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Line 59: ** Level 4 (L4) shared cache{{dash}}128 MiB{{cn\|reason=No source provided for IEC units, sources only use metric units like KB, MB, GB, etc\|date=May 2021}}{{Original research inline\|certain=y\|date=May 2021}} in size. Best access speed is around 40 GB/s<ref name=sisd_qa_f_mem_hsw /> * [[Computer memory\|Main memory]] ([[primary storage]]){{dash}}[[GiB]]{{cn\|reason=No source provided for IEC units, sources only use metric units like KB, MB, GB, etc\|date=May 2021}}{{Original research inline\|certain=y\|date=May 2021}} in size. Best access speed is around 10 GB/s.<ref name=sisd_qa_f_mem_hsw /> In the case of a [[Non-Uniform Memory Access\|NUMA]] machine, access times may not be uniform * [[Disk storage]] ([[secondary storage]]){{dash}}[[terabyte]]s in size. {{As of \|2017}}, best access speed is from a consumer [[Solid-state drive\|solid state drive]] is about 2000 MB/s<ref>{{cite web\|url=http://www.storagereview.com/samsung_960_pro_m2_nvme_ssd_review\|title=Samsung 960 Pro M.2 NVMe SSD Review\|date=20 October 2016 \|publisher=storagereview.com\|access-date=2017-04-13}}</ref> * [[Nearline storage]] ([[tertiary storage]]){{dash}}up to [[exabytes]] in size. {{As of \|2013}}, best access speed is about 160 MB/s<ref>{{cite web \|url=http://www.lto.org/technology/generations.html \|title=Ultrium – LTO Technology – Ultrium GenerationsLTO \|publisher=Lto.org \|access-date=2014-07-31 \|url-status=dead \|archive-url=https://web.archive.org/web/20110727052050/http://www.lto.org/technology/generations.html \|archive-date=2011-07-27 }}</ref> * [[Offline storage]]

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