NVIDIA GeForce GTX 680MX Mac Edition vs NVIDIA GeForce GT 745M

VS

NVIDIA GeForce GTX 680MX Mac Edition NVIDIA GeForce GT 745M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 680MX Mac Edition and 2GB VRAM GeForce GT 745M 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

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1152 additional rendering cores

NVIDIA GeForce GT 745M 's Advantages

Released 6 months late

Lower TDP (45W vs 122W)

Score

Benchmark

FP32 (float)

GeForce GTX 680MX Mac Edition +243%

2.209 TFLOPS

GeForce GT 745M

0.643 TFLOPS

GeForce GTX 680MX Mac Edition

VS

GeForce GT 745M

Graphics Card

Oct 2012

Release Date

Apr 2013

GeForce 600M

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

Compute Units

-

1536

Shading Units

384

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

Theoretical Performance

23.01 GPixel/s

Pixel Rate

6.696 GPixel/s

92.03 GTexel/s

Texture Rate

26.78 GTexel/s

-

FP16 (half)

-

2.209 TFLOPS

FP32 (float)

642.8 GFLOPS

92.03 GFLOPS

FP64 (double)

26.78 GFLOPS

Graphics Processor

GK104

GPU Name

GK107

N13E-GTX2-A2

GPU Variant

N14P-LP

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.27 billion

294 mm²

Die Size

118 mm²

Board Design

122W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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