AMD Radeon HD 7490M vs AMD Radeon R9 M280X

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7490M and 4GB VRAM Radeon R9 M280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M280X 's Advantages

Released 3 years and 1 months late

Boost Clock1000MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (88.00GB/s vs 30.40GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7490M

0.256 TFLOPS

Radeon R9 M280X +600%

1.792 TFLOPS

Radeon HD 7490M

VS

Radeon R9 M280X

Graphics Card

Jan 2012

Release Date

Feb 2015

London

Generation

Gem System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

950 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

30.40GB/s

Bandwidth

88.00GB/s

Render Config

-

SM Count

-

2

Compute Units

14

160

Shading Units

896

8

TMUs

56

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

3.200 GPixel/s

Pixel Rate

16.00 GPixel/s

6.400 GTexel/s

Texture Rate

56.00 GTexel/s

-

FP16 (half)

-

256.0 GFLOPS

FP32 (float)

1.792 TFLOPS

-

FP64 (double)

112.0 GFLOPS

Graphics Processor

Seymour

GPU Name

Saturn

Seymour XTX (216-0810005)

GPU Variant

Saturn XT (216-0843024)

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.08 billion

67 mm²

Die Size

160 mm²

Board Design

9W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5

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