AMD Radeon R5 A255 vs ATI Mobility Radeon HD 5850 Mac Edition

VS

AMD Radeon R5 A255

ATI Mobility Radeon HD 5850 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 1024MB VRAM Mobility Radeon HD 5850 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 4 years late

Boost Clock940MHz

ATI Mobility Radeon HD 5850 Mac Edition 's Advantages

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A255

0.721 TFLOPS

Mobility Radeon HD 5850 Mac Edition +39%

1.005 TFLOPS

Radeon R5 A255

VS

Mobility Radeon HD 5850 Mac Edition

Graphics Card

Jan 2014

Release Date

Jan 2010

All-In-One

Generation

Manhattan

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

800

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

10.05 GPixel/s

22.56 GTexel/s

Texture Rate

25.12 GTexel/s

-

721.9 GFLOPS

FP32 (float)

1005 GFLOPS

-

Board Design

Unknown

TDP

30W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

Broadway

Topaz PRO (216-0858030)

GPU Variant

Broadway PRO (216-0769024)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

1.04 billion

125 mm²

Die Size

166 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5

Shader Model

5.0

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