G4

G4 is the name of:

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• PowerPC G4 ? a type of microprocessor used by Apple Computer.
• G4 (TV channel) ? a gaming-oriented TV channel.
• G4 (band) ? a pop group on the ITV television programme The X Factor.

G4 may also refer to:

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• Gulfstream G400 and G450 ? private jets.
• G4 star ? a subclass of G-class stars.
• Group 4 of the periodic table.
• G4 nations ? four major nations seeking seats on the UN Security Council: Germany, Brazil, Japan, and India.
• G4 bloc ? China, India, Brazil, and South Africa—the core leadership of the larger G20 trade bloc within the World Trade Organization.
• Santa Clara County Route G4 ? a county highway in Santa Clara County, California, USA.