Tag Archives: Intel

Is Montage another MetaRAM ?

Intel Capital invests again

UPDATE: 07/06/2012 – non-viability of LRDIMMs
UPDATE: 07/06/2012 – now a Montage 1333MHz version like Inphi

One memory module maker makes a departure from usual practice (a memory module maker usually picks ONE of the buffer chipset suppliers in order to minimize SKUs) by producing LRDIMMs based on BOTH an Inphi LRDIMM buffer chipset, as well as one from Montage.

This might be indicative of a perception at the memory module markers of higher risk associated with LRDIMMs/Inphi.

The Montage-based LRDIMMs however seem to underperform even the Inphi-based LRDIMMs.

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Why are LRDIMMs single-sourced by Inphi ?

Inphi as a single point of failure

UPDATE: added 06/21/2012: added info on Montage
UPDATE: 07/06/2012 – now a Montage 1333MHz version like Inphi

The top 3 buffer chipset makers are Inphi, IDTI and Texas Instruments.

However Inphi is the only supplier of “iMB” LRDIMM buffer chipsets for Romley.

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Intel’s need for LRDIMMs on roadmap to DDR4

Virtualization and the need for faster processors and more memory

Developments in virtualization have allowed many servers to be replaced by one server.

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Second take

UPDATE: added 06/24/2012: Invensas on LRDIMM design inferiority vs. HyperCloud

Basically LRDIMMs and DDR4 are both going to be using NLST IP.

This article gives a good introduction:

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First the short take

LRDIMMs is at end-of-life and DDR4 is copying NLST IP.

The new Intel Romley virtualization/data center servers from IBM and HP have support for Netlist (NLST) HyperCloud memory.

This is the memory DDR4 is going to copy (license).

LRDIMMs are already copying it – but have implemented it with asymmetrical lines – leading to latency issues – and inability to deliver 1333MHz at 3 DPC.

With HP Smart Memory HyperCloud – you can get 1333MHz at 3 DPC at 24DIMMs on the 2-processor DL360p and DL380p servers.

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HyperCloud, LRDIMMs and DDR4 and the future of server memory

I will try to examine some of the issues related to intellectual property and the constraints that are influencing DDR4 and the direction it will take.

Also an examination of LRDIMMs and their relevance.

And HyperCloud memory from Netlist (NLST).

The other players who may make an appearance:

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