AMD Radeon RX Vega 56 Mobile vs AMD Radeon R9 M390X

VS

AMD Radeon RX Vega 56 Mobile

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX Vega 56 Mobile and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX Vega 56 Mobile 's Advantages

Released 3 years and 1 months late

Boost Clock1301MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (409.6GB/s vs 160.0GB/s)

1536 additional rendering cores

AMD Radeon R9 M390X 's Advantages

Lower TDP (75W vs 120W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 56 Mobile +214%

9.326 TFLOPS

Radeon R9 M390X

2.961 TFLOPS

Radeon RX Vega 56 Mobile

VS

Radeon R9 M390X

Graphics Card

Jun 2018

Release Date

May 2015

Mobility Radeon

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1138 MHz

Base Clock

-

1301 MHz

Boost Clock

-

800 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

HBM2

Memory Type

GDDR5

2048bit

Memory Bus

256bit

409.6GB/s

Bandwidth

160.0GB/s

Render Config

56

Compute Units

32

-

3584

Shading Units

2048

224

TMUs

128

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

83.26 GPixel/s

Pixel Rate

23.14 GPixel/s

291.4 GTexel/s

Texture Rate

92.54 GTexel/s

18.65 TFLOPS

FP16 (half)

2.961 TFLOPS

9.326 TFLOPS

FP32 (float)

2.961 TFLOPS

582.8 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

120W

TDP

75W

-

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Vega 10

GPU Name

Amethyst

Vega 10 XL (215-0894216)

GPU Variant

Amethyst XT

GCN 5.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

12.5 billion

Transistors

5 billion

495 mm²

Die Size

366 mm²

Graphics Features

12 (12_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.4

Shader Model

6.3

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