AMD Radeon HD 6650M vs AMD Radeon R5 A255

VS

AMD Radeon HD 6650M

AMD Radeon R5 A255

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6650M 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 HD 6650M 's Advantages

96 additional rendering cores

AMD Radeon R5 A255 's Advantages

Released 3 years late

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6650M

0.576 TFLOPS

Radeon R5 A255 +25%

0.721 TFLOPS

Radeon HD 6650M

VS

Radeon R5 A255

Graphics Card

Jan 2011

Release Date

Jan 2014

Vancouver

Generation

All-In-One

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

940 MHz

800 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

6

-

480

Shading Units

384

24

TMUs

24

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

7.520 GPixel/s

14.40 GTexel/s

Texture Rate

22.56 GTexel/s

-

576.0 GFLOPS

FP32 (float)

721.9 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Whistler

GPU Name

Topaz

Whistler LE (216-0810028)

GPU Variant

Topaz PRO (216-0858030)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.55 billion

118 mm²

Die Size

125 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5

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