Core Ultra 9 275HX vs Ryzen 9 9955HX

Core Ultra 9 275HX vs Ryzen 9 9955HX Performance Spectrum

Core Ultra 9 275HX

24 / 24

56,018

+0.6%

55,711

0.0%

Ryzen Threadripper 2970WX

Ryzen 7 9700X

Ryzen AI Max PRO 390

Ryzen Threadripper PRO 5955WX

Ryzen 9 9950X3D

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper PRO 7975WX

Ryzen Threadripper PRO 7985WX

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.

Core Ultra 9 275HX vs Ryzen 9 9955HX FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core Ultra 9 275HX vs Ryzen 9 9955HX: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core Ultra 9 275HX

2025

Why buy it

✅Better for gaming: +7.2% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower Geekbench multi-core (17,908 vs 19,563).
❌Smaller total L3 cache (36 MB vs 64 MB).

Ryzen 9 9955HX

2025

Why buy it

✅+9.2% higher Geekbench multi-core.
✅+77.8% larger total L3 cache (64 MB vs 36 MB).
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core Ultra 9 275HX across 50 shared CPU benchmark tests.

Quick Answers

So, is Core Ultra 9 275HX better than Ryzen 9 9955HX?

It depends on what you want from the system. For gaming, Core Ultra 9 275HX is ahead with a 7.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 9955HX pulls ahead with 9.2% better Geekbench multi-core. Ryzen 9 9955HX also has the bigger cache pool with 77.8% larger total L3 cache (64 MB vs 36 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 9 9955HX is the stronger fit. You are getting 9.2% better Geekbench multi-core, backed by 16 cores and 32 threads. It also has the larger cache pool with 77.8% larger total L3 cache (64 MB vs 36 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Core Ultra 9 275HX still makes the most sense overall. Core Ultra 9 275HX comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data.

Which one is more future-proof for 2026 and beyond?

Ryzen 9 9955HX is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Core Ultra 9 275HX vs Ryzen 9 9955HX Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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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%

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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. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 275HX versus DDR5-5600 on the Ryzen 9 9955HX — the Core Ultra 9 275HX supports 14.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 9 275HX supports up to 256 GB of RAM compared to 96 GB — 166.7% 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+14%	DDR5-5600
Max RAM Capacity	256 GB+167%	96 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	24	28+17%

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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.