Side by side comparison and review of Intel Core i9 7940X X-series (7th Gen) and Intel Core i9 10900KF (10th Gen). 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 | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 10900KF (10th Gen) |
|---|
| Product Type | Processor | Processor |
|---|
| DIMENSIONS |
|---|
| Height | - | 10.1 cm |
|---|---|---|
| Width | - | 4.4 cm |
| Depth | - | 11.6 cm |
| Weight | - | 87 g |
| PROCESSOR | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 10900KF (10th Gen) |
|---|
| Type | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 10900KF (10th Gen) |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2066 Socket | LGA1200 Socket |
| Manufacturing Process | - | 14 nm |
| Thermal Design Power | 165 W | 125 W |
| Thermal Specification | 102 °C | 100 °C |
| PCI Express Revision | 3.0 | 3.0 |
| PCI Express Configurations | - | 1x16, 2x8, 1x8+2x4 |
| PCI Express Lanes Qty | 44 | 16 |
| 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 | Intel Turbo Boost Max Technology 3.0, Intel Optane Memory Supported |
| PERFORMANCE |
|---|
| Number of Cores | 14-core | 10-core |
|---|---|---|
| Number of Threads | 28 threads | 20 threads |
| Clock Speed (Frequency) | 3.1 GHz | 3.7 GHz |
| Max Turbo Speed | 4.3 GHz | 5.3 GHz |
| Bus Speed | - | 8 GT/s |
| CACHE MEMORY |
|---|
| Cache | 19.25 MB | 20 MB |
|---|---|---|
| Cache Memory Details | L3 - 19.25 MB | Smart Cache - 20 MB |
| MISCELLANEOUS | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 10900KF (10th Gen) |
|---|
| Service & Support | - | Limited warranty - 3 years |
|---|
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