Ryzen 9 9955HX vs Ryzen Threadripper PRO 9945WX

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 9955HX vs Ryzen Threadripper PRO 9945WX 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 9955HX vs Ryzen Threadripper PRO 9945WX: 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 9955HX

2025

Why buy it

✅Draws 55W instead of 350W, a 295W reduction.
✅Integrated graphics onboard with Radeon 610M, while Ryzen Threadripper PRO 9945WX needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 50 shared CPU benchmark tests.
❌Lower PassMark (55,711 vs 56,854).
❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 9945WX, which brings 12 cores / 24 threads and 128 PCIe lanes.

Ryzen Threadripper PRO 9945WX

2025

Why buy it

✅Better for gaming: +6.8% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $1,340 MSRP, while Ryzen 9 9955HX mostly shows up through inconsistent older-market listings.
❌536.4% higher power demand at 350W vs 55W.
❌No integrated graphics, while Ryzen 9 9955HX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen Threadripper PRO 9945WX better than Ryzen 9 9955HX?

Not really, because they are built for different jobs. Ryzen Threadripper PRO 9945WX makes more sense for workstation-style multi-core throughput, while Ryzen 9 9955HX is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper PRO 9945WX is the better pick. According to our tests, it delivers 6.8% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen Threadripper PRO 9945WX is the stronger fit. You are getting 2.1% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen Threadripper PRO 9945WX is the better buy right now. Ryzen Threadripper PRO 9945WX comes in at an unclear MSRP at $1,340 MSRP versus unclear MSRP, and it still gives you a 6.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (42.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen Threadripper PRO 9945WX is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Ryzen 9 9955HX vs Ryzen Threadripper PRO 9945WX Technical Specifications

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

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.

Ryzen Threadripper PRO 9945WX

The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 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: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 56,854 points. Launch price was $2,000.

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Processing Power

The Ryzen 9 9955HX packs 16 cores / 32 threads, while the Ryzen Threadripper PRO 9945WX offers 12 cores / 24 threads — the Ryzen 9 9955HX has 4 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX — identical boost frequencies (base: 2.5 GHz vs 4.7 GHz). The Ryzen 9 9955HX uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the Ryzen 9 9955HX scores 55,711 against the Ryzen Threadripper PRO 9945WX's 56,854 — a 2% lead for the Ryzen Threadripper PRO 9945WX. Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
Cores / Threads	16 / 32+33%	12 / 24
Boost Clock	5.4 GHz	5.4 GHz
Base Clock	2.5 GHz	4.7 GHz+88%
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Fire Range-HX (Zen 5) (2025)	Shimada Peak (2025)
PassMark	55,711	56,854+2%
Cinebench R23 Multi	38,010	—
Geekbench 6 Single	3,219	—
Geekbench 6 Multi	19,563	—

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Memory & Platform

The Ryzen 9 9955HX uses the FL1 socket (PCIe 5.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Ryzen 9 9955HX versus 6400 on the Ryzen Threadripper PRO 9945WX — the Ryzen Threadripper PRO 9945WX supports 14.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 9945WX supports up to 2048 GB of RAM compared to 96 GB — 2033.3% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 9955HX) vs 8 (Ryzen Threadripper PRO 9945WX). PCIe lanes: 28 (Ryzen 9 9955HX) vs 128 (Ryzen Threadripper PRO 9945WX) — the Ryzen Threadripper PRO 9945WX offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FL1 (Ryzen 9 9955HX) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).

Feature	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
Socket	FL1	sTR5
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5600	6400+14%
Max RAM Capacity	96 GB	2048 GB+2033%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	128+357%

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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: true (Ryzen 9 9955HX) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). The Ryzen 9 9955HX includes integrated graphics (Radeon 610M), while the Ryzen Threadripper PRO 9945WX requires a dedicated GPU. Direct competitor: Ryzen 9 9955HX rivals Core Ultra 9 275HX; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.