CPU
GPU
Core i9-9820X
Ryzen 7 6800U
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i9-9820X
Performance Per Dollar Ryzen 7 6800U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-9820X | Ryzen 7 6800U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($280) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Rembrandt-U (Zen 3+) (2022) / 6 nm) |
💎 Value Proposition
| Insight | Core i9-9820X | Ryzen 7 6800U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($280) | ✅ More affordable ($0) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i9-9820X and Ryzen 7 6800U
Core i9-9820X
The Core i9-9820X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.2 GHz. L3 cache: 16.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 20,456 points. Launch price was $898.
Ryzen 7 6800U
The Ryzen 7 6800U is manufactured by AMD. It was released in Janeiro 2022 (3 years ago). It is based on the Rembrandt-U (Zen 3+) (2022) architecture. It features 8 cores and 16 threads. Base frequency is 2.7 GHz, with boost up to 4.7 GHz. L3 cache: 16 MB (total). L2 cache: 512K (per core). Built on 6 nm process technology. Socket: FP7. Thermal design power (TDP): 15 Watt. Memory support: DDR5. Passmark benchmark score: 20,619 points. Launch price was $299.
Processing Power
The Core i9-9820X packs 10 cores / 20 threads, while the Ryzen 7 6800U offers 8 cores / 16 threads — the Core i9-9820X has 2 more cores. Boost clocks reach 4.2 GHz on the Core i9-9820X versus 4.7 GHz on the Ryzen 7 6800U — a 11.2% clock advantage for the Ryzen 7 6800U (base: 3.3 GHz vs 2.7 GHz). The Core i9-9820X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Ryzen 7 6800U uses Rembrandt-U (Zen 3+) (2022) (6 nm). In PassMark, the Core i9-9820X scores 20,456 against the Ryzen 7 6800U's 20,619 — a 0.8% lead for the Ryzen 7 6800U. Geekbench 6 single-core — the metric most relevant to gaming — records 1,394 vs 1,713, a 20.5% lead for the Ryzen 7 6800U that directly translates to higher frame rates. Multi-core Geekbench: 9,361 vs 7,397 (23.4% advantage for the Core i9-9820X). L3 cache: 16.5 MB (total) on the Core i9-9820X vs 16 MB (total) on the Ryzen 7 6800U.
| Feature | Core i9-9820X | Ryzen 7 6800U |
|---|---|---|
| Cores / Threads | 10 / 20+25% | 8 / 16 |
| Boost Clock | 4.2 GHz | 4.7 GHz+12% |
| Base Clock | 3.3 GHz+22% | 2.7 GHz |
| L3 Cache | 16.5 MB (total)+3% | 16 MB (total) |
| L2 Cache | 1 MB (per core)+100% | 512K (per core) |
| Process | 14 nm | 6 nm-57% |
| Architecture | Skylake (server) (2017−2018) | Rembrandt-U (Zen 3+) (2022) |
| PassMark | 20,456 | 20,619 |
| Cinebench R23 Multi | — | 11,741 |
| Geekbench 6 Single | 1,394 | 1,713+23% |
| Geekbench 6 Multi | 9,361+27% | 7,397 |
Memory & Platform
The Core i9-9820X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 6800U uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4 2666 MHz on the Core i9-9820X versus LPDDR5-6400 on the Ryzen 7 6800U — the Core i9-9820X supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-9820X supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Memory channels: 4 (Core i9-9820X) vs 2 (Ryzen 7 6800U). PCIe lanes: 44 (Core i9-9820X) vs 20 (Ryzen 7 6800U) — the Core i9-9820X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel X299 (Core i9-9820X) and SoC (Ryzen 7 6800U).
| Feature | Core i9-9820X | Ryzen 7 6800U |
|---|---|---|
| Socket | LGA2066 | FP7 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR4 2666 MHz | LPDDR5-6400+25% |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 4+100% | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 44+120% | 20 |
Advanced Features
Only the Core i9-9820X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i9-9820X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core i9-9820X) vs AMD-V (SVM) (Ryzen 7 6800U). The Ryzen 7 6800U includes integrated graphics (Radeon 680M), while the Core i9-9820X requires a dedicated GPU. Primary use case: Core i9-9820X targets Workstation, Ryzen 7 6800U targets Productivity. Direct competitor: Ryzen 7 6800U rivals Core i7-1255U.
| Feature | Core i9-9820X | Ryzen 7 6800U |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon 680M |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | true | AMD-V (SVM) |
| Target Use | Workstation | Productivity |
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