NVidia rolls out new notebook graphics

Graphics chip leader NVidia has introduced two new GPUs aimed at its core notebook market. The GeForce Go 7900 GTX GPU, dubbed the new ‘flagship’ chip offers XHD graphics performance whereas the GeForce Go 7900 GS GPU is said by the company to be targeted at gamers with ‘slimmer’ notebooks.

‘At XHD screen resolutions of 1680×1050 and 1920×1200, games have up to 65 per cent more image detail than games viewed on common 1024×768 notebook screens,’ said Jeff Fisher, Senior Vice President of the GPU Business at NVidia. However, this does mean that the notebook will need to be fitted with a higher resolution, and thus more expensive, LCD screen.

Naturally enough the two new designs offer support for DirectX 9.0, Shader Model 3.0, IntelliSample 4.0 supersampling and H.264 hardware accelerated support via Nvidia PureVideo. They also support the company’s PowerMizer power management technology that appeared in the previous generation of NVidia mobile GPUs.

NVidia says that the new designs also offer a high performance 3D architecture especially built for Microsoft Windows Vista, although of course no one outside the beta test community will see how good it is until November at the earliest.

Clocking in at 600MHz and 500MHz respectively, the 7900 GTX has a fill rate of 12bn pixels per second and is able to process 1bn vertices per second with a bandwidth of 38.4Gb per second. Meanwhile, the 7900 GS is said to deliver a 7.5bn pixels per second fill rate and a 656m vertices per second with a memory bandwidth of 32Gb per second.

A number of manufacturers have already announced machines featuring the new chips. These include the likes of Dell and Toshiba who are shipping them now, and with notebooks from AJP, Evesham, ABS, Gateway and VooDoo PC coming ‘soon’.

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