Ryzen 9 9955HX vs Core i5-12400F
Ryzen 9 9955HX
Core i5-12400F
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 Core i5-12400F
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 9955HX | Core i5-12400F |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($110) |
| Longevity | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen 9 9955HX | Core i5-12400F |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($110) |
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 9 9955HX and Core i5-12400F
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.
Core i5-12400F
The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.
Processing Power
The Ryzen 9 9955HX packs 16 cores / 32 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Ryzen 9 9955HX has 10 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX versus 4.4 GHz on the Core i5-12400F — a 20.4% clock advantage for the Ryzen 9 9955HX (base: 2.5 GHz vs 2.5 GHz). The Ryzen 9 9955HX uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Ryzen 9 9955HX scores 55,711 against the Core i5-12400F's 19,532 — a 96.2% lead for the Ryzen 9 9955HX. Cinebench R23 multi-core: 38,010 vs 12,380 (101.7% advantage for the Ryzen 9 9955HX). Geekbench 6 single-core — the metric most relevant to gaming — records 3,219 vs 1,700, a 61.8% lead for the Ryzen 9 9955HX that directly translates to higher frame rates. Multi-core Geekbench: 19,563 vs 657 (187% advantage for the Ryzen 9 9955HX). L3 cache: 64 MB (total) on the Ryzen 9 9955HX vs 18 MB (total) on the Core i5-12400F.
| Feature | Ryzen 9 9955HX | Core i5-12400F |
|---|---|---|
| Cores / Threads | 16 / 32+167% | 6 / 12 |
| Boost Clock | 5.4 GHz+23% | 4.4 GHz |
| Base Clock | 2.5 GHz | 2.5 GHz |
| L3 Cache | 64 MB (total)+256% | 18 MB (total) |
| L2 Cache | 1 MB (per core) | 1.25 MB (per core)+25% |
| Process | 4 nm-43% | Intel 7 nm |
| Architecture | Fire Range-HX (Zen 5) (2025) | Alder Lake-S (2022) |
| PassMark | 55,711+185% | 19,532 |
| Cinebench R23 Multi | 38,010+207% | 12,380 |
| Geekbench 6 Single | 3,219+89% | 1,700 |
| Geekbench 6 Multi | 19,563+2878% | 657 |
Memory & Platform
The Ryzen 9 9955HX uses the FL1 socket (PCIe 5.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR5-5600 memory speed. The Core i5-12400F 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 20 (Core i5-12400F) — the Ryzen 9 9955HX offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FL1 (Ryzen 9 9955HX) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).
| Feature | Ryzen 9 9955HX | Core i5-12400F |
|---|---|---|
| Socket | FL1 | LGA1700 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR5-5600 | DDR5-4800, DDR4-3200 |
| Max RAM Capacity | 96 GB | 128 GB+33% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 28+40% | 20 |
Advanced Features
Virtualization support: true (Ryzen 9 9955HX) vs VT-x, VT-d, EPT (Core i5-12400F). The Ryzen 9 9955HX includes integrated graphics (Radeon 610M), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Ryzen 9 9955HX rivals Core Ultra 9 275HX; Core i5-12400F rivals Ryzen 5 5600.
| Feature | Ryzen 9 9955HX | Core i5-12400F |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 610M | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | — |
| Virtualization | true | VT-x, VT-d, EPT |
| Target Use | — | Gaming Performance/Value |
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