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The first, Windows XP 64-Bit Edition, was intended for IA-64 systems; as IA-64 usage declined on workstations in favor of AMD's x86-64 architecture, the Itanium edition was discontinued in January 2005. [57] A new 64-bit edition supporting the x86-64 architecture, called Windows XP Professional x64 Edition, was released in April 2005. [58]
The Dreamcast measures 190 mm × 195.8 mm × 75.5 mm (7.48 in × 7.71 in × 2.97 in) and weighs 1.5 kg (3.3 lb). [37] Its main CPU is a two-way 360 MIPS superscalar Hitachi SH-4 32-bit RISC , [ 31 ] [ 142 ] clocked at 200 MHz with an 8 kB instruction cache and 16 kB data cache and a 128-bit graphics-oriented floating-point unit delivering 1.4 ...