AMD Ryzen 9 7900 vs Ryzen 7 7800X3D
We compared two desktop CPUs: the 3.7 GHz AMD Ryzen 9 7900 with 12-cores against the 4.2 GHz Ryzen 7 7800X3D 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
NanoReview Final Score
Generic CPU rating
The "iGPU" and "Power Efficiency" have a minor impact on the NanoReview Score when comparing desktop CPUs.
Key Differences
Advantages of AMD Ryzen 9 7900
- Has 4 more physical cores
- More than 6° C higher critical temperature
- 8% higher Turbo Boost frequency (5.4 GHz vs 5 GHz)
Advantages of AMD Ryzen 7 7800X3D
- Has 32768 KB larger L3 cache size
Promotion
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench R23
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1670 MB/sec | 1770 MB/sec |
| Clang compilation | 170.3 Klines/sec | 114.7 Klines/sec |
| HTML 5 Browser | 338.4 pages/sec | 338.9 pages/sec |
| PDF Renderer | 478.7 Mpixels/sec | 422.4 Mpixels/sec |
| Text processing | 295.3 pages/sec | 257.2 pages/sec |
| Background blur | 70.4 images/sec | 66.2 images/sec |
| Photo processing | 114.2 images/sec | 113.7 images/sec |
| Ray tracing | 37.5 Mpixels/sec | 24.7 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 167.4 GOps/sec | 104.4 GOps/sec |
| Floating point math | 99.3 GOps/sec | 62.2 GOps/sec |
| Find prime numbers | 373M Primes/sec | 331M Primes/sec |
| Random string sorting | 73.1M Strings/sec | 47.5M Strings/sec |
| Data encryption | 35.4 GBytes/sec | 22.5 GBytes/sec |
| Data compression | 585.5 MBytes/sec | 387.1 MBytes/sec |
| Physics | 3122 Frames/sec | 3573 Frames/sec |
| Extended instructions | 42.4B Matrices/sec | 29.3B Matrices/sec |
Value for money
Enter the current prices of the CPUs and click "Calculate" to determine which one has a better value-to-performance ratio.
Specifications
Full technical specification of AMD Ryzen 9 7900 and Ryzen 7 7800X3DGeneral
| Vendor | AMD | AMD |
| Released | January 10, 2023 | January 4, 2023 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Zen 4 (Raphael) | Zen 4 (Raphael) |
| Integrated GPU | Radeon Graphics (Ryzen 7000) | Radeon Graphics (Ryzen 7000) |
CPU
| P-Cores | 12 | 8 |
| P-Threads | 24 | 16 |
| Base Frequency (P) | 3.7 GHz | 4.2 GHz |
| Turbo Boost Frequency (P) | 5.4 GHz | 5 GHz |
| Total Cores | 12 | 8 |
| Total Threads | 24 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 37x | 42x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 1MB (per core) | 1MB (per core) |
| L3 Cache | 64MB (shared) | 96MB (shared) |
| Unlocked Multiplier | Yes | - |
Package
| Transistors | 13.1 billions | 13.1 billions |
| Fabrication process | 5 nm | 5 nm |
| TDP (PL1) | 65 W | 120 W |
| Max. Boost TDP (PL2) | 142 W | 162 W |
| Socket | AM5 | AM5 |
| Peak temperature | 95°C | 89°C |
iGPU
| Integrated Graphics | Radeon Graphics (Ryzen 7000) | Radeon Graphics (Ryzen 7000) |
| GPU Base Clock | 1500 MHz | 1500 MHz |
| GPU Boost Clock | 2200 MHz | 2200 MHz |
| Shading Units | 448 | 448 |
| TMUs | 8 | 8 |
| ROPs | 4 | 4 |
| Execution Units | 2 | 2 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory types | - DDR5-5200 | - DDR5-5200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| ECC Support | Yes | Yes |
Misc
| Official site | AMD Ryzen 9 7900 official page | AMD Ryzen 7 7800X3D official page |
| PCI Express Version | 5.0 | 5.0 |
| PCI Express Lanes | 28 | 28 |
Cast your vote
Total votes: 64