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Short-term AMD IGP chipset roadmap

DailyTech has received an AMD roadmap that highlights upcoming Socket AM2 chipsets from ATI and NVIDIA. According to AMD’s June 2006 roadmap ATI has a new discrete graphics solution that should arrive in Q3’06. Currently known as RX690, the new chipset will have one PCI Express x16 graphics slot. RX690 lacks the capability to divide the 16 PCI Express lanes to two PCI Express x8 slots. There’s no mention if CrossFire will be supported with RX690 but it seems very unlikely. Nevertheless the RX690 supports six PCI Express lanes instead of the four lanes supported by current Radeon Xpress 1100/1200, CrossFire Xpress 1600 and CrossFire Xpress 3200 chipsets. RX690 based motherboards will have access to a variety of PCI Express based south bridges including ATI’s SB460 and SB600.

There has been plenty of news regarding ATI’s next generation RS600 integrated graphics core-logic for Intel processors but not much has been published on the AMD variant—RS690. Roadmaps show ATI will offer two RS690 variants to motherboard manufacturers. The plain RS690 will use shared memory architecture and support DirectX9 and SM 2.0 with its Radeon X700 derived graphics core. Other notable features include one PCI Express x16 slot, six additional PCI Express lanes and integrated HDMI with HDCP compatibility. Although AMD K8-based processors have integrated memory controllers that drastically reduce memory access latency, it reduces integrated graphics performance. ATI will have a second RS690 variant that addressed shared video memory latency issues. The RS690T/DC will support a local-frame buffer which is essentially dedicated video memory attached directly to the integrated graphics core, removing shared memory latency issues.

Last on the AMD roadmap is the upcoming NVIDIA MCP61 integrated graphics chipset. The single-chip core-logic will have a GeForce 7 series graphics processor with support for PureVideo. PureVideo acceleration will be limited to standard definition video playback which leads us to believe the MCP61 is the GeForce 6100 successor. The integrated graphics core will also support VGA and HDMI video outputs, though there’s no mention of HDCP compliancy. MCP61 will not have an integrated TV encoder for S-Video, composite and component video outputs. Additional supported features include 10 USB 2.0, four SATA II ports, one Gigabit and high definition audio.

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By Anh Huynh on 7/11/2006 10:16:04 PM , Rating: 2
You don't need two PCI Express x8 slots for CrossFire. Intel's 945P only supports one PCI Express x16 and some boards implement a single PCI Express x16 slot with four lanes. The 945P configuration is supported for CrossFire so there is a chance the RX690 may support CrossFire.

By hwhacker on 7/11/2006 10:30:53 PM , Rating: 2
I heard whispers about UVD/BRD/HDDVD/H.264 avivo functionality in R*690 (as well as R600-based GPUs), is that true?

It's also worth mentioning R*790 is coming Q4-2007/Q1-2008 with HT3 (AM3) support...If that's true.

Would that assumingly make R*790 a DDR3 AMD board, and RS690 ATi's last AMD chipset for over a year, as R*700 would seemingly be the same essential chipset as R*700, with IGP add-ons. I keep hearing whispers that info about R*790 is being passed around with RS690 whitepapers, but not much more than that. That would be some news, as I hadn't heard of any AM3 (DDR3) boards in developement up until I heard that.

By Knish on 7/11/2006 10:47:59 PM , Rating: 2
Yes for the first question.

No idea on the socket for the second question.

By Knish on 7/11/2006 10:48:45 PM , Rating: 2
Sorry, forgot link for the RS690:

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