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

VS

AMD Radeon R9 M390 Mac Edition

AMD Radeon HD 7470M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 1024MB VRAM Radeon HD 7470M 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

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

864 additional rendering cores

AMD Radeon HD 7470M 's Advantages

Boost Clock800MHz

Lower TDP (25W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +666%

1.962 TFLOPS

Radeon HD 7470M

0.256 TFLOPS

Radeon R9 M390 Mac Edition

VS

Radeon HD 7470M

Graphics Card

May 2015

Release Date

Jan 2012

Crystal System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

750 MHz

-

Boost Clock

800 MHz

1365 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

14.40GB/s

Render Config

16

Compute Units

2

-

1024

Shading Units

160

64

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

3.200 GPixel/s

61.31 GTexel/s

Texture Rate

6.400 GTexel/s

-

1.962 TFLOPS

FP32 (float)

256.0 GFLOPS

122.6 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

25W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

Seymour

Pitcairn PRO (215-0828062)

GPU Variant

Seymour XT (216-0810084)

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

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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