Radeon 840M vs Radeon RX 550X (móvel)

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 840M vs Radeon RX 550X (móvel) 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 840M vs Radeon RX 550X (móvel): 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 840M

2024

Why buy it

✅50.8% more average FPS across 29 tracked games in our benchmark data.
✅Better long-term bet: RDNA 3+ (2024) on 4nm gives it a newer hardware base for upcoming games.
✅Draws 30W instead of 50W, a 20W reduction.

Trade-offs

❌No equivalent frame-generation stack like FSR Frame Generation (2023).
❌Lower G3D Mark per dollar, at 0 vs 108.6 G3D/$ (Unknown MSRP vs $35 MSRP).

Radeon RX 550X (móvel)

2018

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 108.6 vs 0 G3D/$ ($35 MSRP vs Unknown MSRP).
✅Access to a newer frame-generation stack with FSR Frame Generation (2023).

Trade-offs

❌Lower average FPS than Radeon 840M across 29 tracked games in our benchmark data.
❌Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌66.7% higher power demand at 50W vs 30W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon 840M is the faster gaming card right now. In our data, it leads by 50.8% in average FPS across 29 tracked games in our benchmark data and by 0.1% in PassMark G3D (3,803 vs 3,800), so the answer here is pretty clean.

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

Radeon 840M is the safer long-term pick for 2026 and beyond. The case is simple: a 4nm process instead of 14nm and a newer 2024 generation instead of 2018. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon RX 550X (móvel) makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, Radeon RX 550X (móvel) is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon 840M has the stronger long-term case.

Radeon 840M vs Radeon RX 550X (móvel) Technical Specifications

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

Radeon 840M

The Radeon 840M is manufactured by AMD. It was released in June 2 2024. It features the RDNA 3+ architecture. The boost clock speed is 2900 MHz. It has 256 shading units. The thermal design power (TDP) is 30W. Manufactured using 4 nm process technology. G3D Mark benchmark score: 3,803 points.

Radeon RX 550X (móvel)

The Radeon RX 550X (móvel) is manufactured by AMD. It was released in April 11 2018. It features the GCN 4.0 architecture. The core clock ranges from 1100 MHz to 1287 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,800 points.

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Graphics Performance

The Radeon 840M scores 3,803 and the Radeon RX 550X (móvel) reaches 3,800 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The Radeon 840M is built on RDNA 3+ while the Radeon RX 550X (móvel) uses GCN 4.0, both on 4 nm vs 14 nm. Shader units: 256 (Radeon 840M) vs 640 (Radeon RX 550X (móvel)). Boost clocks: 2900 MHz vs 1287 MHz.

Feature	Radeon 840M	Radeon RX 550X (móvel)
G3D Mark Score	3,803	3,800
Architecture	RDNA 3+	GCN 4.0
Process Node	4 nm	14 nm
Shading Units	256	640+150%
Boost Clock	2900 MHz+125%	1287 MHz
Frame Generation	FSR upscaling + RSR	FSR upscaling + limited Frame Generation

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Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 550X (móvel) is support for FSR Frame Generation. In games that support it, that can smooth out motion and lift perceived FPS. The Radeon 840M does not have comparable native support in the same tier.

Feature	Radeon 840M	Radeon RX 550X (móvel)
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	FSR Frame Generation
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 2 GB of video memory. Memory bus width is System on the Radeon 840M and 256-bit on the Radeon RX 550X (móvel).

Feature	Radeon 840M	Radeon RX 550X (móvel)
VRAM Capacity	2 GB	2 GB
Memory Type	Shared	GDDR5
Memory Bandwidth	System	Unknown
Bus Width	System	256-bit

🔌

Power & Dimensions

The Radeon 840M draws 30W versus the Radeon RX 550X (móvel)'s 50W — a 50% difference. The Radeon 840M is more power-efficient. Recommended PSU: 350W (Radeon 840M) vs 350W (Radeon RX 550X (móvel)). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Radeon 840M	Radeon RX 550X (móvel)
TDP	30W-40%	50W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Slots	0	—
Temp (Load)	90	—
Perf/Watt	126.8+67%	76.0

💰

Value Analysis

The newer card here is Radeon 840M (2024 vs 2018).

Feature	Radeon 840M	Radeon RX 550X (móvel)
MSRP	—	$35
Codename	Krackan Point	Polaris 23
Release	June 2 2024	April 11 2018
Ranking	#516	#648

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