Which product should i download for dashboard of Pentaho?

I found a bunch of product of Pentaho, what i want is a software which can do the same thing than tableau software, should i download the Pentaho BI suite CE version ? Should I build it myself ? Any help will be appreciated !!

Pentaho BI Suite as a complete package provides you with all the products required to do data integration, reporting, dashboarding, olap cubes, etc. You will find all the necessary tools required to do a complete DWBI/Data analysis job.

Tableau as a software provides a reporting and dashboarding layer which you can use to visualize data available across various sources. You can do similar work using Pentaho also. Pentaho BI suite provides you with the below tools:

• Pentaho BI Platform (User Console,Enterprise console,etc): It includes features for managing security, running reports, displaying dashboards, report bursting, and OLAP analysis. You can create analysis, interactive reports and dashboards using the user console.
• Pentaho Mondrian: Supports MDX and developing cubes.
• Pentaho Report Designer: You can create reports based on the data across various sources.
• Pentaho Data Integration: ETL tool for working with data.

Pentaho also comes with two variants:

• EE (Enterprise Edition): Need to provide licensing cost. Pentaho support is available for the tool.
• CE (Community Edition) : Free of cost. No pentaho support available.

It depends on your requirement, which version you want to choose. It can be either CE or EE.

You can read more on the Pentaho Offerings in wiki here.

Hope this helps :)