AMD Ryzen 9 9955HX vs Ryzen 9 8940HX
82
out of 100
VS
70
out of 100
We compared two 16-core laptop CPUs: the 2.5 GHz AMD Ryzen 9 9955HX against the 2.4 GHz Ryzen 9 8940HX. 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 AMD Ryzen 9 9955HX
- Supports up to 96 GB DDR5-5600 RAM
- More modern manufacturing process β 4 versus 5 nanometers
- 21% faster in a single-core Geekbench v6 test - 3273 vs 2708 points
- 2% higher Turbo Boost frequency (5.4 GHz vs 5.3 GHz)
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
| Cinebench 2026 (Single) | 717 | - |
| Cinebench 2026 (Multi) | 8163 | - |
Cinebench Scores (16th and 56th place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1520 MB/sec | 1250 MB/sec |
| Clang compilation | 222.1 Klines/sec | 178.9 Klines/sec |
| HTML 5 Browser | 329.3 pages/sec | 262.1 pages/sec |
| PDF Renderer | 545.2 Mpixels/sec | 430 Mpixels/sec |
| Text processing | 341.3 pages/sec | 255 pages/sec |
| Background blur | 70.4 images/sec | 55.9 images/sec |
| Photo processing | 123 images/sec | 94.7 images/sec |
| Ray tracing | 53.8 Mpixels/sec | 39.9 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 213 GOps/sec | 188.6 GOps/sec |
| Floating point math | 137 GOps/sec | 113.5 GOps/sec |
| Find prime numbers | 288M Primes/sec | 250M Primes/sec |
| Random string sorting | 78.1M Strings/sec | 75.1M Strings/sec |
| Data encryption | 37.4 GBytes/sec | 39.2 GBytes/sec |
| Data compression | 734.3 MBytes/sec | 648.8 MBytes/sec |
| Physics | 2722 Frames/sec | 2091 Frames/sec |
| Extended instructions | 58.2B Matrices/sec | 47.6B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 27.9 PPW | 21.6 PPW |
| Geekbench 6 Multi / Watt | 259.3 PPW | 204.2 PPW |
| Passmark CPU Mark / Watt | 750.7 PPW | 660.8 PPW |
| Blender / Watt | 7.19 PPW | 5.81 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
AMD Ryzen 9 9955HX
| Date | Benchmark | Result |
|---|---|---|
| π 2026-06-21 (Tino) | Cinebench 2026 | 717 / 8163 |
| π 2026-04-26 (Runzliger-Bert) | Cinebench 2024 | 128 / 2058 |
| π 2025-06-08 (Thebakedging) | Cinebench 2024 | 134 / 2091 |
AMD Ryzen 9 8940HX
| Date | Benchmark | Result |
|---|---|---|
| π 2025-12-20 (Marky) | Cinebench 2024 | 111 / 1769 |
| π 2025-12-17 (viraj anshuman) | Geekbench 6 CPU | 2864 / 14336 |
| π 2025-11-29 (CHRIStoK) | Cinebench 2024 | 110 / 1803 |
| π 2025-11-16 (SpeKtra_TM) | Geekbench 6 CPU | 2805 / 15483 |
| π 2025-11-16 (SpeKtra_TM) | Cinebench 2024 | 111 / 1678 |
Specifications
Full technical specification of AMD Ryzen 9 9955HX and Ryzen 9 8940HXGeneral
| Vendor | Amd | Amd |
| Released | January 7, 2025 | April 1, 2025 |
| Type | Laptop | Laptop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Zen 5 (Fire Range) | Zen 4 (Dragon Range) |
| Model number | 9955HX | - |
| Integrated GPU | Radeon 610M | Radeon 610M |
| Rival Equivalent | - Intel Core Ultra 9 285HX | - |
AMD Ryzen CPU ranking (9th and 35th place)
CPU
| P-Cores | 16 | 16 |
| P-Threads | 32 | 32 |
| Base Frequency (P) | 2.5 GHz | 2.4 GHz |
| Turbo Boost Frequency (P) | 5.4 GHz | 5.3 GHz |
| Total Cores | 16 | 16 |
| Total Threads | 32 | 32 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 25x | 24x |
| L1 Cache | 80K (per core) | 64K (per core) |
| L2 Cache | 1MB (per core) | 1MB (per core) |
| L3 Cache | 64MB (shared) | 64MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Package
| Fabrication Process | 4 nm | 5 nm |
| TDP (PL1) | 55-75 W (configurable) | 55-75 W (configurable) |
| Max. Boost TDP (PL2) | 101 W | - |
| Socket | FL1 | FL1 |
| Peak Temperature | 100Β°C | 100Β°C |
Laptop processors ranking (17th and 51st place)
iGPU
| Integrated Graphics | Radeon 610M | Radeon 610M |
| GPU Base Clock | 400 MHz | 400 MHz |
| GPU Boost Clock | 2200 MHz | 2200 MHz |
| Shading Units | 128 | 128 |
| TMUs | 8 | 8 |
| ROPs | 4 | 4 |
| Execution Units | 2 | 2 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory Types | - DDR5-5600 | - DDR5-5200 |
| Max. Memory Size | 96 GB | 64 GB |
| Memory Channels | 2 | 2 |
| ECC Support | Yes | No |
Misc
| Official Site | AMD Ryzen 9 9955HX official page | AMD Ryzen 9 8940HX official page |
| PCI Express Version | 5.0 | 5.0 |
| PCI Express Lanes | 28 | 28 |
Cast your vote
Total votes: 113