SK Hynix has shown their first GDDR6 wafers and specifications at GTC 2017

  

The GDDR6 modules shown at GTC come with a capacity of 8Gb (1GB) per module, though GDDR6 will also come in capacities of 16Gb (2GB) per module. This will allow GDDR6-based GPUs to offer higher memory capacities, as well as offer more memory bandwidth.  

These changed will effectively allow GDDR6 to offer te same memory bandwidth and capacities as GDDR5 while using half the memory bus size on the GPU-side and half the GDDR6 memory chips. This means that a GPU with a 128-bit memory bus with GDDR6 can offer the same performance as a GPU using a 256-bit memory bus and GDDR5. 

These changes will allow mid-range GPUs to be created with a much less complex memory sub-system, while also offering reduced power draw and cost due to reduced power requirements and component count. 

  
  

 

It looks like at launch GDDR6 will offer maximum bandwidths of 16Gbps, with lower end models likely coming with bandwidths of 12-15Gbps, which is still faster than the 11.4Gbps GDDR5X modules used in the Nvidia Titan Xp. 

 

You can join the discussion on SK Hynix’s GDDR6 memory on the OC3D Forums. 
  

Special thanks to  The F34R Channel for bringing this news to our attention.  

  

The GDDR6 modules shown at GTC come with a capacity of 8Gb (1GB) per module, though GDDR6 will also come in capacities of 16Gb (2GB) per module. This will allow GDDR6-based GPUs to offer higher memory capacities, as well as offer more memory bandwidth.  

These changed will effectively allow GDDR6 to offer te same memory bandwidth and capacities as GDDR5 while using half the memory bus size on the GPU-side and half the GDDR6 memory chips. This means that a GPU with a 128-bit memory bus with GDDR6 can offer the same performance as a GPU using a 256-bit memory bus and GDDR5. 

These changes will allow mid-range GPUs to be created with a much less complex memory sub-system, while also offering reduced power draw and cost due to reduced power requirements and component count. 

  
  

 

It looks like at launch GDDR6 will offer maximum bandwidths of 16Gbps, with lower end models likely coming with bandwidths of 12-15Gbps, which is still faster than the 11.4Gbps GDDR5X modules used in the Nvidia Titan Xp. 

 

You can join the discussion on SK Hynix’s GDDR6 memory on the OC3D Forums. 
  

Special thanks to  The F34R Channel for bringing this news to our attention.