AMD Radeon R9 M390 Mac Edition

AMD Radeon R9 M390 Mac Edition — 2 Гб GDDR5, 1,024 ядер, GPI 1.9

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Performance Rating

The Radeon R9 M390 Mac Edition was a mobile graphics chip by AMD, launched on May 5th, 2015. Built on the 28 nm process, and based on the Pitcairn graphics processor, in its Pitcairn PRO variant, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The Pitcairn graphics processor is an average sized chip with a die area of 212 mm² and 2,800 million transistors. Unlike the fully unlocked Radeon HD 7870 GHz Edition, which uses the same GPU but has all 1280 shaders enabled, AMD has disabled some shading units on the Radeon R9 M390 Mac Edition to reach the product's target shader count. It features 1024 shading units, 64 texture mapping units, and 32 ROPs. AMD has paired 2,048 MB GDDR5 memory with the Radeon R9 M390 Mac Edition, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 958 MHz, memory is running at 1365 MHz (5.5 Gbps effective).

A100 A100
H200 H200
MI325X MI325X

AMD Radeon R9 M390 Mac Edition

1.9

AMD Radeon R9 M390 Mac Edition

1.9

Memory

Memory Size

2 GB

Memory Type

Memory Bandwidth

174.7 GB/s

Memory Bus Width

256 бит

ML Performance

FP16 (Half Precision)

No TFLOPS

BF16 (Brain Float)

No TFLOPS
311.84 TFLOPS
(NVIDIA A800 SXM4 80 GB)

TF32 (TensorFloat)

Compute Power

FP32 (Single Precision)

1.962 TFLOPS

FP64 (Double Precision)

0.1226 TFLOPS

CUDA Cores

Architecture & Compatibility

GPU Architecture

SM (Streaming Multiprocessor)

PCIe Version

PCIe 3.0 x16

ML Software Support

CUDA Version

Clocks & Performance

Base Clock

Memory Clock

Power Consumption

Recommended PSU

Power Connector

None

TDP/TGP

80 W
unknown
(NVIDIA CMP 70HX)

Rendering

Texture Units (TMU)

L2 Cache

512 KB

Additional

Slots

MXM Module
SXM Module
(NVIDIA B300)

Release Date

May 5, 2015
March 12, 2026
(Intel Arc B770)

Display Outputs

Portable Device Dependent
Portable Device Dependent
(NVIDIA GeForce RTX 5090 Mobile)

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