ATI, graphics products group of Advanced Micro Devices, has finally published specifications of the Mobility Radeon X1900, a chip which has been unveiled by such producers of high-end gaming systems as Alienware and Fujitsu-Siemens. Apparently, the chip is a special version of the Radeon X1950 Pro, code-named RV570.
Mobility Radeon X1900 is made using 80nm process technology of Taiwan Semiconductor Manufacturing Corp., has 36 pixel shader processors, 8 vertex shader processors, 256-bit memory interface and PCI Express x16 bus interface. The chip fully supports DirectX 9.0 shader model 3.0, Avivo and PowerPlay 6.0 technologies.
AMD does not disclose clock-speeds for the Mobility Radeon X1900 claiming that they depend on actual notebook's implementation. Power consumption of fully-fledged Radeon X1950 Pro graphics card is around 65W, about two times higher compared to modern mobile central processing units. Power and thermal envelopes of the Mobility Radeon X1900 are unclear.
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News source: Xbit Labs
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