AMD Radeon R7 M460 vs AMD Radeon R9 M390X

VS

AMD Radeon R7 M460

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 M460 and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M460 's Advantages

Released 1 years late

Boost Clock1024MHz

AMD Radeon R9 M390X 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 36.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 M460

0.786 TFLOPS

Radeon R9 M390X +276%

2.961 TFLOPS

Radeon R7 M460

VS

Radeon R9 M390X

Graphics Card

May 2016

Release Date

May 2015

Gem System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

730 MHz

Base Clock

-

1024 MHz

Boost Clock

-

1125 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

36.00GB/s

Bandwidth

160.0GB/s

Render Config

6

Compute Units

32

-

384

Shading Units

2048

24

TMUs

128

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

8.192 GPixel/s

Pixel Rate

23.14 GPixel/s

24.58 GTexel/s

Texture Rate

92.54 GTexel/s

786.4 GFLOPS

FP16 (half)

2.961 TFLOPS

786.4 GFLOPS

FP32 (float)

2.961 TFLOPS

49.15 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Meso

GPU Name

Amethyst

Meso XT (216-0864018)

GPU Variant

Amethyst XT

GCN 3.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

5 billion

125 mm²

Die Size

366 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.3

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