Side by side comparison and review of Intel Core i9 7940X X-series (7th Gen) and Intel Core i9 9900T (9th 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 9900T (9th Gen) |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 9900T (9th Gen) |
|---|
| Type | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 9900T (9th Gen) |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2066 Socket | LGA1151 Socket |
| Manufacturing Process | - | 14 nm |
| Thermal Design Power | 165 W | 35 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 | 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 Identity Protection Technology, Intel Secure Key, Intel Advanced Vector Extensions 2 (AVX2.0), Intel TSX-NI, Intel Stable Image Platform Program (SIPP), Intel OS Guard, Intel Software Guard Extensions (SGX), Intel Memory Protection Extensions (MPX), Intel Optane Memory Supported, Intel Boot Guard |
| PERFORMANCE |
|---|
| Number of Cores | 14-core | 8-core |
|---|---|---|
| Number of Threads | 28 threads | 16 threads |
| Clock Speed (Frequency) | 3.1 GHz | 2.1 GHz |
| Max Turbo Speed | 4.3 GHz | 4.4 GHz |
| CACHE MEMORY |
|---|
| Cache | 19.25 MB | 16 MB |
|---|---|---|
| Cache Memory Details | L3 - 19.25 MB | Smart Cache - 16 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Core i9 7940X X-series (7th Gen) | Intel Core i9 9900T (9th Gen) |
|---|
| Type | - | Intel UHD Graphics 630 |
|---|---|---|
| Base Frequency | - | 350 MHz |
| Max Dynamic Frequency | - | 1.2 GHz |
| Max Supported Memory Size | - | 64 GB |
| Max Supported Resolution | - | 4096x2304@24Hz (HDMI), 4096x2304@60Hz (eDP), 4096x2304@60Hz (DP) |
| Features | - | Intel Clear Video Technology, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Triple Display Capable |
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