SK Hynix Shows Next-Gen GDDR6 Memory with Double Bandwidth
A couple of weeks ago, memory developer and manufacturer SK Hynix has announced that its GDDR6 technology would be made available in high-end graphics card starting from 2018. At the GPU Technology Conference in Silicon Valley, the company has shown a wafer with the GDDR6 chips and has also shown its specifications.
The company promises a double bandwidth improvement over GDDR5, from 8 Gbps to 16 Gbps. The new GDDR6 chips will also be 10% more power efficient. The module shown had a capacity of 1 GB, although SK Hynix will also produce modules with a 16 Gigabit or 2 GB capacity. Of course, graphics cards can be equipped with multiple of these modules for a higher total capacity.
At the time of writing, the GDDR5X technology can achieve maximum bandwidth speeds of 12 Gbit/s, so the next-generation memory chips would be at least 4 Gbit/s faster compared to the previous generations. A regular 384-bit memory bus (like the one used on the high-end Nvidia Titan Xp) will improve in bandwidth from 547,7 GB/s to 768 GB/s.
According to SK Hynix, GDDR6 also has a number of advantages over it’s largest competitor, High Bandwidth Memory. GDDR6 is much easier to produce and will also cost significantly less to implement.