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 3900X

2019

Why buy it

✅Better for gaming: +35.3% higher average FPS across 50 shared CPU benchmark tests.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅Costs $1 less on MSRP ($499 MSRP vs $500 MSRP).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen AI 9 HX PRO 370.

Trade-offs

❌Lower PassMark (32,517 vs 32,841).
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 with DDR4, while Ryzen AI 9 HX PRO 370 moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen AI 9 HX PRO 370 can still boot and troubleshoot without a discrete GPU.

Ryzen AI 9 HX PRO 370

2025

Why buy it

✅+1% higher PassMark.
✅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 3900X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 64 MB).
❌
0.2% HIGHER MSRP
$500 MSRPvs$499 MSRP
❌No boxed cooler included, unlike Ryzen 9 3900X.

Ryzen 9 3900X

2019

Ryzen AI 9 HX PRO 370

2025

Why buy it

✅Better for gaming: +35.3% higher average FPS across 50 shared CPU benchmark tests.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅Costs $1 less on MSRP ($499 MSRP vs $500 MSRP).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen AI 9 HX PRO 370.

Why buy it

✅+1% higher PassMark.
✅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 3900X needs a discrete GPU.

Trade-offs

❌Lower PassMark (32,517 vs 32,841).
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 with DDR4, while Ryzen AI 9 HX PRO 370 moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen AI 9 HX PRO 370 can still boot and troubleshoot without a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 64 MB).
❌
0.2% HIGHER MSRP
$500 MSRPvs$499 MSRP
❌No boxed cooler included, unlike Ryzen 9 3900X.

Quick Answers

So, is Ryzen AI 9 HX PRO 370 better than Ryzen 9 3900X?

It depends on what matters more to you. For gaming, Ryzen 9 3900X is ahead with a 35.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen AI 9 HX PRO 370 pulls ahead with 1% better PassMark. Ryzen 9 3900X 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 370 is the better fit. You are getting 1% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen AI 9 HX PRO 370 is the smarter buy today. Ryzen AI 9 HX PRO 370 is 0.2% more expensive on MSRP at $500 MSRP versus $499 MSRP, and it gives you 1% better PassMark. The trade-off is that Ryzen 9 3900X is still the better pure gaming CPU with a 35.3% average FPS lead across 50 shared CPU game tests in our data. It is also 0.8% better value on MSRP (65.7 vs 65.2 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen AI 9 HX PRO 370 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2019), 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 3900X Benchmark Check

Ryzen AI 9 HX PRO 370 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
1080p
low	209 FPS	245 FPS
medium	170 FPS	230 FPS
high	140 FPS	195 FPS
ultra	114 FPS	167 FPS
1440p
low	171 FPS	213 FPS
medium	131 FPS	181 FPS
high	104 FPS	148 FPS
ultra	86 FPS	130 FPS
4K
low	92 FPS	146 FPS
medium	77 FPS	124 FPS
high	61 FPS	96 FPS
ultra	49 FPS	84 FPS

Open Ryzen 9 3900X Open Ryzen AI 9 HX PRO 370

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
1080p
low	781 FPS	278 FPS
medium	654 FPS	234 FPS
high	510 FPS	207 FPS
ultra	447 FPS	182 FPS
1440p
low	648 FPS	246 FPS
medium	552 FPS	215 FPS
high	452 FPS	189 FPS
ultra	369 FPS	159 FPS
4K
low	380 FPS	164 FPS
medium	326 FPS	149 FPS
high	293 FPS	143 FPS
ultra	258 FPS	121 FPS

Open Ryzen 9 3900X Open Ryzen AI 9 HX PRO 370

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
1080p
low	813 FPS	813 FPS
medium	794 FPS	641 FPS
high	730 FPS	559 FPS
ultra	647 FPS	463 FPS
1440p
low	707 FPS	712 FPS
medium	583 FPS	570 FPS
high	522 FPS	491 FPS
ultra	459 FPS	412 FPS
4K
low	503 FPS	508 FPS
medium	403 FPS	418 FPS
high	361 FPS	374 FPS
ultra	292 FPS	314 FPS

Open Ryzen 9 3900X Open Ryzen AI 9 HX PRO 370

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
1080p
low	813 FPS	821 FPS
medium	813 FPS	821 FPS
high	813 FPS	751 FPS
ultra	813 FPS	682 FPS
1440p
low	813 FPS	796 FPS
medium	813 FPS	715 FPS
high	714 FPS	615 FPS
ultra	619 FPS	547 FPS
4K
low	669 FPS	544 FPS
medium	594 FPS	496 FPS
high	525 FPS	442 FPS
ultra	437 FPS	390 FPS

Open Ryzen 9 3900X Open Ryzen AI 9 HX PRO 370

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 3900X and Ryzen AI 9 HX PRO 370

Ryzen 9 3900X

The Ryzen 9 3900X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.8 GHz, with boost up to 4.6 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 125 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 32,517 points. Launch price was $499.

Ryzen AI 9 HX PRO 370

The Ryzen AI 9 HX PRO 370 is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Strix Point-HX PRO (Zen 5/5c) (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: 32,841 points. Launch price was $499.

⚡

Processing Power

Both the Ryzen 9 3900X and Ryzen AI 9 HX PRO 370 share an identical 12-core/24-thread configuration. Boost clocks reach 4.6 GHz on the Ryzen 9 3900X versus 5.1 GHz on the Ryzen AI 9 HX PRO 370 — a 10.3% clock advantage for the Ryzen AI 9 HX PRO 370 (base: 3.8 GHz vs 2 GHz). The Ryzen 9 3900X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen AI 9 HX PRO 370 uses Strix Point-HX PRO (Zen 5/5c) (2025) (4 nm). In PassMark, the Ryzen 9 3900X scores 32,517 against the Ryzen AI 9 HX PRO 370's 32,841 — a 1% lead for the Ryzen AI 9 HX PRO 370. L3 cache: 64 MB on the Ryzen 9 3900X vs 16 MB on the Ryzen AI 9 HX PRO 370.

Feature	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
Cores / Threads	12 / 24	12 / 24
Boost Clock	4.6 GHz	5.1 GHz+11%
Base Clock	3.8 GHz+90%	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	Matisse (Zen 2) (2019−2020)	Strix Point-HX PRO (Zen 5/5c) (2025)
PassMark	32,517	32,841
Geekbench 6 Single	1,300	—
Geekbench 6 Multi	12,000	—

🧠

Memory & Platform

The Ryzen 9 3900X uses the AM4 socket (PCIe 4.0), while the Ryzen AI 9 HX PRO 370 uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900X versus LPDDR5X-8000 on the Ryzen AI 9 HX PRO 370 — the Ryzen AI 9 HX PRO 370 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 3900X supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 3900X) vs 20 (Ryzen AI 9 HX PRO 370) — the Ryzen 9 3900X offers 4 more lanes for additional GPUs or NVMe drives.

Feature	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
Socket	AM4	FP8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	LPDDR5X-8000+25%
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	24+20%	20

🔧

Advanced Features

Only the Ryzen 9 3900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen AI 9 HX PRO 370 supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. The Ryzen AI 9 HX PRO 370 includes integrated graphics (Radeon 890M), while the Ryzen 9 3900X requires a dedicated GPU. Primary use case: Ryzen 9 3900X targets Workstation, Ryzen AI 9 HX PRO 370 targets Mobile Workstation / AI.

Feature	Ryzen 9 3900X	Ryzen AI 9 HX PRO 370
Integrated GPU	No	Yes
IGPU Model	None	Radeon 890M
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	AMD-V	AMD-V
Target Use	Workstation	Mobile Workstation / AI

💰

Value Analysis

The Ryzen 9 3900X launched at $499 MSRP, while the Ryzen AI 9 HX PRO 370 debuted at $500. On MSRP ($499 vs $500), the Ryzen 9 3900X is $1 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 3900X delivers 65.2 pts/$ vs 65.7 pts/$ for the Ryzen AI 9 HX PRO 370 — making the Ryzen AI 9 HX PRO 370 the 0.8% better value option.