Ryzen 7 5800X vs Core i5-8400H
Ryzen 7 5800X
Core i5-8400H
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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 i5-8400H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Core i5-8400H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Coffee Lake-H (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Core i5-8400H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
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 i5-8400H
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 i5-8400H
The Core i5-8400H is manufactured by Intel. It was released in 2 April 2018 (7 years ago). It is based on the Coffee Lake-H (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 4.2 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 7,456 points. Launch price was $250.
Processing Power
The Ryzen 7 5800X packs 8 cores / 16 threads, while the Core i5-8400H offers 4 cores / 8 threads — the Ryzen 7 5800X has 4 more cores. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 4.2 GHz on the Core i5-8400H — a 11.2% clock advantage for the Ryzen 7 5800X (base: 3.8 GHz vs 2.5 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Core i5-8400H uses Coffee Lake-H (2018−2019) (14 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Core i5-8400H's 7,456 — a 115.2% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 12 MB (total) on the Core i5-8400H.
| Feature | Ryzen 7 5800X | Core i5-8400H |
|---|---|---|
| Cores / Threads | 8 / 16+100% | 4 / 8 |
| Boost Clock | 4.7 GHz+12% | 4.2 GHz |
| Base Clock | 3.8 GHz+52% | 2.5 GHz |
| L3 Cache | 32 MB+167% | 12 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) | Coffee Lake-H (2018−2019) |
| PassMark | 27,712+272% | 7,456 |
| Cinebench R23 Multi | — | 4,657 |
| Geekbench 6 Single | — | 1,493 |
| Geekbench 6 Multi | — | 4,963 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Core i5-8400H uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 5800X versus DDR4 2666 MHz on the Core i5-8400H — the Core i5-8400H supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800X supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 5800X) vs 16 (Core i5-8400H) — the Ryzen 7 5800X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and Intel HM370,Intel QM370 (Core i5-8400H).
| Feature | Ryzen 7 5800X | Core i5-8400H |
|---|---|---|
| Socket | AM4 | BGA1440 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | DDR4 2666 MHz |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 24+50% | 16 |
Advanced Features
Only the Ryzen 7 5800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (Ryzen 7 5800X) vs true (Core i5-8400H). The Core i5-8400H includes integrated graphics (Intel UHD Graphics 630), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop, Core i5-8400H targets Mobile.
| Feature | Ryzen 7 5800X | Core i5-8400H |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel UHD Graphics 630 |
| Unlocked | Yes | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | true |
| Target Use | Desktop | Mobile |
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