Friday, July 15th 2016
SK Hynix to Ship HBM2 Memory by Q3-2016
Korean memory and NAND flash giant SK Hynix announced that it will have HBM2 memory ready for order within Q3-2016 (July-September). The company will ship 4 gigabyte HBM2 stacks in the 4 Hi-stack (4-die stack) form-factor, in two speeds - 2.00 Gbps (256 GB/s per stack), bearing model number H5VR32ESM4H-20C; and 1.60 Gbps (204 GB/s per stack), bearing model number H5VR32ESM4H-12C. With four such stacks, graphics cards over a 4096-bit HBM2 interface, graphics cards with 16 GB of total memory can be built.
Source:
SK Hynix Q3 Catalog
77 Comments on SK Hynix to Ship HBM2 Memory by Q3-2016
No doubt there's tons of lost dies on GP102.
It's probably still rare to get hold of, but Samsung is way ahead SK Hynix on this one.
Edit: Consider something like an Intel Xeon D-1567 with on-board extended memory. You could fit such a thing on a motherboard smaller than Mini-ITX. You probably could do it with a motherboard that's twice the size of a Raspberry Pi because you're eliminating the need to run any DDR3/4 wires which adds quite a bit of space and complexity to the motherboard. Moving this complexity to an interposer simplifies a lot of things on the motherboard and for the connection between CPU and mothgerboard. It also would reduce the number contacts on the CPU by a significant amount considering modern DDR is still utilizing parallel data and address buses which are bulky. If you consider that maybe 200-250 of those 288 pins on a DDR4 module go to the CPU, you have two channels so that's 400-500 contacts for DRAM alone. You take a skt2011(or -3) CPU and quad-channel memory brings that number up to a whopping 800-1000 pins for DRAM alone. People might not realize it but I/O takes up most of the pins of microprocessors these days when I/O is external to the processor.
1) It is obvious AMD needs better yields considering undelclocked mid-range card are all they can produce in large volumes right now.
2) Nvidia on the other hand is just doing paper launches of paper launches (literally) so they can make it look like they have actually released cards.