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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +38.5% higher average FPS across 4 shared CPU benchmark tests.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (21,000 vs 22,246).
❌Launch MSRP is still $549 MSRP, while Ryzen AI 9 HX PRO 375 mostly shows up through inconsistent older-market listings.
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 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.

Ryzen AI 9 HX PRO 375

2025

Why buy it

✅+5.9% higher Cinebench R23 multi-core.
✅Draws 28W instead of 105W, a 77W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 890M, while Ryzen 9 5900X needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 5900X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 4 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 64 MB).

Ryzen 9 5900X

2020

Ryzen AI 9 HX PRO 375

2025

Why buy it

✅Better for gaming: +38.5% higher average FPS across 4 shared CPU benchmark tests.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Why buy it

✅+5.9% higher Cinebench R23 multi-core.
✅Draws 28W instead of 105W, a 77W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 890M, while Ryzen 9 5900X needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 5900X.

Trade-offs

❌Lower Cinebench R23 multi-core (21,000 vs 22,246).
❌Launch MSRP is still $549 MSRP, while Ryzen AI 9 HX PRO 375 mostly shows up through inconsistent older-market listings.
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 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.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 4 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 64 MB).

Quick Answers

So, is Ryzen AI 9 HX PRO 375 better than Ryzen 9 5900X?

It depends on what matters more to you. For gaming, Ryzen 9 5900X is ahead with a 38.5% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen AI 9 HX PRO 375 pulls ahead with 5.9% better Cinebench R23 multi-core. Ryzen 9 5900X also has the bigger cache pool with 300% larger total L3 cache (64 MB vs 16 MB).

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 better fit. You are getting 5.9% 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 9 5900X makes more sense if price matters more than absolute performance. Ryzen AI 9 HX PRO 375 is at an unclear MSRP at unclear MSRP versus $549 MSRP, and it gives you 5.9% better Cinebench R23 multi-core. The trade-off is that Ryzen 9 5900X is still the better pure gaming CPU with a 38.5% average FPS lead across 4 shared CPU game tests in our data. Ryzen 9 5900X is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Ryzen AI 9 HX PRO 375 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2020), a healthier platform with FP8 and DDR5 instead of AM4, and more multi-core headroom with 12 cores / 24 threads instead of 12/24. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

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.

Ryzen 9 5900X Benchmark Check

Ryzen AI 9 HX PRO 375 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
1080p
low	323 FPS	245 FPS
medium	291 FPS	230 FPS
high	243 FPS	192 FPS
ultra	193 FPS	165 FPS
1440p
low	307 FPS	216 FPS
medium	248 FPS	184 FPS
high	192 FPS	148 FPS
ultra	157 FPS	130 FPS
4K
low	193 FPS	150 FPS
medium	156 FPS	128 FPS
high	115 FPS	98 FPS
ultra	103 FPS	86 FPS

Open Ryzen 9 5900X Open Ryzen AI 9 HX PRO 375

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
1080p
low	772 FPS	261 FPS
medium	647 FPS	220 FPS
high	508 FPS	194 FPS
ultra	450 FPS	173 FPS
1440p
low	619 FPS	232 FPS
medium	536 FPS	203 FPS
high	443 FPS	178 FPS
ultra	364 FPS	151 FPS
4K
low	365 FPS	154 FPS
medium	318 FPS	140 FPS
high	289 FPS	135 FPS
ultra	255 FPS	115 FPS

Open Ryzen 9 5900X Open Ryzen AI 9 HX PRO 375

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
1080p
low	832 FPS	738 FPS
medium	645 FPS	587 FPS
high	558 FPS	508 FPS
ultra	459 FPS	429 FPS
1440p
low	721 FPS	661 FPS
medium	565 FPS	533 FPS
high	488 FPS	455 FPS
ultra	407 FPS	388 FPS
4K
low	511 FPS	482 FPS
medium	421 FPS	403 FPS
high	374 FPS	359 FPS
ultra	308 FPS	301 FPS

Open Ryzen 9 5900X Open Ryzen AI 9 HX PRO 375

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
1080p
low	974 FPS	840 FPS
medium	974 FPS	809 FPS
high	934 FPS	694 FPS
ultra	826 FPS	625 FPS
1440p
low	959 FPS	757 FPS
medium	843 FPS	680 FPS
high	726 FPS	583 FPS
ultra	617 FPS	515 FPS
4K
low	694 FPS	518 FPS
medium	621 FPS	473 FPS
high	541 FPS	420 FPS
ultra	437 FPS	369 FPS

Open Ryzen 9 5900X Open Ryzen AI 9 HX PRO 375

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Ryzen AI 9 HX PRO 375

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

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.

⚡

Processing Power

Both the Ryzen 9 5900X and Ryzen AI 9 HX PRO 375 share an identical 12-core/24-thread configuration. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 5.1 GHz on the Ryzen AI 9 HX PRO 375 — a 6.1% clock advantage for the Ryzen AI 9 HX PRO 375 (base: 3.7 GHz vs 2 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Ryzen AI 9 HX PRO 375 uses Strix Point (2024−2025) (4 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Ryzen AI 9 HX PRO 375's 33,619 — a 14.7% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 21,000 vs 22,246 (5.8% advantage for the Ryzen AI 9 HX PRO 375). Geekbench 6 single-core — the metric most relevant to gaming — records 2,174 vs 2,864, a 27.4% lead for the Ryzen AI 9 HX PRO 375 that directly translates to higher frame rates. Multi-core Geekbench: 11,888 vs 15,012 (23.2% advantage for the Ryzen AI 9 HX PRO 375). L3 cache: 64 MB on the Ryzen 9 5900X vs 16 MB on the Ryzen AI 9 HX PRO 375.

Feature	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
Cores / Threads	12 / 24	12 / 24
Boost Clock	4.8 GHz	5.1 GHz+6%
Base Clock	3.7 GHz+85%	2 GHz
L3 Cache	64 MB+300%	16 MB
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 12 nm	4 nm-43%
Architecture	Vermeer (Zen3) (2020−2022)	Strix Point (2024−2025)
PassMark	38,955+16%	33,619
Cinebench R23 Multi	21,000	22,246+6%
Geekbench 6 Single	2,174	2,864+32%
Geekbench 6 Multi	11,888	15,012+26%

🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Ryzen AI 9 HX PRO 375 uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus LPDDR5x-8000 on the Ryzen AI 9 HX PRO 375 — the Ryzen AI 9 HX PRO 375 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen AI 9 HX PRO 375 supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 5900X) vs 16 (Ryzen AI 9 HX PRO 375) — the Ryzen 9 5900X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and FP8,FP7 (Ryzen AI 9 HX PRO 375).

Feature	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
Socket	AM4	FP8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	LPDDR5x-8000+25%
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	24+50%	16

🔧

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 (Ryzen 9 5900X) vs AMD-V, IOMMU (Ryzen AI 9 HX PRO 375). The Ryzen AI 9 HX PRO 375 includes integrated graphics (Radeon 890M), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Ryzen 9 5900X targets Workstation, Ryzen AI 9 HX PRO 375 targets Mobile Workstation / High-end Gaming. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Ryzen AI 9 HX PRO 375 rivals Core i9-14900HX.

Feature	Ryzen 9 5900X	Ryzen AI 9 HX PRO 375
Integrated GPU	No	Yes
IGPU Model	—	Radeon 890M
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	AMD-V	AMD-V, IOMMU
Target Use	Workstation	Mobile Workstation / High-end Gaming

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Ryzen AI 9 HX PRO 375 debuted at $0. On MSRP ($549 vs $0), the Ryzen AI 9 HX PRO 375 is $549 cheaper.