AMD Radeon Pro 555X vs AMD Radeon R9 M290X Mac Edition

VS

AMD Radeon Pro 555X

AMD Radeon R9 M290X Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 2GB VRAM Radeon R9 M290X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 3 years and 8 months late

More VRAM (4GB vs 2GB)

Lower TDP (75W vs 80W)

AMD Radeon R9 M290X Mac Edition 's Advantages

Boost Clock975MHz

Larger VRAM bandwidth (174.7GB/s vs 94.08GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 555X

1.393 TFLOPS

Radeon R9 M290X Mac Edition +43%

1.997 TFLOPS

Radeon Pro 555X

VS

Radeon R9 M290X Mac Edition

Graphics Card

Jul 2018

Release Date

Nov 2014

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

975 MHz

1470 MHz

Memory Clock

1365 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

94.08GB/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

14.51 GPixel/s

Pixel Rate

31.20 GPixel/s

43.54 GTexel/s

Texture Rate

62.40 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

1.997 TFLOPS

87.07 GFLOPS

FP64 (double)

124.8 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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