Core i5-11400 vs Ryzen 9 5900X
Core i5-11400
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. 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 i5-11400
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($141) | ⚠️ Higher cost ($350) |
| Longevity | ✨ Modern (Rocket Lake (2021) / 14 nm) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+6%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($141) | ⚠️ 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 i5-11400 and Ryzen 9 5900X
Core i5-11400
The Core i5-11400 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 6 cores and 12 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 16,670 points. Launch price was $299.
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 i5-11400 packs 6 cores / 12 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 6 more cores. Boost clocks reach 4.4 GHz on the Core i5-11400 versus 4.8 GHz on the Ryzen 9 5900X — a 8.7% clock advantage for the Ryzen 9 5900X (base: 2.6 GHz vs 3.7 GHz). The Core i5-11400 uses the Rocket Lake (2021) architecture (14 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i5-11400 scores 16,670 against the Ryzen 9 5900X's 38,955 — a 80.1% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 10,350 vs 21,000 (67.9% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,960 vs 2,174, a 10.4% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 7,260 vs 11,888 (48.3% advantage for the Ryzen 9 5900X). L3 cache: 12 MB (total) on the Core i5-11400 vs 64 MB on the Ryzen 9 5900X.
| Feature | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 6 / 12 | 12 / 24+100% |
| Boost Clock | 4.4 GHz | 4.8 GHz+9% |
| Base Clock | 2.6 GHz | 3.7 GHz+42% |
| L3 Cache | 12 MB (total) | 64 MB+433% |
| L2 Cache | 256K (per core) | 512K (per core)+100% |
| Process | 14 nm | 7 nm, 12 nm-50% |
| Architecture | Rocket Lake (2021) | Vermeer (Zen3) (2020−2022) |
| PassMark | 16,670 | 38,955+134% |
| Cinebench R23 Multi | 10,350 | 21,000+103% |
| Geekbench 6 Single | 1,960 | 2,174+11% |
| Geekbench 6 Multi | 7,260 | 11,888+64% |
Memory & Platform
The Core i5-11400 uses the LGA1200 socket (PCIe 4.0), while the Ryzen 9 5900X uses AM4 (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: 20 (Core i5-11400) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: B560,Z590 (Core i5-11400) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| Socket | LGA1200 | 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 i5-11400 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i5-11400) vs AMD-V (Ryzen 9 5900X). The Core i5-11400 includes integrated graphics (Intel UHD Graphics 730), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Core i5-11400 targets Mainstream Desktop, Ryzen 9 5900X targets Workstation. Direct competitor: Core i5-11400 rivals Ryzen 5 5600X; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel UHD Graphics 730 | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | AMD-V |
| Target Use | Mainstream Desktop | Workstation |
Value Analysis
The Core i5-11400 launched at $182 MSRP, while the Ryzen 9 5900X debuted at $549. At current prices ($141 vs $350), the Core i5-11400 is $209 cheaper. In terms of value (PassMark points per dollar), the Core i5-11400 delivers 118.2 pts/$ vs 111.3 pts/$ for the Ryzen 9 5900X — making the Core i5-11400 the 6% better value option.
| Feature | Core i5-11400 | Ryzen 9 5900X |
|---|---|---|
| MSRP | $182-67% | $549 |
| Avg Price (30d) | $141-60% | $350 |
| Performance per Dollar | 118.2+6% | 111.3 |
| Release Date | 2021 | 2020 |
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