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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

Radeon 680M

2023

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

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

❌Fewer clear downsides in this head-to-head, aside from the usual pricing and availability swings.

Radeon 680M

2023

Radeon 840M

2024

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

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

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

Trade-offs

❌Fewer clear downsides in this head-to-head, aside from the usual pricing and availability swings.

Quick Answers

So, is Radeon 680M better than Radeon 840M?

Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 3,836 vs 3,803 in G3D Mark. The bigger reason to prefer Radeon 680M is the overall package: you are getting FSR upscaling.

Which one is more future-proof for 2026 and beyond?

Radeon 840M is the more future-proof choice for 2026 and beyond. You are getting a newer 2024 generation instead of 2023 and a 4nm process instead of 6nm. That makes it the safer long-run choice for modern games.

Which one is the smarter buy today, not just the cheaper card?

Radeon 680M can still make sense if you find it at the right price, especially around Unknown MSRP. Radeon 680M is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. Radeon 680M is priced in an unclear MSRP range at an unclear MSRP versus an unclear MSRP, and you are getting 0.9% higher G3D Mark. Radeon 840M is the newer 2024 card, so it still has a real case if you care more about newer architecture, lower power draw (30W vs 50W), and future-proofing than about squeezing out the strongest gaming value today.

When does Radeon 840M make more sense than Radeon 680M?

Yes. Radeon 840M is still an excellent gaming GPU in 2026: it is still comfortable for 1080p and decent for 1440p, though 4K is more situational. It makes more sense if your priority is newer architecture, lower power draw (30W vs 50W), future-proofing, and staying closer to an unclear MSRP more than squeezing out the extra headroom of Radeon 680M. The trade-off is that Radeon 680M currently gives you 0.9% higher G3D Mark. G3D-per-dollar is basically tied between them.

Games Benchmarks

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 9800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

Radeon 680M Benchmark Check

Radeon 840M Benchmark Check

Path of Exile 2

Preset	Radeon 680M	Radeon 840M
1080p
low	127 FPS	68 FPS
medium	113 FPS	56 FPS
high	94 FPS	41 FPS
ultra	70 FPS	28 FPS
1440p
low	111 FPS	53 FPS
medium	93 FPS	44 FPS
high	76 FPS	29 FPS
ultra	57 FPS	20 FPS
4K
low	47 FPS	23 FPS
medium	44 FPS	22 FPS
high	32 FPS	13 FPS
ultra	28 FPS	12 FPS

Open Radeon 680M Open Radeon 840M

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Radeon 680M	Radeon 840M
1080p
low	161 FPS	124 FPS
medium	128 FPS	87 FPS
high	95 FPS	59 FPS
ultra	63 FPS	38 FPS
1440p
low	107 FPS	82 FPS
medium	82 FPS	50 FPS
high	62 FPS	37 FPS
ultra	45 FPS	26 FPS
4K
low	54 FPS	38 FPS
medium	43 FPS	26 FPS
high	34 FPS	21 FPS
ultra	22 FPS	15 FPS

Open Radeon 680M Open Radeon 840M

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Radeon 680M	Radeon 840M
1080p
low	173 FPS	171 FPS
medium	138 FPS	137 FPS
high	115 FPS	114 FPS
ultra	86 FPS	86 FPS
1440p
low	129 FPS	128 FPS
medium	104 FPS	103 FPS
high	86 FPS	86 FPS
ultra	65 FPS	64 FPS
4K
low	86 FPS	86 FPS
medium	69 FPS	68 FPS
high	58 FPS	57 FPS
ultra	43 FPS	43 FPS

Open Radeon 680M Open Radeon 840M

League of Legends

League of Legends

Valorant

Preset	Radeon 680M	Radeon 840M
1080p
low	173 FPS	171 FPS
medium	138 FPS	137 FPS
high	115 FPS	114 FPS
ultra	86 FPS	86 FPS
1440p
low	129 FPS	120 FPS
medium	104 FPS	96 FPS
high	86 FPS	82 FPS
ultra	65 FPS	64 FPS
4K
low	86 FPS	70 FPS
medium	69 FPS	55 FPS
high	58 FPS	45 FPS
ultra	43 FPS	33 FPS

Open Radeon 680M Open Radeon 840M

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Radeon 680M and Radeon 840M

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 feature 2 GB of Shared. Bus width: System vs System.

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.