In depth comparison and review of Intel Core i9 7940X X-series (7th Gen) and AMD EPYC 7543. 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 7940X X-series (7th Gen) | AMD EPYC 7543 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Core i9 7940X X-series (7th Gen) | AMD EPYC 7543 |
|---|
| Type | Intel Core i9 7940X X-series (7th Gen) | AMD EPYC 7543 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2066 Socket | Socket SP3 |
| Thermal Design Power | 165 W | 225 W |
| Thermal Specification | 102 °C | - |
| PCI Express Revision | 3.0 | 4.0 |
| PCI Express Lanes Qty | 44 | 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), Intel Virtualization Technology for Directed I/O (VT-d), Intel Advanced Vector Extensions 2 (AVX2.0), Intel Turbo Boost Max Technology 3.0, Intel Optane Memory Supported | AMD Infinity Architecture, AMD Infinity Guard |
| PERFORMANCE |
|---|
| Number of Cores | 14-core | 32-core |
|---|---|---|
| Number of Threads | 28 threads | 64 threads |
| Clock Speed (Frequency) | 3.1 GHz | 2.8 GHz |
| Max Turbo Speed | 4.3 GHz | 3.7 GHz |
| Bus Speed | - | 3200 MHz |
| CACHE MEMORY |
|---|
| Cache | 19.25 MB | 256 MB |
|---|---|---|
| Cache Memory Details | L3 - 19.25 MB | L3 - 256 MB |
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