AMD Radeon R9 M385 vs AMD Radeon RX 580X Mobile

VS

AMD Radeon R9 M385

AMD Radeon RX 580X Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385 and 8GB VRAM Radeon RX 580X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X Mobile 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 8% (1077MHz vs 1000MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 76.80GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385

1.792 TFLOPS

Radeon RX 580X Mobile +176%

4.963 TFLOPS

Radeon R9 M385

VS

Radeon RX 580X Mobile

Graphics Card

May 2015

Release Date

Apr 2018

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

900 MHz

Base Clock

1000 MHz

Boost Clock

1077 MHz

1200 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

256.0GB/s

Render Config

14

Compute Units

36

-

896

Shading Units

2304

56

TMUs

144

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

34.46 GPixel/s

56.00 GTexel/s

Texture Rate

155.1 GTexel/s

-

FP16 (half)

4.963 TFLOPS

1.792 TFLOPS

FP32 (float)

4.963 TFLOPS

112.0 GFLOPS

FP64 (double)

310.2 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

Polaris 20

Strato XT

GPU Variant

Polaris 20M XT

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

5.7 billion

160 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.4

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