AMD Ryzen 9 9900X3D vs Intel Core i7-5820K
—Single-core20.7
86.2Multi-core30.2
93.8Gamingspec-based37.1
13 spec wins — AMD Ryzen 9 9900X3D1 spec wins — Intel Core i7-5820K
InnoReviews verdict
No overall winner yet: AMD Ryzen 9 9900X3D lacks the published benchmark results an Inno Score requires, so there is no Inno Score to compare — we don't rank chips on their spec sheet alone. The spec table below still shows every difference we track.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 9900X3D
- Stronger multi-core score: 86 vs 30
- 753% higher L3 cache: 128 MB vs 15 MB
- 700% higher L2 cache: 12 MB vs 2 MB
- 341% higher PassMark: 56,050 vs 12,700
- 300% higher Max memory: 256 GB vs 64 GB
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- Lower launch price: $389 vs $599
General
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| Announced | 2025+1% | 2014 |
| Socket | AM5 | LGA2011-v3 |
| Process | 4 nm+82% | 22 nm |
| Base TDP | 120 W+14% | 140 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 12+100% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 24+100% | 12 |
| Base clock | 4.4 GHz+33% | 3.3 GHz |
| Boost clock | 5.5 GHz+53% | 3.6 GHz |
| L2 cache | 12 MB+700% | 2 MB |
| L3 cache | 128 MB+753% | 15 MB |
Integrated GPU
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| iGPU | AMD Radeon Graphics (2 CU RDNA 2) | — |
| iGPU clock | 2,200 MHz | — |
Memory
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR5-5600 | DDR4-2133 |
| Max memory | 256 GB+300% | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 28 | 28 |
Benchmarks
| Spec | AMD Ryzen 9 9900X3D | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | — | 1,040Bottom 6% |
| Geekbench 6 (multi) | — | 5,100Bottom 24% |
| Cinebench R23 (single) | — | 890Bottom 5% |
| Cinebench R23 (multi) | — | 6,400Bottom 19% |
| PassMark | 56,050+341%Top 12% | 12,700Bottom 20% |
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