Intel Core i9-12900K vs AMD Ryzen 9 3900X
Summary
Intel Core i9-12900K
137%
AMD Ryzen 9 3900X
100%
Relative performance
Intel Core i9-12900K
137%
AMD Ryzen 9 3900X
100%
Relative performance
Reasons to consider Intel Core i9-12900K |
| Much higher single threaded performance (around 37% higher), makes a noticeable performance difference in gaming and the majority of applications. |
| 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 AMD Ryzen 9 3900X. |
| Around 37% higher average synthetic performance. |
Reasons to consider AMD Ryzen 9 3900X |
| None |
Gaming
HWBench recommends Intel Core i9-12900K
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
No clear winner declared
Features
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| MMX | | | |
| SSE | | | |
| SSE2 | | | |
| SSE3 | | | |
| SSSE3 | | | |
| SSE4.2 | | | |
| AVX | | | |
| AVX2 | | | |
| AVX-512 | | | |
| FMA3 | | | |
| SHA | | | |
| EIST | | | |
| Intel 64 | | | |
| XD bit | | | |
| VT-x | | | |
| VT-d | | | |
| AES-NI | | | |
| TSX | | | |
| TXT | | | |
| CLMUL | | | |
| F16C | | | |
| BMI1 | | | |
| BMI2 | | | |
| ABM | | | |
| ADX | | | |
| RdRand | | | |
| TBT 2.0 | | | |
| TBT 3.0 | | | |
| SSE4A | | | |
| SSE4.1 | | | |
| AES | | | |
| AMD64 | | | |
| EVP | | | |
| AMD-V | | | |
| SMAP | | | |
| SMEP | | | |
| SMT | | | |
| Precision Boost 2 | | | |
| XFR 2 | | | |
Architecture
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| Architecture | Intel Adler Lake | vs | AMD Zen 2 |
| Market | Desktop | vs | Desktop |
| Memory Support | DDR4-3200 MHz
Dual-channel | vs | DDR4 |
| Codename | Alder Lake | vs | Zen 2 |
| Release Date | Nov 2021 | vs | Dec 2019 |
Cores
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| Cores | 16 | vs | 12 |
| Threads | 24 | vs | 24 |
| E-Cores | 8 | vs | none |
| SMPs | 1 | vs | 1 |
| Integrated Graphics | UHD Graphics 770 | vs | No |
Cache
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| L1 Cache | 64K (per core) | vs | 96K (per core) |
| L2 Cache | 14MB (shared) | vs | 512K (per core) |
| L3 Cache | 30MB (shared) | vs | 64MB |
Physical
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| Socket | Intel Socket 1700 | vs | AMD Socket AM4 |
| Max Case Temp | 72°C | vs | unknown |
| Package | FC-LGA1700 | vs | |
| Die Size | unknown | vs | unknown |
| Process | 10 nm | vs | 7 nm |
Performance
| Intel Core i9-12900K | | AMD Ryzen 9 3900X | |
|---|
| Cpu Frequency | 3200 MHz | vs | 3800 MHz |
| Turbo Clock | 5200 MHz | vs | 4600 MHz |
| Base Clock | 100 MHz | vs | 100 MHz |
| E-Core Frequency | 2400 MHz | vs | - |
| E-Core Turbo Clock | 3900 MHz | vs | - |
| Voltage | N/A | vs | variable |
| TDP | 125 W | vs | 125 W |
Intel Core i9-12900K
6240 points
AMD Ryzen 9 3900X
5152 points
Points - higher is better
Intel Core i9-12900K
67584 points
AMD Ryzen 9 3900X
62307 points
Points - higher is better
Intel Core i9-12900K
284
AMD Ryzen 9 3900X
206
points - higher is better