Processor comparison
AMD Ryzen 7 3800XT vs AMD Ryzen 9 3900X
AMD
AMD Ryzen 7 3800XT
AMD Socket AM4
3800 MHz
8 cores
unknown
DESKTOP
VS
AMD
AMD Ryzen 9 3900X
AMD Socket AM4
3800 MHz
12 cores
Dec 2019
DESKTOP
Summary
Synthetic performance index
- AMD Ryzen 7 3800XT100%
- AMD Ryzen 9 3900X118%
Relative performance
Single thread performance index
- AMD Ryzen 7 3800XT104%
- AMD Ryzen 9 3900X100%
Relative performance
Multi thread performance index
- AMD Ryzen 7 3800XT100%
- AMD Ryzen 9 3900X142%
Relative performance
Reasons to consider the AMD Ryzen 7 3800XT
Reasons to consider the AMD Ryzen 9 3900X
- Much higher multi threaded performance (around 42% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.
Gaming
No clear winner declared
Productivity
HWSpot recommends the AMD Ryzen 9 3900X
Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.
Specifications
Features
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| MMX | | |
| SSE | | |
| SSE2 | | |
| SSE3 | | |
| SSSE3 | | |
| SSE4A | | |
| SSE4.1 | | |
| SSE4.2 | | |
| AES | | |
| AVX | | |
| AVX2 | | |
| BMI1 | | |
| BMI2 | | |
| SHA | | |
| F16C | | |
| FMA3 | | |
| AMD64 | | |
| EVP | | |
| AMD-V | | |
| SMAP | | |
| SMEP | | |
| SMT | | |
| Precision Boost 2 | | |
| XFR 2 | | |
Architecture
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| Architecture | AMD Zen 2 | AMD Zen 2 |
| Market | Desktop | Desktop |
| Memory Support | DDR4-3200 MHz
Dual-channel | DDR4 |
| Codename | Matisse | Zen 2 |
| Release Date | unknown | Dec 2019 |
Cores
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| Cores | 8 | 12 |
| Threads | 16 | 24 |
| SMPs | 1 | 1 |
| Integrated Graphics | No | No |
Cache
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| L1 Cache | 96K (per core) | 96K (per core) |
| L2 Cache | 512K (per core) | 512K (per core) |
| L3 Cache | 32MB | 64MB |
Physical
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| Socket | AMD Socket AM4 | AMD Socket AM4 |
| Max Case Temp | 95°C | unknown |
| Package | µOPGA-1331 | |
| Die Size | 74mm² | unknown |
| Process | 7 nm | 7 nm |
Performance
| AMD Ryzen 7 3800XT | AMD Ryzen 9 3900X |
|---|
| Cpu Frequency | 3800 MHz | 3800 MHz |
| Turbo Clock | 4700 MHz | 4600 MHz |
| Base Clock | 100 MHz | 100 MHz |
| Voltage | N/A | variable |
| TDP | 105 W | 125 W |
Raw performance index
Raw single-thread performance estimation
- AMD Ryzen 7 3800XT5264 points
- AMD Ryzen 9 3900X5152 points
Points - higher is better
Raw multi-thread performance estimation
- AMD Ryzen 7 3800XT41538 points
- AMD Ryzen 9 3900X62307 points
Points - higher is better
Synthetic benchmarks
Cinebench R15 CPU Single 64Bit
- AMD Ryzen 7 3800XT216
- AMD Ryzen 9 3900X206
points - higher is better
Cinebench R15 CPU Multi 64Bit
- AMD Ryzen 7 3800XT (simulated)2217.72
- AMD Ryzen 9 3900X3159
points - higher is better