Legit Reviews reports Yeston has created a more cost-effective PCB for AMD's Radeon HD 7950/7970 "Tahiti" graphics cards:
The PCB bears AMD's branding and is supposedly the cost effective "Tahiti" PCB. The designers have done some cost cutting to maximize affordability without sacrificing quality. The design uses an 8+1+1 phase VRM using cheaper ferrite core chokes and LFPAK MOSFETs. Yeston has also made room for two DVI connectors alongside one HDMI 1.4a and one standard DisplayPort 1.2 connector. It would also seem that the dual-BIOS feature is blanked out on this particular PCB.