AMD Radeon Pro 555 vs AMD Radeon R5 M420

VS

AMD Radeon Pro 555

AMD Radeon R5 M420

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 4GB VRAM Radeon R5 M420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 1 years and 1 months late

Larger VRAM bandwidth (81.60GB/s vs 16.00GB/s)

448 additional rendering cores

AMD Radeon R5 M420 's Advantages

Boost Clock850MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon Pro 555 +140%

1.306 TFLOPS

Radeon R5 M420

0.544 TFLOPS

Radeon Pro 555

VS

Radeon R5 M420

Graphics Card

Jun 2017

Release Date

May 2016

Radeon Pro Mac

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

780 MHz

-

Boost Clock

850 MHz

1275 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

81.60GB/s

Bandwidth

16.00GB/s

Render Config

12

Compute Units

5

-

768

Shading Units

320

48

TMUs

20

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

6.800 GPixel/s

40.80 GTexel/s

Texture Rate

17.00 GTexel/s

1306 GFLOPS

FP16 (half)

-

1306 GFLOPS

FP32 (float)

544.0 GFLOPS

81.60 GFLOPS

FP64 (double)

34.00 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 21

GPU Name

Jet

Polaris 21 PRO

GPU Variant

Jet PRO (216-0856040)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

0.69 billion

123 mm²

Die Size

56 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5 (5.1)

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