GeForce GT 755M Mac Edition vs Radeon R6 M340DX

NVIDIA

GeForce GT 755M Mac Edition

2013Core: 1085 MHz
VS
AMD

Radeon R6 M340DX

2015Core: 955 MHzBoost: 1030 MHz

GeForce GT 755M Mac Edition vs Radeon R6 M340DX Performance Spectrum

About G3D Mark

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 Mac Edition 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 Mac Edition 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 Mac Edition

2013

Why buy it

  • 1.3% more average FPS across 50 tracked games in our benchmark data.
  • Delivers 100+% more G3D Mark for each dollar spent, at 8.6 vs 0 G3D/$ ($200 MSRP vs Unknown MSRP).

Trade-offs

  • 2013 hardware with 512 MB 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

  • Draws 30W instead of 50W, a 20W reduction.
  • More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

  • Lower average FPS than GeForce GT 755M Mac Edition across 50 tracked games in our benchmark data.
  • 2015 hardware with 512 MB 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 8.6 G3D/$ (Unknown MSRP vs $200 MSRP).

Quick Answers

Which GPU is faster for gaming right now?
GeForce GT 755M Mac Edition is the faster gaming card right now. In our data, it leads by 1.3% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon R6 M340DX instead at 1,800 vs 1,726, 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 GT 755M Mac Edition is the safer long-term pick for 2026 and beyond because it comes out ahead on the available hardware-headroom signals for this matchup.
Which GPU is the better buy today?
GeForce GT 755M Mac Edition makes the most sense today based on the pricing and value data we have for this matchup.

GeForce GT 755M Mac Edition vs Radeon R6 M340DX Technical Specifications

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

NVIDIA

GeForce GT 755M Mac Edition

The GeForce GT 755M Mac Edition is manufactured by NVIDIA. It was released in November 8 2013. It features the Kepler architecture. The core clock speed is 1085 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.

AMD

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.

Graphics Performance

The GeForce GT 755M Mac Edition 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 Mac Edition 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 Mac Edition) vs 384 (Radeon R6 M340DX). Raw compute: 0.8333 TFLOPS (GeForce GT 755M Mac Edition) vs 0.791 TFLOPS (Radeon R6 M340DX).

FeatureGeForce GT 755M Mac EditionRadeon 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)
0.8333 TFLOPS+5%
0.791 TFLOPS
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 Mac Edition 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.

FeatureGeForce GT 755M Mac EditionRadeon 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
💾

Video Memory (VRAM)

Both cards ship with 512 MB of GDDR5. Memory bus width is 64-bit on the GeForce GT 755M Mac Edition and 64-bit on the Radeon R6 M340DX.

FeatureGeForce GT 755M Mac EditionRadeon R6 M340DX
VRAM Capacity
0.5 GB
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 Mac Edition) vs 12_0 (Radeon R6 M340DX). Maximum simultaneous displays: 4 vs 0.

FeatureGeForce GT 755M Mac EditionRadeon R6 M340DX
DirectX
12 (11_0)
12_0
Max Displays
4
0
🎬

Media & Encoding

Hardware encoder: NVENC (1st Gen) (GeForce GT 755M Mac Edition) vs VCE 2.0 (Radeon R6 M340DX). Decoder: PureVideo HD VP5 vs UVD 4.2.

FeatureGeForce GT 755M Mac EditionRadeon R6 M340DX
Encoder
NVENC (1st Gen)
VCE 2.0
Decoder
PureVideo HD VP5
UVD 4.2
Codecs
H.264,VC-1,MPEG-2
🔌

Power & Dimensions

The GeForce GT 755M Mac Edition 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 Mac Edition) vs 350W (Radeon R6 M340DX). Power connectors: PCIe-powered vs PCIe-powered.

FeatureGeForce GT 755M Mac EditionRadeon R6 M340DX
TDP
50W
30W-40%
Recommended PSU
350W
350W
Power Connector
PCIe-powered
PCIe-powered
Length
1mm
Slots
0
0
Temp (Load)
85°C
Perf/Watt
34.5
60.0+74%
💰

Value Analysis

At launch, the GeForce GT 755M Mac Edition came in at $200, while the Radeon R6 M340DX launched at $0. On MSRP, Radeon R6 M340DX was 100+% cheaper ($200 less). Performance per dollar on MSRP (G3D Mark / MSRP): 8.6 (GeForce GT 755M Mac Edition) vs Infinity (Radeon R6 M340DX) — the Radeon R6 M340DX offers Infinity% better value. The newer card here is Radeon R6 M340DX (2015 vs 2013).

FeatureGeForce GT 755M Mac EditionRadeon R6 M340DX
MSRP
$200
$0-100%
Performance per Dollar
8.6
Infinity
Codename
GK107
Jet
Release
November 8 2013
December 12 2015
Ranking
#925
#852

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.