NVIDIA GeForce GTX 675MX Mac Edition vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce GTX 675MX Mac Edition NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GTX 675MX Mac Edition and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 675MX Mac Edition 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 25.60GB/s)

1248 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 675MX Mac Edition +906%

1.933 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce GTX 675MX Mac Edition

VS

GeForce GT 420M

Graphics Card

Apr 2013

Release Date

Sep 2010

GeForce 600M

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

2

-

Compute Units

-

1344

Shading Units

96

112

TMUs

16

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

20.13 GPixel/s

Pixel Rate

2.000 GPixel/s

80.53 GTexel/s

Texture Rate

8.000 GTexel/s

-

FP16 (half)

-

1.933 TFLOPS

FP32 (float)

192.0 GFLOPS

80.53 GFLOPS

FP64 (double)

16.00 GFLOPS

Graphics Processor

GK104

GPU Name

GF108

N13E-GSR-A2

GPU Variant

N11P-GE-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.585 billion

294 mm²

Die Size

116 mm²

Board Design

100W

TDP

23W

-

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

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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