AMD Radeon R9 M385X vs AMD Radeon 550X Mobile

VS

AMD Radeon R9 M385X

AMD Radeon 550X Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X and 4GB VRAM Radeon 550X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385X 's Advantages

Larger VRAM bandwidth (76.80GB/s vs 48.00GB/s)

256 additional rendering cores

AMD Radeon 550X Mobile 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 17% (1287MHz vs 1100MHz)

Score

Benchmark

FP32 (float)

Radeon R9 M385X +19%

1.971 TFLOPS

Radeon 550X Mobile

1.647 TFLOPS

Radeon R9 M385X

VS

Radeon 550X Mobile

Graphics Card

May 2015

Release Date

Apr 2018

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1000 MHz

Base Clock

1100 MHz

Boost Clock

1287 MHz

1200 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

48.00GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

640

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.60 GPixel/s

Pixel Rate

20.59 GPixel/s

61.60 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

1.971 TFLOPS

FP32 (float)

1.647 TFLOPS

123.2 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

Polaris 23

Strato XT

GPU Variant

Polaris 23 MXT

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

2.2 billion

160 mm²

Die Size

103 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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