Core i9-11900KF vs Ryzen 9 7950X3D
Core i9-11900KF
Popular choices:
Ryzen 9 7950X3D
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 i9-11900KF
Performance Per Dollar Ryzen 9 7950X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($349) | ⚠️ Higher cost ($486) |
| Longevity | ✨ Modern (Rocket Lake (2021) / 14 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+82%) |
| Upfront Cost | ✅ More affordable ($349) | ⚠️ Higher cost ($486) |
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 i9-11900KF and Ryzen 9 7950X3D
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.
Ryzen 9 7950X3D
The Ryzen 9 7950X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.
Processing Power
The Core i9-11900KF packs 8 cores / 16 threads, while the Ryzen 9 7950X3D offers 16 cores / 32 threads — the Ryzen 9 7950X3D has 8 more cores. Boost clocks reach 5.2 GHz on the Core i9-11900KF versus 5.7 GHz on the Ryzen 9 7950X3D — a 9.2% clock advantage for the Ryzen 9 7950X3D (base: 3.5 GHz vs 4.2 GHz). The Core i9-11900KF uses the Rocket Lake (2021) architecture (14 nm), while the Ryzen 9 7950X3D uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the Core i9-11900KF scores 24,585 against the Ryzen 9 7950X3D's 62,323 — a 86.8% lead for the Ryzen 9 7950X3D. Cinebench R23 multi-core: 15,500 vs 38,581 (85.4% advantage for the Ryzen 9 7950X3D). L3 cache: 16 MB (total) on the Core i9-11900KF vs 128 MB (total) on the Ryzen 9 7950X3D.
| Feature | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| Cores / Threads | 8 / 16 | 16 / 32+100% |
| Boost Clock | 5.2 GHz | 5.7 GHz+10% |
| Base Clock | 3.5 GHz | 4.2 GHz+20% |
| L3 Cache | 16 MB (total) | 128 MB (total)+700% |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 5 nm, 6 nm-64% |
| Architecture | Rocket Lake (2021) | Raphael (Zen4) (2022−2023) |
| PassMark | 24,585 | 62,323+154% |
| Cinebench R23 Multi | 15,500 | 38,581+149% |
| Geekbench 6 Single | — | 2,926 |
| Geekbench 6 Multi | — | 19,643 |
Memory & Platform
The Core i9-11900KF uses the LGA1200 socket (PCIe 4.0), while the Ryzen 9 7950X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i9-11900KF versus DDR5-5200 on the Ryzen 9 7950X3D — the Ryzen 9 7950X3D supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i9-11900KF) vs 28 (Ryzen 9 7950X3D) — the Ryzen 9 7950X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z590,B560 (Core i9-11900KF) and AMD X670E,AMD X670,AMD B650E,AMD B650 (Ryzen 9 7950X3D).
| Feature | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| Socket | LGA1200 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | DDR5-5200+25% |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 20 | 28+40% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Core i9-11900KF) vs true (Ryzen 9 7950X3D). The Ryzen 9 7950X3D includes integrated graphics (Radeon Graphics), while the Core i9-11900KF requires a dedicated GPU. Direct competitor: Ryzen 9 7950X3D rivals Core i9-13900K.
| Feature | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon Graphics |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | true |
Value Analysis
The Core i9-11900KF launched at $513 MSRP, while the Ryzen 9 7950X3D debuted at $699. At current prices ($349 vs $486), the Core i9-11900KF is $137 cheaper. In terms of value (PassMark points per dollar), the Core i9-11900KF delivers 70.4 pts/$ vs 128.2 pts/$ for the Ryzen 9 7950X3D — making the Ryzen 9 7950X3D the 58.2% better value option.
| Feature | Core i9-11900KF | Ryzen 9 7950X3D |
|---|---|---|
| MSRP | $513-27% | $699 |
| Avg Price (30d) | $349-28% | $486 |
| Performance per Dollar | 70.4 | 128.2+82% |
| Release Date | 2021 | 2023 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Core i9-11900KF and Ryzen 9 7950X3D
