Ryzen 9 5900X vs Steam Deck OLED APU

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: +160.7% higher average FPS across 19 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 Steam Deck OLED APU mostly shows up through inconsistent older-market listings.
❌5150% higher power demand at 105W vs 2W.

Steam Deck OLED APU

2023

Why buy it

✅Draws 2W instead of 105W, a 103W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 19 shared CPU benchmark tests.
❌Lower PassMark (4,457 vs 38,955).
❌Smaller total L3 cache (4 MB vs 64 MB).

Ryzen 9 5900X

2020

Steam Deck OLED APU

2023

Why buy it

✅Better for gaming: +160.7% higher average FPS across 19 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.

Why buy it

✅Draws 2W instead of 105W, a 103W reduction.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Steam Deck OLED APU mostly shows up through inconsistent older-market listings.
❌5150% higher power demand at 105W vs 2W.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 19 shared CPU benchmark tests.
❌Lower PassMark (4,457 vs 38,955).
❌Smaller total L3 cache (4 MB vs 64 MB).

Quick Answers

So, is Ryzen 9 5900X better than Steam Deck OLED APU?

Yes. Ryzen 9 5900X is the better overall CPU here. You are getting a 160.7% average FPS lead across 19 shared CPU game tests in our data and 774% better PassMark, 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 160.7% more average FPS across 19 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 774% 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 $549 MSRP versus unclear MSRP, and it gives you a 160.7% average FPS lead across 19 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), 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?

Steam Deck OLED APU is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020). That makes it the safer long-term pick.

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

Steam Deck OLED APU Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Steam Deck OLED APU
1080p
low	323 FPS	111 FPS
medium	291 FPS	111 FPS
high	243 FPS	107 FPS
ultra	193 FPS	83 FPS
1440p
low	307 FPS	111 FPS
medium	248 FPS	109 FPS
high	192 FPS	86 FPS
ultra	157 FPS	67 FPS
4K
low	193 FPS	66 FPS
medium	156 FPS	55 FPS
high	115 FPS	43 FPS
ultra	103 FPS	34 FPS

Open Ryzen 9 5900X Open Steam Deck OLED APU

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Steam Deck OLED APU
1080p
low	772 FPS	111 FPS
medium	647 FPS	111 FPS
high	508 FPS	111 FPS
ultra	450 FPS	111 FPS
1440p
low	619 FPS	111 FPS
medium	536 FPS	111 FPS
high	443 FPS	111 FPS
ultra	364 FPS	104 FPS
4K
low	365 FPS	111 FPS
medium	318 FPS	111 FPS
high	289 FPS	86 FPS
ultra	255 FPS	64 FPS

Open Ryzen 9 5900X Open Steam Deck OLED APU

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Steam Deck OLED APU
1080p
low	832 FPS	111 FPS
medium	645 FPS	111 FPS
high	558 FPS	111 FPS
ultra	459 FPS	111 FPS
1440p
low	721 FPS	111 FPS
medium	565 FPS	111 FPS
high	488 FPS	111 FPS
ultra	407 FPS	111 FPS
4K
low	511 FPS	111 FPS
medium	421 FPS	111 FPS
high	374 FPS	111 FPS
ultra	308 FPS	111 FPS

Open Ryzen 9 5900X Open Steam Deck OLED APU

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Steam Deck OLED APU
1080p
low	974 FPS	111 FPS
medium	974 FPS	111 FPS
high	934 FPS	111 FPS
ultra	826 FPS	111 FPS
1440p
low	959 FPS	111 FPS
medium	843 FPS	111 FPS
high	726 FPS	111 FPS
ultra	617 FPS	111 FPS
4K
low	694 FPS	111 FPS
medium	621 FPS	111 FPS
high	541 FPS	111 FPS
ultra	437 FPS	111 FPS

Open Ryzen 9 5900X Open Steam Deck OLED APU

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Steam Deck OLED APU

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.

Steam Deck OLED APU

The Steam Deck OLED APU is manufactured by AMD. It was released in 9 November 2023 (2 years ago). It is based on the Van Gogh (Custom) (2023) architecture. It features 4 cores and 8 threads. Base frequency is 2.4 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB. L2 cache: 2 MB. Built on 6 nm process technology. Thermal design power (TDP): 2 MB + 4 MB. Memory support: DDR4. Passmark benchmark score: 4,457 points. Launch price was $69.

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Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Steam Deck OLED APU offers 4 cores / 8 threads — the Ryzen 9 5900X has 8 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 3.5 GHz on the Steam Deck OLED APU — a 31.3% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.4 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Steam Deck OLED APU uses Van Gogh (Custom) (2023) (6 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Steam Deck OLED APU's 4,457 — a 158.9% lead for the Ryzen 9 5900X. L3 cache: 64 MB on the Ryzen 9 5900X vs 4 MB on the Steam Deck OLED APU.

Feature	Ryzen 9 5900X	Steam Deck OLED APU
Cores / Threads	12 / 24+200%	4 / 8
Boost Clock	4.8 GHz+37%	3.5 GHz
Base Clock	3.7 GHz+54%	2.4 GHz
L3 Cache	64 MB+1500%	4 MB
L2 Cache	512K (per core)	2 MB+300%
Process	7 nm, 12 nm	6 nm-14%
Architecture	Vermeer (Zen3) (2020−2022)	Van Gogh (Custom) (2023)
PassMark	38,955+774%	4,457
Cinebench R23 Multi	21,000	—
Geekbench 6 Single	2,174	—
Geekbench 6 Multi	11,888	—

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Advanced Features

Virtualization: AMD-V (Ryzen 9 5900X) / not specified (Steam Deck OLED APU). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.