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Hynix HBM Presentation - many slides!

Orangey

Orangey

Orangey

Soldato
Joined
22 Aug 2008
Posts
8,338
1st Gen HBM

Hynix plans to put four DRAM slices over a single base layer. DRAM dies will be connected to each other with vertical channels called through-silicon vias (TSV). Each of those is capable of transmitting 1Gbps, which theoretically should give us 128GB/s of bandwidth. First generation of HBM would offer up to 4 dies per stack.

2nd Gen HBM

Hynix is still developing this technology. The company is currently testing 256 MB slices forming 1GB stacks. Soon, Hynix will start stacking 1GB dies to form 4GB modules. And we are just talking about 4-layer stacks. Nothing, except further research and development, is keeping us away from stacking 8 layers, only this option will only increase the capacity, as bandwidth will be limited to what 4-layers can offer (at least that’s what I’m getting from these slides). Second generation HBM will be available either 4 or 8 layers (forming 4GB or 8GB stacks). The speed per stack will double (256 GB/s).
Click to expand...

http://videocardz.com/52874/hynix-high-bandwidth-memory-presentation-leaks-out

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I wonder how the balancing act works between secrecy and marketing. If AMD have this tech ready to go in their next chip they could even get on the evening news maybe. But then Nvidia get extra time to find a partner (like Hynix), rush through a design and start talking about their HBM card. Everyone always says "if they had this they'd be shouting from the rooftops about it", but is it that simple?
 
You forgot the Titan Boom. That was a big jump. :D

Although if you are still on 1080p, I could see how you might get the idea it's stagnant. The push has been toward 4K. For example, the 290X really shone there compared to the increases elsewhere. GPUs are being tuned for 4K perf: more ROPs, VRAM etc. We saw bigger gains there because before it had been just a dream. Also bottlenecks (which Mantle tried to address, at least in part) kept 1080p FPS along a more shallow curve. Things are happening now across the board that will see computing change drastically in the next few years.
 
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