AMD Radeon R9 M390X vs AMD Radeon RX 470 Mobile

VS

AMD Radeon R9 M390X

AMD Radeon RX 470 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 8GB VRAM Radeon RX 470 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Lower TDP (75W vs 85W)

AMD Radeon RX 470 Mobile 's Advantages

Released 1 years and 3 months late

Boost Clock1074MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 160.0GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 M390X

2.961 TFLOPS

Radeon RX 470 Mobile +48%

4.399 TFLOPS

Radeon R9 M390X

VS

Radeon RX 470 Mobile

Graphics Card

May 2015

Release Date

Aug 2016

Crystal System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

926 MHz

-

Boost Clock

1074 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

224.0GB/s

Render Config

32

Compute Units

32

-

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

34.37 GPixel/s

92.54 GTexel/s

Texture Rate

137.5 GTexel/s

2.961 TFLOPS

FP16 (half)

4.399 TFLOPS

2.961 TFLOPS

FP32 (float)

4.399 TFLOPS

185.1 GFLOPS

FP64 (double)

274.9 GFLOPS

Board Design

75W

TDP

85W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Ellesmere

Amethyst XT

GPU Variant

Ellesmere PRO

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

5.7 billion

366 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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