USED & TESTED, PULLED FROM WORKING APPLE G5
The Radeon HD 5870 Mac Edition was a high-end graphics card by ATI, launched on June 30th, 2010. Built on the 40 nm process, and based on the Cypress graphics processor, in its Cypress XT variant, the card supports DirectX 11.2.
The Cypress graphics processor is a large chip with a die area of 334 mm² and 2,154 million transistors. It features 1600 shading units, 80 texture mapping units, and 32 ROPs.
ATI has paired 1,024 MB GDDR5 memory with the Radeon HD 5870 Mac Edition, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 1195 MHz (4.8 Gbps effective). Being a dual-slot card for the Apple Mac Pro desktop.
The ATI Radeon HD 5870 Mac Edition draws power from 2x 6-pin power connectors, with power draw rated at 228 W maximum. Display outputs include: 1x DVI, 2x mini-DisplayPort. Radeon HD 5870 Mac Pro Edition is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 279 mm in length, and features a dual-slot cooling solution.