Ryzen AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX

CPU

GPU

Ryzen AI 9 HX PRO 375

12 Cores24 Thrd28 WWMax: 5.1 GHz2025

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Ryzen Threadripper PRO 3945WX

12 Cores24 Thrd280 WWMax: 4.3 GHz2020

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Ryzen AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX Performance Spectrum

Ryzen AI 9 HX PRO 375

12 / 24

33,619

+0.5%

Ryzen Threadripper PRO 7945WX

Ryzen 9 9950X

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 3945WX

12 / 24

33,455

0.0%

Ryzen Threadripper PRO 7945WX

Ryzen 9 9950X

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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.

Ryzen AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX 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 AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX: Pros, Cons & Final Verdict

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

Ryzen AI 9 HX PRO 375

2025

Why buy it

✅+20.2% higher Cinebench R23 multi-core.
✅Draws 28W instead of 280W, a 252W reduction.
✅Newer platform on FP8 with DDR5 support instead of sWRX8 and DDR4.
✅Integrated graphics onboard with Radeon 890M, while Ryzen Threadripper PRO 3945WX needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen Threadripper PRO 3945WX.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 3945WX across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 64 MB).
❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 3945WX, which brings 12 cores / 24 threads and 128 PCIe lanes.

Ryzen Threadripper PRO 3945WX

2020

Why buy it

✅Better for gaming: +16.5% higher average FPS across 50 shared CPU benchmark tests.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 128 PCIe lanes vs 16.
✅700% more PCIe lanes (128 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (18,500 vs 22,246).
❌Launch MSRP is still $1,149 MSRP, while Ryzen AI 9 HX PRO 375 mostly shows up through inconsistent older-market listings.
❌900% higher power demand at 280W vs 28W.
❌Older platform position on sWRX8 with DDR4, while Ryzen AI 9 HX PRO 375 moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen AI 9 HX PRO 375 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen AI 9 HX PRO 375 better than Ryzen Threadripper PRO 3945WX?

Not really, because they are built for different jobs. Ryzen Threadripper PRO 3945WX makes more sense for workstation-style multi-core throughput, while Ryzen AI 9 HX PRO 375 is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Ryzen AI 9 HX PRO 375 is the stronger fit. You are getting 20.2% better Cinebench R23 multi-core, backed by 12 cores and 24 threads.

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

Ryzen AI 9 HX PRO 375 is still the faster CPU overall, but Ryzen Threadripper PRO 3945WX is easier to justify if budget matters more than peak performance. Ryzen AI 9 HX PRO 375 comes in at an unclear MSRP at unclear MSRP versus $1,149 MSRP, and it still gives you 20.2% better Cinebench R23 multi-core. The compromise is that Ryzen Threadripper PRO 3945WX is still the better pure gaming CPU with a 16.5% average FPS lead across 50 shared CPU game tests in our data. Ryzen Threadripper PRO 3945WX is also 100.0% better value on MSRP (29.1 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen AI 9 HX PRO 375 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2020), a healthier platform with FP8 and DDR5 instead of sWRX8, more multi-core headroom with 12 cores / 24 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX Technical Specifications

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

Ryzen AI 9 HX PRO 375

The Ryzen AI 9 HX PRO 375 is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Strix Point (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 2 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 33,619 points. Launch price was $499.

Ryzen Threadripper PRO 3945WX

The Ryzen Threadripper PRO 3945WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 12 cores and 24 threads. Base frequency is 4 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 33,455 points. Launch price was $499.

⚡

Processing Power

Both the Ryzen AI 9 HX PRO 375 and Ryzen Threadripper PRO 3945WX share an identical 12-core/24-thread configuration. Boost clocks reach 5.1 GHz on the Ryzen AI 9 HX PRO 375 versus 4.3 GHz on the Ryzen Threadripper PRO 3945WX — a 17% clock advantage for the Ryzen AI 9 HX PRO 375 (base: 2 GHz vs 4 GHz). The Ryzen AI 9 HX PRO 375 uses the Strix Point (2024−2025) architecture (4 nm), while the Ryzen Threadripper PRO 3945WX uses Castle Peak (2020) (7 nm, 12 nm). In PassMark, the Ryzen AI 9 HX PRO 375 scores 33,619 against the Ryzen Threadripper PRO 3945WX's 33,455 — a 0.5% lead for the Ryzen AI 9 HX PRO 375. Cinebench R23 multi-core: 22,246 vs 18,500 (18.4% advantage for the Ryzen AI 9 HX PRO 375). Geekbench 6 single-core — the metric most relevant to gaming — records 2,864 vs 1,652, a 53.7% lead for the Ryzen AI 9 HX PRO 375 that directly translates to higher frame rates. Multi-core Geekbench: 15,012 vs 11,500 (26.5% advantage for the Ryzen AI 9 HX PRO 375). L3 cache: 16 MB on the Ryzen AI 9 HX PRO 375 vs 64 MB on the Ryzen Threadripper PRO 3945WX.

Feature	Ryzen AI 9 HX PRO 375	Ryzen Threadripper PRO 3945WX
Cores / Threads	12 / 24	12 / 24
Boost Clock	5.1 GHz+19%	4.3 GHz
Base Clock	2 GHz	4 GHz+100%
L3 Cache	16 MB	64 MB+300%
L2 Cache	1 MB (per core)+100%	512 kB (per core)
Process	4 nm-43%	7 nm, 12 nm
Architecture	Strix Point (2024−2025)	Castle Peak (2020)
PassMark	33,619	33,455
Cinebench R23 Multi	22,246+20%	18,500
Geekbench 6 Single	2,864+73%	1,652
Geekbench 6 Multi	15,012+31%	11,500

🧠

Memory & Platform

The Ryzen AI 9 HX PRO 375 uses the FP8 socket (PCIe 4.0), while the Ryzen Threadripper PRO 3945WX uses sWRX8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-8000 on the Ryzen AI 9 HX PRO 375 versus DDR4-3200 on the Ryzen Threadripper PRO 3945WX — the Ryzen AI 9 HX PRO 375 supports 150% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 3945WX supports up to 2048 GB of RAM compared to 256 GB — 700% more capacity for professional workloads. Memory channels: 2 (Ryzen AI 9 HX PRO 375) vs 8 (Ryzen Threadripper PRO 3945WX). PCIe lanes: 16 (Ryzen AI 9 HX PRO 375) vs 128 (Ryzen Threadripper PRO 3945WX) — the Ryzen Threadripper PRO 3945WX offers 112 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FP8,FP7 (Ryzen AI 9 HX PRO 375) and WRX80 (Ryzen Threadripper PRO 3945WX).

Feature	Ryzen AI 9 HX PRO 375	Ryzen Threadripper PRO 3945WX
Socket	FP8	sWRX8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	LPDDR5x-8000+150%	DDR4-3200
Max RAM Capacity	256 GB	2048 GB+700%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	16	128+700%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen AI 9 HX PRO 375 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V, IOMMU (Ryzen AI 9 HX PRO 375) vs AMD-V (Ryzen Threadripper PRO 3945WX). The Ryzen AI 9 HX PRO 375 includes integrated graphics (Radeon 890M), while the Ryzen Threadripper PRO 3945WX requires a dedicated GPU. Primary use case: Ryzen AI 9 HX PRO 375 targets Mobile Workstation / High-end Gaming, Ryzen Threadripper PRO 3945WX targets Professional Workstation. Direct competitor: Ryzen AI 9 HX PRO 375 rivals Core i9-14900HX; Ryzen Threadripper PRO 3945WX rivals Xeon w5-2455X.

Feature	Ryzen AI 9 HX PRO 375	Ryzen Threadripper PRO 3945WX
Integrated GPU	Yes	No
IGPU Model	Radeon 890M	—
Unlocked	Yes	Yes
AVX-512	Yes	No
Virtualization	AMD-V, IOMMU	AMD-V
Target Use	Mobile Workstation / High-end Gaming	Professional Workstation

💰

Value Analysis

At launch, the Ryzen AI 9 HX PRO 375 was priced at $0, while the Ryzen Threadripper PRO 3945WX came in at $1149. On launch pricing ($0 vs $1149), Ryzen AI 9 HX PRO 375 was $1149 cheaper.

Feature	Ryzen AI 9 HX PRO 375	Ryzen Threadripper PRO 3945WX
MSRP	$0-100%	$1149
Performance per Dollar	—	29.1
Release Date	2025	2020

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