NVIDIA GeForce GT 445M vs NVIDIA GeForce GTX 680MX Mac Edition

VS

NVIDIA GeForce GT 445M

NVIDIA GeForce GTX 680MX Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 445M and 2GB VRAM GeForce GTX 680MX Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 445M 's Advantages

Lower TDP (35W vs 122W)

NVIDIA GeForce GTX 680MX Mac Edition 's Advantages

Released 2 years and 1 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 40.00GB/s)

1392 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 445M

0.328 TFLOPS

GeForce GTX 680MX Mac Edition +573%

2.209 TFLOPS

GeForce GT 445M

VS

GeForce GTX 680MX Mac Edition

Graphics Card

Sep 2010

Release Date

Oct 2012

GeForce 400M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

625 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

40.00GB/s

Bandwidth

160.0GB/s

Render Config

-

3

SM Count

-

144

Shading Units

1536

24

TMUs

128

16

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

3.420 GPixel/s

Pixel Rate

23.01 GPixel/s

13.68 GTexel/s

Texture Rate

92.03 GTexel/s

-

328.3 GFLOPS

FP32 (float)

2.209 TFLOPS

27.36 GFLOPS

FP64 (double)

92.03 GFLOPS

Board Design

35W

TDP

122W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF106

GPU Name

GK104

N11E-GE-A1

GPU Variant

N13E-GTX2-A2

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

3.54 billion

238 mm²

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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