Intel Core i9 13900K vs AMD Ryzen 9 7945HX
82
out of 100
VS
77
out of 100
We compared two CPUs: the 3 GHz Intel Core i9 13900K (desktop) with 24-cores against the 2.5 GHz AMD Ryzen 9 7945HX (laptop) with 16-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
The "iGPU" and "Power Efficiency" have a minor impact on the NanoReview Score for desktop CPU.
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
Value for money (Beta)
Key Differences
Advantages of Intel Core i9 13900K
- Supports up to 192 GB DDR5-5600 RAM
- Has 8 more physical cores
- More powerful Intel UHD Graphics 770 integrated graphics: 0.8 vs 0.6 TFLOPS
Advantages of AMD Ryzen 9 7945HX
- More modern manufacturing process β 5 versus 10 nanometers
- Has 28 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
| Cinebench 2026 (Single) | 673 | - |
| Cinebench 2026 (Multi) | 8146 | - |
Cinebench Scores (#7th place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1570 MB/sec | 1590 MB/sec |
| Clang compilation | 193.2 Klines/sec | 190.6 Klines/sec |
| HTML 5 Browser | 477 pages/sec | 320.2 pages/sec |
| PDF Renderer | 560.7 Mpixels/sec | 474.8 Mpixels/sec |
| Text processing | 301.8 pages/sec | 296.8 pages/sec |
| Background blur | 75.8 images/sec | 66.1 images/sec |
| Photo processing | 162.5 images/sec | 114.8 images/sec |
| Ray tracing | 43.5 Mpixels/sec | 43 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 206.4 GOps/sec | 205.1 GOps/sec |
| Floating point math | 150.5 GOps/sec | 122.1 GOps/sec |
| Find prime numbers | 232M Primes/sec | 280M Primes/sec |
| Random string sorting | 86.9M Strings/sec | 81.4M Strings/sec |
| Data encryption | 46.2 GBytes/sec | 42.2 GBytes/sec |
| Data compression | 785.8 MBytes/sec | 699.1 MBytes/sec |
| Physics | 3101 Frames/sec | 2450 Frames/sec |
| Extended instructions | 46B Matrices/sec | 51.2B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 15.2 PPW | 24.5 PPW |
| Geekbench 6 Multi / Watt | 164 PPW | 237.7 PPW |
| Passmark CPU Mark / Watt | 464.7 PPW | 718.9 PPW |
| Blender / Watt | 4.24 PPW | 6.3 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
Intel Core i9 13900K
| Date | Benchmark | Result |
|---|---|---|
| π 2026-09-27 (Marcus Kuronen) | Cinebench 2026 | 645 / 7225 |
| π 2026-07-11 (Nagambie) | Cinebench 2026 | 673 / 8146 |
| π 2026-05-09 (veshelya) | Cinebench 2024 | 133 / 941 |
| π 2026-03-23 (Rohit007) | Cinebench 2024 | 124 / 1906 |
| π 2025-11-09 (LieInMyEyes) | Cinebench 2024 | 126 / 1771 |
AMD Ryzen 9 7945HX
| Date | Benchmark | Result |
|---|---|---|
| π 2025-11-02 (Qwerrty574) | Geekbench 6 CPU | 2949 / 17981 |
| π 2025-11-02 (Qwerrty574) | Cinebench 2024 | 116 / 1901 |
| π 2025-04-02 (ceratogyrus35) | Cinebench 2024 | 114 / 1834 |
| π 2025-02-18 (Baka) | Cinebench 2024 | 112 / 1552 |
Specifications
Full technical specification of Intel Core i9 13900K and AMD Ryzen 9 7945HXGeneral
| Vendor | Intel | Amd |
| Released | September 27, 2022 | January 4, 2023 |
| Type | Desktop | Laptop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Raptor Lake | Zen 4 (Dragon Range) |
| Model number | i9-13900K | - |
| Integrated GPU | UHD Graphics 770 | Radeon 610M |
| Rival Equivalent | - AMD Ryzen 9 7900X | - Intel Core i9 13950HX |
| Successor | - Intel Core Ultra 9 285K | - |
Intel CPU rating (#14th place)
AMD Ryzen CPU ranking (#24th place)
CPU
| P-Cores | 8 | 16 |
| P-Threads | 16 | 32 |
| Base Frequency (P) | 3.0 GHz | 2.5 GHz |
| Turbo Boost Frequency (P) | 5.4 GHz | 5.4 GHz |
| E-Cores | 16 | - |
| E-Threads | 16 | - |
| Base Frequency (E) | 2.2 GHz | - |
| Turbo Boost Frequency (E) | 4.3 GHz | - |
| Total Cores | 24 | 16 |
| Total Threads | 32 | 32 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 30x | 25x |
| L1 Cache | 80K (per core) | 64K (per core) |
| L2 Cache | 2MB (per core) | 1MB (per core) |
| L3 Cache | 36MB (shared) | 64MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Package
| Transistors | - | 13.1 billions |
| Fabrication Process | 10 nm | 5 nm |
| TDP (PL1) | 125 W | 55-75 W (configurable) |
| Max. Boost TDP (PL2) | 253 W | - |
| Socket | LGA-1700 | FL1 |
| Peak Temperature | 100Β°C | 100Β°C |
Desktop CPU ranking (#21st place)
Laptop processors ranking (#38th place)
iGPU
| Integrated Graphics | Intel UHD Graphics 770 | Radeon 610M |
| GPU Base Clock | 300 MHz | 400 MHz |
| GPU Boost Clock | 1650 MHz | 2200 MHz |
| Shading Units | 256 | 128 |
| TMUs | 16 | 8 |
| ROPs | 8 | 4 |
| Execution Units | 32 | 2 |
| TGP | 15 W | 15 W |
iGPU FLOPS
More info: Radeon 610M compared to UHD Graphics 770
Memory Support
| Memory Types | - DDR5-5600 - DDR4-3200 |
- DDR5-5200 |
| Max. Memory Size | 192 GB | 64 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 89.6 GB/s | - |
| ECC Support | Yes | No |
Misc
| Official Site | Intel Core i9 13900K official page | AMD Ryzen 9 7945HX official page |
| PCI Express Version | 5.0 | 5.0 |
| PCI Express Lanes | 20 | 28 |
Cast your vote
Total votes: 68