NVIDIA GeForce 820M vs NVIDIA GeForce GTX 775M Mac Edition

VS

NVIDIA GeForce 820M

NVIDIA GeForce GTX 775M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 2GB VRAM GeForce GTX 775M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Released 1 years and 4 months late

Lower TDP (45W vs 100W)

NVIDIA GeForce GTX 775M Mac Edition 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 28.83GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M

0.622 TFLOPS

GeForce GTX 775M Mac Edition +244%

2.142 TFLOPS

GeForce 820M

VS

GeForce GTX 775M Mac Edition

Graphics Card

Mar 2015

Release Date

Nov 2013

GeForce 800M

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

901 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.83GB/s

Bandwidth

160.0GB/s

Render Config

-

384

Shading Units

1344

32

TMUs

112

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

22.32 GPixel/s

25.92 GTexel/s

Texture Rate

89.26 GTexel/s

-

622.1 GFLOPS

FP32 (float)

2.142 TFLOPS

25.92 GFLOPS

FP64 (double)

89.26 GFLOPS

Board Design

45W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

GK104

-

GPU Variant

N13E-GTX-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

3.54 billion

118 mm²

Die Size

294 mm²

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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