AMD Radeon R9 M390 Mac Edition vs AMD Radeon RX 550 Mobile

VS

AMD Radeon R9 M390 Mac Edition

AMD Radeon RX 550 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 2GB VRAM Radeon RX 550 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 96.00GB/s)

384 additional rendering cores

AMD Radeon RX 550 Mobile 's Advantages

Released 2 years and 2 months late

Boost Clock1287MHz

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +19%

1.962 TFLOPS

Radeon RX 550 Mobile

1.647 TFLOPS

Radeon R9 M390 Mac Edition

VS

Radeon RX 550 Mobile

Graphics Card

May 2015

Release Date

Jul 2017

Crystal System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1287 MHz

1365 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

96.00GB/s

Render Config

16

Compute Units

10

-

1024

Shading Units

640

64

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

20.59 GPixel/s

61.31 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

1.962 TFLOPS

FP32 (float)

1.647 TFLOPS

122.6 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

80W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Lexa

Pitcairn PRO (215-0828062)

GPU Variant

Lexa PRO (215-0904018)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.8 billion

Transistors

2.2 billion

212 mm²

Die Size

103 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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