Troubles don't seem to end for AMD's Radeon HD 7990 dual-GPU graphics card, with sources indicating that AMD has no new product launches till late-August. Sections of the press reported that the HD 7990 could be released some time this month. A couple of factors could be behind the delay. For starters, there have been reports of shortage of PEX8747 PCIe bridge chips by PLX, which is at the heart of dual-GPU graphics cards, including the GeForce GTX 690. Another factor could relate to how AMD plans to achieve competitive price-performance and performance-Watt ratios for the HD 7990. Meanwhile, launches of NVIDIA's mid-range GeForce GTX 660 Ti and GTS 650 are reportedly closing in.
Source: VR-Zone Chinese