 321.8 PPW |
| Passmark CPU Mark / Watt | 874.8 PPW | 820.8 PPW |
| Blender / Watt | 7.11 PPW | 5.59 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
Intel Core Ultra 7 255HX
| Date | Benchmark | Result |
|---|---|---|
| π 2026-06-05 (Levi) | Geekbench 6 CPU | 2907 / 17742 |
| π 2025-12-25 (Junebug) | Cinebench 2024 | 131 / 1759 |
| π 2025-12-17 (balihardik009) | Cinebench 2024 | 131 / 1820 |
| π 2025-11-26 (Verbickisd) | Cinebench 2024 | 125 / 1666 |
| π 2025-11-24 (Abhi) | Geekbench 6 CPU | 2823 / 17264 |
AMD Ryzen 7 8840HS
No benchmark results yet
Specifications
Full technical specification of Intel Core Ultra 7 255HX and AMD Ryzen 7 8840HSGeneral
| Vendor | Intel | Amd |
| Released | January 6, 2025 | December 6, 2023 |
| Type | Laptop | Laptop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Arrow Lake | Zen 4 (Hawk Point) |
| Model number | 255HX | - |
| Integrated GPU | Arc Graphics (4-Cores) | Radeon 780M |
| Rival Equivalent | - AMD Ryzen AI Max Pro 380 | - |
Intel CPU rating (#29th place)
AMD Ryzen CPU ranking (#75th place)
CPU
| P-Cores | 8 | 8 |
| P-Threads | 8 | 16 |
| Base Frequency (P) | 2.4 GHz | 3.3 GHz |
| Turbo Boost Frequency (P) | 5.2 GHz | 5.1 GHz |
| E-Cores | 12 | - |
| E-Threads | 12 | - |
| Base Frequency (E) | 1.8 GHz | - |
| Turbo Boost Frequency (E) | 4.5 GHz | - |
| Total Cores | 20 | 8 |
| Total Threads | 20 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 24x | 33x |
| L1 Cache | 192K (per core) | 64K (per core) |
| L2 Cache | 2MB (per core) | 1MB (per core) |
| L3 Cache | 30MB (shared) | 16MB (shared) |
| Unlocked Multiplier | Yes | No |
Package
| Transistors | - | 25 billions |
| Fabrication Process | 3 nm | 4 nm |
| TDP (PL1) | 45-55 W (configurable) | 20-30 W (configurable) |
| Max. Boost TDP (PL2) | 160 W | - |
| Socket | FCBGA-2114 | FP8 |
| Peak Temperature | 105Β°C | 100Β°C |
Laptop processors ranking (33rd and 120th place)
iGPU
| Integrated Graphics | Arc Graphics (4-Cores) | Radeon 780M |
| GPU Base Clock | 300 MHz | 800 MHz |
| GPU Boost Clock | 1850 MHz | 2700 MHz |
| Shading Units | 512 | 768 |
| TMUs | 32 | 48 |
| ROPs | 16 | 32 |
| Execution Units | 64 | 12 |
| TGP | 14 W | 15 W |
iGPU FLOPS
More info: Radeon 780M compared to Arc iGPU (4-Cores)
Memory Support
| Memory Types | - DDR5-6400 | - DDR5-5600 - LPDDR5x-7500 |
| Max. Memory Size | 256 GB | 256 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 102.4 GB/s | - |
| ECC Support | Yes | No |
Misc
| Official Site | Intel Core Ultra 7 255HX official page | AMD Ryzen 7 8840HS official page |
| PCI Express Version | 5.0 | 4.0 |
| PCI Express Lanes | 24 | 20 |
Cast your vote
Total votes: 8