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ATI 'to ship R420 as Radeon X800'

Debuts on 26 April, apparently

ATI will ship its much-anticipated R420 chip later this month as the Radeon X800 Pro. The part's 26 April debut will be followed a month later by the Radeon X800 XT on 31 May.

So claims Anandtech, citing unnamed vendor sources and a glance at ATI's roadmap.

If the date is accurate, it puts ATI just 13 days behind Nvidia's NV40 launch on 13 April. NV40 will surface as the GeForce 6800 and is likely to form the basis for other series 6000 GeForce parts. Note the lack of the 'FX' branding - Nvidia has dropped it, Anandtech claims.

The X800 Pro will ship with 256MB of GDDR 3 graphics RAM across a 256-bit memory bus, but a revised version with 512MB of memory is expected later this year. The report also forecasts the arrival of an X800 SE, which supports 128MB of vanilla DDR SDRAM.

The R420 is an AGP 8x part - the native PCI Express version, the R423, will launch on 14 June, the report claims. It too will be offered as the Radeon X800. Both versions are expected to clock at around 500MHz with 1GHz memory clock frequencies. They feature eight-stage pipelines with six vertex shaders.

Expect to see Radeon X600 and X300 products in due course, we're told, as the RV380 and RV370 parts come on stream. These represent ATI's first 110nm parts.

Meanwhile, ATI's Radeon 9100 IGP is due for an update, apparently, in a few months' time. The revision, codenamed 'RS350', will support Intel's LGA775 CPU interface.

Further down the line, late in Q3, ATI will offer three new Pentium 4 chipsets, currently dubbed the RS400, RC400 and RU400. The first provides PCI Express graphics and non-graphics add-in card buses, along with a dual-channel memory controller. The other two will offer single-channel memory support, while the latter will not support external graphics cards.

AMD isn't being left out, courtesy of RS480 and RX480 chipsets, the first with integrated graphics the second without it. ®

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