AMD Radeon Pro 555 vs AMD Radeon R9 M390 Mac Edition

VS

AMD Radeon Pro 555

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 2 years and 1 months late

Lower TDP (75W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 81.60GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 555

1.306 TFLOPS

Radeon R9 M390 Mac Edition +50%

1.962 TFLOPS

Radeon Pro 555

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jun 2017

Release Date

May 2015

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1275 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

81.60GB/s

Bandwidth

174.7GB/s

Render Config

12

Compute Units

16

-

768

Shading Units

1024

48

TMUs

64

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

30.66 GPixel/s

40.80 GTexel/s

Texture Rate

61.31 GTexel/s

1306 GFLOPS

FP16 (half)

-

1306 GFLOPS

FP32 (float)

1.962 TFLOPS

81.60 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

75W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 21

GPU Name

Pitcairn

Polaris 21 PRO

GPU Variant

Pitcairn PRO (215-0828062)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

2.8 billion

123 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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