Core Ultra 9 275HX vs Ryzen 9 9955HX
Core Ultra 9 275HX
Ryzen 9 9955HX
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 Ultra 9 275HX
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Core Ultra 9 275HX and Ryzen 9 9955HX
Core Ultra 9 275HX
The Core Ultra 9 275HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 24 cores and 24 threads. Base frequency is 2.7 GHz, with boost up to 5.4 GHz. L3 cache: 36 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: FCBGA2114. Thermal design power (TDP): 55 Watt. Memory support: DDR5-6400. Passmark benchmark score: 56,018 points. Launch price was $600.
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.
Processing Power
The Core Ultra 9 275HX packs 24 cores / 24 threads, while the Ryzen 9 9955HX offers 16 cores / 32 threads — the Core Ultra 9 275HX has 8 more cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 5.4 GHz on the Ryzen 9 9955HX — identical boost frequencies (base: 2.7 GHz vs 2.5 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Ryzen 9 9955HX uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Core Ultra 9 275HX scores 56,018 against the Ryzen 9 9955HX's 55,711 — a 0.5% lead for the Core Ultra 9 275HX. Geekbench 6 single-core — the metric most relevant to gaming — records 2,835 vs 3,219, a 12.7% lead for the Ryzen 9 9955HX that directly translates to higher frame rates. Multi-core Geekbench: 17,908 vs 19,563 (8.8% advantage for the Ryzen 9 9955HX). L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 64 MB (total) on the Ryzen 9 9955HX.
| Feature | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Cores / Threads | 24 / 24+50% | 16 / 32 |
| Boost Clock | 5.4 GHz | 5.4 GHz |
| Base Clock | 2.7 GHz+8% | 2.5 GHz |
| L3 Cache | 36 MB (total) | 64 MB (total)+78% |
| L2 Cache | 3 MB (per core)+200% | 1 MB (per core) |
| Process | 3 nm-25% | 4 nm |
| Architecture | Arrow Lake-HX (2025) | Fire Range-HX (Zen 5) (2025) |
| PassMark | 56,018 | 55,711 |
| Cinebench R23 Multi | — | 38,010 |
| Geekbench 6 Single | 2,835 | 3,219+14% |
| Geekbench 6 Multi | 17,908 | 19,563+9% |
Memory & Platform
The Core Ultra 9 275HX uses the FCBGA2114 socket (PCIe 5.0), while the Ryzen 9 9955HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Core Ultra 9 275HX supports up to 256 GB of RAM compared to 96 GB — 90.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 9 275HX) vs 28 (Ryzen 9 9955HX) — the Ryzen 9 9955HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and AMD FL1 (Ryzen 9 9955HX).
| Feature | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Socket | FCBGA2114 | FL1 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400 | DDR5-5600 |
| Max RAM Capacity | 256 GB+167% | 96 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 28+17% |
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: VT-x, VT-d (Core Ultra 9 275HX) vs true (Ryzen 9 9955HX). Both include integrated graphics — Intel Arc Graphics (Core Ultra 9 275HX) and Radeon 610M (Ryzen 9 9955HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core Ultra 9 275HX targets High-End Gaming Laptop. Direct competitor: Core Ultra 9 275HX rivals Ryzen 9 9955HX; Ryzen 9 9955HX rivals Core Ultra 9 275HX.
| Feature | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel Arc Graphics | Radeon 610M |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | true |
| Target Use | High-End Gaming Laptop | — |
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