AMD Radeon R7 A265 vs AMD Radeon R9 M390 Mac Edition

VS

AMD Radeon R7 A265

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 A265 and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 A265 's Advantages

Boost Clock825MHz

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

Score

Benchmark

FP32 (float)

Radeon R7 A265

0.633 TFLOPS

Radeon R9 M390 Mac Edition +209%

1.962 TFLOPS

Radeon R7 A265

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jan 2014

Release Date

May 2015

All-In-One

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

725 MHz

Base Clock

-

825 MHz

Boost Clock

-

900 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

174.7GB/s

Render Config

6

Compute Units

16

-

384

Shading Units

1024

24

TMUs

64

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

30.66 GPixel/s

19.80 GTexel/s

Texture Rate

61.31 GTexel/s

-

633.6 GFLOPS

FP32 (float)

1.962 TFLOPS

39.60 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

Unknown

TDP

80W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Opal

GPU Name

Pitcairn

Opal XT

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

2.8 billion

77 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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