AMD Radeon R9 M395X vs AMD Radeon HD 7490M

VS

AMD Radeon R9 M395X

AMD Radeon HD 7490M

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X 's Advantages

Released 3 years and 4 months late

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 30.40GB/s)

1888 additional rendering cores

AMD Radeon HD 7490M 's Advantages

Lower TDP (9W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X +1056%

2.961 TFLOPS

Radeon HD 7490M

0.256 TFLOPS

Radeon R9 M395X

VS

Radeon HD 7490M

Graphics Card

May 2015

Release Date

Jan 2012

Crystal System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

950 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

30.40GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

160

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

3.200 GPixel/s

92.54 GTexel/s

Texture Rate

6.400 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

256.0 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

9W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Seymour

Amethyst XT

GPU Variant

Seymour XTX (216-0810005)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

0.37 billion

366 mm²

Die Size

67 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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