Graphics memory exploded in 2017 Says Micron - Next in 2018 is GDDR6
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Clawedge
i do understand that hbm is a bit complicated to manufacture, i believe that micron is not leaning towards the risk of hbm right now, but i do believe hbm is the future. it greatly reduces board complexity. it just needs to mature just a bit more.
Denial
Micron was backing a different technology along with Intel/Nvidia called Hybrid Cube Memory, which is similar to HBM but AMD/SK Hynix beat them to the punch and IIRC HBM was better suited for graphics workloads where as HCM was more for general purpose ones. As far as I know they gave up on the tech, so it's possible they will start shipping their own HBM parts soon.
Shadowdane
With memory sizes on video cards getting bigger and bigger. I bet with GDDR6 we'll see a shift toward 2GB per chip on the PCB.
This would also mean Nvidia would need to move up to 64-bit memory controllers if they want enough actually memory bandwidth for these larger memory footprints.
I bet the GTX 1180 will likely have 12GB DDR6 12Ghz.
Which would fit it with 6 x 2GB chips linked with 64-bit controllers for 384-bit memory interface. That would net 576GB/sec memory bandwidth!
On the GTX 1180Ti would likely upsize to 14GB DDR6 13Ghz or 14Ghz.
That would come out to 7 x 2GB chips again with 64-bit controllers for 448-bit memory interface. Which would get 728GB/sec to 784GB/sec bandwidth depending on the memory speed.
If you compare that to the HBM on Titan V with 653GB/sec memory bandwidth it would really make more sense to just use GDDR6 with a larger memory interface.
RzrTrek
I won't mention the h-word either.
Mufflore
I wondered what woke me up.
Hulk12
HBM isn't expensive for Titan V but yes "pro" GPGPU features (fast FP64 speed, new "Tensor Core"?,...) + "pro" features unlocked are very expensive. 😉
