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K5 - Microarchitectures - AMD
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K5 µarch
General Info
Arch TypeCPU
DesignerAMD
ManufacturerAMD
IntroductionMarch 27, 1996
Phase-out1998
Process500 nm, 350 nm
Instructions
ISAx86-32
Succession

K5 was the microarchitecture for AMD's K5 line of microprocessors as a successor to the 80486. Launched in early 1996, the K5 microarchitecture was AMD's first x86 microarchitecture to be designed in-house from the ground up without licensing or reverse-engineering Intel's architectures. K5 was intended to serve as AMD's baseline for future x86 microarchitectures. K5 was superseded by K6 in 1997.

Architecture[edit]

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Die Shot[edit]

AMD-K5-PR75ABR:

AMD K5 PR75 die.JPG

All K5 Chips[edit]

K5 Chips
ModelCoreLaunchedPower DissipationFreqMax MemP-Rating
AMD-K5-PR100ABQSSA/517 June 199615.8 W
15,800 mW
0.0212 hp
0.0158 kW
99.99 MHz
0.1 GHz
99,990 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P100
AMD-K5-PR120ABQ5k867 October 199612.6 W
12,600 mW
0.0169 hp
0.0126 kW
90 MHz
0.09 GHz
90,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P120
AMD-K5-PR120ABR5k867 October 199612.6 W
12,600 mW
0.0169 hp
0.0126 kW
90 MHz
0.09 GHz
90,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P120
AMD-K5-PR133ABQ5k867 October 199614 W
14,000 mW
0.0188 hp
0.014 kW
99.99 MHz
0.1 GHz
99,990 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P133
AMD-K5-PR133ABR5k867 October 199614 W
14,000 mW
0.0188 hp
0.014 kW
99.99 MHz
0.1 GHz
99,990 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P133
AMD-K5-PR166ABQ5k866 January 199716.4 W
16,400 mW
0.022 hp
0.0164 kW
116.66 MHz
0.117 GHz
116,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P166
AMD-K5-PR166ABX5k866 January 199716.4 W
16,400 mW
0.022 hp
0.0164 kW
116.66 MHz
0.117 GHz
116,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P166
AMD-K5-PR75ABRSSA/57 October 199611.8 W
11,800 mW
0.0158 hp
0.0118 kW
75 MHz
0.075 GHz
75,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P75
AMD-K5-PR90ABQSSA/57 October 199614.3 W
14,300 mW
0.0192 hp
0.0143 kW
90 MHz
0.09 GHz
90,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P90
AMD-SSA/5-90ABQSSA/527 March 199690 MHz
0.09 GHz
90,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
P90
Count: 10

See also[edit]

codenameK5 +
designerAMD +
first launchedMarch 27, 1996 +
full page nameamd/microarchitectures/k5 +
instance ofmicroarchitecture +
instruction set architecturex86-32 +
manufacturerAMD +
microarchitecture typeCPU +
nameK5 +
phase-out1998 +
process500 nm (0.5 μm, 5.0e-4 mm) + and 350 nm (0.35 μm, 3.5e-4 mm) +