Rambus on Friday said that Samsung Electronics would offer a 1Gb XDR DRAM memory device. Samsung's 1Gb XDR DRAM device will broaden the availability of XDR technology for gaming, computing and consumer electronics applications.
"Samsung's market leadership means system manufacturers can be assured of a reliable supply of our XDR DRAM. With XDR memory's world-leading bandwidth performance, designers can meet their system requirements with fewer devices and greater power efficiency," said Sharon Holt, senior vice president of licensing and marketing at Rambus.
At present, XDR memory is used inside Sony PlayStation 3 computer entertainment system, certain DLP projectors, Teradici PC-over-IP computing systems, Toshiba's Qosmio laptop PCs with SpursEngine processors inside as well as Toshiba’s HDTVs featuring SpursEngine chip. Now that Qimonda has stopped production, Elpida Memory and Samsung Electronics are the only suppliers of XDR.
Sony Computer Entertainment has so far shipped around 23 million, or slightly more, PlayStation 3 game systems, each of which features four 512Mb XDR memory chips, or 256MB of XDR memory in total. Therefore, 92 million XDR chips, the vast majority of the supplied amount, have been installed into the PS3. Other consumer electronics and computing applications consumed considerably less amount of XDR DRAM.
XDR DRAM can operate at 3.20GHz to 6.40GHz clock-speeds.
Tags: Rambus, Samsung, XDR
Comments currently: 3
Discussion started: 12/06/09 01:54:55 PM
Latest comment: 12/09/09 07:38:31 PM
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I wonder why the heck didn't XDR caught on the desktop PC market ... ?
12/06/09 01:54:55 PM]
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They have a long history with the PC market.
Years ago Rambus tried holding Intel into a contract that assured Rambus to be the only ram technology that Intel's desktop chipsets support.
The market didn't like this and prefered to stay with SDRAM. And so VIA was the biggest winner of this situation when they offered the quite successful Apollo 133 chipset, which offered full support to Intel's 133MHz FSBUS CPU with SDRAM.
At that time, Rambus also tried charging royalties for supposed patents they had for SDRAM and DDR. The market really disliked this artificial price rise because of this, and a legal war started. Eventually Rambus lost the legal battle, and they disappeared from the PC market.
12/06/09 02:29:00 PM]
Because processor used in PCs aren't designed in that fashion to use ptp memory like Rambus and they're not lack of anything (in fact CPUs are quite happy) with DDR2/3/4. Not even those ones who artificially try to claim their superiority when using Rambus ... Intel in times when they releasing i810/i850 chipsets. AMD saw their production path by introduced DDR which Athlons FSB natively supported, and VIA stayed with SDRAM and with VIA Apollo chipsets claimed big market win over intel in P3 times. So intel sue ViA to cut their throat cause they're in the mud over their chest.
After that when intel saw that no one is buying their false marketing around Rambus they quickly adopted legacy SDRAM for their i815 P3 chipsets and even produce some underperforming P4 chipsets (QPB) that support only single channel SDRAM ... Rambus in that time use 16bit link width to memory controller (inside chipset) so you need to use 4 modules to saturate 64bit needs and already existed controller in i850 wasnt much improved from thta basic 64bit width in i820 iirc incarnation (P4 SDRAM)
For performance hit removal from Intels P4 desktop chipsets we need to wait i865/i875P chipset that introduced DC memory with DDR-333 and DDR-400 native speeds over poor but good patch i845 that support only Single Channel DDR-266 (and above only by OCing) and lacked of PCI bus lock that was first introduced by nvidias nForce2 for AMD and intel follow that OC trend in i865/i875P chipset
And Rambus wasn't firm that could push Intel into some unfair signed agreements. They just try to tell the world how they invented signal multiplexing ... right. And now they wanna tell us how they invented frequency with their memory chps working at stunning 6.4GHz
12/09/09 07:38:31 PM]
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