MAC PRO 5.1 NORTHBRIDGE HEATSINK REPLACEMENT CLIPS PRO
There is an extremely large price and performance gap between the Mac Pro and Apple's most powerful consumer machine, the iMac. Post revision, the default configuration for the Mac Pro includes two quad-core 2.8 GHz Xeon "Harpertown" processors. The base model could be configured at US$2200, much more comparable with the former base-model dual-core G5 at US$1999, although offering considerably more processing power. Previously, Apple featured the base model with the words "starting at" or "from" when describing the pricing, but the online Apple Store listed the "Mac Pro at $2499", the price for the mid-range model. Original marketing materials for the Mac Pro generally referred to the middle-of-the-line model with 2 × dual-core 2.66 GHz processors. Nevertheless, current-generation Xeons are priced competitively with their high-end desktop platforms, allowing Apple to sell a very powerful system at price points that are considered quite competitive, even by reviewers that do not normally review Apple systems.
The Xeon platform is, however, Intel's "high end" system and not aimed at more general purpose use. The combination of high performance, reasonable expandability, very quiet operation and superb mechanical design makes it routinely appear as the comparison system against which other systems are measured. In general, the Mac Pro has been well received in the press. In order to serve this market, Apple sells a variety of standardized bundles combining a Mac Pro with fairly high-end components for instance, all available setups can support the 30" Cinema Display. Apple's previous machine aimed at this market, the Power Mac G5, had up to four processors, but lacked the storage expansion capabilities of the newer design. Additionally, the codecs used in these applications are generally processor intensive and highly threadable, speeding up almost linearly with additional processor cores.
Although the high-end technical market has not traditionally been an area of strength for Apple, the company has been positioning itself as a leader in non-linear digital editing for high-definition video, which demands storage and memory far in excess of a general desktop machine. The Mac Pro is a high-end computer, similar to higher end Optiplexes and Unix workstations from vendors such as SGI or Sun Microsystems. As such, the name "Mac Pro" was widely used before the machine was announced. Even the naming was "obvious" Apple had dropped the term "Power" from the other machines in their lineup, and started using "Pro" on their higher-end laptop offerings.
But the coincidence of Intel releasing a new Core 2-based Xeon workstation platform just prior to the 2006 Worldwide Developers Conference (WWDC) made it fairly obvious that the resulting machine would be based on it. Rumors initially expected the machine to differ physically from the existing G5 and considered a number of different possible internal configurations based on different chipsets. Speculation about the G5's eventual replacement was common. The iMac, Mac mini, MacBook and MacBook Pro had moved to an Intel-based architecture starting in January 2006, leaving the Power Mac G5 as the only machine in the Mac lineup still based on the PowerPC. An Intel-based replacement for the Power Mac G5 had long been expected prior to the release of the Mac Pro.
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