AMD Radeon HD 7470A vs AMD Radeon R9 M390X

VS

AMD Radeon HD 7470A

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 7470A and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7470A 's Advantages

Lower TDP (25W vs 75W)

AMD Radeon R9 M390X 's Advantages

Released 3 years and 4 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 12.80GB/s)

1888 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7470A

0.2 TFLOPS

Radeon R9 M390X +1380%

2.961 TFLOPS

Radeon HD 7470A

VS

Radeon R9 M390X

Graphics Card

Jan 2012

Release Date

May 2015

All-In-One

Generation

Crystal System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

4GB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

12.80GB/s

Bandwidth

160.0GB/s

Render Config

2

Compute Units

32

-

160

Shading Units

2048

8

TMUs

128

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

23.14 GPixel/s

5.000 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

200.0 GFLOPS

FP32 (float)

2.961 TFLOPS

-

FP64 (double)

185.1 GFLOPS

Board Design

25W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Amethyst

-

GPU Variant

Amethyst XT

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

5 billion

67 mm²

Die Size

366 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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