If MRAM-memories shall be a competing tech to nand Flashmemories MRAM must have a dense of at least some GBytes.
Do you know something about if MRAM can be stacked?
I beliave that HP Memristor is awesome because the tech is so simply.
Here a 6-minute memristor guide:
http://www.youtube.com/watch?v=rvA5r4LtVnc
From the head researcher of Memristor at HP.
Could you also investigate in digital power?
ARM power efficient processors in forthcoming servers is not the only component which need to be extreme power sufficient for making a server super energy efficient.
Rectifiers for AC/DC conversion needs also to be more energy efficient than today transformation of electricity.
Google initiative which Intel now is a part of, the Climatesaverscomputing.
http://www.climatesaverscomputing.org is only one of some technologies for making the transformation much more energy efficient with much less of heat which toady must be cooling with a fan in servers.
A small swedish (Yes, I´m a swede) company Seps have devoloped a very power efficient AC/DC rectifier where the power transistors is on SiC aka Silicon Carbide substrate.
http://www.seps.se/wp/?page_id=2
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]]>im in agreement with you mostly, the key points im eager for improving ASAP,especially as they are now opening up new markets for the quad core ARM cortex and soon at 2GHz for servers/desktop etc, are the reasons you see so called ‘slow memory bandwidth’ in some arm devices app’s such as “web browsing with multiple tabs” today is simply that the ram they use is clocked slower as in reduced freq by under clocking its full potential to reduce power usage , nothing else.
with MRAM today you remove/improve that speed bottleneck, indeed massively increase the data throughout compared to current under clocked LP DRAM and reduce power usage as a bonus.
im not clear on your DFG=Double Floating Gate-FET advantage over MRAM as regards bandwidth speed data throughput in the future or the other’s mentioned , if they are indeed faster at the given bus width , the new 512 width would be nice in any new ARM server chip to popularise it’s use and uptake everywhere else OC as well as instantly gain its lower (75% less power usage than it is now i think!) power saving’s.
2013 is a long way away in ARM server and other quad use term’s today, the point im making is MRAM exists today, so use it, then later if these other things pan out also include them in the newer design’s at whatever level, internal or external to the SOC as as new buffer/bus/crossbar etc to external D2 and/or D3 to lower Dram/flash etc…
i dont have the time right now to find you direct links but i also read elsewhere recently that they alsp do 4MB and 16MB MRAM packages now, for the future there’s also the 2Gbit/s Physikalisch-Technische Bundesanstalt (PTB) process to include for mass production later see http://www.mram-info.com/
]]>But the MRAM memories have still not become dense as nand Flashmemories.
1MB memory is very small, HP Memristor memory shall be double dense as todays nand Flashmemories
say HP,anyway, HP in cowork with southkorean Hynix where Hynix will start making the Memristor components in 2013.
Japanese Elpida have before announced that they shall start massmaking their ReRAM memory also in 2013.The Memristor memory from HP-Hynix is also a ReRAM memory.
The Memristor memory is very similar to well knowned PRAM or PCM memories
but will not use rare earth metal compounds.Intel-Hynix-Samsung development of PRAM or PCM memories in the company Numonyx will use this rare earth metals as we use today in CD-RW,DVD-RW discs.But this rare compounds metals are to rare for massproduction to challenge nand Flashmemories.