AMD Radeon R9 M265X vs AMD Radeon R5 A255

VS

AMD Radeon R9 M265X

AMD Radeon R5 A255

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M265X and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M265X 's Advantages

More VRAM (2GB vs 1024GB)

256 additional rendering cores

AMD Radeon R5 A255 's Advantages

Boost Clock has increased by 50% (940MHz vs 625MHz)

Score

Benchmark

FP32 (float)

Radeon R9 M265X +10%

0.8 TFLOPS

Radeon R5 A255

0.721 TFLOPS

Radeon R9 M265X

VS

Radeon R5 A255

Graphics Card

Mar 2014

Release Date

Jan 2014

Gem System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

575 MHz

Base Clock

925 MHz

625 MHz

Boost Clock

940 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

64.00GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

7.520 GPixel/s

25.00 GTexel/s

Texture Rate

22.56 GTexel/s

-

800.0 GFLOPS

FP32 (float)

721.9 GFLOPS

50.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Venus

GPU Name

Topaz

Venus PRO (216-0846009)

GPU Variant

Topaz PRO (216-0858030)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.55 billion

123 mm²

Die Size

125 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.2.170

-

6.5 (5.1)

Shader Model

6.5

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