Rambus announces 8Ghz XDR2 memory

[Titanio]

Sorry if old?

http://www.tomshardware.com/hardnews/20050707_104509.html

"The bandwidth requirements of game platforms and graphical applications have been growing exponentially," Steven Woo, Rambus' senior principal engineer at Rambus, told Tom's Hardware Guide. "About every five or six years, it goes up by a factor of 10. PlayStation 3, for example, will have a memory bandwidth capability of 50 GByte per second." If this trend continues, projected Woo, a theoretical 2010 model "PlayStation 4" could require ten times the memory bandwidth as next year's PlayStation 3. A statistical projection made in 2004 by NVIDIA's Vice President of Technical Marketing, Tony Tamasi-- cited by Woo--anticipates that a top-of-the-line 3D game could conceivably require memory bandwidth of 3 TByte per second.

 

[two]

PS3 bandwidth = 50G/seg?
Whole system or just XDR?

 

[ninelven]

erased

 

[suryad]

Dunno if this question has been answered or not before...but would systems come out that would use these sorts of memory for the RAM or would these be exclusively built for GPU RAM?

 

[Unknown Soldier]

Same News .. Different Site

Building on the high-performance XDR memory interface technology, the XDR2 memory interface is targeting applications that require extreme memory bandwidth, such as 3D graphics, advanced video imaging, and network routing and switching applications. In order to achieve high bandwidth efficiency and data rates of 8GHz and beyond the XDR2 memory interface incorporates:

* Micro-threading -- a DRAM core innovation developed to increase memory system efficiency to enable DRAMs to provide more usable data bandwidth to requesting memory controllers, while minimizing power consumption;
* Adaptive Timing -- a speed enhancement to today's XDR FlexPhase(TM) timing circuits that compensates for process, voltage and temperature variations during real-time operation;
* Transmit Equalization -- an output circuit that minimizes the adverse system effects of reflections and attenuation that typically limit the speed of DRAM systems;
* DRSL Signaling -- a 200mV differential signaling standard that provides superior common mode noise rejection with an on-chip terminated point-to-point topology that minimizes reflections and reduced signal transition times associated with device loading and PCB trace stubs.

Read More: http://www.vr-zone.com/?i=2416&s=1

US

 

[two]

Whole system.

Yeah, I've been wondering why we haven't seen a card with XDR yet. Sure it would be expensive, but someone would buy it.

The graphics memory used on the upcoming Playstation 3 is XDR1, running at a modest 4.8GHz, which will deliver bandwidth approaching 50GB/sec according to RAMBUS' Senior Principle Engineer, Steven Woo.

http://www.bit-tech.net/news/2005/07/08/rambus_5x_gddr/

Steven Woo doesn't agree with you.
But in the PS3 oficial specs the XDR bandwidth is 25G/s.
Would be changes in the final specs?

 

[ninelven]

erased

 

[hoom]

25GB/s to RAM + 25GB/s to GPU =...

 

[suryad]

So then this WOULD be a good system RAM choice then?