Rambus unveils 8GHz XDR 2

**MIG-31** · Jul 7, 2005, 07:07 PM

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.
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Stop It · Jul 7, 2005, 07:34 PM

How fast? Yikes, do you think we might actually see it used in anything soon?

mike2h · Jul 7, 2005, 07:42 PM

not until 07+. but they still have xdr(wich his as fast/faster than gddr3 with lower pin count) available, i think we will start seeing more of it (besides ps3) in the next 6-12 months.

The_Neon_Cowboy · Jul 7, 2005, 08:48 PM

but with the speed like that comes the price,
just your and arms, and legs and life saveings

mike2h · Jul 7, 2005, 10:22 PM

that is the whole point of having less pins- lower cost.

Jul 7, 2005, 07:07 PM	#1
MIG-31 HardwareHeaven News Mod Join Date: Dec 2002 Location: Nottingham,UK Posts: 56,854 Rep Power: 471 System Specs	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. _______________ Read More: Channel Register __________________ Please Post Your News Submissions Here

Jul 7, 2005, 07:34 PM	#2
Stop It HHs' Resident Kitty Lover Join Date: Oct 2004 Location: Biggleswade, UK Posts: 1,432 Rep Power: 78 System Specs	How fast? Yikes, do you think we might actually see it used in anything soon? __________________ Sig Courtesy of Mousey

Jul 7, 2005, 07:42 PM	#3
mike2h DriverHeaven Extreme Member Join Date: Nov 2002 Location: norcal Posts: 6,483 Rep Power: 91 System Specs	not until 07+. but they still have xdr(wich his as fast/faster than gddr3 with lower pin count) available, i think we will start seeing more of it (besides ps3) in the next 6-12 months. __________________

Jul 7, 2005, 08:48 PM	#4
The_Neon_Cowboy HardwareHeaven Extreme Member Join Date: Dec 2002 Location: U.S.A. Posts: 16,009 Rep Power: 92 System Specs	but with the speed like that comes the price, just your and arms, and legs and life saveings __________________

Jul 7, 2005, 10:22 PM	#5
mike2h DriverHeaven Extreme Member Join Date: Nov 2002 Location: norcal Posts: 6,483 Rep Power: 91 System Specs	that is the whole point of having less pins- lower cost. __________________