In advance of Ultra 1’s official debut this week, Sun Microsystems Inc is wringing every last drop out of its existing workstation lines, adding 150MHz HyperSparc-based models to its high-end Sparcstation 20 series and cutting tags on others. With the new machines, Sun appears to have dropped the HS prefix previously used to distinguish Ross Technology Inc HyperSparc RISC-based units from those using its own SuperSparc II CPU. Significantly there’s also no sign of the 85MHz SuperSparc II, recently introduced in its commercial server lines, making it onto the desktop. The new SparcStation 20 TurboGXModel 151, designed for engineering and design applications, is rated at 169 SPECint92 and 208 SPECfp92 and starts at $19,000 with 32Mb RAM, 1Gb disk and 20 screen. Without the Turbo graphics, but including 2Gb disk, the price is $17,500. The two-way Model 152MP with 64Mb RAM, 1Gb disk, four Sbus slots and 20 screen starts at $25,500 – $28,800 with two 2Gb drives. Server versions of both are available – uniprocessors run Solaris 1.1.2 or 2.4, the symmetric multiprocessing units only Solaris 2.4. Sun has cut prices on its 75MHz SuperSparc II-based SparcStation 10 Model 71 with a 20 screen to $17,000 from $19,800. The two-way 712MP is down to $21,500 from $25,300, the 125MHz HyperSparc-based HS21 is down by $2,000 to $17,000 and the HS22MP falls to $21,500 from $24,500.