AMD Radeon R9 M395X Mac Edition vs NVIDIA GeForce 820A

VS

AMD Radeon R9 M395X Mac Edition NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages

Released 1 years and 2 months late

More VRAM (4GB vs 1GB)

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

1952 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Lower TDP (15W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +1149%

3.723 TFLOPS

GeForce 820A

0.298 TFLOPS

Radeon R9 M395X Mac Edition

VS

GeForce 820A

Graphics Card

May 2015

Release Date

Mar 2014

Crystal System

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1365 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

32

Compute Units

-

2048

Shading Units

96

128

TMUs

16

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

Theoretical Performance

29.09 GPixel/s

Pixel Rate

3.100 GPixel/s

116.4 GTexel/s

Texture Rate

12.40 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

297.6 GFLOPS

232.7 GFLOPS

FP64 (double)

24.80 GFLOPS

Graphics Processor

Amethyst

GPU Name

GF117

Amethyst XT

GPU Variant

N15V-GM

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

0.585 billion

366 mm²

Die Size

116 mm²

Board Design

250W

TDP

15W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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