GeForce GTX 780M 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.

GeForce GTX 780M 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.

GeForce GTX 780M 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.

GeForce GTX 780M

2013

Why buy it

✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).

Trade-offs

❌2013 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌306.7% higher power demand at 122W vs 30W.

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 122W, a 92W reduction.
✅More future proof: RDNA 3+ (2024) on 4nm with a newer platform for upcoming games.

Trade-offs

❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.

Quick Answers

Which GPU is faster for gaming right now?

GeForce GTX 780M is the faster gaming card right now based on the synthetic data we have. It leads by 1.1% in PassMark G3D (3,845 vs 3,803), which is the best performance signal available in this matchup.

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: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack, a 4nm process instead of 28nm, and a newer 2024 generation instead of 2013. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

GeForce GTX 780M 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, GeForce GTX 780M is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon 840M has the stronger long-term case.

GeForce GTX 780M vs Radeon 840M Technical Specifications

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

GeForce GTX 780M

The GeForce GTX 780M is manufactured by NVIDIA. It was released in May 11 2013. It features the Kepler architecture. The core clock ranges from 823 MHz to 797 MHz. It has 1536 shading units. The thermal design power (TDP) is 122W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,845 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.

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Graphics Performance

The GeForce GTX 780M scores 3,845 and the Radeon 840M reaches 3,803 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The GeForce GTX 780M is built on Kepler while the Radeon 840M uses RDNA 3+, both on 28 nm vs 4 nm. Shader units: 1,536 (GeForce GTX 780M) vs 256 (Radeon 840M). Boost clocks: 797 MHz vs 2900 MHz.

Feature	GeForce GTX 780M	Radeon 840M
G3D Mark Score	3,845+1%	3,803
Architecture	Kepler	RDNA 3+
Process Node	28 nm	4 nm
Shading Units	1536+500%	256
Boost Clock	797 MHz	2900 MHz+264%

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Advanced Features (DLSS/FSR)

The GeForce GTX 780M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon 840M leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GTX 780M	Radeon 840M
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

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Video Memory (VRAM)

The GeForce GTX 780M has 4 GB of VRAM, while the Radeon 840M carries 2 GB. GeForce GTX 780M gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 256-bit on the GeForce GTX 780M and System on the Radeon 840M.

Feature	GeForce GTX 780M	Radeon 840M
VRAM Capacity	4 GB+100%	2 GB
Memory Type	GDDR5	Shared
Memory Bandwidth	160 GB/s	System
Bus Width	256-bit	System

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Display & API Support

DirectX support: 12 (11_0) (GeForce GTX 780M) vs 12 Ultimate (12_2) (Radeon 840M). Vulkan: 1.2 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

Feature	GeForce GTX 780M	Radeon 840M
DirectX	12 (11_0)	12 Ultimate (12_2)
Vulkan	1.2	1.3+8%
OpenGL	4.6	4.6
Max Displays	4	4

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Media & Encoding

Hardware encoder: 1st Gen NVENC (Kepler) (GeForce GTX 780M) vs VCN 4.0 (Radeon 840M). Decoder: PureVideo HD VP5 vs VCN 4.0. Supported codecs: H.264,VC-1,MPEG-2 (GeForce GTX 780M) vs H.264,H.265,AV1,VP9 (Radeon 840M).

Feature	GeForce GTX 780M	Radeon 840M
Encoder	1st Gen NVENC (Kepler)	VCN 4.0
Decoder	PureVideo HD VP5	VCN 4.0
Codecs	H.264,VC-1,MPEG-2	H.264,H.265,AV1,VP9

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Power & Dimensions

The GeForce GTX 780M draws 122W versus the Radeon 840M's 30W — a 121.1% difference. The Radeon 840M is more power-efficient. Recommended PSU: 350W (GeForce GTX 780M) vs 350W (Radeon 840M). Power connectors: 1x 6-pin vs PCIe-powered. Typical load temperature: 80°C vs 90.