AMD Radeon R9 M390X vs AMD Radeon R9 M280X

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 4GB VRAM Radeon R9 M280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 88.00GB/s)

1152 additional rendering cores

AMD Radeon R9 M280X 's Advantages

Boost Clock1000MHz

Score

Benchmark

FP32 (float)

Radeon R9 M390X +65%

2.961 TFLOPS

Radeon R9 M280X

1.792 TFLOPS

Radeon R9 M390X

VS

Radeon R9 M280X

Graphics Card

May 2015

Release Date

Feb 2015

Crystal System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

1250 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

88.00GB/s

Render Config

-

SM Count

-

32

Compute Units

14

2048

Shading Units

896

128

TMUs

56

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

23.14 GPixel/s

Pixel Rate

16.00 GPixel/s

92.54 GTexel/s

Texture Rate

56.00 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

1.792 TFLOPS

185.1 GFLOPS

FP64 (double)

112.0 GFLOPS

Graphics Processor

Amethyst

GPU Name

Saturn

Amethyst XT

GPU Variant

Saturn XT (216-0843024)

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

2.08 billion

366 mm²

Die Size

160 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2.170

-

CUDA

-

6.3

Shader Model

6.5

Related GPU Comparisons

1

AMD Radeon R9 M390X vs NVIDIA GeForce GT 735M

2

AMD Radeon R9 M390X vs NVIDIA GeForce GTS 350M

3

NVIDIA GeForce RTX 3060 Max Q vs AMD Radeon R9 M390X

4

NVIDIA GeForce MX450 30.5W 10Gbps vs AMD Radeon R9 M390X

5

AMD Radeon RX 7600M XT vs AMD Radeon R9 M390X

6

AMD Radeon R9 M390X vs AMD Radeon R9 M390 Mac Edition

7

NVIDIA GeForce GTX 1080 Max Q vs AMD Radeon R9 M390X

8

AMD Radeon R9 M390X vs NVIDIA NVS 4200M

9

AMD Radeon R9 M390X vs NVIDIA RTX 5000 Embedded Ada Generation

10

AMD Radeon R9 M390X vs ATI Mobility Radeon HD 550v