Side by side comparison and review of AMD Athlon II X4 845 and AMD Ryzen 7 3800X. 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 Athlon II X4 845 | AMD Ryzen 7 3800X |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Athlon II X4 845 | AMD Ryzen 7 3800X |
|---|
| Type | AMD Athlon II X4 845 | AMD Ryzen 7 3800X |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket FM2+ | Socket AM4 |
| Manufacturing Process | 28 nm | 7 nm |
| Thermal Design Power | 65 W | 105 W |
| Thermal Specification | 71.3 °C | - |
| PCI Express Revision | - | 4.0 |
| PCI Express Lanes Qty | - | 16 |
| Architecture Features | AMD Virtualization | - |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | 8-core |
|---|---|---|
| Number of Threads | 4 threads | 16 threads |
| Clock Speed (Frequency) | 3.5 GHz | 3.9 GHz |
| Max Turbo Speed | 3.8 GHz | 4.5 GHz |
| CACHE MEMORY |
|---|
| Cache | 2 MB | 32 MB |
|---|---|---|
| Cache Memory Details | L2 - 2 MB | L3 - 32 MB L2 - 4 MB |
| MISCELLANEOUS | AMD Athlon II X4 845 | AMD Ryzen 7 3800X |
|---|
| Included Accessories | Near Silent Thermal Solution | AMD Wraith Prism |
|---|---|---|
| Compliant Standards | AES | - |
| Service & Support | - | Limited warranty - parts and labour - 3 years |
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