Export date: Thu Oct 17 12:54:44 2019 / +0000 GMT

AMD's infographic on HBM

If one company is bad at bragging, then it's AMD. It's two main competitors are a lot better in that - NVIDIA even bragged about their upcoming GPUs having HBM. So I was surprised that recently I encountered a nice infographic, where AMD was actually bragging. And they deserved to do it!

I wanted to have comparisons with Intel/Micron's HBC, but I leave that for another post as the good information 1 is often a year old.

Very close to the processor

It's using a high-speed bus on the substrate.


And yes, it really matters to be closer to the processor.


HBM versus GDDR5

  • Bus width from 32-bit tot 1024-bit

  • Clockspeed down. We need to wait for how it's calculated 2.

  • Bandwidth up a lot. We can expect 1TB/s for GPUs now

  • Required voltage 14% down, which saves a lot of energy



Better GB/s per Watt

So for maintaining 320GB/s you would need 30 Watts. Now you need 9 Watts. As the reduction in power for the Radeon NANO is almost 100W, you understand that this tells only part of the power-reductions made possible.


A lot smaller

Yes, 94% less surface area. Only part of the reason is the stacking.


Standards AMD has pioneered

HBM has been engineered and implemented by AMD, made a standard by JEDEC and put into sylicon by Hynix.


And finally some bragging! AMD has made many standards we use daily, but never knew it was AMD technology.

  • Mantle. The predecessor of Vulkan, DirectX 12 and more

  • GDDR 1 to 5. Now being replaced by HBM, and not GDDR6

  • Wake-on-LAN. You never knew! Intel and IBM made it into a standard, but AMD introduced the Magic Packet in 1995.

  • DisplayPort Adaptive-Sync. Previously known as FreeSync.

  • X86-64. The reason why you find "amd64" packages in Linux.

  • Integrated Memory Controllers.

  • On-die GPUs.

  • Consumer Multicore CPU, the Athlon 62 X2 3.

  • HSA. Not in the list, probably because it's a recent advancement.

Want to see the full infographic? Click here 4.
  1. -ddr4-understand-the-differences-between-wide-io-h bm-and-hybrid-memory-cube
  2. -and-gpu-memory-clock-real-and-effective-speeds-de mystified/
  3. and-future-of-the-cpu-according-t/1100-6421514/
  4. y-HBM.pdf
Post date: 2016-03-30 00:48:48
Post date GMT: 2016-03-29 22:48:48

Post modified date: 2016-03-30 00:53:45
Post modified date GMT: 2016-03-29 22:53:45

Export date: Thu Oct 17 12:54:44 2019 / +0000 GMT
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