Intel Atom - History


Intel Atom is a direct successor of the Intel A100 and A110 low-power microprocessors (code-named Stealey), which were built on a 90 nm process, had 512 kB L2 cache and ran at 600 MHz/800 MHz with 3W TDP (Thermal Design Power). Prior to the Silverthorne announcement, outside sources had speculated that Atom would compete with AMD's Geode system-on-a-chip processors, used by the One Laptop per Child (OLPC) project, and other cost and power sensitive applications for x86 processors. However, Intel revealed on 15 October 2007 that it was developing another new mobile processor, codenamed Diamondville, for OLPC-type devices.

"Atom" was the name under which Silverthorne would be sold, while the supporting chipset formerly code-named Menlow was called Centrino Atom.

At Spring Intel Developer Forum (IDF) 2008 in Shanghai, Intel officially announced that Silverthorne and Diamondville are based on the same microarchitecture. Silverthorne would be called the Atom Z5xx series and Diamondville would be called the Atom N2xx series. The more expensive lower-power Silverthorne parts will be used in Intel mobile Internet devices (MIDs) whereas Diamondville will be used in low-cost desktop and notebooks. Several Mini-ITX motherboard samples have also been revealed. Intel and Lenovo also jointly announced an Atom powered MID called the IdeaPad U8.

In April 2008, a MID development kit was announced by Sophia Systems and the first board called CoreExpress-ECO was revealed by a German company LiPPERT Embedded Computers, GmbH. Intel offers Atom based motherboards.

Intel Atom processor family
MID / Ultra-mobile PC / Lifestyle PC
Logo Code-name Series Core On-die GPU GPU speed TDP HT Intel 64 Intel VT-x Release date

Silverthorne Atom Z5xx single (45 nm) No 200 MHz 0.65~2 W No No No April 2008
2~2.4 W Yes No
Lincroft Atom Z6xx single (45 nm) Yes 400 MHz 1.3~3 W Yes No No May 2010
Classmate PC / Netbook / Nettop / Lifestyle PC
Logo Code-name Series Core On-die GPU GPU speed TDP HT Intel 64 Intel VT-x Release date

Diamondville Atom N2xx single (45 nm) No n/a 2.5 W Yes No No June 2008
Atom 2xx 4 W Yes
Atom 3xx dual (45 nm) 8 W September 2008
Pineview Atom N4xx single (45 nm) Yes 200 MHz 6.5 W Yes Yes
No January 2010
Atom D4xx 400 MHz 10 W
Atom N5xx dual (45 nm) 200 MHz 8.5 W
Atom D5xx 400 MHz 13 W
Cedarview Atom D2500 dual (32 nm) Yes 400 MHz 10 W No Yes
No November 2011
Atom D2700 640 MHz Yes
Atom N2600 400 MHz 3.5 W December 2011
Atom N2800 640 MHz 6.5 W

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