AMD Radeon R9 M390 Mac Edition vs AMD Radeon R7 M270

VS

AMD Radeon R9 M390 Mac Edition AMD Radeon R7 M270

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 2GB VRAM Radeon R7 M270 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 1 years and 4 months late

Larger VRAM bandwidth (174.7GB/s vs 28.80GB/s)

640 additional rendering cores

AMD Radeon R7 M270 's Advantages

Boost Clock825MHz

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +209%

1.962 TFLOPS

Radeon R7 M270

0.633 TFLOPS

Radeon R9 M390 Mac Edition

VS

Radeon R7 M270

Graphics Card

May 2015

Release Date

Jan 2014

Crystal System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

725 MHz

-

Boost Clock

825 MHz

1365 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

16

Compute Units

6

1024

Shading Units

384

64

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

30.66 GPixel/s

Pixel Rate

6.600 GPixel/s

61.31 GTexel/s

Texture Rate

19.80 GTexel/s

-

FP16 (half)

-

1.962 TFLOPS

FP32 (float)

633.6 GFLOPS

122.6 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

Opal

Pitcairn PRO (215-0828062)

GPU Variant

Opal XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 mm²

Board Design

80W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

CUDA

-

5.1

Shader Model

6.5 (5.1)

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