Sapphire released their latest Radeon HD 7990 ATOMIC Graphics card at Computex 13. Most of the details regarding two were kept a secret until now. Expreview have managed to get the technical details of the Radeon HD 7990 ATOMIC graphics card along with complete detailed shots of the PCB and the water cooler that comes along with the shipment.
The Sapphire Radeon HD 7990 Atomic Graphics card features two 28nm Tahiti XT2 cores with each and every offering 2048 steam processors. This total amount of 4096 steam processors is what we got on various other HD 7990 custom variants along with the orientation design.
The PCB on the Radeon HD 7990 ATOMIC is considered to be the monster enclosing a 12 layer design with an 18 phase VRM equipped along each side GPU to feature a charge of 36 phases. The VDDCI is power-driven by four phases while on the other hand the MVVD consists of two phases, both GPUs are connected via the PLX8747 bridge connector. Each GPU has its pair of 3GB VRAM running across a 384-bit memory.
Current is made available through 8-pin connectors which is a regular sight on the custom Radeon HD 7990 series models. The card consists of 6 mini-display ports for display connectivity and AMD’s Eyefinity support. Just close to the single Crossfire connector which can also be utilized for Quadfire options is a BIOS switch which is actually used to boost up the clock speed through custom BIOS clock configurations . Length of the card can be an issue, but the height isn’t since thee card uses a custom loop water cooling solution that only takes up a single slot.
Source: Expreview | News Archive