Processor comparison
Intel Core i7-9700K vs Intel Core i7-7800X
Intel
Intel Core i7-9700K
Intel Socket 1151
3600 MHz
8 cores
Sep 2018
DESKTOP
VS
Intel
Intel Core i7-7800X
Intel Socket 2066
3500 MHz
6 cores
Jun 2017
DESKTOP
Summary
Synthetic performance index
- Intel Core i7-9700K115%
- Intel Core i7-7800X100%
Relative performance
Single thread performance index
- Intel Core i7-9700K114%
- Intel Core i7-7800X100%
Relative performance
Multi thread performance index
- Intel Core i7-9700K115%
- Intel Core i7-7800X100%
Relative performance
Reasons to consider the Intel Core i7-9700K
- 14% higher single threaded performance.
- 15% higher multi threaded performance.
- 45 watts lower power draw.
- This is a newer product, it might have better application compatibility/performance (check features chart below).
- Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i7-7800X.
- Around 15% higher average synthetic performance.
Reasons to consider the Intel Core i7-7800X
Gaming
HWSpot recommends the Intel Core i7-9700K
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
No clear winner declared
Specifications
Features
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| MMX | | |
| SSE | | |
| SSE2 | | |
| SSE3 | | |
| SSSE3 | | |
| SSE4.2 | | |
| AVX | | |
| AVX2 | | |
| EIST | | |
| Intel 64 | | |
| XD bit | | |
| VT-x | | |
| VT-d | | |
| HTT | | |
| AES-NI | | |
| TSX | | |
| TXT | | |
| CLMUL | | |
| FMA3 | | |
| F16C | | |
| BMI1 | | |
| BMI2 | | |
| Boost 2.0 | | |
Architecture
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| Architecture | Intel_Coffelake | Intel_Kabylake |
| Market | Desktop | Desktop |
| Memory Support | DDR4 | DDR4 |
| Codename | Coffee Lake | Skylake-X |
| Release Date | Sep 2018 | Jun 2017 |
Cores
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| Cores | 8 | 6 |
| Threads | 8 | 12 |
| SMPs | 1 | 1 |
| Integrated Graphics | UHD Graphics 630 | No |
Cache
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| L1 Cache | 64 KB (per core) | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | 256 KB (per core) |
| L3 Cache | 12288 KB (shared) | 8448 KB (shared) |
Physical
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| Socket | Intel Socket 1151 | Intel Socket 2066 |
| Max Case Temp | 72°C | 72°C |
| Package | FC-LGA14C | FC-LGA2066 |
| Die Size | unknown | 308mm² |
| Process | 14 nm | 14 nm |
Performance
| Intel Core i7-9700K | Intel Core i7-7800X |
|---|
| Cpu Frequency | 3600 MHz | 3500 MHz |
| Turbo Clock | 4900 MHz | 4000 MHz |
| Base Clock | 100 MHz | 100 MHz |
| Voltage | unknown | unknown |
| TDP | 95 W | 140 W |
Raw performance index
Raw single-thread performance estimation
- Intel Core i7-9700K5880 points
- Intel Core i7-7800X4800 points
Points - higher is better
Raw multi-thread performance estimation
- Intel Core i7-9700K34560 points
- Intel Core i7-7800X30240 points
Points - higher is better
Synthetic benchmarks
Cinebench R15 CPU Multi 64Bit
- Intel Core i7-9700K1542
- Intel Core i7-7800X1333
points - higher is better
Cinebench R15 CPU Single 64Bit
- Intel Core i7-9700K212
- Intel Core i7-7800X185
points - higher is better