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 PRO 3900

2019

Why buy it

✅+6.1% higher Cinebench R23 multi-core.
✅+100% larger total L3 cache (64 MB vs 32 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen AI Max PRO 385.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen AI Max PRO 385 across 50 shared CPU benchmark tests.
❌Launch MSRP is still $499 MSRP, while Ryzen AI Max PRO 385 mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.
❌Older platform position on AM4 with DDR4, while Ryzen AI Max PRO 385 moves to FP11 and DDR5.
❌No integrated graphics, while Ryzen AI Max PRO 385 can still boot and troubleshoot without a discrete GPU.

Ryzen AI Max PRO 385

2025

Why buy it

✅Better for gaming: +11.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 65W, a 10W reduction.
✅Newer platform on FP11 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 8050S, while Ryzen 9 PRO 3900 needs a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (16,500 vs 17,500).
❌Smaller total L3 cache (32 MB vs 64 MB).
❌No boxed cooler included, unlike Ryzen 9 PRO 3900.

Ryzen 9 PRO 3900

2019

Ryzen AI Max PRO 385

2025

Why buy it

✅+6.1% higher Cinebench R23 multi-core.
✅+100% larger total L3 cache (64 MB vs 32 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen AI Max PRO 385.

Why buy it

✅Better for gaming: +11.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 65W, a 10W reduction.
✅Newer platform on FP11 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 8050S, while Ryzen 9 PRO 3900 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen AI Max PRO 385 across 50 shared CPU benchmark tests.
❌Launch MSRP is still $499 MSRP, while Ryzen AI Max PRO 385 mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.
❌Older platform position on AM4 with DDR4, while Ryzen AI Max PRO 385 moves to FP11 and DDR5.
❌No integrated graphics, while Ryzen AI Max PRO 385 can still boot and troubleshoot without a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (16,500 vs 17,500).
❌Smaller total L3 cache (32 MB vs 64 MB).
❌No boxed cooler included, unlike Ryzen 9 PRO 3900.

Quick Answers

So, is Ryzen AI Max PRO 385 better than Ryzen 9 PRO 3900?

It depends on what matters more to you. For gaming, Ryzen AI Max PRO 385 is ahead with a 11.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 PRO 3900 pulls ahead with 6.1% better Cinebench R23 multi-core. Ryzen 9 PRO 3900 also has the bigger cache pool with 100% larger total L3 cache (64 MB vs 32 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 9 PRO 3900 is the better fit. You are getting 6.1% better Cinebench R23 multi-core, backed by 12 cores and 24 threads. It also carries the larger cache pool with 100% larger total L3 cache (64 MB vs 32 MB).

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

Ryzen AI Max PRO 385 is still the faster CPU overall, but Ryzen 9 PRO 3900 makes more sense if price matters more than absolute performance. Ryzen AI Max PRO 385 is at an unclear MSRP at unclear MSRP versus $499 MSRP, and it gives you a 11.8% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Ryzen 9 PRO 3900 is still stronger for heavier multi-core work with 6.1% better Cinebench R23 multi-core. Ryzen 9 PRO 3900 is also 100.0% better value on MSRP (62.6 vs 0.0 PassMark/$), 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 Max PRO 385 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2019) and a healthier platform with FP11 and DDR5 instead of AM4. 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 PRO 3900 Benchmark Check

Ryzen AI Max PRO 385 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
1080p
low	188 FPS	277 FPS
medium	150 FPS	243 FPS
high	122 FPS	209 FPS
ultra	99 FPS	179 FPS
1440p
low	156 FPS	233 FPS
medium	121 FPS	185 FPS
high	96 FPS	153 FPS
ultra	80 FPS	134 FPS
4K
low	83 FPS	162 FPS
medium	69 FPS	129 FPS
high	54 FPS	100 FPS
ultra	44 FPS	86 FPS

Open Ryzen 9 PRO 3900 Open Ryzen AI Max PRO 385

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
1080p
low	589 FPS	684 FPS
medium	510 FPS	565 FPS
high	414 FPS	460 FPS
ultra	368 FPS	417 FPS
1440p
low	506 FPS	591 FPS
medium	446 FPS	514 FPS
high	374 FPS	422 FPS
ultra	312 FPS	360 FPS
4K
low	317 FPS	352 FPS
medium	283 FPS	311 FPS
high	256 FPS	286 FPS
ultra	229 FPS	251 FPS

Open Ryzen 9 PRO 3900 Open Ryzen AI Max PRO 385

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
1080p
low	781 FPS	788 FPS
medium	690 FPS	788 FPS
high	615 FPS	706 FPS
ultra	539 FPS	594 FPS
1440p
low	664 FPS	788 FPS
medium	540 FPS	644 FPS
high	481 FPS	559 FPS
ultra	419 FPS	472 FPS
4K
low	471 FPS	562 FPS
medium	370 FPS	459 FPS
high	327 FPS	408 FPS
ultra	264 FPS	338 FPS

Open Ryzen 9 PRO 3900 Open Ryzen AI Max PRO 385

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
1080p
low	781 FPS	788 FPS
medium	781 FPS	788 FPS
high	781 FPS	788 FPS
ultra	706 FPS	781 FPS
1440p
low	781 FPS	788 FPS
medium	710 FPS	768 FPS
high	609 FPS	673 FPS
ultra	538 FPS	590 FPS
4K
low	574 FPS	609 FPS
medium	516 FPS	541 FPS
high	452 FPS	486 FPS
ultra	398 FPS	426 FPS

Open Ryzen 9 PRO 3900 Open Ryzen AI Max PRO 385

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 PRO 3900 and Ryzen AI Max PRO 385

Ryzen 9 PRO 3900

The Ryzen 9 PRO 3900 is manufactured by AMD. It was released in 30 September 2019 (6 years ago). It is based on the Zen 2 (2017−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.1 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 6 MB. Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 31,251 points. Launch price was $499.

Ryzen AI Max PRO 385

The Ryzen AI Max PRO 385 is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Strix Halo (2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP11. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 31,508 points. Launch price was $499.

⚡

Processing Power

The Ryzen 9 PRO 3900 packs 12 cores / 24 threads, while the Ryzen AI Max PRO 385 offers 8 cores / 16 threads — the Ryzen 9 PRO 3900 has 4 more cores. Boost clocks reach 4.3 GHz on the Ryzen 9 PRO 3900 versus 5 GHz on the Ryzen AI Max PRO 385 — a 15.1% clock advantage for the Ryzen AI Max PRO 385 (base: 3.1 GHz vs 3.6 GHz). The Ryzen 9 PRO 3900 uses the Zen 2 (2017−2020) architecture (7 nm, 12 nm), while the Ryzen AI Max PRO 385 uses Strix Halo (2025) (4 nm). In PassMark, the Ryzen 9 PRO 3900 scores 31,251 against the Ryzen AI Max PRO 385's 31,508 — a 0.8% lead for the Ryzen AI Max PRO 385. Cinebench R23 multi-core: 17,500 vs 16,500 (5.9% advantage for the Ryzen 9 PRO 3900). Geekbench 6 single-core — the metric most relevant to gaming — records 1,688 vs 2,886, a 52.4% lead for the Ryzen AI Max PRO 385 that directly translates to higher frame rates. Multi-core Geekbench: 10,000 vs 14,136 (34.3% advantage for the Ryzen AI Max PRO 385). L3 cache: 64 MB on the Ryzen 9 PRO 3900 vs 32 MB (total) on the Ryzen AI Max PRO 385.

Feature	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.3 GHz	5 GHz+16%
Base Clock	3.1 GHz	3.6 GHz+16%
L3 Cache	64 MB+100%	32 MB (total)
L2 Cache	6 MB+500%	1 MB (per core)
Process	7 nm, 12 nm	4 nm-43%
Architecture	Zen 2 (2017−2020)	Strix Halo (2025)
PassMark	31,251	31,508
Cinebench R23 Multi	17,500+6%	16,500
Geekbench 6 Single	1,688	2,886+71%
Geekbench 6 Multi	10,000	14,136+41%

🧠

Memory & Platform

The Ryzen 9 PRO 3900 uses the AM4 socket (PCIe 4.0), while the Ryzen AI Max PRO 385 uses FP11 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 PRO 3900 versus LPDDR5x-8000 on the Ryzen AI Max PRO 385 — the Ryzen AI Max PRO 385 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Memory channels: 2 (Ryzen 9 PRO 3900) vs 8 (Ryzen AI Max PRO 385). PCIe lanes: 24 (Ryzen 9 PRO 3900) vs 20 (Ryzen AI Max PRO 385) — the Ryzen 9 PRO 3900 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550,X470,B450 (Ryzen 9 PRO 3900) and Strix Halo platform (Ryzen AI Max PRO 385).

Feature	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
Socket	AM4	FP11
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	LPDDR5x-8000+25%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	8+300%
ECC Support	Yes	No
PCIe Lanes	24+20%	20

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen AI Max PRO 385 supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. The Ryzen AI Max PRO 385 includes integrated graphics (Radeon 8050S), while the Ryzen 9 PRO 3900 requires a dedicated GPU. Primary use case: Ryzen 9 PRO 3900 targets Professional Content Creation, Ryzen AI Max PRO 385 targets Enterprise AI Mobile. Direct competitor: Ryzen 9 PRO 3900 rivals Core i9-10900; Ryzen AI Max PRO 385 rivals M3 Max.

Feature	Ryzen 9 PRO 3900	Ryzen AI Max PRO 385
Integrated GPU	No	Yes
IGPU Model	—	Radeon 8050S
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	AMD-V	AMD-V
Target Use	Professional Content Creation	Enterprise AI Mobile