Side by side comparison and review of AMD Ryzen 7 3800XT and AMD Ryzen 9 7900. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.
| GENERAL | AMD Ryzen 7 3800XT | AMD Ryzen 9 7900 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Ryzen 7 3800XT | AMD Ryzen 9 7900 |
|---|
| Type | AMD Ryzen 7 3800XT | AMD Ryzen 9 7900 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket AM4 | Socket AM5 |
| Manufacturing Process | 7 nm | 5 nm |
| Thermal Design Power | 105 W | 65 W |
| Thermal Specification | - | 95 °C |
| PCI Express Revision | 4.0 | 5.0 |
| PCI Express Lanes Qty | - | 28 |
| Architecture Features | "Zen" Core Architecture, AMD Ryzen Master Utility, AMD StoreMI Technology | AMD Ryzen Master Utility, AMD EXPO Technology, AMD RyzenTechnologies, "Zen 4" Core Architecture |
| PERFORMANCE |
|---|
| Number of Cores | 8-core | 12-core |
|---|---|---|
| Number of Threads | 16 threads | 24 threads |
| Clock Speed (Frequency) | 3.9 GHz | 3.7 GHz |
| Max Turbo Speed | 4.7 GHz | 5.4 GHz |
| CACHE MEMORY |
|---|
| Cache | - | 64 MB |
|---|---|---|
| Cache Memory Details | L2 - 4 MB L3 - 32 MB |
L1 - 768 KB L2 - 12 MB L3 - 64 MB |
| INTEGRATED GRAPHICS (GPU) | AMD Ryzen 7 3800XT | AMD Ryzen 9 7900 |
|---|
| Type | - | Radeon Graphics |
|---|---|---|
| Base Frequency | - | 400 MHz |
| Max Dynamic Frequency | - | 2.2 GHz |
| MISCELLANEOUS | AMD Ryzen 7 3800XT | AMD Ryzen 9 7900 |
|---|
| Included Accessories | - | AMD Wraith Prism |
|---|---|---|
| Service & Support | - | Limited warranty - parts and labour - 3 years |
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