Intel Core i9-9900K vs Intel Core i7-7800X
Summary
Intel Core i9-9900K
136%
Intel Core i7-7800X
100%
Relative performance
Intel Core i9-9900K
117%
Intel Core i7-7800X
100%
Relative performance
Intel Core i9-9900K
155%
Intel Core i7-7800X
100%
Relative performance
Reasons to consider Intel Core i9-9900K |
| 17% higher single threaded performance. |
| Much higher multi threaded performance (around 55% higher). This allows for higher performance in professional applications like encoding or heavy multitasking. |
| 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 36% higher average synthetic performance. |
Reasons to consider Intel Core i7-7800X |
| None |
Gaming
HWBench recommends Intel Core i9-9900K
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
HWBench recommends Intel Core i9-9900K
Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.
Features
| Intel Core i9-9900K | | 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 i9-9900K | | Intel Core i7-7800X | |
|---|
| Architecture | Intel_Coffelake | vs | Intel_Kabylake |
| Market | Desktop | vs | Desktop |
| Memory Support | DDR4 | vs | DDR4 |
| Codename | Coffee Lake | vs | Skylake-X |
| Release Date | Sep 2018 | vs | Jun 2017 |
Cores
| Intel Core i9-9900K | | Intel Core i7-7800X | |
|---|
| Cores | 8 | vs | 6 |
| Threads | 16 | vs | 12 |
| SMPs | 1 | vs | 1 |
| Integrated Graphics | UHD Graphics 630 | vs | No |
Cache
| Intel Core i9-9900K | | Intel Core i7-7800X | |
|---|
| L1 Cache | 64 KB (per core) | vs | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | vs | 256 KB (per core) |
| L3 Cache | 16896 KB (shared) | vs | 8448 KB (shared) |
Physical
| Intel Core i9-9900K | | Intel Core i7-7800X | |
|---|
| Socket | Intel Socket 1151 | vs | Intel Socket 2066 |
| Max Case Temp | 72°C | vs | 72°C |
| Package | FC-LGA14C | vs | FC-LGA2066 |
| Die Size | unknown | vs | 308mm² |
| Process | 14 nm | vs | 14 nm |
Performance
| Intel Core i9-9900K | | Intel Core i7-7800X | |
|---|
| Cpu Frequency | 3600 MHz | vs | 3500 MHz |
| Turbo Clock | 5000 MHz | vs | 4000 MHz |
| Base Clock | 100 MHz | vs | 100 MHz |
| Voltage | unknown | vs | unknown |
| TDP | 95 W | vs | 140 W |
Intel Core i9-9900K
6000 points
Intel Core i7-7800X
4800 points
Points - higher is better
Intel Core i9-9900K
41472 points
Intel Core i7-7800X
30240 points
Points - higher is better
Intel Core i9-9900K
2077
Intel Core i7-7800X
1333
points - higher is better
Intel Core i9-9900K
218
Intel Core i7-7800X
185
points - higher is better