AMD Radeon RX 580X Mobile vs AMD Radeon R9 M280X

VS

AMD Radeon RX 580X Mobile

AMD Radeon R9 M280X

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 4GB VRAM Radeon R9 M280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X Mobile 's Advantages

Released 3 years and 2 months late

Boost Clock has increased by 8% (1077MHz vs 1000MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 88.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +176%

4.963 TFLOPS

Radeon R9 M280X

1.792 TFLOPS

Radeon RX 580X Mobile

VS

Radeon R9 M280X

Graphics Card

Apr 2018

Release Date

Feb 2015

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

900 MHz

1077 MHz

Boost Clock

1000 MHz

2000 MHz

Memory Clock

1375 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

88.00GB/s

Render Config

36

Compute Units

14

-

2304

Shading Units

896

144

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

16.00 GPixel/s

155.1 GTexel/s

Texture Rate

56.00 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

1.792 TFLOPS

310.2 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

Saturn

Polaris 20M XT

GPU Variant

Saturn XT (216-0843024)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

2.08 billion

232 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5

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