AMD Radeon R5 M255 vs AMD Radeon R9 M470

VS

AMD Radeon R5 M255

AMD Radeon R9 M470

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 4GB VRAM Radeon R9 M470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M470 's Advantages

Released 1 years and 7 months late

Boost Clock has increased by 6% (1000MHz vs 940MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (88.00GB/s vs 32.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

Radeon R9 M470 +113%

1.536 TFLOPS

Radeon R5 M255

VS

Radeon R9 M470

Graphics Card

Oct 2014

Release Date

May 2016

Gem System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

900 MHz

940 MHz

Boost Clock

1000 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

32.00GB/s

Bandwidth

88.00GB/s

Render Config

6

Compute Units

12

-

384

Shading Units

768

24

TMUs

48

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

16.00 GPixel/s

22.56 GTexel/s

Texture Rate

48.00 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

1.536 TFLOPS

45.12 GFLOPS

FP64 (double)

96.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Topaz

GPU Name

Emerald

Topaz PRO (216-0858030)

GPU Variant

Emerald PRO

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

2.08 billion

125 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2.170

-

6.5

Shader Model

6.5

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