Processor comparison
Intel Core i7-8670 vs Intel Core i7-7740X
Intel
Intel Core i7-8670
Intel Socket 1151
3100 MHz
6 cores
Jan 2018
DESKTOP
VS
Intel
Intel Core i7-7740X
Intel Socket 2066
4300 MHz
4 cores
Jun 2017
DESKTOP
Summary
Synthetic performance index
- Intel Core i7-8670100%
- Intel Core i7-7740X117%
Relative performance
Single thread performance index
- Intel Core i7-8670100%
- Intel Core i7-7740X135%
Relative performance
Multi thread performance index
- Intel Core i7-8670100%
- Intel Core i7-7740X100%
Relative performance
Reasons to consider the Intel Core i7-8670
- 47 watts lower power draw.
- Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i7-7740X.
Reasons to consider the Intel Core i7-7740X
- Much higher single threaded performance (around 35% higher), makes a noticeable performance difference in gaming and the majority of applications.
Gaming
No clear winner declared
Productivity
No clear winner declared
Specifications
Features
| Intel Core i7-8670 | Intel Core i7-7740X |
|---|
| 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 i7-8670 | Intel Core i7-7740X |
|---|
| Architecture | Intel_Coffelake | Intel_Kabylake |
| Market | Desktop | Desktop |
| Memory Support | DDR4 | DDR4 |
| Codename | Coffee Lake | Kaby Lake-X |
| Release Date | Jan 2018 | Jun 2017 |
Cores
| Intel Core i7-8670 | Intel Core i7-7740X |
|---|
| Cores | 6 | 4 |
| Threads | 12 | 8 |
| SMPs | 1 | 1 |
| Integrated Graphics | UHD Graphics 630 | No |
Cache
| Intel Core i7-8670 | Intel Core i7-7740X |
|---|
| 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) | 8192 KB (shared) |
Physical
| Intel Core i7-8670 | Intel Core i7-7740X |
|---|
| Socket | Intel Socket 1151 | Intel Socket 2066 |
| Max Case Temp | 72°C | 72°C |
| Package | FC-LGA1151 | FC-LGA2066 |
| Die Size | unknown | 308mm² |
| Process | 14 nm | 14 nm |
Performance
| Intel Core i7-8670 | Intel Core i7-7740X |
|---|
| Cpu Frequency | 3100 MHz | 4300 MHz |
| Turbo Clock | 4400 MHz | 4600 MHz |
| Base Clock | 100 MHz | 100 MHz |
| Voltage | variable | unknown |
| TDP | 65 W | 112 W |
Raw performance index
Raw single-thread performance estimation
- Intel Core i7-86705280 points
- Intel Core i7-7740X5520 points
Points - higher is better
Raw multi-thread performance estimation
- Intel Core i7-867026784 points
- Intel Core i7-7740X24768 points
Points - higher is better
Synthetic benchmarks
Cinebench R15 CPU Single 64Bit
- Intel Core i7-8670 (simulated)189.11
- Intel Core i7-7740X (simulated)255.38
points - higher is better
Cinebench R15 CPU Multi 64Bit
- Intel Core i7-8670 (simulated)1183.03
- Intel Core i7-7740X (simulated)1180.28
points - higher is better