""When AMD launched Carrizoearlier this year, it kept the part mobile-only. Carrizo’s entire design was tuned for mobile hardware, and AMD did a number of briefings on how the chip’s power consumption improvements and overall performance per watt were strongest in low power envelopes. It’s therefore a touch surprising to hear that AMD is reportedly planning to bring a desktop version of the chip to market.
Zen’s delay, however, may have left AMD with little choice, since it can’t afford to go an entire year without at least some new products in the market. The company is reportedly prepping a set of both mobile and desktop cores under the Bristol Ridge moniker, built for socket FP4 and AM4 respectively. FP4 would continue to support both DDR3 and DDR4, while AM4 would supposedly be DDR4-only. We know Carrizo has a DDR4 controller on-board, since the embedded version of the product launched with DDR4 support earlier this fall, so it’s not surprising to hear that the same hardware would roll over to desktop.""