AMD Ryzen 9 Pro 9945 vs Ryzen 9 9900X
77
out of 100
VS
85
out of 100
We compared two 12-core desktop CPUs: the 3.4 GHz AMD Ryzen 9 Pro 9945 against the 4.4 GHz Ryzen 9 9900X. 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 DeviceFacts 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 AMD Ryzen 9 Pro 9945
- Newer - released 1 year and 8 months later
Advantages of AMD Ryzen 9 9900X
- 4% higher Turbo Boost frequency (5.6 GHz vs 5.4 GHz)
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
| Cinebench 2026 (Single) | - | 763 |
| Cinebench 2026 (Multi) | - | 7580 |
Cinebench Scores (105th and 42nd place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1320 MB/sec | 1510 MB/sec |
| Clang compilation | 157.1 Klines/sec | 191.4 Klines/sec |
| HTML 5 Browser | 254.3 pages/sec | 361.8 pages/sec |
| PDF Renderer | 457.4 Mpixels/sec | 534 Mpixels/sec |
| Text processing | 351.6 pages/sec | 350.5 pages/sec |
| Background blur | 68.2 images/sec | 82.7 images/sec |
| Photo processing | 98.8 images/sec | 118.4 images/sec |
| Ray tracing | 35.4 Mpixels/sec | 45.5 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 171.2 GOps/sec | 180.5 GOps/sec |
| Floating point math | 107.3 GOps/sec | 119.7 GOps/sec |
| Find prime numbers | 342M Primes/sec | 432M Primes/sec |
| Random string sorting | 62.5M Strings/sec | 71.4M Strings/sec |
| Data encryption | 30.5 GBytes/sec | 33.3 GBytes/sec |
| Data compression | 580 MBytes/sec | 678.8 MBytes/sec |
| Physics | 2902 Frames/sec | 3330 Frames/sec |
| Extended instructions | 44.4B Matrices/sec | 54.8B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 18.9 PPW | 15.1 PPW |
| Geekbench 6 Multi / Watt | 249.3 PPW | 162.9 PPW |
| Passmark CPU Mark / Watt | 748.7 PPW | 452.7 PPW |
| Blender / Watt | - | 3.79 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
AMD Ryzen 9 Pro 9945
No benchmark results yet
AMD Ryzen 9 9900X
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-06-20 (Alenaes) | Cinebench 2026 | 773 / 7971 |
| 📘 2026-06-04 (Alenaes) | Cinebench 2024 | 139 / 1841 |
| 📘 2026-06-04 (Alenaes) | Cinebench 2026 | 763 / 7580 |
| 📘 2026-05-01 (PLL) | Cinebench 2024 | 137 / 1853 |
| 📘 2026-04-03 (freziontechno) | Cinebench 2026 | 759 / 7584 |
Specifications
Full technical specification of AMD Ryzen 9 Pro 9945 and Ryzen 9 9900XGeneral
| Vendor | Amd | Amd |
| Released | January 5, 2026 | June 3, 2024 |
| Type | Desktop | Desktop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Zen 5 (Granite Ridge) | Zen 5 (Granite Ridge) |
| Model number | 9945 | - |
| Integrated GPU | Radeon Graphics | Radeon Graphics |
| Rival Equivalent | - | - Intel Core i9 14900K |
AMD Ryzen CPU ranking (15th and 6th place)
CPU
| P-Cores | 12 | 12 |
| P-Threads | 24 | 24 |
| Base Frequency (P) | 3.4 GHz | 4.4 GHz |
| Turbo Boost Frequency (P) | 5.4 GHz | 5.6 GHz |
| Total Cores | 12 | 12 |
| Total Threads | 24 | 24 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 34x | 44x |
| L1 Cache | 80K (per core) | 80K (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 | 4 nm |
| TDP (PL1) | 65 W | 120 W |
| Max. Boost TDP (PL2) | - | 162 W |
| Socket | AM5 | AM5 |
| Peak Temperature | 95°C | 95°C |
Desktop CPU ranking (29th and 15th place)
iGPU
| Integrated Graphics | Radeon Graphics | Radeon Graphics |
| 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 | - DDR5-5600 |
| Max. Memory Size | 192 GB | 192 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 89.6 GB/s | 89.6 GB/s |
| ECC Support | Yes | Yes |
Misc
| Official Site | AMD Ryzen 9 Pro 9945 official page | AMD Ryzen 9 9900X official page |
| PCI Express Version | 5.0 | 5.0 |
| PCI Express Lanes | 28 | 28 |
Cast your vote
Total votes: < 1