SPACE SAV­INGS

HWM (Malaysia) - - LEARN -

And just like how sky­scrapers help make the most of scarce land, HBM stacks en­able sig­nif­i­cant space sav­ings on PCBs. 1GB of GDDR5 may take up 672mm², but 1GB of HBM would re­quire just 35mm² of space, which trans­lates into over 90 per­cent in space sav­ings.

As GDDR5 strug­gles to keep up with grow­ing mem­ory band­width de­mands, more chips are re­quired, which in turn re­quire more space. Clearly, that isn't sus­tain­able, and HBM helps re­verse the bur­geon­ing size of higher-end cards. The Radeon R9 Fury X's PCB is just slightly over 19cm long, 30 per­cent shorter than that of the Radeon R9 290X, the pre­vi­ous gen­er­a­tion's flag­ship.

HBM will en­able much more com­pact high-end cards, which will in turn al­low pow­er­ful sys­tems to be as­sem­bled in cases with far smaller space foot­prints.

28mm

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