AMD Radeon R9 M290X Mac Edition vs AMD Radeon R7 A265

VS

AMD Radeon R9 M290X Mac Edition

AMD Radeon R7 A265

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M290X Mac Edition and 2GB VRAM Radeon R7 A265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 10 months late

Boost Clock has increased by 18% (975MHz vs 825MHz)

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

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M290X Mac Edition +215%

1.997 TFLOPS

Radeon R7 A265

0.633 TFLOPS

Radeon R9 M290X Mac Edition

VS

Radeon R7 A265

Graphics Card

Nov 2014

Release Date

Jan 2014

Crystal System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

850 MHz

Base Clock

725 MHz

975 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

16

Compute Units

6

-

1024

Shading Units

384

64

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

6.600 GPixel/s

62.40 GTexel/s

Texture Rate

19.80 GTexel/s

-

1.997 TFLOPS

FP32 (float)

633.6 GFLOPS

124.8 GFLOPS

FP64 (double)

39.60 GFLOPS

Board Design

80W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

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

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

-

5.1

Shader Model

6.5 (5.1)

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