GPUMobileReleased —

AMD Radeon R9 M395

256-bit · 1,792 cores

The Radeon R9 M395 is a mobile-class GCN 3 GPU based on the Tonga chip that AMD supplied to Apple for the 27-inch iMac with Retina 5K display (Late 2015), introduced in October 2015. The faster R9 M395X is the fully enabled version of the same chip.

General

Manufacturer: AMD
Model: Radeon R9 M395
Segment: Mobile
GPU chip: Amethyst Pro (Tonga)
Architecture: GCN 3
Release date: —
Price: Search on Amazon

Memory

Memory size: 2 GB
Memory type: GDDR5
Bus width: 256-bit
Bandwidth: 174.7 GB/s
Memory clock: 1,365 MHz

Clocks & silicon

GPU clock: —
Boost clock: 834 MHz
Shader units: 1,792 Stream Processors (28 CU)
Tensor / AI cores: —
RT cores: —
Transistors: 5 billion
Technology (nm): 28 nm
TSMC 28 nm
TDP / TBP: 125 W

Interface & APIs

Bus interface: —
SLI / multi-GPU: —
DirectX: 12 (12_0)
OpenGL: —
Vulkan: —
Other APIs: Metal (macOS), OpenCL

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: —
Peak AI TOPS: —
Notes: No dedicated matrix or AI accelerator. GCN 3 has no packed 2x-rate FP16 math, which AMD introduced with Vega.