AMD Radeon R9 M395X Mac Edition vs AMD Radeon 540X Mobile

VS

AMD Radeon R9 M395X Mac Edition

AMD Radeon 540X Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM Radeon 540X Mobile 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

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 32.00GB/s)

1536 additional rendering cores

AMD Radeon 540X Mobile 's Advantages

Released 3 years and 9 months late

Boost Clock1095MHz

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +232%

3.723 TFLOPS

Radeon 540X Mobile

1.121 TFLOPS

Radeon R9 M395X Mac Edition

VS

Radeon 540X Mobile

Graphics Card

May 2015

Release Date

Feb 2019

Crystal System

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1095 MHz

1365 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

32.00GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

17.52 GPixel/s

116.4 GTexel/s

Texture Rate

35.04 GTexel/s

3.723 TFLOPS

FP16 (half)

1121 GFLOPS

3.723 TFLOPS

FP32 (float)

1121 GFLOPS

232.7 GFLOPS

FP64 (double)

70.08 GFLOPS

Board Design

250W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Lexa

Amethyst XT

GPU Variant

Lexa PRO (215-0904018)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

2.2 billion

366 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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