In depth comparison and review of Intel Core i9 13900K (13th Gen) and AMD EPYC 7643 (3rd Gen). 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 i9 13900K (13th Gen) | AMD EPYC 7643 (3rd Gen) |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Core i9 13900K (13th Gen) | AMD EPYC 7643 (3rd Gen) |
|---|
| Type | Intel Core i9 13900K (13th Gen) | AMD EPYC 7643 (3rd Gen) |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1700 Socket | Socket SP3 |
| Manufacturing Process | 7 nm | - |
| Thermal Design Power | 253 W | 225 W |
| Thermal Specification | 100 °C | - |
| PCI Express Revision | 4.0/5.0 | 4.0 |
| PCI Express Configurations | 1x16+1x4, 2x8+1x4 | - |
| PCI Express Lanes Qty | 20 | 128 |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Idle States, Intel VT-x with Extended Page Tables (EPT), Intel Secure Key, Intel Advanced Vector Extensions 2 (AVX2.0), Intel OS Guard, Intel Turbo Boost Max Technology 3.0, Intel Speed Shift Technology, Mode-based Execute Control (MBE), Intel Volume Management Device (VMD), Intel Boot Guard, Intel Thermal Velocity Boost, Intel Deep Learning Boost (DL Boost), Intel Control-Flow Enforcement Technology, Intel Gaussian and Neural Accelerator 3.0, Intel Thread Director, Instruction Set 64-bit, Intel Stable IT Platform Program (SIPP), Intel Standard Manageability (ISM), Intel Virtualization Technology with Redirect Protection (VT-rp) | AMD Infinity Architecture, AMD Infinity Guard |
| PERFORMANCE |
|---|
| Number of Cores | 24-core | 48-core |
|---|---|---|
| Number of Threads | 32 threads | 96 threads |
| Clock Speed (Frequency) | 3 GHz | 2.3 GHz |
| Max Turbo Speed | 5.8 GHz | 3.6 GHz |
| CACHE MEMORY |
|---|
| Cache | 36 MB | 256 MB |
|---|---|---|
| Cache Memory Details | Smart Cache - 36 MB L2 - 32 MB |
L3 - 256 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Core i9 13900K (13th Gen) | AMD EPYC 7643 (3rd Gen) |
|---|
| Type | Intel UHD Graphics 770 | - |
|---|---|---|
| Base Frequency | 300 MHz | - |
| Max Dynamic Frequency | 1.65 GHz | - |
| Max Supported Resolution | 5120x3200@120Hz (eDP), 7680x4320@60Hz (DP), 4096x2160@60Hz (HDMI) | - |
| Features | Intel Clear Video HD Technology, Intel Quick Sync Video, Quad Display Capable | - |
| MISCELLANEOUS | Intel Core i9 13900K (13th Gen) | AMD EPYC 7643 (3rd Gen) |
|---|
| Service & Support | Limited warranty - 3 years | - |
|---|
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