AMD Radeon R5 M255 vs AMD Radeon RX 550X Mobile

VS

AMD Radeon R5 M255

AMD Radeon RX 550X Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 2GB VRAM Radeon RX 550X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X Mobile 's Advantages

Released 3 years and 6 months late

Boost Clock has increased by 25% (1176MHz vs 940MHz)

Larger VRAM bandwidth (48.00GB/s vs 32.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

Radeon RX 550X Mobile +108%

1.505 TFLOPS

Radeon R5 M255

VS

Radeon RX 550X Mobile

Graphics Card

Oct 2014

Release Date

Apr 2018

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

925 MHz

Base Clock

1100 MHz

940 MHz

Boost Clock

1176 MHz

1000 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

32.00GB/s

Bandwidth

48.00GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

640

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

18.82 GPixel/s

22.56 GTexel/s

Texture Rate

47.04 GTexel/s

721.9 GFLOPS

FP16 (half)

1.505 TFLOPS

721.9 GFLOPS

FP32 (float)

1.505 TFLOPS

45.12 GFLOPS

FP64 (double)

94.08 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

Polaris 23

Topaz PRO (216-0858030)

GPU Variant

Polaris 23 MXT

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.55 billion

Transistors

2.2 billion

125 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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