AMD Radeon R9 M485X vs AMD Radeon R9 M290X

VS

AMD Radeon R9 M485X

AMD Radeon R9 M290X

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 4GB VRAM Radeon R9 M290X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M485X 's Advantages

Released 2 years and 4 months late

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (160.0GB/s vs 153.6GB/s)

768 additional rendering cores

AMD Radeon R9 M290X 's Advantages

Boost Clock900MHz

Lower TDP (100W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X +28%

2.961 TFLOPS

Radeon R9 M290X

2.304 TFLOPS

Radeon R9 M485X

VS

Radeon R9 M290X

Graphics Card

May 2016

Release Date

Jan 2014

Crystal System

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

1250 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

153.6GB/s

Render Config

32

Compute Units

20

-

2048

Shading Units

1280

128

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

28.80 GPixel/s

92.54 GTexel/s

Texture Rate

72.00 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

2.304 TFLOPS

185.1 GFLOPS

FP64 (double)

144.0 GFLOPS

Board Design

250W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Neptune

Amethyst XT

GPU Variant

Neptune XT (216-0847000)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

2.8 billion

366 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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