AMD Radeon R9 M390X vs NVIDIA GeForce GTX 980M

VS

AMD Radeon R9 M390X

NVIDIA GeForce GTX 980M

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

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 7 months late

512 additional rendering cores

NVIDIA GeForce GTX 980M 's Advantages

Boost Clock1127MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (160.4GB/s vs 160.0GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 M390X

2.961 TFLOPS

GeForce GTX 980M +16%

3.462 TFLOPS

Radeon R9 M390X

VS

GeForce GTX 980M

Graphics Card

May 2015

Release Date

Oct 2014

Crystal System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1038 MHz

-

Boost Clock

1127 MHz

1250 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

160.4GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1536

128

TMUs

96

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

72.13 GPixel/s

92.54 GTexel/s

Texture Rate

108.2 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

3.462 TFLOPS

185.1 GFLOPS

FP64 (double)

108.2 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GM204

Amethyst XT

GPU Variant

N16E-GX-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

6.7 (6.4)

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