AMD Ryzen 9 3950X vs Ryzen 7 5800X3D
53
out of 100
VS
52
out of 100
We compared two desktop CPUs: the 3.5 GHz AMD Ryzen 9 3950X with 16-cores against the 3.4 GHz Ryzen 7 5800X3D 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
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 AMD Ryzen 9 3950X
- Has 8 more physical cores
- Unlocked multiplier
- 4% higher Turbo Boost frequency (4.7 GHz vs 4.5 GHz)
Advantages of AMD Ryzen 7 5800X3D
- Newer - released 2 years and 4 months later
- Has 32 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
- 19% faster in a single-core Geekbench v6 test - 2113 vs 1782 points
- Around 3.52 GB/s (7%) higher theoretical memory bandwidth
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (#84th place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 869 MB/sec | 1240 MB/sec |
| Clang compilation | 137.6 Klines/sec | 80.7 Klines/sec |
| HTML 5 Browser | 204.1 pages/sec | 227.7 pages/sec |
| PDF Renderer | 335.9 Mpixels/sec | 316.9 Mpixels/sec |
| Text processing | 145.8 pages/sec | 205.9 pages/sec |
| Background blur | 41.9 images/sec | 54.7 images/sec |
| Photo processing | 73.3 images/sec | 81.4 images/sec |
| Ray tracing | 30.4 Mpixels/sec | 19.9 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 132.8 GOps/sec | 88.2 GOps/sec |
| Floating point math | 77.8 GOps/sec | 50.1 GOps/sec |
| Find prime numbers | 173M Primes/sec | 230M Primes/sec |
| Random string sorting | 63.1M Strings/sec | 33.8M Strings/sec |
| Data encryption | 37.8 GBytes/sec | 20.2 GBytes/sec |
| Data compression | 587.6 MBytes/sec | 329.4 MBytes/sec |
| Physics | 1602 Frames/sec | 2875 Frames/sec |
| Extended instructions | 36.6B Matrices/sec | 22.6B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 13 PPW | 7.9 PPW |
| Geekbench 6 Multi / Watt | 108.3 PPW | 106.6 PPW |
| Passmark CPU Mark / Watt | 366.1 PPW | 269.4 PPW |
| Blender / Watt | 3.59 PPW | 2.02 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
AMD Ryzen 9 3950X
| Date | Benchmark | Result |
|---|---|---|
| π 2025-11-27 (Elizabeth) | Cinebench 2024 | 76 / 1398 |
| π 2025-07-18 (Maki) | Cinebench 2024 | 80 / 1370 |
AMD Ryzen 7 5800X3D
| Date | Benchmark | Result |
|---|---|---|
| π 2026-01-29 (3Dawe) | Cinebench 2024 | 92 / 858 |
| π 2025-12-30 -> vermilixn | Cinebench 2024 | 94 / 911 |
| π 2025-12-30 (vermilixn) | Cinebench 2024 | 94 / 911 |
| π 2025-11-02 (Homer35) | Cinebench 2024 | 94 / 901 |
| π 2025-10-24 (masuzo) | Cinebench 2024 | 90 / 808 |
Specifications
Full technical specification of AMD Ryzen 9 3950X and Ryzen 7 5800X3DGeneral
| Vendor | Amd | Amd |
| Released | November 25, 2019 | March 15, 2022 |
| Type | Desktop | Desktop |
| Instruction Set | x86-64 | x86-64 |
| Codename | - | Zen 3 (Vermeer) |
| Integrated GPU | No | No |
| Rival Equivalent | - Intel Core i9 9900K | - Intel Core i7 12700K |
| Successor | - | - AMD Ryzen 7 9800X3D |
AMD Ryzen CPU ranking (96th and 103rd place)
CPU
| P-Cores | 16 | 8 |
| P-Threads | 32 | 16 |
| Base Frequency (P) | 3.5 GHz | 3.4 GHz |
| Turbo Boost Frequency (P) | 4.7 GHz | 4.5 GHz |
| Total Cores | 16 | 8 |
| Total Threads | 32 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 35x | 34x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 512K (per core) | 512K (per core) |
| L3 Cache | 64MB (shared) | 96MB (shared) |
| Unlocked Multiplier | Yes | No |
Package
| Transistors | 3.8 billions | - |
| Fabrication Process | 7 nm | 7 nm |
| TDP (PL1) | 105 W | 105 W |
| Socket | AM4 | AM4 |
| Peak Temperature | - | 90Β°C |
Desktop CPU ranking (99th and 101st place)
Memory Support
| Memory Types | - DDR4-3200 | - DDR4-3200 - DDR4-2933 - DDR4-2667 |
| Max. Memory Size | 128 GB | 128 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 47.68 GB/s | 51.2 GB/s |
| ECC Support | Yes | Yes |
Misc
| Official Site | AMD Ryzen 9 3950X official page | AMD Ryzen 7 5800X3D official page |
| PCI Express Version | 4.0 | 4.0 |
| PCI Express Lanes | 16 | 20 |
Cast your vote
Total votes: 35