Radeon 680M vs Radeon 840M

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 680M vs Radeon 840M 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 680M vs Radeon 840M: 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 680M

2023

Why buy it

✅6.3% more average FPS across 18 tracked games in our benchmark data.

Trade-offs

❌66.7% higher power demand at 50W vs 30W.

Radeon 840M

2024

Why buy it

✅Draws 30W instead of 50W, a 20W reduction.
✅More future proof: RDNA 3+ (2024) on 4nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon 680M across 18 tracked games in our benchmark data.

Quick Answers

Which GPU is faster for gaming right now?

Radeon 680M is the faster gaming card right now. In our data, it leads by 6.3% in average FPS across 18 tracked games in our benchmark data and by 0.9% in PassMark G3D (3,836 vs 3,803), 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 6nm and a newer 2024 generation instead of 2023. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon 680M 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 680M is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon 840M has the stronger long-term case.

Radeon 680M vs Radeon 840M Technical Specifications

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

Radeon 680M

The Radeon 680M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 2000 MHz to 2200 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 3,836 points.

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.

⚡

Graphics Performance

The Radeon 680M scores 3,836 and the Radeon 840M reaches 3,803 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The Radeon 680M is built on RDNA 2.0 while the Radeon 840M uses RDNA 3+, both on 6 nm vs 4 nm. Shader units: 768 (Radeon 680M) vs 256 (Radeon 840M). Boost clocks: 2200 MHz vs 2900 MHz.

Feature	Radeon 680M	Radeon 840M
G3D Mark Score	3,836	3,803
Architecture	RDNA 2.0	RDNA 3+
Process Node	6 nm	4 nm
Shading Units	768+200%	256
Boost Clock	2200 MHz	2900 MHz+32%
Frame Generation	FSR upscaling + RSR	FSR upscaling + RSR

✨

Advanced Features (DLSS/FSR)

Feature	Radeon 680M	Radeon 840M
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 Shared. Memory bus width is System on the Radeon 680M and System on the Radeon 840M.

Feature	Radeon 680M	Radeon 840M
VRAM Capacity	2 GB	2 GB
Memory Type	Shared	Shared
Memory Bandwidth	System	System
Bus Width	System	System

🖥️

Display & API Support

DirectX support: 12_2 (Radeon 680M) vs 12 Ultimate (12_2) (Radeon 840M). Maximum simultaneous displays: 0 vs 4.

Feature	Radeon 680M	Radeon 840M
DirectX	12_2	12 Ultimate (12_2)
Max Displays	0	4

🎬

Media & Encoding

Hardware encoder: VCN 3.1 (Radeon 680M) vs VCN 4.0 (Radeon 840M). Decoder: VCN 3.1 vs VCN 4.0.

Feature	Radeon 680M	Radeon 840M
Encoder	VCN 3.1	VCN 4.0
Decoder	VCN 3.1	VCN 4.0
Codecs	—	H.264,H.265,AV1,VP9

🔌

Power & Dimensions

The Radeon 680M draws 50W versus the Radeon 840M's 30W — a 50% difference. The Radeon 840M is more power-efficient. Recommended PSU: 350W (Radeon 680M) vs 350W (Radeon 840M). Power connectors: PCIe-powered vs PCIe-powered.