Feex·GPU
AMD · Radeon

AMD Radeon R9 M390

The AMD Radeon R9 M390 is a graphics card released on June 1, 2015, built on the GCN architecture using a 28 nm process. It has 1,024 shading units, 4 GB of GDDR5 memory on a 256-bit bus, 174.7 GB/s of memory bandwidth and a boost clock of 958 MHz. It supports DirectX 12 and OpenGL 4.4.

GCNPitcairn28 nm
7/10 key specs recorded · 25 facts

Depth: 13 recorded fields, 2 features

Specification data last verified October 1, 2026 against AMD.com Specifications and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 7 of 10 tracked specifications recorded.

AMD.com SpecificationsWikipedia GPU list tables (wikigrid-2026-09)
Shading units
1,024cores
Memory
4 GB
GDDR5 · 256-bit
Boost clock
n/a
958 MHz base
Board power
n/a

Not to be confused with

This page covers the AMD Radeon R9 M390 specifically. It is a different product from AMD Radeon R9 M390X, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture GCN
Codename Pitcairn
Chip Not recorded
Process node 28 nm
Transistors Not recorded
Die size Not recorded

The AMD Radeon R9 M390 is based on the GCN architecture, uses the Pitcairn graphics processor and is manufactured on a 28 nm process.

Shader configuration

Shading units 1,024
Compute units Not recorded
Streaming multiprocessors Not recorded
Execution units Not recorded
Texture units (TMUs) Not recorded
Render output units (ROPs) Not recorded
Ray tracing cores Not recorded
Tensor / AI cores Not recorded
XMX engines Not recorded
Infinity cache Not recorded

The AMD Radeon R9 M390 has 1,024 shading units.

The AMD Radeon R9 M390 does not use XMX engines; those are specific to Intel Arc graphics. Feex has no recorded ray tracing core count for the AMD Radeon R9 M390.

Clock speeds

Base clock 958 MHz
Boost clock Not recorded
Game clock Not recorded
Memory clock Not recorded
Effective memory clock Not recorded

The AMD Radeon R9 M390 runs at a base clock of 958 MHz.

Memory

Size 4 GB
Type GDDR5
Bus width 256-bit
Bandwidth 174.7 GB/s

The AMD Radeon R9 M390 is equipped with 4 GB of GDDR5 memory, uses a 256-bit memory bus and delivers 174.7 GB/s of memory bandwidth.

Market

Launched June 1, 2015
Launch price Not recorded
Status Not recorded
Form factor Not recorded
Segment Desktop
Series Radeon

The AMD Radeon R9 M390 was released on June 1, 2015.

Graphics and compute APIs

The AMD Radeon R9 M390 supports DirectX 12 and OpenGL 4.4.

DirectX 12
OpenGL 4.4

CUDA is an NVIDIA technology and does not apply to the AMD Radeon R9 M390. Feex has no recorded Vulkan version for the AMD Radeon R9 M390. Feex has no recorded OpenCL version for the AMD Radeon R9 M390.

Features

The AMD Radeon R9 M390 has 2 supported features recorded outside the media engine. A feature that no source mentions is shown as not listed, never as unsupported.

Platform

  • Supported: Radeon Dual Graphics
    Support for pairing an AMD APU's integrated graphics with a compatible Radeon GPU.
  • Supported: Switchable graphics
    Support for switching between integrated and dedicated graphics to balance power use and performance.
Not listed (2)

No source Feex holds states whether the AMD Radeon R9 M390 supports Resizable BAR and AMD SmartShift. That is silence, not a statement that they are unsupported.

The AMD Radeon R9 M390 supports Radeon Dual Graphics and Switchable graphics under Platform.

Frequently asked questions

How much VRAM does the AMD Radeon R9 M390 have?

The AMD Radeon R9 M390 has 4 GB of GDDR5 memory on a 256-bit bus. Its memory bandwidth is 174.7 GB/s.

When was the AMD Radeon R9 M390 released?

The AMD Radeon R9 M390 was released on June 1, 2015.

Corrections to this record

After an audit, 1 empty field was filled from sources. Each change is listed with its old value, new value, rule and sources.

1 filled value

The audit log is public: all changes for this GPU, the corrections overview and the method.