Leaked AMD 2016-18 GPU Roadmap Confirms Previous Rumors on HBM2
AMD has reportedly updated its GPU roadmap for 2016-2018, which reveals that we won’t be seeing the second generation High Bandwidth Memory, or HBM2, on an AMD GPU until the next year.
As reported earlier, next gen Polaris GPU is on track to launch this year, replacing both the Radeon 300 and Radeon Fury series from last year. But, HBM2 isn’t on board; instead both Polaris 10 and Polaris 11 based graphics cards will feature conventional GDDR5(X) memory. This also confirms a previous report claiming the HBM2 for high end GPUs won’t ship until 2017 in any volume.
Still, AMD is planning a massive leap in power efficiency with its Polaris architecture built on a new 14nm FinFET process and 4th generation GCN cores. The chip maker is hoping Polaris could achieve up to 2.5x perf/watt improvement over the current gen 28nm based GPUs.
Further, the upcoming chips will support both HDMI 2.0a and DisplayPort 1.3, and are equally capable of encoding and decoding H.265 video up to 4K resolution.
According to the new AMD GPU roadmap, Vega will be the true successor to the current Fiji, which launches in 2017 with support for HBM2 memory. The next iteration of HBM operates at twice the speed of its predecessor for double the memory bandwidth, as well as scales to capacities 8 times larger than the first generation.
Finally, Vega GPU will be succeeded by Navi in 2018, which will benefit from scalability and unannounced “NextGen” memory. No more details on the Navi architecture are available right now, so we don’t really know what it could possibly be.