GeForce GT 755M vs Radeon R6 M340DX

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 GT 755M vs Radeon R6 M340DX 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 GT 755M vs Radeon R6 M340DX: 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 GT 755M

2013

Why buy it

✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).

Trade-offs

❌Lower average FPS than Radeon R6 M340DX across 50 tracked games in our benchmark data.
❌2013 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌66.7% higher power demand at 50W vs 30W.

Radeon R6 M340DX

2015

Why buy it

✅2.4% more average FPS across 50 tracked games in our benchmark data.
✅Draws 30W instead of 50W, a 20W reduction.

Trade-offs

❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
❌2015 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Quick Answers

Which GPU is faster for gaming right now?

Radeon R6 M340DX is the faster gaming card right now. In our data, it leads by 2.4% in average FPS across 50 tracked games in our benchmark data and by 4.3% in PassMark G3D (1,800 vs 1,726), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

GeForce GT 755M 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 R6 M340DX 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 R6 M340DX is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce GT 755M has the stronger long-term case.

GeForce GT 755M vs Radeon R6 M340DX Technical Specifications

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

GeForce GT 755M

The GeForce GT 755M is manufactured by NVIDIA. It was released in June 25 2013. It features the Kepler architecture. The core clock speed is 980 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,726 points.

Radeon R6 M340DX

The Radeon R6 M340DX is manufactured by AMD. It was released in December 12 2015. It features the GCN 1.0 architecture. The core clock ranges from 955 MHz to 1030 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,800 points.

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Graphics Performance

The GeForce GT 755M scores 1,726 and the Radeon R6 M340DX reaches 1,800 in the G3D Mark benchmark — just a 4.3% difference, making them near-identical in rasterization performance. The GeForce GT 755M is built on Kepler while the Radeon R6 M340DX uses GCN 1.0, both on a 28 nm process. Shader units: 384 (GeForce GT 755M) vs 384 (Radeon R6 M340DX). Raw compute: 0.7526 TFLOPS (GeForce GT 755M) vs 0.791 TFLOPS (Radeon R6 M340DX).

Feature	GeForce GT 755M	Radeon R6 M340DX
G3D Mark Score	1,726	1,800+4%
Architecture	Kepler	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.7526 TFLOPS	0.791 TFLOPS+5%
ROPs	16+100%	8
TMUs	32+33%	24
L1 Cache	32 KB	96 KB+200%
L2 Cache	256 KB	256 KB

✨

Advanced Features (DLSS/FSR)

The GeForce GT 755M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon R6 M340DX leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GT 755M	Radeon R6 M340DX
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 GT 755M has 2 GB of VRAM, while the Radeon R6 M340DX carries 512 MB. GeForce GT 755M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GeForce GT 755M and 64-bit on the Radeon R6 M340DX.

Feature	GeForce GT 755M	Radeon R6 M340DX
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	256 KB	256 KB

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce GT 755M) vs 12_0 (Radeon R6 M340DX). Maximum simultaneous displays: 4 vs 0.

Feature	GeForce GT 755M	Radeon R6 M340DX
DirectX	12 (11_0)	12_0
Max Displays	4	0

🎬

Media & Encoding

Hardware encoder: NVENC (Kepler) (GeForce GT 755M) vs VCE 2.0 (Radeon R6 M340DX). Decoder: PureVideo HD (VP5) vs UVD 4.2.

Feature	GeForce GT 755M	Radeon R6 M340DX
Encoder	NVENC (Kepler)	VCE 2.0
Decoder	PureVideo HD (VP5)	UVD 4.2
Codecs	H.264,VC-1,MPEG-2	—

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Power & Dimensions

The GeForce GT 755M draws 50W versus the Radeon R6 M340DX's 30W — a 50% difference. The Radeon R6 M340DX is more power-efficient. Recommended PSU: 350W (GeForce GT 755M) vs 350W (Radeon R6 M340DX). Power connectors: PCIe-powered vs PCIe-powered. Card length: 0mm vs 1mm, occupying 0 vs 0 slots.

Feature	GeForce GT 755M	Radeon R6 M340DX
TDP	50W	30W-40%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	0mm	1mm
Height	0mm	—
Slots	0	0
Temp (Load)	80	—
Perf/Watt	34.5	60.0+74%

💰

Value Analysis

The newer card here is Radeon R6 M340DX (2015 vs 2013).

Feature	GeForce GT 755M	Radeon R6 M340DX
MSRP	—	$0
Codename	GK107	Jet
Release	June 25 2013	December 12 2015
Ranking	#726	#852

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