NVIDIA GeForce 940MX vs NVIDIA GeForce GTX 680M

VS

NVIDIA GeForce 940MX

NVIDIA GeForce GTX 680M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940MX and 4GB VRAM GeForce GTX 680M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940MX 's Advantages

Released 3 years and 7 months late

Boost Clock has increased by 64% (1242MHz vs 758MHz)

Lower TDP (23W vs 100W)

NVIDIA GeForce GTX 680M 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (115.2GB/s vs 16.02GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 940MX

0.954 TFLOPS

GeForce GTX 680M +113%

2.038 TFLOPS

Blender

GeForce 940MX

72

GeForce GTX 680M +162%

189

OctaneBench

GeForce 940MX

4

GeForce GTX 680M +950%

42

GeForce 940MX

VS

GeForce GTX 680M

Graphics Card

Jan 2016

Release Date

Jun 2012

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1004 MHz

Base Clock

719 MHz

1242 MHz

Boost Clock

758 MHz

1001 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

115.2GB/s

Render Config

-

384

Shading Units

1344

24

TMUs

112

8

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

9.936 GPixel/s

Pixel Rate

21.22 GPixel/s

29.81 GTexel/s

Texture Rate

84.90 GTexel/s

-

953.9 GFLOPS

FP32 (float)

2.038 TFLOPS

29.81 GFLOPS

FP64 (double)

84.90 GFLOPS

Board Design

23W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GM108

GPU Name

GK104

N16S-GTR-S

GPU Variant

N13E-GTX-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

3.54 billion

Unknown

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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