Intel Core i9-9900K vs Intel Core i9-7940X
Summary
Intel Core i9-9900K
100%
Intel Core i9-7940X
118%
Relative performance
Intel Core i9-9900K
112%
Intel Core i9-7940X
100%
Relative performance
Intel Core i9-9900K
100%
Intel Core i9-7940X
148%
Relative performance
Reasons to consider Intel Core i9-9900K |
12% higher single threaded performance. |
70 watts lower power draw. |
Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i9-7940X. |
Reasons to consider Intel Core i9-7940X |
Much higher multi threaded performance (around 48% higher). This allows for higher performance in professional applications like encoding or heavy multitasking. |
Gaming
No clear winner declared
Productivity
HWBench recommends Intel Core i9-7940X
Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.
Features
Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
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 | | | |
Boost 3.0 | | | |
Architecture
| Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
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 | Sep 2017 |
Cores
| Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
Cores | 8 | vs | 14 |
Threads | 16 | vs | 28 |
SMPs | 1 | vs | 1 |
Integrated Graphics | UHD Graphics 630 | vs | No |
Cache
| Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
L1 Cache | 64 KB (per core) | vs | 64 KB (per core) |
L2 Cache | 256 KB (per core) | vs | 1024 KB (per core) |
L3 Cache | 16896 KB (shared) | vs | 19712 KB (shared) |
Physical
| Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
Socket | Intel Socket 1151 | vs | Intel Socket 2066 |
Max Case Temp | 72°C | vs | unknown |
Package | FC-LGA14C | vs | FC-LGA2066 |
Die Size | unknown | vs | 428mm² |
Process | 14 nm | vs | 14 nm |
Performance
| Intel Core i9-9900K | | Intel Core i9-7940X | |
---|
Cpu Frequency | 3600 MHz | vs | 3100 MHz |
Turbo Clock | 5000 MHz | vs | 4400 MHz |
Base Clock | 100 MHz | vs | 100 MHz |
Voltage | unknown | vs | unknown |
TDP | 95 W | vs | 165 W |
Intel Core i9-9900K
6000 points
Intel Core i9-7940X
5280 points
Points - higher is better
Intel Core i9-9900K
41472 points
Intel Core i9-7940X
62496 points
Points - higher is better
points - higher is better
points - higher is better