NVIDIA GeForce GTX 680MX Mac Edition vs NVIDIA GeForce 945M

VS

NVIDIA GeForce GTX 680MX Mac Edition

NVIDIA GeForce 945M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 680MX Mac Edition and 1024MB VRAM GeForce 945M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680MX Mac Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 16.02GB/s)

1152 additional rendering cores

NVIDIA GeForce 945M 's Advantages

Released 3 years and 6 months late

Boost Clock1189MHz

Lower TDP (23W vs 122W)

Score

Benchmark

FP32 (float)

GeForce GTX 680MX Mac Edition +141%

2.209 TFLOPS

GeForce 945M

0.913 TFLOPS

GeForce GTX 680MX Mac Edition

VS

GeForce 945M

Graphics Card

Oct 2012

Release Date

Apr 2016

GeForce 600M

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1189 MHz

1250 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

16.02GB/s

Render Config

-

1536

Shading Units

384

128

TMUs

24

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

23.01 GPixel/s

Pixel Rate

9.512 GPixel/s

92.03 GTexel/s

Texture Rate

28.54 GTexel/s

-

2.209 TFLOPS

FP32 (float)

913.2 GFLOPS

92.03 GFLOPS

FP64 (double)

28.54 GFLOPS

Board Design

122W

TDP

23W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK104

GPU Name

GM108

N13E-GTX2-A2

GPU Variant

-

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

Unknown

294 mm²

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.0

5.1

Shader Model

5.1

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