AMD Radeon R9 M385 vs AMD Radeon Pro 555

VS

AMD Radeon R9 M385

AMD Radeon Pro 555

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385 and 2GB VRAM Radeon Pro 555 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385 's Advantages

Boost Clock1000MHz

More VRAM (4GB vs 2GB)

128 additional rendering cores

AMD Radeon Pro 555 's Advantages

Released 2 years and 1 months late

Larger VRAM bandwidth (81.60GB/s vs 76.80GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 M385 +37%

1.792 TFLOPS

Radeon Pro 555

1.306 TFLOPS

Radeon R9 M385

VS

Radeon Pro 555

Graphics Card

May 2015

Release Date

Jun 2017

Gem System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1200 MHz

Memory Clock

1275 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

81.60GB/s

Render Config

14

Compute Units

12

-

896

Shading Units

768

56

TMUs

48

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

13.60 GPixel/s

56.00 GTexel/s

Texture Rate

40.80 GTexel/s

-

FP16 (half)

1306 GFLOPS

1.792 TFLOPS

FP32 (float)

1306 GFLOPS

112.0 GFLOPS

FP64 (double)

81.60 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

Polaris 21

Strato XT

GPU Variant

Polaris 21 PRO

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

3 billion

160 mm²

Die Size

123 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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