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| tech              = CMOS
 
| tech              = CMOS
 
| clock min        = 75 MHz
 
| clock min        = 75 MHz
−
| clock max        = 133 MHz
+
| clock max        = 116.66 MHz
 
| package          = SPGA-296
 
| package          = SPGA-296
 
| package 2        =  
 
| package 2        =  
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== Overview ==
 
== Overview ==
−
K5 was a result of desperation and frustration with cloning and second-sourcing [[Intel]]-based [[x86]] microprocessors. Rumors for the development of K5 dates back to mid-[[1993]], however it was only officially announced in late [[1994]] with the goal of releasing the first batch of chips in in [[1995]]. K5, which stands for [[wikipedia:Kryptonite|Kryptonite]] 5, which as its name implied was an ambitious attempt by AMD to take on Intel (being [[wikipedia:Superman|Superman]], metaphorically). The design suffered significant delays first due to early design problems and later due to problems with various [[x86]] incompatibilities. The first few models were finally released in March of [[1996]].  
+
K5 was a result of desperation and frustration with cloning and second-sourcing [[Intel]]-based [[x86]] microprocessors. Rumors for the development of K5 dates back to mid-[[1993]], however it was only officially announced in late [[1994]] with the goal of releasing the first batch of chips in in [[1995]]. K5, which stands for [[wikipedia:Kryptonite|Kryptonite]] 5, which as its name implied was an ambitious attempt by AMD to take on Intel (being [[wikipedia:Superman|Superman]], metaphorically). The design suffered significant delays first due to early design problems and later due to problems with various [[x86]] incompatibilities. The first few models, using SSA/5, were finally released in March of [[1996]].  
  
 
The first version of {{amd|microarchitectures/k5|K5 Microarchitecture}} introduced, '''SSA/5''', had many technical improvements over Intel's {{intel|Pentium}}, making it well ahead of its time. It had an instruction translator that converted [[CISC]] instructions into simpler [[RISC]] instructions. Due to numerous manufacturing issues and design choices, K5 failed to deliver the expected performance it should have.
 
The first version of {{amd|microarchitectures/k5|K5 Microarchitecture}} introduced, '''SSA/5''', had many technical improvements over Intel's {{intel|Pentium}}, making it well ahead of its time. It had an instruction translator that converted [[CISC]] instructions into simpler [[RISC]] instructions. Due to numerous manufacturing issues and design choices, K5 failed to deliver the expected performance it should have.
  
 
AMD went back and readdressed some of the deficiencies the SSA/5 design had. AMD introduced the new version of K5, named '''5k86''', in October of 1996. AMD had reworked the way memory gets accessed and flows through, from [[L1$]] to [[L2$]] and main. The results is upward of 35% performance improvements across the board. 5k86's performance outmatched Pentium's with lower clock speed.
 
AMD went back and readdressed some of the deficiencies the SSA/5 design had. AMD introduced the new version of K5, named '''5k86''', in October of 1996. AMD had reworked the way memory gets accessed and flows through, from [[L1$]] to [[L2$]] and main. The results is upward of 35% performance improvements across the board. 5k86's performance outmatched Pentium's with lower clock speed.
 +
 
== Architecture ==
 
== Architecture ==
 
{{main|amd/microarchitectures/k5|l1=K5 Microarchitecture}}
 
{{main|amd/microarchitectures/k5|l1=K5 Microarchitecture}}
 
{{empty section}}
 
{{empty section}}
 +
=== Developers ===
 +
* Mike Johnson, Chief Architect
 +
 +
== Die Shot ==
 +
=== {{\|AMD-K5-PR75ABR}} ===
 +
[[File:AMD K5 PR75 die.JPG|650px]]
 +
 +
=== {{\|AMD-K5-PR150ABR}} ===
 +
[[File:AMD K5 die.JPG|650px]]
  
 
== Members ==
 
== Members ==
Line 111: Line 121:
 
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K5]][[core name::5k86]]}}
 
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K5]][[core name::5k86]]}}
 
</table>
 
</table>
 +
 +
== Documents ==
 +
=== DataSheet ===
 +
* [[:File:AMD-K5 Processor Data Sheet (January 1997).pdf|AMD K5 Processor Data Sheet]]; Publication #18522 Revision F/0; January 1997
 +
* [[:File:AMD-K5 Processor Technical Reference Manual (March 1996).pdf|AMD5<sub>k</sub>86 Processor Technical Reference Manual]]; Publication #18524 Revision B/0; March 1996
 +
* [[:File:AMD-K5 Processor Technical Reference Manual (November 1996).pdf|AMD-K5 Processor Technical Reference Manual]]; Publication #18524 Revision C/0; November 1996
 +
=== Thermal & Clock ===
 +
* [[:File:Clock Gating Recommendations (Am486, Am5x86, K5) (August 1995).pdf|Clock Gating Recommendations]]; Publication #19195 Revision C/0; August 1995
 +
* [[:File:CPU Thermal Management (Am486, Am5x86, K5) (August 1995).pdf|CPU Thermal Management]]; Publication #18448 Revision D/0; August 1995.
 +
* [[:File:Low Voltage Power Supply Circuits (Am486, Am5x86, K5) (August 1995).pdf|Low Voltage Power Supply Circuits]]; Publication #19197 Revision D/0; August 1995.
 +
* [[:File:Phase Lock Loop (PLL) Clock Control (Am486, Am5x86, K5) (August 1995).pdf|Phase Lock Loop (PLL) Clock Control]]; Publication #18495 Revision D/0; August 1995.
 +
=== Other ===
 +
* [[:File:AMD-AMD-K5 PROCESSOR Software Development Guide (September 1996).pdf|AMD K5 PROCESSOR Software Development Guide]]; Publication #20007 Revision D/0; September 1996
 +
=== PR ===
 +
* [[:File:AMD-K5 Processor Performance Brief (June, 1996).pdf|AMD-K5 Processor Performance Brief]]; Publication #20084 Revision B/0; June, 1996.
 +
 +
== See also ==
 +
* {{amd|K6}}
 +
* {{intel|pentium (1992)|Pentium}}
 +
* {{intel|Pentium Pro}}

Latest revision as of 21:19, 17 June 2022

AMD K5
KL AMD K5 PR200.jpg
K5-200
Developer AMD
Manufacturer AMD
Type Microprocessors
Introduction October 24, 1994 (announced)
March 27, 1996 (launch)
Production 1996
Architecture Pentium-compatible superscalar microprocessors
ISA IA-32
µarch K5
Word size 32 bit
4 octets
8 nibbles
Process 500 nm
0.5 μm
5.0e-4 mm
, 350 nm
0.35 μm
3.5e-4 mm
Technology CMOS
Clock 75 MHz-116.66 MHz
Package SPGA-296
Socket Socket 5, Socket 7
Succession
← →
Am5x86 K6

K5 was a family of microprocessors designed by AMD and introduced in 1996. K5 models directly rivaled Intel's Pentium processors. These processors were based on AMD's K5 Microarchitecture which was their first x86 microarchitecture to be designed in-house from the ground up without licensing or reverse-engineering Intel's architectures.

Overview[edit]

K5 was a result of desperation and frustration with cloning and second-sourcing Intel-based x86 microprocessors. Rumors for the development of K5 dates back to mid-1993, however it was only officially announced in late 1994 with the goal of releasing the first batch of chips in in 1995. K5, which stands for Kryptonite 5, which as its name implied was an ambitious attempt by AMD to take on Intel (being Superman, metaphorically). The design suffered significant delays first due to early design problems and later due to problems with various x86 incompatibilities. The first few models, using SSA/5, were finally released in March of 1996.

The first version of K5 Microarchitecture introduced, SSA/5, had many technical improvements over Intel's Pentium, making it well ahead of its time. It had an instruction translator that converted CISC instructions into simpler RISC instructions. Due to numerous manufacturing issues and design choices, K5 failed to deliver the expected performance it should have.

AMD went back and readdressed some of the deficiencies the SSA/5 design had. AMD introduced the new version of K5, named 5k86, in October of 1996. AMD had reworked the way memory gets accessed and flows through, from L1$ to L2$ and main. The results is upward of 35% performance improvements across the board. 5k86's performance outmatched Pentium's with lower clock speed.

Architecture[edit]

Main article: K5 Microarchitecture
New text document.svg This section is empty; you can help add the missing info by editing this page.

Developers[edit]

  • Mike Johnson, Chief Architect

Die Shot[edit]

AMD-K5-PR75ABR[edit]

AMD K5 PR75 die.JPG

AMD-K5-PR150ABR[edit]

AMD K5 die.JPG

Members[edit]

AMD initially released SSA/5-based models, but they suffered great performance issues. AMD revised the microarchitecture, releasing 5k86-based models which out-performed Intel's Pentium clock for clock and were thus clocked at lower than the advertised Pentium Performance rating they were given.

SSA/5-based models[edit]

,,,,,
SSA/5-based Processors
ModelLaunchedProcessFreqMult.BusMax MemVCOREPackageMin TcaseMax Tcase
AMD-K5-PR100ABQ17 June 1996350 nm
0.35 μm
3.5e-4 mm
99.99 MHz
0.1 GHz
99,990 kHz
1.566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
AMD-K5-PR100ABR17 June 1996350 nm
0.35 μm
3.5e-4 mm
99.99 MHz
0.1 GHz
99,990 kHz
1.566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR75ABR7 October 1996350 nm
0.35 μm
3.5e-4 mm
75 MHz
0.075 GHz
75,000 kHz
1.550 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR90ABQ7 October 1996350 nm
0.35 μm
3.5e-4 mm
90 MHz
0.09 GHz
90,000 kHz
1.560 MHz
0.06 GHz
60,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
AMD-SSA/5-75ABR27 March 1996500 nm
0.5 μm
5.0e-4 mm
75 MHz
0.075 GHz
75,000 kHz
1.550 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-SSA/5-90ABQ27 March 1996500 nm
0.5 μm
5.0e-4 mm
90 MHz
0.09 GHz
90,000 kHz
1.560 MHz
0.06 GHz
60,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
Count: 6

5k86-based models[edit]

,,,,,,,,
5k86-based Processors
ModelLaunchedProcessFreqMult.BusMax MemVCOREPackageMin TcaseMax Tcase
AMD-K5-PR120ABQ7 October 1996350 nm
0.35 μm
3.5e-4 mm
90 MHz
0.09 GHz
90,000 kHz
1.560 MHz
0.06 GHz
60,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
AMD-K5-PR120ABR7 October 1996350 nm
0.35 μm
3.5e-4 mm
90 MHz
0.09 GHz
90,000 kHz
1.560 MHz
0.06 GHz
60,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR133ABQ7 October 1996350 nm
0.35 μm
3.5e-4 mm
99.99 MHz
0.1 GHz
99,990 kHz
1.566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
AMD-K5-PR133ABR7 October 1996350 nm
0.35 μm
3.5e-4 mm
99.99 MHz
0.1 GHz
99,990 kHz
1.566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR150ABR6 January 1997350 nm
0.35 μm
3.5e-4 mm
105 MHz
0.105 GHz
105,000 kHz
1.7560 MHz
0.06 GHz
60,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR166ABQ6 January 1997350 nm
0.35 μm
3.5e-4 mm
116.66 MHz
0.117 GHz
116,660 kHz
1.7566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
60 °C
333.15 K
140 °F
599.67 °R
AMD-K5-PR166ABR6 January 1997350 nm
0.35 μm
3.5e-4 mm
116.66 MHz
0.117 GHz
116,660 kHz
1.7566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
70 °C
343.15 K
158 °F
617.67 °R
AMD-K5-PR166ABX6 January 1997350 nm
0.35 μm
3.5e-4 mm
116.66 MHz
0.117 GHz
116,660 kHz
1.7566.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
65 °C
338.15 K
149 °F
608.67 °R
AMD-K5-PR200ABXApril 1997350 nm
0.35 μm
3.5e-4 mm
133.33 MHz
0.133 GHz
133,330 kHz
266.66 MHz
0.0667 GHz
66,660 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
3.525 V
35.25 dV
352.5 cV
3,525 mV
0 °C
273.15 K
32 °F
491.67 °R
65 °C
338.15 K
149 °F
608.67 °R
Count: 9

Documents[edit]

DataSheet[edit]

Thermal & Clock[edit]

Other[edit]

PR[edit]

See also[edit]

Retrieved from "https://en.wikichip.org/w/index.php?title=amd/k5&oldid=100185"
Facts about "K5 - AMD"
RDF feed
designerAMD +
first announcedOctober 24, 1994 +
first launchedMarch 27, 1996 +
full page nameamd/k5 +
instance ofmicroprocessor family +
instruction set architectureIA-32 +
main designerAMD +
manufacturerAMD +
microarchitectureK5 +
nameAMD K5 +
packageSPGA-296 +
process500 nm (0.5 μm, 5.0e-4 mm) + and 350 nm (0.35 μm, 3.5e-4 mm) +
socketSocket 5 + and Socket 7 +
technologyCMOS +
word size32 bit (4 octets, 8 nibbles) +