Ryzen 7 5800X vs Core i9-11900KF
Ryzen 7 5800X
Core i9-11900KF
Popular choices:
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 i9-11900KF
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($180) | ⚠️ Higher cost ($349) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Rocket Lake (2021) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+119%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($180) | ⚠️ Higher cost ($349) |
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 i9-11900KF
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 i9-11900KF
The Core i9-11900KF is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.5 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 125 Watt. Memory support: DDR4-3200. Passmark benchmark score: 24,585 points. Launch price was $299.
Processing Power
Both the Ryzen 7 5800X and Core i9-11900KF share an identical 8-core/16-thread configuration. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 5.2 GHz on the Core i9-11900KF — a 10.1% clock advantage for the Core i9-11900KF (base: 3.8 GHz vs 3.5 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Core i9-11900KF uses Rocket Lake (2021) (14 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Core i9-11900KF's 24,585 — a 12% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 16 MB (total) on the Core i9-11900KF.
| Feature | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.7 GHz | 5.2 GHz+11% |
| Base Clock | 3.8 GHz+9% | 3.5 GHz |
| L3 Cache | 32 MB+100% | 16 MB (total) |
| L2 Cache | 512K (per core)+100% | 256K (per core) |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Rocket Lake (2021) |
| PassMark | 27,712+13% | 24,585 |
| Cinebench R23 Multi | — | 15,500 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Core i9-11900KF uses LGA1200 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 5800X) vs 20 (Core i9-11900KF) — the Ryzen 7 5800X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and Z590,B560 (Core i9-11900KF).
| Feature | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| Socket | AM4 | LGA1200 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR4-3200 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Core i9-11900KF supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 5800X) vs VT-x, VT-d (Core i9-11900KF). Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Desktop | — |
Value Analysis
The Ryzen 7 5800X launched at $449 MSRP, while the Core i9-11900KF debuted at $513. At current prices ($180 vs $349), the Ryzen 7 5800X is $169 cheaper. In terms of value (PassMark points per dollar), the Ryzen 7 5800X delivers 154.0 pts/$ vs 70.4 pts/$ for the Core i9-11900KF — making the Ryzen 7 5800X the 74.4% better value option.
| Feature | Ryzen 7 5800X | Core i9-11900KF |
|---|---|---|
| MSRP | $449-12% | $513 |
| Avg Price (30d) | $180-48% | $349 |
| Performance per Dollar | 154.0+119% | 70.4 |
| Release Date | 2020 | 2021 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Ryzen 7 5800X and Core i9-11900KF
