The first claim was based on independent tests comparing the Apple computer with two of its competitors - the Dell Dimension 8300 and the DellPrecision 650.
"We are working closely with Citrix and NVIDIA to enable new usage models to address the needs of our workstation customers, " said Efrain Rovira, executive director of DellPrecision workstations.
"The DellPrecision R5500 offers the highest user density available on a XenServer certified platform for XenDesktop HDX 3D Pro, with four concurrent users per host, " said Derek Thorslund, director of product management, HDX technology at Citrix.