AMD Radeon R5 M255 vs AMD Radeon Pro 580X

VS

AMD Radeon R5 M255

AMD Radeon Pro 580X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM Radeon Pro 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580X 's Advantages

Released 4 years and 5 months late

Boost Clock has increased by 28% (1200MHz vs 940MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (218.9GB/s vs 32.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

Radeon Pro 580X +666%

5.53 TFLOPS

Radeon R5 M255

VS

Radeon Pro 580X

Graphics Card

Oct 2014

Release Date

Mar 2019

Gem System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

1100 MHz

940 MHz

Boost Clock

1200 MHz

1000 MHz

Memory Clock

1710 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

218.9GB/s

Render Config

6

Compute Units

36

-

384

Shading Units

2304

24

TMUs

144

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

38.40 GPixel/s

22.56 GTexel/s

Texture Rate

172.8 GTexel/s

721.9 GFLOPS

FP16 (half)

5.530 TFLOPS

721.9 GFLOPS

FP32 (float)

5.530 TFLOPS

45.12 GFLOPS

FP64 (double)

345.6 GFLOPS

Board Design

Unknown

TDP

185W

-

Portable Device Dependent

Outputs

2x HDMI 2.0b

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

Ellesmere

Topaz PRO (216-0858030)

GPU Variant

Ellesmere XTA (216-0886220)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.55 billion

Transistors

5.7 billion

125 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.4

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