AMD Ryzen 9 7900X vs Intel Core i7-6700K
77.4Single-core30.7
78.5Multi-core27
84.6Gamingspec-based25.6
17 spec wins — AMD Ryzen 9 7900X1 spec wins — Intel Core i7-6700K
InnoReviews verdict
AMD Ryzen 9 7900X wins this desktop processor face-off, 79.7 to 27.8, pulling ahead mainly in multi-core (+52) and single-core (+47). Intel Core i7-6700K still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 7900X
- Stronger single-core score: 77 vs 31
- Stronger multi-core score: 79 vs 27
- 1100% higher L2 cache: 12 MB vs 1 MB
- 700% higher L3 cache: 64 MB vs 8 MB
- 490% higher PassMark: 52,500 vs 8,900
Reasons to pick the Intel Core i7-6700K
- 46% lower Base TDP: 91 W vs 170 W
- Lower launch price: $339 vs $549
General
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| Announced | 2022 | 2015 |
| Socket | AM5 | LGA1151 |
| Process | 5 nm+64% | 14 nm |
| Base TDP | 170 W | 91 W+46% |
| Max turbo power | 230 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| Cores | 12+200% | 4 |
| Performance cores | 12+200% | 4 |
| Efficiency cores | 0 | 0 |
| Threads | 24+200% | 8 |
| Base clock | 4.7 GHz+18% | 4 GHz |
| Boost clock | 5.6 GHz+33% | 4.2 GHz |
| L2 cache | 12 MB+1100% | 1 MB |
| L3 cache | 64 MB+700% | 8 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | Intel HD Graphics 530 |
| iGPU clock | 2,200 MHz | 1,150 MHz |
Memory
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| Memory support | DDR5-5200 | DDR4-2133 / DDR3L-1600 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 28+75% | 16 |
Benchmarks
| Spec | AMD Ryzen 9 7900X | Intel Core i7-6700K |
|---|---|---|
| Geekbench 6 (single) | 2,880+103%Top 27% | 1,420Bottom 25% |
| Geekbench 6 (multi) | 18,500+298%Top 18% | 4,650Bottom 18% |
| Cinebench R23 (single) | 2,000+83%Top 25% | 1,090Bottom 15% |
| Cinebench R23 (multi) | 29,000+480%Top 17% | 5,000Bottom 14% |
| PassMark | 52,500+490%Top 14% | 8,900Bottom 13% |
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