Intel Core i9-9900K vs Intel Core i9-7940X
VS
Intel Core i9-9900K
Intel Core i9-7940X
Key Differences
Performance
Features
Miscellaneous
General info
Memory
Benchmarks
Intel Core i9-9900K
Intel Core i9-7940X
Key Differences
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| Cores | 8 | 14 |
| CPU Threads | 16 | 28 |
| Base Clock Speed | 3.6GHz | 3.1GHz |
| Turbo Clock Speed | 5GHz | 4.4GHz |
| TDP (THERMAL DESIGN POINT) | 95W | 165W |
| Has integrated graphics |  Yes
|
 No
|
| Performance per watt | 92.6 | Not Known |
Performance
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| CPU Speed & Cores | 8 x 3.6GHz | 14 x 3.1GHz |
| Number of CPU Threads | 16 | 28 |
| L2 Cache Size | 2MB | 14MB |
| L3 Cache Size | 16MB | 19.2MB |
| Turbo Boost Frequency | 5GHz | 4.4GHz |
| L1 Cache Size | 512KB | 448KB |
| L2 Core | 0.25MB/core | 1MB/core |
| Does it have an unlocked multiplier | Yes
|
Yes
|
| L3 Core | 2MB/core | 1.3MB/core |
| Uses ARM big.LITTLE tech | No
|
No
|
| Clock Multiplier | 36 | Not Known |
| Turbo Boost Tech Version | 2 | 3 |
| Uses ARM HMP | No
|
No
|
Features
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| Has AES Support | Yes
|
Yes
|
| Supports CPU Throttling | Yes
|
Yes
|
| Supported SSE Version | 4.2 | Not Known |
| Has AVX Support | Yes
|
Yes
|
| Has MMX Tech Support | Yes
|
No
|
| Has F16C Support | Yes
|
Yes
|
| Has FMA4 Instructions Support | No
|
No
|
| Has Multithreading Tech Support | Yes
|
Yes
|
| Has NX Processor Bit Support | Yes
|
Yes
|
| Has FMA3 Instructions Support | Yes
|
Yes
|
| Supports ARM TrustZone Tech | No
|
No
|
Miscellaneous
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| Height | 37.5mm | 51mm |
| Width Size | 37.5mm | 58.5mm |
General info
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| Has 64-bit Support | No Data Found | No Data Found |
| Semiconductor Size | 14nm | 14nm |
| GPU Base Clock Speed | 350MHz | Not Known |
| TDP (Thermal Design Point) | 95W | 165W |
| PCI Express Version | 3 | 3 |
| CPU Temperature | 100°C | Not Known |
| DirectX Version Info | 12 | Not Known |
| OpenGL Driver Version | 4.5 | Not Known |
| GPU Boost Clock Speed | 1200MHz | Not Known |
| No. of Supported Displays | 3 | Not Known |
| Height | 37.5mm | 51mm |
| Width Size | 37.5mm | 58.5mm |
| Does it have Integrated Graphics | Yes
|
No
|
| Supports Power Optimized L2 Cache | No
|
No
|
Memory
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| RAM Memory Speed | 2666MHz | 2666MHz |
| Max Memory Bandwidth | 41.6GB/s | Not Known |
| Max Memory Channels | 2 | 4 |
| Supported Memory Size | 128GB | Not Known |
| Bus Bandwidth | 8GT/s | Not Known |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
| DDR Type Memory Version | 4 | Not Known |
Benchmarks
|
Intel Core i9-9900K | Intel Core i9-7940X |
|---|---|---|
| PassMark Score | 18898 | Not Known |
| PassMark Score (Single Thread) | 2986 | Not Known |
| Geekbench 5 Score (Multi-Thread) | 8795 | Not Known |
| Cinebench R20 Score (Single Thread) | 518 | Not Known |
| Cinebench R20 Score (Multi-Thread) | 4995 | Not Known |
| Geekbench 5 Score (Single Thread) | 1336 | Not Known |
| Blender Score (bmw27) | 164.2seconds | Not Known |
| Blender Score (Classroom) | 544seconds | Not Known |
| PassMark Score (Overclocked) | 20704 | Not Known |
| CPU Performance (Per Watt) | 92.6 | Not Known |
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