In depth comparison and review of AMD Ryzen 9 3900 and AMD Ryzen 7 Pro 7745. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | AMD Ryzen 9 3900 | AMD Ryzen 7 Pro 7745 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Ryzen 9 3900 | AMD Ryzen 7 Pro 7745 |
|---|
| Type | AMD Ryzen 9 3900 | AMD Ryzen 7 Pro 7745 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket AM4 | Socket AM5 |
| Manufacturing Process | 7 nm | 5 nm |
| Thermal Design Power | 65 W | 65 W |
| Thermal Specification | 95 °C | 95 °C |
| PCI Express Revision | 4.0 | 5.0 |
| PCI Express Lanes Qty | - | 28 |
| Architecture Features | AMD GuardMI Technology, AMD Memory Guard, DASH 1.2 enabled | "Zen 4" Core Architecture, AMD PRO technologies |
| PERFORMANCE |
|---|
| Number of Cores | 12-core | 8-core |
|---|---|---|
| Number of Threads | 24 threads | 16 threads |
| Clock Speed (Frequency) | 3.1 GHz | 3.8 GHz |
| Max Turbo Speed | 4.3 GHz | 5.3 GHz |
| CACHE MEMORY |
|---|
| Cache | 64 MB | 32 MB |
|---|---|---|
| Cache Memory Details | L1 - 768 KB L2 - 6 MB L3 - 64 MB |
L3 - 32 MB L2 - 8 MB L1 - 512 KB |
| INTEGRATED GRAPHICS (GPU) | AMD Ryzen 9 3900 | AMD Ryzen 7 Pro 7745 |
|---|
| Type | - | Radeon Graphics |
|---|---|---|
| Max Dynamic Frequency | - | 2200 MHz |
| MISCELLANEOUS | AMD Ryzen 9 3900 | AMD Ryzen 7 Pro 7745 |
|---|
| Included Accessories | - | AMD Wraith Spire Cooler |
|---|---|---|
| Service & Support | - | Limited warranty - parts and labour - 3 years |
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