AMD Radeon RX 470 Mobile vs AMD Radeon R5 M255

VS

AMD Radeon RX 470 Mobile

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 470 Mobile and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470 Mobile 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 14% (1074MHz vs 940MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 32.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 470 Mobile +510%

4.399 TFLOPS

Radeon R5 M255

0.721 TFLOPS

Radeon RX 470 Mobile

VS

Radeon R5 M255

Graphics Card

Aug 2016

Release Date

Oct 2014

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

926 MHz

Base Clock

925 MHz

1074 MHz

Boost Clock

940 MHz

1750 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

224.0GB/s

Bandwidth

32.00GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

384

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.37 GPixel/s

Pixel Rate

7.520 GPixel/s

137.5 GTexel/s

Texture Rate

22.56 GTexel/s

4.399 TFLOPS

FP16 (half)

721.9 GFLOPS

4.399 TFLOPS

FP32 (float)

721.9 GFLOPS

274.9 GFLOPS

FP64 (double)

45.12 GFLOPS

Board Design

85W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Ellesmere

GPU Name

Topaz

Ellesmere PRO

GPU Variant

Topaz PRO (216-0858030)

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

1.55 billion

232 mm²

Die Size

125 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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