AMD Radeon RX 550 Mobile vs AMD Radeon 550X Mobile

VS

AMD Radeon RX 550 Mobile

AMD Radeon 550X Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550 Mobile 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 RX 550 Mobile 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 48.00GB/s)

AMD Radeon 550X Mobile 's Advantages

Released 9 months late

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon RX 550 Mobile

1.647 TFLOPS

Radeon 550X Mobile

1.647 TFLOPS

Radeon RX 550 Mobile

VS

Radeon 550X Mobile

Graphics Card

Jul 2017

Release Date

Apr 2018

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1100 MHz

Base Clock

1100 MHz

1287 MHz

Boost Clock

1287 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

48.00GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

20.59 GPixel/s

Pixel Rate

20.59 GPixel/s

51.48 GTexel/s

Texture Rate

51.48 GTexel/s

1.647 TFLOPS

FP16 (half)

1.647 TFLOPS

FP32 (float)

1.647 TFLOPS

103.0 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

50W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Polaris 23

Lexa PRO (215-0904018)

GPU Variant

Polaris 23 MXT

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

2.2 billion

103 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

Vulkan

1.2

-

6.4

Shader Model

6.4

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