Ryzen 7 5800X vs Core i9-9900KS
Ryzen 7 5800X
Core i9-9900KS
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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 Ryzen 7 5800X
Performance Per Dollar Core i9-9900KS
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($180) | ⚠️ Higher cost ($350) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+178%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($180) | ⚠️ Higher cost ($350) |
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 Ryzen 7 5800X and Core i9-9900KS
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.
Core i9-9900KS
The Core i9-9900KS is manufactured by Intel. It was released in 28 October 2019 (6 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 16 threads. Base frequency is 4 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 127 Watt. Memory support: DDR4. Passmark benchmark score: 19,397 points. Launch price was $513.
Processing Power
Both the Ryzen 7 5800X and Core i9-9900KS share an identical 8-core/16-thread configuration. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 5 GHz on the Core i9-9900KS — a 6.2% clock advantage for the Core i9-9900KS (base: 3.8 GHz vs 4 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Core i9-9900KS uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Core i9-9900KS's 19,397 — a 35.3% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 16 MB (total) on the Core i9-9900KS.
| Feature | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.7 GHz | 5 GHz+6% |
| Base Clock | 3.8 GHz | 4 GHz+5% |
| L3 Cache | 32 MB+100% | 16 MB (total) |
| L2 Cache | 512K (per core)+100% | 256 kB (per core) |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Coffee Lake-R (2018−2019) |
| PassMark | 27,712+43% | 19,397 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Core i9-9900KS uses LGA1151 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| Socket | AM4 | LGA1151 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 24 | — |
Advanced Features
Virtualization: AMD-V (Ryzen 7 5800X) / not specified (Core i9-9900KS). Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Desktop | — |
Value Analysis
The Ryzen 7 5800X launched at $449 MSRP, while the Core i9-9900KS debuted at $513. At current prices ($180 vs $350), the Ryzen 7 5800X is $170 cheaper. In terms of value (PassMark points per dollar), the Ryzen 7 5800X delivers 154.0 pts/$ vs 55.4 pts/$ for the Core i9-9900KS — making the Ryzen 7 5800X the 94.1% better value option.
| Feature | Ryzen 7 5800X | Core i9-9900KS |
|---|---|---|
| MSRP | $449-12% | $513 |
| Avg Price (30d) | $180-49% | $350 |
| Performance per Dollar | 154.0+178% | 55.4 |
| Release Date | 2020 | 2019 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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