2009 apple 8 core mac pro nehalem osx memory

If one 18x SuperDrive (the fastest yet in a Mac) isn’t enough, put in a second one for US$100 more. 3.0 specification had been ratified in August 2008 (but not finalized until May 2009)!

2, even though the Early 2011 MacBook Pro models and the Mid 2011 iMac and Mac mini all supported 6.0 Gbps SATA Rev. Oddly, no “cheese grater” Mac Pro used anything faster than 3.0 Gbps SATA Rev. ATI Radeon HD 4870 is available as a build-to-order option. Nvidia GeForce GT 120 with 512 MB of video memory is the default graphics card, and you can add up to three more video cards. The single-CPU model is available at 2.66 and 2.93 GHz, while the dual-CPU can be obtained at 2.26, 2.66, or 2.93 GHz. With two or four modules installed, it falls back to 2 channel mode, which is less efficient. For best performance, you should install memory in sets of three matching modules, as the Nehalem CPU can access up to 3 channels of memory at once. There are two base models, a single-CPU Mac Pro that ships with 3 GB of RAM and supports up to 8 GB, and a dual-CPU Mac Pro that ships with 6 GB of RAM and supports up to 32 GB. For the first time, the least expensive Mac Pro configuration sells for $2,499 – $300 more than the previous entry-level model – which only makes the gap between the $599 base price 2.0 GHz dual-core Mac mini and the 2.66 GHz quad-core Mac Pro that much larger. Nehalem supports hyperthreading, which means each quad-core CPU can work like an 8-core CPU, and Turbo Boost technology allows CPUs to dynamically overclock themselves when circumstances permit – such as letting the 2.93 GHz Mac Pro go as high as 3.33 GHz.Īll that power doesn’t come cheap. Each core has its own 256 KB Level 2 (L2) cache, and each quad-core CPU shares an 8 GB Level 3 (元) cache.

It’s been 14 months since Apple introduced the 2008 Mac Pro, and the 2009 Mac Pro is a big step forward: every configuration uses quad-core Intel Xeon Nehalem CPUs for even more power.

2009 apple 8 core mac pro nehalem osx memory