NVIDIA GeForce 820M vs AMD Radeon R9 M395 Mac Edition

VS

NVIDIA GeForce 820M

AMD Radeon R9 M395 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 2GB VRAM Radeon R9 M395 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 250W)

AMD Radeon R9 M395 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 28.83GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M

0.622 TFLOPS

Radeon R9 M395 Mac Edition +380%

2.989 TFLOPS

GeForce 820M

VS

Radeon R9 M395 Mac Edition

Graphics Card

Mar 2015

Release Date

May 2015

GeForce 800M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

901 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.83GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

28

-

384

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

26.69 GPixel/s

25.92 GTexel/s

Texture Rate

93.41 GTexel/s

-

622.1 GFLOPS

FP32 (float)

2.989 TFLOPS

25.92 GFLOPS

FP64 (double)

373.6 GFLOPS

Board Design

45W

TDP

250W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

Amethyst

-

GPU Variant

Amethyst PRO (216-0872004)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

5 billion

118 mm²

Die Size

366 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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