Side by side comparison and review of AMD Ryzen 9 3900X and AMD Ryzen 7 5800X. 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 9 3900X | AMD Ryzen 7 5800X |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Ryzen 9 3900X | AMD Ryzen 7 5800X |
|---|
| Type | AMD Ryzen 9 3900X | AMD Ryzen 7 5800X |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket AM4 | Socket AM4 |
| Manufacturing Process | 7 nm | 7 nm |
| Thermal Design Power | 105 W | 105 W |
| PCI Express Revision | 4.0 | 4.0 |
| PCI Express Lanes Qty | 16 | - |
| Architecture Features | - | AMD Ryzen Master Utility, AMD Ryzen VR-Ready Premium, AMD StoreMI Technology |
| PERFORMANCE |
|---|
| Number of Cores | 12-core | 8-core |
|---|---|---|
| Number of Threads | 24 threads | 16 threads |
| Clock Speed (Frequency) | 3.8 GHz | 3.8 GHz |
| Max Turbo Speed | 4.6 GHz | 4.7 GHz |
| CACHE MEMORY |
|---|
| Cache | 64 MB | 32 MB |
|---|---|---|
| Cache Memory Details | L3 - 64 MB L2 - 6 MB L1 - 768 KB |
L2 - 4 MB L3 - 32 MB |
| MISCELLANEOUS | AMD Ryzen 9 3900X | AMD Ryzen 7 5800X |
|---|
| Included Accessories | AMD Wraith Prism with RGB LED | - |
|---|---|---|
| Service & Support | Limited warranty - parts and labour - 3 years | Limited warranty - parts and labour - 3 years |
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