AMD Radeon R5 A255 vs AMD Radeon 520 Mobile

VS

AMD Radeon R5 A255

AMD Radeon 520 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 2GB VRAM Radeon 520 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 16.00GB/s)

64 additional rendering cores

AMD Radeon 520 Mobile 's Advantages

Released 3 years and 3 months late

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon R5 A255 +9%

0.721 TFLOPS

Radeon 520 Mobile

0.659 TFLOPS

Radeon R5 A255

VS

Radeon 520 Mobile

Graphics Card

Jan 2014

Release Date

Apr 2017

All-In-One

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

16.00GB/s

Render Config

6

Compute Units

5

-

384

Shading Units

320

24

TMUs

20

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

8.240 GPixel/s

22.56 GTexel/s

Texture Rate

20.60 GTexel/s

-

721.9 GFLOPS

FP32 (float)

659.2 GFLOPS

-

FP64 (double)

41.20 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

Banks

Topaz PRO (216-0858030)

GPU Variant

Banks PRO (216-0568010)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

0.69 billion

125 mm²

Die Size

56 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5

Shader Model

5.1

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