Radeon 840M vs Radeon R9 M485X

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 R9 M485X 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 R9 M485X: 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

✅Better long-term bet: RDNA 3+ (2024) on 4nm gives it a newer hardware base for upcoming games.
✅Draws 30W instead of 250W, a 220W reduction.
✅More future proof: RDNA 3+ (2024) on 4nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon R9 M485X across 29 tracked games in our benchmark data.
❌Lower G3D Mark per dollar, at 0 vs 8.4 G3D/$ (Unknown MSRP vs $450 MSRP).

Radeon R9 M485X

2016

Why buy it

✅22.3% more average FPS across 29 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 8.4 vs 0 G3D/$ ($450 MSRP vs Unknown MSRP).

Trade-offs

❌2016 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌733.3% higher power demand at 250W vs 30W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon R9 M485X is the faster gaming card right now. In our data, it leads by 22.3% in average FPS across 29 tracked games in our benchmark data. PassMark G3D leans toward Radeon 840M instead at 3,803 vs 3,801, 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 840M is the safer long-term pick for 2026 and beyond. The case is simple: a 4nm process instead of 28nm and a newer 2024 generation instead of 2016. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon R9 M485X 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 R9 M485X 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 R9 M485X 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 R9 M485X

The Radeon R9 M485X is manufactured by AMD. It was released in May 15 2016. It features the GCN 3.0 architecture. The core clock speed is 723 MHz. It has 2048 shading units. The thermal design power (TDP) is 250W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,801 points.

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Graphics Performance

The Radeon 840M scores 3,803 and the Radeon R9 M485X reaches 3,801 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 R9 M485X uses GCN 3.0, both on 4 nm vs 28 nm. Shader units: 256 (Radeon 840M) vs 2,048 (Radeon R9 M485X).

Feature	Radeon 840M	Radeon R9 M485X
G3D Mark Score	3,803	3,801
Architecture	RDNA 3+	GCN 3.0
Process Node	4 nm	28 nm
Shading Units	256	2048+700%
Frame Generation	FSR upscaling + RSR	FSR upscaling

✨

Advanced Features (DLSS/FSR)

Feature	Radeon 840M	Radeon R9 M485X
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

💾

Video Memory (VRAM)

Both cards ship with 2 GB of video memory. Memory bus width is System on the Radeon 840M and 128-bit on the Radeon R9 M485X.

Feature	Radeon 840M	Radeon R9 M485X
VRAM Capacity	2 GB	2 GB
Memory Type	Shared	GDDR5
Memory Bandwidth	System	Unknown
Bus Width	System	128-bit

🖥️

Display & API Support

DirectX support: 12 Ultimate (12_2) (Radeon 840M) vs 12 (Radeon R9 M485X). Vulkan: 1.3 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

Feature	Radeon 840M	Radeon R9 M485X
DirectX	12 Ultimate (12_2)	12
Vulkan	1.3+8%	1.2
OpenGL	4.6	4.6
Max Displays	4	4

🎬

Media & Encoding

Hardware encoder: VCN 4.0 (Radeon 840M) vs VCE 3.0 (Radeon R9 M485X). Decoder: VCN 4.0 vs UVD 6.0. Supported codecs: H.264,H.265,AV1,VP9 (Radeon 840M) vs H.264,HEVC,VP9 (Radeon R9 M485X).

Feature	Radeon 840M	Radeon R9 M485X
Encoder	VCN 4.0	VCE 3.0
Decoder	VCN 4.0	UVD 6.0
Codecs	H.264,H.265,AV1,VP9	H.264,HEVC,VP9

🔌

Power & Dimensions

The Radeon 840M draws 30W versus the Radeon R9 M485X's 250W — a 157.1% difference. The Radeon 840M is more power-efficient. Recommended PSU: 350W (Radeon 840M) vs 350W (Radeon R9 M485X). Power connectors: PCIe-powered vs Mobile. Typical load temperature: 90 vs 80°C.

Feature	Radeon 840M	Radeon R9 M485X
TDP	30W-88%	250W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	Mobile
Slots	0	—
Temp (Load)	90	80°C-11%
Perf/Watt	126.8+734%	15.2

💰

Value Analysis

The newer card here is Radeon 840M (2024 vs 2016).

Feature	Radeon 840M	Radeon R9 M485X
MSRP	—	$450
Codename	Krackan Point	Amethyst
Release	June 2 2024	May 15 2016
Ranking	#516	#519

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