NVIDIA GeForce 820A vs AMD Radeon R9 M395 Mac Edition

VS

NVIDIA GeForce 820A AMD Radeon R9 M395 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 820A 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 820A 's Advantages

Lower TDP (15W vs 250W)

AMD Radeon R9 M395 Mac Edition 's Advantages

Released 1 years and 2 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

1696 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820A

0.298 TFLOPS

Radeon R9 M395 Mac Edition +903%

2.989 TFLOPS

GeForce 820A

VS

Radeon R9 M395 Mac Edition

Graphics Card

Mar 2014

Release Date

May 2015

GeForce 800A

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

174.7GB/s

Render Config

2

SM Count

-

Compute Units

28

96

Shading Units

1792

16

TMUs

112

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

-

128 KB

L2 Cache

-

Theoretical Performance

3.100 GPixel/s

Pixel Rate

26.69 GPixel/s

12.40 GTexel/s

Texture Rate

93.41 GTexel/s

-

FP16 (half)

-

297.6 GFLOPS

FP32 (float)

2.989 TFLOPS

24.80 GFLOPS

FP64 (double)

373.6 GFLOPS

Graphics Processor

GF117

GPU Name

Amethyst

N15V-GM

GPU Variant

Amethyst PRO (216-0872004)

Fermi 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.585 billion

Transistors

5 billion

116 mm²

Die Size

366 mm²

Board Design

15W

TDP

250W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.3

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