AMD Radeon R9 M395X Mac Edition vs ATI Mobility Radeon HD 3850

VS

AMD Radeon R9 M395X Mac Edition

ATI Mobility Radeon HD 3850

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 512MB VRAM Mobility Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages

Released 6 years and 11 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (174.7GB/s vs 48.00GB/s)

1728 additional rendering cores

ATI Mobility Radeon HD 3850 's Advantages

Lower TDP (35W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +903%

3.723 TFLOPS

Mobility Radeon HD 3850

0.371 TFLOPS

Radeon R9 M395X Mac Edition

VS

Mobility Radeon HD 3850

Graphics Card

May 2015

Release Date

Jun 2008

Crystal System

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1365 MHz

Memory Clock

750 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

48.00GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

9.280 GPixel/s

116.4 GTexel/s

Texture Rate

9.280 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

371.2 GFLOPS

232.7 GFLOPS

FP64 (double)

74.24 GFLOPS

Board Design

250W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

M88

Amethyst XT

GPU Variant

-

GCN 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

5 billion

Transistors

0.666 billion

366 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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