AMD Radeon Pro 555 vs AMD Radeon R9 M385X

VS

AMD Radeon Pro 555

AMD Radeon R9 M385X

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 4GB VRAM Radeon R9 M385X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 2 years and 1 months late

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

AMD Radeon R9 M385X 's Advantages

Boost Clock1100MHz

More VRAM (4GB vs 2GB)

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 555

1.306 TFLOPS

Radeon R9 M385X +50%

1.971 TFLOPS

Radeon Pro 555

VS

Radeon R9 M385X

Graphics Card

Jun 2017

Release Date

May 2015

Radeon Pro Mac

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1100 MHz

1275 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

81.60GB/s

Bandwidth

76.80GB/s

Render Config

12

Compute Units

14

-

768

Shading Units

896

48

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

17.60 GPixel/s

40.80 GTexel/s

Texture Rate

61.60 GTexel/s

1306 GFLOPS

FP16 (half)

-

1306 GFLOPS

FP32 (float)

1.971 TFLOPS

81.60 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 21

GPU Name

Strato

Polaris 21 PRO

GPU Variant

Strato XT

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

2.08 billion

123 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5

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