AMD Radeon R9 M390 Mac Edition vs AMD Radeon HD 7470A

VS

AMD Radeon R9 M390 Mac Edition AMD Radeon HD 7470A

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 512MB VRAM Radeon HD 7470A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 3 years and 4 months late

Larger VRAM bandwidth (174.7GB/s vs 12.80GB/s)

864 additional rendering cores

AMD Radeon HD 7470A 's Advantages

Lower TDP (25W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +881%

1.962 TFLOPS

Radeon HD 7470A

0.2 TFLOPS

Radeon R9 M390 Mac Edition

VS

Radeon HD 7470A

Graphics Card

May 2015

Release Date

Jan 2012

Crystal System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

1365 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

-

16

Compute Units

2

1024

Shading Units

160

64

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

30.66 GPixel/s

Pixel Rate

2.500 GPixel/s

61.31 GTexel/s

Texture Rate

5.000 GTexel/s

-

FP16 (half)

-

1.962 TFLOPS

FP32 (float)

200.0 GFLOPS

122.6 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

Caicos

Pitcairn PRO (215-0828062)

GPU Variant

-

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.37 billion

212 mm²

Die Size

67 mm²

Board Design

80W

TDP

25W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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