AMD Radeon R5 A255 vs ATI Mobility Radeon HD 4570

VS

AMD Radeon R5 A255

ATI Mobility Radeon HD 4570

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 512MB VRAM Mobility Radeon HD 4570 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 5 years late

Boost Clock940MHz

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

304 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A255 +567%

0.721 TFLOPS

Mobility Radeon HD 4570

0.108 TFLOPS

Radeon R5 A255

VS

Mobility Radeon HD 4570

Graphics Card

Jan 2014

Release Date

Jan 2009

All-In-One

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-II

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

12.80GB/s

Render Config

6

Compute Units

1

-

384

Shading Units

80

24

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

64 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

2.720 GPixel/s

22.56 GTexel/s

Texture Rate

5.440 GTexel/s

-

721.9 GFLOPS

FP32 (float)

108.8 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Topaz

GPU Name

M92

Topaz PRO (216-0858030)

GPU Variant

M92-M2 XT A11 (216-0728006)

GCN 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.55 billion

Transistors

0.242 billion

125 mm²

Die Size

73 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5

Shader Model

4.1

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