AMD Radeon R9 M390X vs NVIDIA GeForce GTX 980MX

VS

AMD Radeon R9 M390X

NVIDIA GeForce GTX 980MX

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 8GB VRAM GeForce GTX 980MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

384 additional rendering cores

Lower TDP (75W vs 148W)

NVIDIA GeForce GTX 980MX 's Advantages

Released 1 years and 1 months late

Boost Clock1178MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (192.0GB/s vs 160.0GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 M390X

2.961 TFLOPS

GeForce GTX 980MX +32%

3.92 TFLOPS

Radeon R9 M390X

VS

GeForce GTX 980MX

Graphics Card

May 2015

Release Date

Jun 2016

Crystal System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1050 MHz

-

Boost Clock

1178 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

192.0GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1664

128

TMUs

104

32

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

75.39 GPixel/s

92.54 GTexel/s

Texture Rate

122.5 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

3.920 TFLOPS

185.1 GFLOPS

FP64 (double)

122.5 GFLOPS

Board Design

75W

TDP

148W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GM204

Amethyst XT

GPU Variant

N16E-GXX-A1

GCN 3.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

5.2 billion

366 mm²

Die Size

398 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

6.3

Shader Model

6.4

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