Changes
Page history
Updated Memory Wall (markdown)
authored
Jan 19, 2021
by
moebiusband73
Hide whitespace changes
Inline
Side-by-side
Memory-Wall.md
View page @
f12cb7bb
...
@@ -44,7 +44,7 @@ And there we are at a new wall processor architecture is facing: The power
...
@@ -44,7 +44,7 @@ And there we are at a new wall processor architecture is facing: The power
wall. Processors are sophisticated heating plates, the performance limit is
wall. Processors are sophisticated heating plates, the performance limit is
governed by the total heat you can dissipate across the tiny die surface. Due
governed by the total heat you can dissipate across the tiny die surface. Due
to this limitation hardware architects trade cores for frequency, from 3.6 GHz
to this limitation hardware architects trade cores for frequency, from 3.6 GHz
in Pentium D to 2 GHz nowadays. To
give the impression of
a performance
in Pentium D to 2 GHz nowadays. To
achieve
a performance
increase the engineers silently increased the TDP (Thermal design power) from
increase the engineers silently increased the TDP (Thermal design power) from
96W in Nehalem to 205W in Cascadelake. With standard DRAM technology you
96W in Nehalem to 205W in Cascadelake. With standard DRAM technology you
achieve more than 150GB/s on one socket. And with High Bandwidth Memory
achieve more than 150GB/s on one socket. And with High Bandwidth Memory
...
...
...
...