Ryzen 9 9900X vs Core Ultra 9 275HX
Ryzen 9 9900X
Core Ultra 9 275HX
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 9 9900X
Performance Per Dollar Core Ultra 9 275HX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 9900X | Core Ultra 9 275HX |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($370) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Granite Ridge (2024−2025) / 4 nm) | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) |
💎 Value Proposition
| Insight | Ryzen 9 9900X | Core Ultra 9 275HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($370) | ✅ 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 9 9900X and Core Ultra 9 275HX
Ryzen 9 9900X
The Ryzen 9 9900X is manufactured by AMD. It was released in 15 August 2024 (1 year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.6 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 54,530 points. Launch price was $499.
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.
Processing Power
The Ryzen 9 9900X packs 12 cores / 24 threads, while the Core Ultra 9 275HX offers 24 cores / 24 threads — the Core Ultra 9 275HX has 12 more cores. Boost clocks reach 5.6 GHz on the Ryzen 9 9900X versus 5.4 GHz on the Core Ultra 9 275HX — a 3.6% clock advantage for the Ryzen 9 9900X (base: 4.4 GHz vs 2.7 GHz). The Ryzen 9 9900X uses the Granite Ridge (2024−2025) architecture (4 nm), while the Core Ultra 9 275HX uses Arrow Lake-HX (2025) (3 nm). In PassMark, the Ryzen 9 9900X scores 54,530 against the Core Ultra 9 275HX's 56,018 — a 2.7% lead for the Core Ultra 9 275HX. Geekbench 6 single-core — the metric most relevant to gaming — records 3,401 vs 2,835, a 18.2% lead for the Ryzen 9 9900X that directly translates to higher frame rates. Multi-core Geekbench: 19,756 vs 17,908 (9.8% advantage for the Ryzen 9 9900X). L3 cache: 64 MB (total) on the Ryzen 9 9900X vs 36 MB (total) on the Core Ultra 9 275HX.
| Feature | Ryzen 9 9900X | Core Ultra 9 275HX |
|---|---|---|
| Cores / Threads | 12 / 24 | 24 / 24+100% |
| Boost Clock | 5.6 GHz+4% | 5.4 GHz |
| Base Clock | 4.4 GHz+63% | 2.7 GHz |
| L3 Cache | 64 MB (total)+78% | 36 MB (total) |
| L2 Cache | 1 MB (per core) | 3 MB (per core)+200% |
| Process | 4 nm | 3 nm-25% |
| Architecture | Granite Ridge (2024−2025) | Arrow Lake-HX (2025) |
| PassMark | 54,530 | 56,018+3% |
| Cinebench R23 Multi | 33,003 | — |
| Geekbench 6 Single | 3,401+20% | 2,835 |
| Geekbench 6 Multi | 19,756+10% | 17,908 |
Memory & Platform
The Ryzen 9 9900X uses the AM5 socket (PCIe 5.0), while the Core Ultra 9 275HX uses FCBGA2114 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5600 memory speed. Both support up to 256 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 24 PCIe lanes. Chipset compatibility: A620,B650,X670,X870 (Ryzen 9 9900X) and HM870,WM880 (Core Ultra 9 275HX).
| Feature | Ryzen 9 9900X | Core Ultra 9 275HX |
|---|---|---|
| Socket | AM5 | FCBGA2114 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5600 | DDR5-6400 |
| Max RAM Capacity | 256 GB | 256 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 24 | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 9900X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 9900X) vs VT-x, VT-d (Core Ultra 9 275HX). Both include integrated graphics — Radeon 610M (Ryzen 9 9900X) and Intel Arc Graphics (Core Ultra 9 275HX) — 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.
| Feature | Ryzen 9 9900X | Core Ultra 9 275HX |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon 610M | Intel Arc Graphics |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | — | High-End Gaming Laptop |
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