AMD Radeon E6465 vs AMD Radeon R5 A255

VS

AMD Radeon E6465

AMD Radeon R5 A255

We compared two Mobile platform GPUs: 2GB VRAM Radeon E6465 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 E6465 's Advantages

Released 1 years and 8 months late

More VRAM (2GB vs 1024GB)

AMD Radeon R5 A255 's Advantages

Boost Clock940MHz

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

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E6465

0.192 TFLOPS

Radeon R5 A255 +275%

0.721 TFLOPS

Radeon E6465

VS

Radeon R5 A255

Graphics Card

Sep 2015

Release Date

Jan 2014

Embedded

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

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

25.60GB/s

Bandwidth

64.00GB/s

Render Config

2

Compute Units

6

-

160

Shading Units

384

8

TMUs

24

4

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

7.520 GPixel/s

4.800 GTexel/s

Texture Rate

22.56 GTexel/s

-

192.0 GFLOPS

FP32 (float)

721.9 GFLOPS

-

Board Design

25W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Caicos

GPU Name

Topaz

-

GPU Variant

Topaz PRO (216-0858030)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.55 billion

67 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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