e938ed2d_SharePoint_Server__2007__2010___SharePoint_Farm_Solution
[0] Deployment [Sandboxed Solution] Deployment of Sandbox solutions is a lot easier and straight forward and a site collection administrator uploads and activates a sandboxed solution.Though after activating the sandboxed solution it can create some unwarrented effects on the site. [Apps for SharePoint] The apps are uploaded in either the public SharePoint app store or to an organization's private app catalog. Once they are made available in a SharePoint site a user can install them on the local SharePoint Site. [SharePoint Farm Solution] 
Mostly a farm solutiona requires a Farm Administrator to do the deployment and mostly restarts the IIS on all the WFEs, which causes a disruption in the service.
A Point For Sharing On SharePoint Server (2007, 2010)
SharePoint Farm Solution