- Published: Saturday, 15 August 2015 22:47
- Written by Kana Maru
Why AMD and HBM Matters
I’ve finally purchased one of the hottest selling cards on the market, the watercooled AMD Radeon R9 Fury X. I couldn’t wait to get my hand on this card and benchmark it myself. Now what would make AMD bring back the Fury brand from 1999 when ATI was a separate company from AMD? There must be something exciting right? Well for starters all you ever hear anyone talk about now is “HBM” high bandwidth memory. HBM is indeed a big deal since it eliminates a lot of issues that was once faced with GDDR5 in this case. HBM eliminates processing bottlenecking and allows data to be moved quickly and efficiently. Speaking of “efficient”, the power efficiency is much better than GDDR5 as well. HBM runs at a lower voltage.
HBM works by communicating with the GPU via an interposer. HBM ram is stacked and passes data via the “TSVs” - through-silicon vias. HBM also has a wider bus that reaches 1024-bit compared to GDDR5 32-bit. This allows HBM to move more than 100GB/s per stack. Yes more than 100GB/s! AMD along with SK Hynix has definitely created more revolution technology that technologist and PC gamers will love.