In depth comparison and review of Intel Core 2 Quad Q8400 and AMD Ryzen 7 5800X3D. 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 | Intel Core 2 Quad Q8400 | AMD Ryzen 7 5800X3D |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Core 2 Quad Q8400 | AMD Ryzen 7 5800X3D |
|---|
| Type | Intel Core 2 Quad Q8400 | AMD Ryzen 7 5800X3D |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA775 Socket | Socket AM4 |
| Manufacturing Process | 45 nm | 7 nm |
| Thermal Design Power | 95 W | 105 W |
| Thermal Specification | 71.4 °C | 90 °C |
| PCI Express Revision | - | 4.0 |
| Architecture Features | Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Enhanced Halt State (C1E), Intel Thermal Monitor 2 | AMD Ryzen VR-Ready Premium, "Zen 3" Core Architecture, AMD 3D V-Cache technology, Windows 11 Gaming |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | 8-core |
|---|---|---|
| Number of Threads | - | 16 threads |
| Clock Speed (Frequency) | 2.66 GHz | 3.4 GHz |
| Max Turbo Speed | - | 4.5 GHz |
| Bus Speed | 1333 MHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 4 MB | 96 MB |
|---|---|---|
| Cache Memory Details | L2 - 4 MB | L3 - 96 MB L2 - 4 MB L1 - 512 KB |
| Installed Size | 4 MB | - |
| EXPANSION & CONNECTIVITY | Intel Core 2 Quad Q8400 | AMD Ryzen 7 5800X3D |
|---|
| Compatible Slots | 1 x processor - LGA775 Socket | - |
|---|
| MISCELLANEOUS | Intel Core 2 Quad Q8400 | AMD Ryzen 7 5800X3D |
|---|
| Service & Support | Limited warranty - 3 years | - |
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