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Old 07-07-2005, 05:21 PM   #1 (permalink)
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Default Rambus unveils 8GHz XDR 2!

Rambus unveils 8GHz XDR 2
Rambus has announced the second generation of its XDR high-speed memory technology, which the company claims will run five times faster than today's GDDR graphics memory.

Dubbed XDR 2, the technology will provide initial clock speeds of 8GHz. XDR 1 operates at up to 6.4GHz.

The new version of XDR incorporates four key technique, three of which are geared toward eliminating unwanted side-effects within the memory sub-system circuitry that hinder signals.

Rambus said it has tweaked XDR's FlexPhase timing circuits to adapt timing to compensate for "process, voltage and temperature variations during real-time operation". A separate output circuit likewise compensates for "adverse system effects" such as signal attenuation and reflected signals - the latter are further reduced by the architecture's terminated point-to-point topology. XDR 2 also uses a 200mV differential signalling system to suppress noise.

In addition, XDR 2 incorporates micro-threading, a patent-pending technique Rambus introduced last April, when it began licensing the concept. Micro-threading can be added to DRAM chips for a "relatively low incremental cost", the company said at the time, without going into details.

The technique involves partitioning the memory chip's storage into separate addressable areas, to which data requests can be sent in parallel, allowing the memory controller to send, say, four data requests in the time it would previously have taken it to send just one.

Rambus is pitching XDR 2 at graphics applications as the successor to today's GDDR chips. Rambus claims ownership of key components of GDDR and is currently suing five memory makers which it alleges have infringed its intellectual property rights.

The new version of XDR is available for licensing immediately, the company said, but it won't be until 2007 at the earliest before XDR 2 appears in shipping product.

XDR 1 has already been adopted by Sony for incorporation into the PlayStation 3. Samsung began shipping 256Mb XDR DRAM chips earlier this year. Memory maker Elpida has also licensed XDR
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Old 07-07-2005, 05:25 PM   #2 (permalink)
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Hopefully it isnt as expensive as my RD ram... And isnt as hot
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Old 07-07-2005, 05:27 PM   #3 (permalink)
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I think it would just be for video cards.
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Old 07-07-2005, 05:38 PM   #4 (permalink)
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Origional XDR is for PC's, once again with high speeds and little bandwidth (The intel and rambus way)



Single Channel, 3.2 GHZ and 12.8 GIG of bandwidth

I just love the fact, that my old PC ram was soo much faster than my current ram in my new PC

Going from my old PC to new PC, i doubled my memory bandwidth, and cut the clockspeed down to a 1/4th of the old speed
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Old 07-07-2005, 05:45 PM   #5 (permalink)
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New ones are probably just for video cards. Rambus lost the war against DDR because of price.
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Old 07-07-2005, 07:42 PM   #6 (permalink)
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yeah another technology to watch I hope it doesn't crash and burn out of the gate..again.
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Old 07-07-2005, 07:46 PM   #7 (permalink)
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yeah I was about to say it's only gonna be a ridiculous price per meg if you wanted it.....if it's in vid cards only though that'd be a whole new story....it'd be crazy if it was actually affordable like DDR prices and AMD wound up using it in the future
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Old 07-07-2005, 07:54 PM   #8 (permalink)
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we can only dream...
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Old 07-07-2005, 07:58 PM   #9 (permalink)
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What would memory that fast be used for? Video cards?
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Old 07-07-2005, 08:21 PM   #10 (permalink)
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I betcha that technology dies and ddr will thrive.
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