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 7 3750H

2019

Why buy it

✅Draws 35W instead of 105W, a 70W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (7,990 vs 38,955).
❌Smaller total L3 cache (4 MB vs 64 MB).

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +111.1% higher average FPS across 50 shared CPU benchmark tests.
✅+1500% larger total L3 cache (64 MB vs 4 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Ryzen 7 3750H mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 105W vs 35W.

Ryzen 7 3750H

2019

Ryzen 9 5900X

2020

Why buy it

✅Draws 35W instead of 105W, a 70W reduction.

Why buy it

✅Better for gaming: +111.1% higher average FPS across 50 shared CPU benchmark tests.
✅+1500% larger total L3 cache (64 MB vs 4 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (7,990 vs 38,955).
❌Smaller total L3 cache (4 MB vs 64 MB).

Trade-offs

❌Launch MSRP is still $549 MSRP, while Ryzen 7 3750H mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 105W vs 35W.

Quick Answers

So, is Ryzen 9 5900X better than Ryzen 7 3750H?

Yes. Ryzen 9 5900X is the better overall CPU here. You are getting a 111.1% average FPS lead across 50 shared CPU game tests in our data, 387.5% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 5900X is the better pick here. According to our tests, it delivers 111.1% 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 9 5900X is the better fit. You are getting 387.5% better PassMark, backed by 12 cores and 24 threads. It also carries the larger cache pool with 1500% larger total L3 cache (64 MB vs 4 MB).

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

Ryzen 9 5900X is the smarter buy today. Ryzen 9 5900X is at an unclear MSRP at $549 MSRP versus unclear MSRP, and it gives you a 111.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), 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 9 5900X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019), 1500% larger total L3 cache (64 MB vs 4 MB), and more multi-core headroom with 12 cores / 24 threads instead of 4/8. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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 7 3750H Benchmark Check

Ryzen 9 5900X Benchmark Check

Path of Exile 2

Preset	Ryzen 7 3750H	Ryzen 9 5900X
1080p
low	169 FPS	323 FPS
medium	150 FPS	291 FPS
high	120 FPS	243 FPS
ultra	98 FPS	193 FPS
1440p
low	142 FPS	307 FPS
medium	121 FPS	248 FPS
high	95 FPS	192 FPS
ultra	76 FPS	157 FPS
4K
low	67 FPS	193 FPS
medium	61 FPS	156 FPS
high	48 FPS	115 FPS
ultra	37 FPS	103 FPS

Open Ryzen 7 3750H Open Ryzen 9 5900X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 7 3750H	Ryzen 9 5900X
1080p
low	200 FPS	772 FPS
medium	179 FPS	647 FPS
high	164 FPS	508 FPS
ultra	131 FPS	450 FPS
1440p
low	178 FPS	619 FPS
medium	153 FPS	536 FPS
high	139 FPS	443 FPS
ultra	116 FPS	364 FPS
4K
low	132 FPS	365 FPS
medium	115 FPS	318 FPS
high	92 FPS	289 FPS
ultra	68 FPS	255 FPS

Open Ryzen 7 3750H Open Ryzen 9 5900X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 7 3750H	Ryzen 9 5900X
1080p
low	200 FPS	832 FPS
medium	200 FPS	645 FPS
high	200 FPS	558 FPS
ultra	200 FPS	459 FPS
1440p
low	200 FPS	721 FPS
medium	200 FPS	565 FPS
high	200 FPS	488 FPS
ultra	200 FPS	407 FPS
4K
low	200 FPS	511 FPS
medium	200 FPS	421 FPS
high	200 FPS	374 FPS
ultra	200 FPS	308 FPS

Open Ryzen 7 3750H Open Ryzen 9 5900X

League of Legends

League of Legends

Valorant

Preset	Ryzen 7 3750H	Ryzen 9 5900X
1080p
low	200 FPS	974 FPS
medium	200 FPS	974 FPS
high	200 FPS	934 FPS
ultra	200 FPS	826 FPS
1440p
low	200 FPS	959 FPS
medium	200 FPS	843 FPS
high	200 FPS	726 FPS
ultra	200 FPS	617 FPS
4K
low	200 FPS	694 FPS
medium	200 FPS	621 FPS
high	200 FPS	541 FPS
ultra	200 FPS	437 FPS

Open Ryzen 7 3750H Open Ryzen 9 5900X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 7 3750H and Ryzen 9 5900X

Ryzen 7 3750H

The Ryzen 7 3750H is manufactured by AMD. It was released in 6 January 2019 (6 years ago). It is based on the Picasso (Zen+) (2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 4 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 12 nm process technology. Socket: FP5. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 7,990 points. Launch price was $149.

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.

⚡

Processing Power

The Ryzen 7 3750H packs 4 cores / 8 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 8 more cores. Boost clocks reach 4 GHz on the Ryzen 7 3750H versus 4.8 GHz on the Ryzen 9 5900X — a 18.2% clock advantage for the Ryzen 9 5900X (base: 2.3 GHz vs 3.7 GHz). The Ryzen 7 3750H uses the Picasso (Zen+) (2019) architecture (12 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 7 3750H scores 7,990 against the Ryzen 9 5900X's 38,955 — a 131.9% lead for the Ryzen 9 5900X. L3 cache: 4 MB (total) on the Ryzen 7 3750H vs 64 MB on the Ryzen 9 5900X.

Feature	Ryzen 7 3750H	Ryzen 9 5900X
Cores / Threads	4 / 8	12 / 24+200%
Boost Clock	4 GHz	4.8 GHz+20%
Base Clock	2.3 GHz	3.7 GHz+61%
L3 Cache	4 MB (total)	64 MB+1500%
L2 Cache	512K (per core)	512K (per core)
Process	12 nm	7 nm, 12 nm-42%
Architecture	Picasso (Zen+) (2019)	Vermeer (Zen3) (2020−2022)
PassMark	7,990	38,955+388%
Cinebench R23 Multi	—	21,000
Geekbench 6 Single	—	2,174
Geekbench 6 Multi	—	11,888

🧠

Memory & Platform

The Ryzen 7 3750H uses the FP5 socket (PCIe 3.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 7 3750H	Ryzen 9 5900X
Socket	FP5	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	24

🔧

Advanced Features

Virtualization: not specified (Ryzen 7 3750H) / AMD-V (Ryzen 9 5900X). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.