AMD Radeon 540X Mobile vs AMD Radeon R9 M295X Mac Edition

VS

AMD Radeon 540X Mobile

AMD Radeon R9 M295X Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon 540X Mobile and 4GB VRAM Radeon R9 M295X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540X Mobile 's Advantages

Released 4 years and 3 months late

Boost Clock1095MHz

Lower TDP (50W vs 250W)

AMD Radeon R9 M295X Mac Edition 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.3GB/s vs 32.00GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 540X Mobile

1.121 TFLOPS

Radeon R9 M295X Mac Edition +210%

3.482 TFLOPS

Radeon 540X Mobile

VS

Radeon R9 M295X Mac Edition

Graphics Card

Feb 2019

Release Date

Nov 2014

Mobility Radeon

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

980 MHz

Base Clock

-

1095 MHz

Boost Clock

-

1000 MHz

Memory Clock

1362 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

174.3GB/s

Render Config

8

Compute Units

32

-

512

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

17.52 GPixel/s

Pixel Rate

27.20 GPixel/s

35.04 GTexel/s

Texture Rate

108.8 GTexel/s

1121 GFLOPS

FP16 (half)

3.482 TFLOPS

1121 GFLOPS

FP32 (float)

3.482 TFLOPS

70.08 GFLOPS

FP64 (double)

217.6 GFLOPS

Board Design

50W

TDP

250W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Lexa

GPU Name

Amethyst

Lexa PRO (215-0904018)

GPU Variant

Amethyst XT

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

5 billion

103 mm²

Die Size

366 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.4

Shader Model

6.3

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