AMD Radeon R9 M290X vs AMD Radeon R9 M390X

VS

AMD Radeon R9 M290X

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M290X 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 R9 M290X 's Advantages

Boost Clock900MHz

AMD Radeon R9 M390X 's Advantages

Released 1 years and 4 months late

Larger VRAM bandwidth (160.0GB/s vs 153.6GB/s)

768 additional rendering cores

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon R9 M290X

2.304 TFLOPS

Radeon R9 M390X +28%

2.961 TFLOPS

Radeon R9 M290X

VS

Radeon R9 M390X

Graphics Card

Jan 2014

Release Date

May 2015

Crystal System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

160.0GB/s

Render Config

20

Compute Units

32

-

1280

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

23.14 GPixel/s

72.00 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

2.304 TFLOPS

FP32 (float)

2.961 TFLOPS

144.0 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

100W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Neptune

GPU Name

Amethyst

Neptune XT (216-0847000)

GPU Variant

Amethyst XT

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

5 billion

212 mm²

Die Size

366 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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