Radeon Pro V340 MxGPU vs Radeon Steam Deck 8CU

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Radeon Pro V340 MxGPU vs Radeon Steam Deck 8CU FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

Radeon Pro V340 MxGPU vs Radeon Steam Deck 8CU: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon Pro V340 MxGPU

2018

Why buy it

✅12.8% more average FPS across 45 tracked games in our benchmark data.

Trade-offs

❌2018 hardware with 2 GB of VRAM already sits in legacy territory for modern games.
❌900% higher power demand at 300W vs 30W.

Radeon Steam Deck 8CU

2023

Why buy it

✅Better long-term bet: RDNA 2 (2022−2023) on 6nm gives it a newer hardware base for upcoming games.
✅Draws 30W instead of 300W, a 270W reduction.
✅More future proof: RDNA 2 (2022−2023) on 6nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon Pro V340 MxGPU across 45 tracked games in our benchmark data.

Quick Answers

Which GPU is faster for gaming right now?

Radeon Pro V340 MxGPU is the faster gaming card right now. In our data, it leads by 12.8% in average FPS across 45 tracked games in our benchmark data. PassMark G3D leans toward Radeon Steam Deck 8CU instead at 3,000 vs 2,853, so for this question the real-game FPS result matters more than the synthetic split.

Which GPU is the safer long-term pick for 2026 and beyond?

Radeon Steam Deck 8CU is the safer long-term pick for 2026 and beyond. The case is simple: a 6nm process instead of 14nm and a newer 2023 generation instead of 2018. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon Steam Deck 8CU makes the most sense today based on the pricing and value data we have for this matchup. Radeon Pro V340 MxGPU still makes more sense if max raw gaming performance matters more than value.

Radeon Pro V340 MxGPU vs Radeon Steam Deck 8CU Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon Pro V340 MxGPU

The Radeon Pro V340 MxGPU is manufactured by AMD. It was released in August 26 2018. It features the GCN 5.0 architecture. The core clock ranges from 1000 MHz to 1500 MHz. It has 3584 ×2 shading units. The thermal design power (TDP) is 300W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,853 points.

Radeon Steam Deck 8CU

The Radeon Steam Deck 8CU is manufactured by AMD. It was released in November 9 2023. It features the RDNA 2 architecture. The boost clock speed is 1900 MHz. It has 512 shading units. The thermal design power (TDP) is 30W. Manufactured using 6 nm process technology. G3D Mark benchmark score: 3,000 points.

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Graphics Performance

In G3D Mark, the Radeon Pro V340 MxGPU scores 2,853 versus the Radeon Steam Deck 8CU's 3,000 — the Radeon Steam Deck 8CU leads by 5.2%. The Radeon Pro V340 MxGPU is built on GCN 5.0 while the Radeon Steam Deck 8CU uses RDNA 2, both on 14 nm vs 6 nm. Shader units: 3,584 (Radeon Pro V340 MxGPU) vs 512 (Radeon Steam Deck 8CU). Boost clocks: 1500 MHz vs 1900 MHz.

Feature	Radeon Pro V340 MxGPU	Radeon Steam Deck 8CU
G3D Mark Score	2,853	3,000+5%
Architecture	GCN 5.0	RDNA 2
Process Node	14 nm	6 nm
Shading Units	3584 ×2+600%	512
Boost Clock	1500 MHz	1900 MHz+27%
L1 Cache	896 KB+75%	512 KB
L2 Cache	4 MB+300%	1 MB
Frame Generation	FSR upscaling	FSR upscaling + RSR

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Advanced Features (DLSS/FSR)

Feature	Radeon Pro V340 MxGPU	Radeon Steam Deck 8CU
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

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Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 64-bit on the Radeon Pro V340 MxGPU and 64-bit on the Radeon Steam Deck 8CU. L2 Cache: 4 MB (Radeon Pro V340 MxGPU) vs 1 MB (Radeon Steam Deck 8CU) — the Radeon Pro V340 MxGPU has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon Pro V340 MxGPU	Radeon Steam Deck 8CU
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	4 MB+300%	1 MB

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Power & Dimensions

The Radeon Pro V340 MxGPU draws 300W versus the Radeon Steam Deck 8CU's 30W — a 163.6% difference. The Radeon Steam Deck 8CU is more power-efficient. Recommended PSU: 350W (Radeon Pro V340 MxGPU) vs 350W (Radeon Steam Deck 8CU). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Radeon Pro V340 MxGPU	Radeon Steam Deck 8CU
TDP	300W	30W-90%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	—	1mm
Slots	—	0
Perf/Watt	9.5	100.0+953%

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Value Analysis

The newer card here is Radeon Steam Deck 8CU (2023 vs 2018).

Feature	Radeon Pro V340 MxGPU	Radeon Steam Deck 8CU
MSRP	—	$0
Codename	Vega 10	RDNA 2 Sephiroth
Release	August 26 2018	November 9 2023
Ranking	#592	#480

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