New Mac Pro rumours - graphics
The past year has seen Apple transition from AMD graphics to Nvidia graphics in its iMac and MacBook Pro, the only Mac model currently shipping with graphics from AMD (ATI Radeon HD 5770 and 5870) is the Mac Pro.
This doesn't indicate that the new Mac Pro may drop AMD graphics, indeed, a recent Apple job ad for a Systems Electrical Engineer for the Mac Desktop Systems Engineering team notes that the applicant should have experience with AMD as well as Nvidia GPUs and Intel chipsets. In addition, driver support the Radeon HD 7900 series of powerful discrete graphics cards from AMD was referenced in an OS X 10.8.3 beta back in November, along with references to MacPro 6,0 models mentioned earlier. The Radeon HD 7900 series, codenamed Tahiti LE, includes both the Radeon HD 7970 and 7950. These graphic cards offer 3GB of GDDR5 memory and are based on a 28-nanometer chip manufacturing process as well as featuring AMD's Graphics Core Next architecture.
For many pro users the graphics card is crucial. Most significant is the fact that the Mac Pro is the only Mac that allows a user to update the graphics card. According to one report, it would be a disaster for the video world if users were no longer able to upgrade the graphics processor in the Mac Pro. "With every other Mac (iMacs/Mac mini/MacBook Pro) you cannot upgrade the card. Apple wouldn't kill the video industry by stopping the Prowould they?" writes LogicRumours. Some users upgrade the graphics card in an old Mac Pro model to extend its lifespan.
New Mac Pro rumours - hard drive
One thing is certain; the new Mac Pro will offer a Fusion Drive option. Fusion Drive is Apple's new data storage technology that combines a hard drives with flash (or SSD) storage. The Mac operating system manages the contents of the drive so the most frequently accessed files and applications are stored on the faster flash storage, while infrequently used items are left on the hard drive. Unfortunately the technology Apple uses to make the Fusion Drive work is proprietary, so any Flash storage inside the Mac Pro will have to be fitted by Apple when you buy the machine. (And Flash from Apple is more expensive than elsewhere.)
New Mac Pro rumours - networking
Apple also looks likely to add superfast networking technology 802.11ac to the new Mac Pro. The new technology will bring superfast WiFi connectivity to Macs, speeding up throughput as well as improving coverage (it can increase the distance from which you can connect to an access point), and also supercharging Apple's AirDrop features and WiFi syncing.
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