Ryzen 9 7945HX vs Ryzen 9 9955HX

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.

Ryzen 9 7945HX 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.

Ryzen 9 7945HX 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.

Ryzen 9 7945HX

2023

Why buy it

✅Better for gaming: +8.9% higher average FPS across 50 shared CPU benchmark tests.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 9955HX.

Trade-offs

❌Lower Cinebench R23 multi-core (34,521 vs 38,010).

Ryzen 9 9955HX

2025

Why buy it

✅+10.1% higher Cinebench R23 multi-core.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 50 shared CPU benchmark tests.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Quick Answers

So, is Ryzen 9 9955HX better than Ryzen 9 7945HX?

It depends on what you want from the system. For gaming, Ryzen 9 7945HX is ahead with a 8.9% 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 10.1% better Cinebench R23 multi-core.

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 10.1% better Cinebench R23 multi-core, backed by 16 cores and 32 threads.

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

Ryzen 9 9955HX still makes the most sense overall. Ryzen 9 9955HX comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 10.1% better Cinebench R23 multi-core.

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

Ryzen 9 9955HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023) and more multi-core headroom with 16 cores / 32 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 7945HX vs Ryzen 9 9955HX Technical Specifications

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

Ryzen 9 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) 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 CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

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

Both the Ryzen 9 7945HX and Ryzen 9 9955HX share an identical 16-core/32-thread configuration. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX versus 5.4 GHz on the Ryzen 9 9955HX — identical boost frequencies (base: 2.5 GHz vs 2.5 GHz). The Ryzen 9 7945HX uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (CCD = 5 nm, I/O = 6 nm), while the Ryzen 9 9955HX uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Ryzen 9 7945HX scores 54,425 against the Ryzen 9 9955HX's 55,711 — a 2.3% lead for the Ryzen 9 9955HX. Cinebench R23 multi-core: 34,521 vs 38,010 (9.6% advantage for the Ryzen 9 9955HX). Geekbench 6 single-core — the metric most relevant to gaming — records 2,774 vs 3,219, a 14.9% lead for the Ryzen 9 9955HX that directly translates to higher frame rates. Multi-core Geekbench: 16,214 vs 19,563 (18.7% advantage for the Ryzen 9 9955HX). Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 7945HX	Ryzen 9 9955HX
Cores / Threads	16 / 32	16 / 32
Boost Clock	5.4 GHz	5.4 GHz
Base Clock	2.5 GHz	2.5 GHz
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	CCD = 5 nm, I/O = 6 nm	4 nm-20%
Architecture	Dragon Range-HX (Zen 4) (2023−2024)	Fire Range-HX (Zen 5) (2025)
PassMark	54,425	55,711+2%
Cinebench R23 Multi	34,521	38,010+10%
Geekbench 6 Single	2,774	3,219+16%
Geekbench 6 Multi	16,214	19,563+21%

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Memory & Platform

Both processors use the FL1 socket with PCIe 5.0. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7945HX versus DDR5-5600 on the Ryzen 9 9955HX — the Ryzen 9 9955HX supports 7.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 9955HX supports up to 96 GB of RAM compared to 64 GB — 50% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 28 PCIe lanes. Chipset compatibility: FL1 (Ryzen 9 7945HX) and AMD FL1 (Ryzen 9 9955HX).

Feature	Ryzen 9 7945HX	Ryzen 9 9955HX
Socket	FL1	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5200	DDR5-5600+8%
Max RAM Capacity	64 GB	96 GB+50%
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	28	28

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (Ryzen 9 7945HX) vs true (Ryzen 9 9955HX). Both include integrated graphics — Radeon 610M (Ryzen 9 7945HX) and Radeon 610M (Ryzen 9 9955HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX; Ryzen 9 9955HX rivals Core Ultra 9 275HX.

Feature	Ryzen 9 7945HX	Ryzen 9 9955HX
Integrated GPU	Yes	Yes
IGPU Model	Radeon 610M	Radeon 610M
Unlocked	Yes	Yes
AVX-512	Yes	Yes
Virtualization	AMD-V	true
Target Use	Extreme Gaming / Mobile Workstation	—