Ryzen 9 9955HX vs Ryzen 7 5800X
Ryzen 9 9955HX
Popular choices:
Ryzen 7 5800X
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
Performance Per Dollar Ryzen 7 5800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 9955HX | Ryzen 7 5800X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
| Longevity | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Ryzen 9 9955HX | Ryzen 7 5800X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
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.
League of Legends
Valorant
Technical Specifications
Side-by-side comparison of Ryzen 9 9955HX and Ryzen 7 5800X
Ryzen 9 9955HX
The Ryzen 9 9955HX is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 55,711 points. Launch price was $650.
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.
Processing Power
The Ryzen 9 9955HX packs 16 cores / 32 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 9 9955HX has 8 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX versus 4.7 GHz on the Ryzen 7 5800X — a 13.9% clock advantage for the Ryzen 9 9955HX (base: 2.5 GHz vs 3.8 GHz). The Ryzen 9 9955HX uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 9 9955HX scores 55,711 against the Ryzen 7 5800X's 27,712 — a 67.1% lead for the Ryzen 9 9955HX. L3 cache: 64 MB (total) on the Ryzen 9 9955HX vs 32 MB on the Ryzen 7 5800X.
| Feature | Ryzen 9 9955HX | Ryzen 7 5800X |
|---|---|---|
| Cores / Threads | 16 / 32+100% | 8 / 16 |
| Boost Clock | 5.4 GHz+15% | 4.7 GHz |
| Base Clock | 2.5 GHz | 3.8 GHz+52% |
| L3 Cache | 64 MB (total)+100% | 32 MB |
| L2 Cache | 1 MB (per core)+100% | 512K (per core) |
| Process | 4 nm-43% | 7 nm, 12 nm |
| Architecture | Fire Range-HX (Zen 5) (2025) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 55,711+101% | 27,712 |
| Cinebench R23 Multi | 38,010 | — |
| Geekbench 6 Single | 3,219 | — |
| Geekbench 6 Multi | 19,563 | — |
Memory & Platform
The Ryzen 9 9955HX uses the FL1 socket (PCIe 5.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Ryzen 9 9955HX versus DDR4-3200 on the Ryzen 7 5800X — the Ryzen 9 9955HX supports 22.2% 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 96 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 9 9955HX) vs 24 (Ryzen 7 5800X) — the Ryzen 9 9955HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FL1 (Ryzen 9 9955HX) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).
| Feature | Ryzen 9 9955HX | Ryzen 7 5800X |
|---|---|---|
| Socket | FL1 | AM4 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-5600+25% | DDR4-3200 |
| Max RAM Capacity | 96 GB | 128 GB+33% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28+17% | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 9955HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Ryzen 9 9955HX) vs AMD-V (Ryzen 7 5800X). The Ryzen 9 9955HX includes integrated graphics (Radeon 610M), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop. Direct competitor: Ryzen 9 9955HX rivals Core Ultra 9 275HX.
| Feature | Ryzen 9 9955HX | Ryzen 7 5800X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 610M | — |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | No |
| Virtualization | true | AMD-V |
| Target Use | — | Desktop |
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