Core i3-11100B vs Ryzen 9 5900X
Core i3-11100B
Ryzen 9 5900X
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. The Core i3-11100B is positioned at rank #223 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 i3-11100B
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-11100B | Ryzen 9 5900X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($350) |
| Longevity | ✨ Modern (Legacy / 10 nm SuperFin) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Core i3-11100B | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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 Core i3-11100B and Ryzen 9 5900X
Core i3-11100B
The Core i3-11100B is manufactured by Intel. It was released in 1 April 2021 (4 years ago). It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB. Built on 10 nm SuperFin process technology. Thermal design power (TDP): 65 Watt. Memory support: Up to 3200 MT/s. Passmark benchmark score: 11,357 points. Launch price was $149.
Ryzen 9 5900X
The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.
Processing Power
The Core i3-11100B packs 4 cores / 8 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 8 more cores. Boost clocks reach 4.4 GHz on the Core i3-11100B versus 4.8 GHz on the Ryzen 9 5900X — a 8.7% clock advantage for the Ryzen 9 5900X (base: 3.6 GHz vs 3.7 GHz). The Ryzen 9 5900X is built on the Vermeer (Zen3) (2020−2022) architecture. In PassMark, the Core i3-11100B scores 11,357 against the Ryzen 9 5900X's 38,955 — a 109.7% lead for the Ryzen 9 5900X. Geekbench 6 single-core — the metric most relevant to gaming — records 1,402 vs 2,174, a 43.2% lead for the Ryzen 9 5900X that directly translates to higher frame rates. L3 cache: 12 MB on the Core i3-11100B vs 64 MB on the Ryzen 9 5900X.
| Feature | Core i3-11100B | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 4 / 8 | 12 / 24+200% |
| Boost Clock | 4.4 GHz | 4.8 GHz+9% |
| Base Clock | 3.6 GHz | 3.7 GHz+3% |
| L3 Cache | 12 MB | 64 MB+433% |
| L2 Cache | — | 512K (per core) |
| Process | 10 nm SuperFin | 7 nm, 12 nm-30% |
| Architecture | — | Vermeer (Zen3) (2020−2022) |
| PassMark | 11,357 | 38,955+243% |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | 1,402 | 2,174+55% |
| Geekbench 6 Multi | — | 11,888 |
Memory & Platform
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: 20 (Core i3-11100B) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H470,Z490,H510,B560,H570,Z590 (Core i3-11100B) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | Core i3-11100B | Ryzen 9 5900X |
|---|---|---|
| Socket | — | AM4 |
| 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 | 20 | 24+20% |
Advanced Features
Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i3-11100B supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i3-11100B) vs AMD-V (Ryzen 9 5900X). The Core i3-11100B includes integrated graphics (UHD Graphics for 11th Gen (16 EU)), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Core i3-11100B targets Desktop, Ryzen 9 5900X targets Workstation. Direct competitor: Core i3-11100B rivals Ryzen 3 5300G; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | Core i3-11100B | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics for 11th Gen (16 EU) | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | Desktop | Workstation |
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