UltraSPARC
Developer	Sun Microsystems
Manufacturer	Texas Instruments
Type	Microprocessor
Introduction	1994 (announced) October 2, 1995 (launch)
Architecture	64-bit high-performance SPARC processors
ISA	SPARC V9
µarch	UltraSPARC
Word size	64 bit 8 octets 16 nibbles
Process	0.5 µm 500 nm 5.0e-4 mm , 0.35 µm 350 nm 3.5e-4 mm , 0.25 µm 250 nm 2.5e-4 mm , 0.18 µm 180 nm 1.8e-4 mm , 0.13 µm 130 nm 1.3e-4 mm
Technology	CMOS
Succession
←	→
SuperSPARC	SPARC

UltraSPARC was a family of 64-bit SPARC microprocessors designed by Sun Microsystems as a successor to SuperSPARC. Initial launched in late 1995, the UltraSPARC family was Sun's first series of processors based on the then-new 64-bit SPARC V9 architecture.

Members

UltraSPARC-I

Introduced on October 2 1995, the UltraSPARC-I were Sun's first set of 64-bit microprocessors based on the SPARC V9 architecture. Fabricated on Texas Instruments's 0.5 micron EPIC3 QLM process.

UltraSPARC-I

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UltraSPARC-II

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UltraSPARC-III

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