Introducing the all-new Mac Pro. Thanks to the next-generation Quad-Core Intel Xeon processors and new system architecture, the new Mac Pro delivers performance that's nearly twice as fast as before. Each processor features an integrated memory controller and 8MB of fully shared L3 cache. The NVIDIA GeForce GT 120 graphics processor with 512MB of GDDR3 memory provides up to 2.9x the performance of previous Mac Pro standard graphics cards. For even more graphics power, choose the ATI Radeon HD 4870 with 512MB of GDDR5 memory. With blazing-fast 1066MHz DDR3 ECC SDRAM, all-new high-performance graphics, a redesigned interior for easier expansion, and up to 4TB of internal storage, it's the most advanced Mac Pro ever.