Intel Core i9-7940X vs Intel Core i9-7900X
Comparative analysis of Intel Core i9-7940X and Intel Core i9-7900X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.
Differences
Reasons to consider the Intel Core i9-7940X
- CPU is newer: launch date 3 month(s) later
- 4 more cores, run more applications at once: 14 vs 10
- 8 more threads: 28 vs 20
- Around 7% higher maximum core temperature: 102°C vs 95°C
- Around 40% more L1 cache; more data can be stored in the L1 cache for quick access later
- 5.6x more L2 cache, more data can be stored in the L2 cache for quick access later
- Around 39% more L3 cache; more data can be stored in the L3 cache for quick access later
- Around 23% better performance in PassMark - CPU mark: 25987 vs 21175
- Around 2% better performance in Geekbench 4 - Single Core: 1153 vs 1129
- Around 26% better performance in Geekbench 4 - Multi-Core: 12928 vs 10300
- Around 57% better performance in 3DMark Fire Strike - Physics Score: 10950 vs 6987
| Specifications (specs) | |
| Launch date | September 2017 vs 30 May 2017 |
| Number of cores | 14 vs 10 |
| Number of threads | 28 vs 20 |
| Maximum core temperature | 102°C vs 95°C |
| L1 cache | 64 KB (per core) vs 64 KB (per core) |
| L2 cache | 1024 KB (per core) vs 256 KB (per core) |
| L3 cache | 19712 KB (shared) vs 13.8 MB |
| Benchmarks | |
| PassMark - CPU mark | 25987 vs 21175 |
| Geekbench 4 - Single Core | 1153 vs 1129 |
| Geekbench 4 - Multi-Core | 12928 vs 10300 |
| 3DMark Fire Strike - Physics Score | 10950 vs 6987 |
Reasons to consider the Intel Core i9-7900X
- Around 18% lower typical power consumption: 140 Watt vs 165 Watt
- Around 3% better performance in PassMark - Single thread mark: 2568 vs 2491
| Specifications (specs) | |
| Thermal Design Power (TDP) | 140 Watt vs 165 Watt |
| Benchmarks | |
| PassMark - Single thread mark | 2568 vs 2491 |
Compare benchmarks
CPU 1: Intel Core i9-7940X
CPU 2: Intel Core i9-7900X
| PassMark - Single thread mark |
|
|
||||
| PassMark - CPU mark |
|
|
||||
| Geekbench 4 - Single Core |
|
|
||||
| Geekbench 4 - Multi-Core |
|
|
||||
| 3DMark Fire Strike - Physics Score |
|
|
| Name | Intel Core i9-7940X | Intel Core i9-7900X |
|---|---|---|
| PassMark - Single thread mark | 2491 | 2568 |
| PassMark - CPU mark | 25987 | 21175 |
| Geekbench 4 - Single Core | 1153 | 1129 |
| Geekbench 4 - Multi-Core | 12928 | 10300 |
| 3DMark Fire Strike - Physics Score | 10950 | 6987 |
Compare specifications (specs)
| Intel Core i9-7940X | Intel Core i9-7900X | |
|---|---|---|
Essentials |
||
| Architecture codename | Skylake | Skylake |
| Launch date | September 2017 | 30 May 2017 |
| Launch price (MSRP) | $1,399 | $1,050 |
| Place in performance rating | 746 | 946 |
| Price now | $1,129.99 | $1,383.99 |
| Processor Number | i9-7940X | i9-7900X |
| Series | Intel® Core™ X-series Processors | Intel® Core™ X-series Processors |
| Status | Launched | Launched |
| Value for money (0-100) | 6.63 | 4.68 |
| Vertical segment | Desktop | Desktop |
Performance |
||
| 64 bit support | ||
| Base frequency | 3.10 GHz | 3.30 GHz |
| Bus Speed | 8 GT/s DMI3 | 8 GT/s DMI3 |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 1024 KB (per core) | 256 KB (per core) |
| L3 cache | 19712 KB (shared) | 13.8 MB |
| Manufacturing process technology | 14 nm | 14 nm |
| Maximum core temperature | 102°C | 95°C |
| Maximum frequency | 4.30 GHz | 4.30 GHz |
| Number of cores | 14 | 10 |
| Number of QPI Links | 0 | 0 |
| Number of threads | 28 | 20 |
| Unlocked | ||
| Maximum case temperature (TCase) | 72 °C | |
Memory |
||
| Max memory channels | 4 | 4 |
| Maximum memory size | 128 GB | 128 GB |
| Supported memory types | DDR4-2666 | DDR4-2666 |
Compatibility |
||
| Low Halogen Options Available | ||
| Max number of CPUs in a configuration | 1 | 1 |
| Sockets supported | FCLGA2066 | FCLGA2066 |
| Thermal Design Power (TDP) | 165 Watt | 140 Watt |
| Thermal Solution | PCG 2017X | PCG 2017X |
Peripherals |
||
| Max number of PCIe lanes | 44 | 44 |
| PCI Express revision | 3.0 | 3.0 |
| Scalability | 1S Only | 1S Only |
Security & Reliability |
||
| Execute Disable Bit (EDB) | ||
| Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
||
| Enhanced Intel SpeedStep® technology | ||
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| Intel 64 | ||
| Intel® Advanced Vector Extensions (AVX) | ||
| Intel® AES New Instructions | ||
| Intel® Hyper-Threading technology | ||
| Intel® Optane™ Memory Supported | ||
| Intel® Turbo Boost technology | ||
| Number of AVX-512 FMA Units | 2 | 2 |
| Intel® vPro™ Platform Eligibility | ||
Virtualization |
||
| Intel® Virtualization Technology (VT-x) | ||
| Intel® Virtualization Technology for Directed I/O (VT-d) | ||
| AMD Virtualization (AMD-V™) | ||
Navigation
Choose a CPU
Compare processors
Compare Intel Core i9-7940X with others
IntelCore i9-7940X vs
IntelCore 2 Extreme QX9770
IntelCore i9-7940X vs
IntelCore i5-2450P
IntelCore i9-7940X vs
AMDRyzen Threadripper 1920
IntelCore i9-7940X vs
AMDRyzen 3 PRO 4200G
IntelCore i9-7940X vs
AMDRyzen 5 5500
IntelCore i9-7940X vs
IntelCore i3-12100F
