AMD Radeon E6460 vs AMD Radeon R9 M390 Mac Edition

VS

AMD Radeon E6460

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon E6460 and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E6460 's Advantages

Lower TDP (25W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 4 years and 1 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (174.7GB/s vs 25.60GB/s)

864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E6460

0.192 TFLOPS

Radeon R9 M390 Mac Edition +921%

1.962 TFLOPS

Radeon E6460

VS

Radeon R9 M390 Mac Edition

Graphics Card

Apr 2011

Release Date

May 2015

Embedded

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1365 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

174.7GB/s

Render Config

2

Compute Units

16

-

160

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

30.66 GPixel/s

4.800 GTexel/s

Texture Rate

61.31 GTexel/s

-

192.0 GFLOPS

FP32 (float)

1.962 TFLOPS

-

FP64 (double)

122.6 GFLOPS

Board Design

25W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Pitcairn

E6460

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.8 billion

67 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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