Driven by ATi R580+, ATi Radeon X1950XTX is the next trump card from ATi. Its model code and PCB version are 215BAABKA31FG and 102-A91501-00 respectively. Same as R580, it has 16 Pixel Shader pinelines, 48 Pixel Shader processors, and 8 Vertex Shader engine. Features at GDDR4 memory, it’s equipped with 512MB 2GHz DDR. Sources indicated that ATi Radeon X1950 Crossfire is releasing on the same date with XTX version. Similar to the XTX version, the PCB version of the CrossFire version is 102-A98801-00. Both of them are available in late Aug. the final version of ATi Radeon X1950XTX is shown as below, the design of heat sink is a little bit different from those widely spread previously.
Radeon X1950XTX is the replacement of the old king, Radeon X1900XTX, and targeted on nVidia Geforce 7900GTX 512MB. The price of the CrossFire version the same as XTX and is set at $399 to $499.
Samsung and Hynix are producing GDDR4 for manufactures using cutting-edge technologies called DBI (Data Bus Inversion) and Multi-Preamble, enable it to 56% faster than the top model of GDDR3. It’s expected that GDDR4 is going to replace GDDR3 in performance level in the upper half of 2007. The fastest record of GDDR4 is made by Hynix -0.7ns 16M x 32 512Mb GDDR4. It’s able to work in 2.9GHz with 11.6 Gb/s. Hynix plans to release a faster version of GDDR4 with 14.4Gb/s in the end of 2006.
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