AMD Radeon E8870 vs AMD Radeon R9 M395X Mac Edition

VS

AMD Radeon E8870

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon E8870 and 4GB VRAM Radeon R9 M395X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E8870 's Advantages

Lower TDP (75W vs 250W)

AMD Radeon R9 M395X Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 96.00GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E8870

1.536 TFLOPS

Radeon R9 M395X Mac Edition +142%

3.723 TFLOPS

Radeon E8870

VS

Radeon R9 M395X Mac Edition

Graphics Card

Sep 2015

Release Date

May 2015

Embedded

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1500 MHz

Memory Clock

1365 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

174.7GB/s

Render Config

12

Compute Units

32

-

768

Shading Units

2048

48

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

29.09 GPixel/s

48.00 GTexel/s

Texture Rate

116.4 GTexel/s

-

FP16 (half)

3.723 TFLOPS

1.536 TFLOPS

FP32 (float)

3.723 TFLOPS

96.00 GFLOPS

FP64 (double)

232.7 GFLOPS

Board Design

75W

TDP

250W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Saturn

GPU Name

Amethyst

Saturn PRO

GPU Variant

Amethyst XT

GCN 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

5 billion

160 mm²

Die Size

366 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

6.3

Shader Model

6.3

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