Sapphire Technology Limited company, the world's largest supplier of graphics chip maker AMD, in the next couple of weeks, plans to release a new version of graphics card Radeon HD 7790, Sapphire Radeon HD 7990 Atomic. Device is based on two 28-nm graphics chips Tahiti XT2, operation is synchronized by the switching chip PLX PEX8747 (48 lanes PCI-E 3.0), based on the original 12-layer printed circuit board has a 12-phase power system GPU, capable of providing up to 50 A per phase regulator. Another four-channel voltage regulator form VDDCI and two - MVDD. For additional power cards meet the three 8-pin connector.
Atomic HD 7990 is equipped with two BIOS chips and four LED indicates the GPU temperature . Among the special features worth noting the presence of the cooling system covering the entire surface of the circuit board , water cooling , low-noise pump and 240mm radiator.
Video card got 6 GB of memory GDDR5 standard , CrossFireX connector and six video outputs Mini DisplayPort. Frequency for the GPU and video memory Atomic HD 7990 are as follows: 1050 MHz (in the turbo - 1100 MHz) / 6600 MHz.