AMD Radeon R9 M390X vs AMD Radeon R9 M280X

VS

AMD Radeon R9 M390X

AMD Radeon R9 M280X

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

32

Compute Units

14

-

2048

Shading Units

896

128

TMUs

56

32

ROPs

16

-

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

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

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

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

-

6.3

Shader Model

6.5

Related GPU Comparisons

1

AMD Radeon R9 M390X vs AMD Radeon Pro W5500M

2

AMD Radeon R9 M390X vs AMD Radeon R9 M380

3

AMD Radeon R9 M390X vs AMD Radeon R9 M395 Mac Edition

4

AMD Radeon R9 M390X vs Intel Arc A770M

5

AMD Radeon R9 M390X vs AMD Radeon Pro 555X

6

AMD Radeon R9 M390X vs NVIDIA GeForce 8400M GT

7

AMD Radeon R9 M390X vs AMD Radeon RX Vega 56 Mobile

8

AMD Radeon R9 M390X vs NVIDIA GeForce RTX 2080 Max Q

9

AMD Radeon R9 M390X vs AMD Radeon RX 560 Mobile

10

AMD Radeon R9 M390X vs ATI Mobility Radeon HD 5730

Related News

1

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

2

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

3

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

4

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

5

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

6

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

7

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

8

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

9

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

10

World's First! Intel Arc B580 Graphics Card Arrives Early