backtop


Print 32 comment(s) - last by rushfan2006.. on Jul 3 at 9:51 AM


HIS X1600 Gemini Courtesy of HKEPC
Single-board dual RV570 boards in the pipeline

ATI’s upcoming RV560 and RV570 will find its way into single-board, dual-GPU CrossFire configurations. Since the GPU cores have integrated composite engines, the cards are capable of Crossfire support directly on the card. 

ATI is recommending to its AIB partners that the new 80nm mainstream and value parts will be joined together on a single PCB with a PLX Technology ExpressLane PEX 8532 PCI Express bridge chip. This bridge chip is currently used on ATI Gemini graphics cards such as the GeCube dual X1600 graphics card. The bridge chip itself is nearly the same size as the GPU but only draws approximately 7.38 watts. Preliminary boards show the PEX 8532 heatsink-less which isn’t surprising considering its low power draw.

On Gemini graphics boards the PEX 8532 bridge chip (PDF) takes one PCI Express x16 interface and divides the bandwidth in half. This allocates eight PCI Express lanes to each GPU similar to how some motherboards divide sixteen PCI Express lanes across two slots on Intel, lower end SLI and CrossFire motherboards. As the PEX 8532 is a generic PCI Express switch it can be used for other implementations besides graphics switching also.

DailyTech has learned Hightech Information Systems (HIS) has dual RV570 products in the pipeline using the PEX 8352 bridge chip. Although RV570 won’t necessarily offer as much horsepower as a Radeon X1900XT, Gemini variants will be able to dedicate one RV570 GPU to physics processing; essentially one GPU can be used for graphics while the second can be used for physics or graphics.  Additionally, up to four DVI outputs can be used per card with the help of twin DMS59 interfaces

ATI’s 80nm RV560 and RV570 are expected to arrive in August and September.


Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Whats with the brige chip
By Master Kenobi (blog) on 6/26/2006 9:08:26 AM , Rating: 2
Not too much really. The amount of bandwidth graphics cards use of the x16 is not that much really. They have a lot of unused space on the lanes, which is good because that gives the cards room to grow before we have to replace it with x32 slots or something heh........


RE: Whats with the brige chip
By Lonyo on 6/26/2006 9:23:26 AM , Rating: 2
Plus they are mid range cards, so they would need lass bandwidth than a high end card anyway.


"What would I do? I'd shut it down and give the money back to the shareholders." -- Michael Dell, after being asked what to do with Apple Computer in 1997

Related Articles
ATI: 80nm ASIC Production OK
June 16, 2006, 9:50 AM
ATI GPU 2006 Roadmap
June 6, 2006, 3:20 PM
Forget DVI, DMS59 Is Back Again
February 27, 2006, 4:30 AM













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki