Intel Core i7-8700K vs Intel Core i7-3820
Summary
Intel Core i7-8700K
186%
Intel Core i7-3820
100%
Relative performance
Intel Core i7-8700K
156%
Intel Core i7-3820
100%
Relative performance
Intel Core i7-8700K
217%
Intel Core i7-3820
100%
Relative performance
Reasons to consider Intel Core i7-8700K |
| Much higher single threaded performance (around 56% higher), makes a noticeable performance difference in gaming and the majority of applications. |
| Much higher multi threaded performance (around 117% higher). This allows for higher performance in professional applications like encoding or heavy multitasking. |
| 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 i7-3820. |
| Around 86% higher average synthetic performance. |
Reasons to consider Intel Core i7-3820 |
| None |
Gaming
HWBench recommends Intel Core i7-8700K
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
HWBench recommends Intel Core i7-8700K
Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.
Features
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| 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 | | | |
| Hyper-Threading | | | |
Architecture
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| Architecture | Intel_Coffelake | vs | Intel_SandyBridge |
| Market | Desktop | vs | Desktop |
| Memory Support | DDR4 | vs | DDR3 |
| Codename | Coffee Lake | vs | Sandy Bridge-E |
| Release Date | Oct 2017 | vs | Feb 2012 |
Cores
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| Cores | 6 | vs | 4 |
| Threads | 12 | vs | 8 |
| SMPs | 1 | vs | 1 |
| Integrated Graphics | Intel UHD 630 | vs | No |
Cache
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| L1 Cache | 64 KB (per core) | vs | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | vs | 256 KB (per core) |
| L3 Cache | 12288 KB (shared) | vs | 10240 KB (shared) |
Physical
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| Socket | Intel Socket 1151 | vs | Intel Socket 2011 |
| Max Case Temp | 72°C | vs | 67°C |
| Package | FC-LGA1151 | vs | FC-LGA10 |
| Die Size | 151mm² | vs | 294mm² |
| Process | 14 nm | vs | 32 nm |
Performance
| Intel Core i7-8700K | | Intel Core i7-3820 | |
|---|
| Cpu Frequency | 3700 MHz | vs | 3600 MHz |
| Turbo Clock | 4700 MHz | vs | 3800 MHz |
| Base Clock | 100 MHz | vs | 100 MHz |
| Voltage | unknown | vs | 1.35 V |
| TDP | 95 W | vs | 130 W |
Intel Core i7-8700K
5640 points
Intel Core i7-3820
3800 points
Points - higher is better
Intel Core i7-8700K
31968 points
Intel Core i7-3820
17280 points
Points - higher is better
points - higher is better
points - higher is better