GeForce 840M vs Radeon R9 M275

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 840M vs Radeon R9 M275 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 840M vs Radeon R9 M275: 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 840M

2014

Why buy it

✅259.6% more average FPS across 35 tracked games in our benchmark data.
✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
✅Draws 33W instead of 75W, a 42W reduction.

Trade-offs

❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌Lower G3D Mark per dollar, at 0 vs 3.7 G3D/$ (Unknown MSRP vs $300 MSRP).

Radeon R9 M275

2014

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 3.7 vs 0 G3D/$ ($300 MSRP vs Unknown MSRP).

Trade-offs

❌Lower average FPS than GeForce 840M across 35 tracked games in our benchmark data.
❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌127.3% higher power demand at 75W vs 33W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce 840M is the faster gaming card right now. In our data, it leads by 259.6% in average FPS across 35 tracked games in our benchmark data. PassMark G3D leans toward Radeon R9 M275 instead at 1,115 vs 1,100, 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?

GeForce 840M is the safer long-term pick for 2026 and beyond. The case is simple: 2 GB vs 512 MB of VRAM. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

Radeon R9 M275 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 M275 is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce 840M has the stronger long-term case.

GeForce 840M vs Radeon R9 M275 Technical Specifications

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

GeForce 840M

The GeForce 840M is manufactured by NVIDIA. It was released in March 12 2014. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,100 points.

Radeon R9 M275

The Radeon R9 M275 is manufactured by AMD. It was released in January 28 2014. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,115 points. Launch price was $799.99.

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Graphics Performance

The GeForce 840M scores 1,100 and the Radeon R9 M275 reaches 1,115 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GeForce 840M is built on Maxwell while the Radeon R9 M275 uses GCN 1.0, both on a 28 nm process. Shader units: 384 (GeForce 840M) vs 640 (Radeon R9 M275). Raw compute: 0.8632 TFLOPS (GeForce 840M) vs 1.184 TFLOPS (Radeon R9 M275). Boost clocks: 1124 MHz vs 925 MHz.

Feature	GeForce 840M	Radeon R9 M275
G3D Mark Score	1,100	1,115+1%
Architecture	Maxwell	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	384	640+67%
Compute (TFLOPS)	0.8632 TFLOPS	1.184 TFLOPS+37%
Boost Clock	1124 MHz+22%	925 MHz
ROPs	8	16+100%
TMUs	16	40+150%
L1 Cache	192 KB+20%	160 KB
L2 Cache	1 MB+300%	0.25 MB

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Advanced Features (DLSS/FSR)

The GeForce 840M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon R9 M275 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce 840M	Radeon R9 M275
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 840M has 2 GB of VRAM, while the Radeon R9 M275 carries 512 MB. GeForce 840M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce 840M and 128-bit on the Radeon R9 M275. L2 Cache: 1 MB (GeForce 840M) vs 0.25 MB (Radeon R9 M275) — the GeForce 840M has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce 840M	Radeon R9 M275
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	64 GB/s
Bus Width	128-bit	128-bit
L2 Cache	1 MB+300%	0.25 MB

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Display & API Support

DirectX support: 11.0 (GeForce 840M) vs 12 (FL11_1) (Radeon R9 M275). Vulkan: 1.2 vs 1.2. OpenGL: 4.5 vs 4.1. Maximum simultaneous displays: 1 vs 6.

Feature	GeForce 840M	Radeon R9 M275
DirectX	11.0	12 (FL11_1)+9%
Vulkan	1.2	1.2
OpenGL	4.5+10%	4.1
Max Displays	1	6+500%

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Media & Encoding

Hardware encoder: NVENC 2.0 (GeForce 840M) vs UVD3 (Radeon R9 M275). Decoder: PureVideo HD VP6 vs VCE. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 (GeForce 840M) vs H.264,MPEG-2,VC-1,Flash (Radeon R9 M275).

Feature	GeForce 840M	Radeon R9 M275
Encoder	NVENC 2.0	UVD3
Decoder	PureVideo HD VP6	VCE
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265	H.264,MPEG-2,VC-1,Flash

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Power & Dimensions

The GeForce 840M draws 33W versus the Radeon R9 M275's 75W — a 77.8% difference. The GeForce 840M is more power-efficient. Recommended PSU: 350W (GeForce 840M) vs 350W (Radeon R9 M275). Power connectors: Legacy vs Mobile. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 75°C vs 80°C.