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IDT R4600
  IDT 79R4600-100G
  IDT 79R4600-133G
  IDT 79R4600-133G 'Orion'
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The IDT R4600 Processor
The IDT R4600 'Orion' was designed by Quantum Effect Devices (QED), a company started by former MIPS employees. R4600 processors where used in Silicon Graphics Indy workstations and are still used in Cisco series 4000 routers.
 
References:  MIPS R4600 Product Information  IDT 79R4700 Documents  R4600 at SGIstuff
IDT 79R4600-100G
IDT 79R4600-100G Top Side
IDT
79R4600
-100G
9420C R17
IDT 79R4600-100G Back Side
JV6386
MALAY Di
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Core Frequency:100 MHz
Board Frequency:50 MHz
Clock Multiplier:2.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,200,000
Introduced:1994
Manufactured:week 20/1994
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:512 KB
CPU Code:Orion
Package Type:Ceramic
Goldcap
PGA-179
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IDT 79R4600-133G
IDT 79R4600-133G Top Side
IDT
79R4600
-133G
YA9504C
IDT 79R4600-133G Back Side
JG9670
USA EA
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Core Frequency:133 MHz
Board Frequency:66 MHz
Clock Multiplier:2.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Introduced:1994
Manufactured:week 04/1995
Made in:USA
L1 Cache:16+16 KB
L2 Cache:512 KB
CPU Code:Orion
Package Type:Ceramic
Goldcap
PGA-179
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IDT 79R4600-133G 'Orion'
IDT 79R4600-133G 'Orion' Top Side
ORION
IDT
79R4600
-133G
YA9531C
IDT 79R4600-133G 'Orion' Back Side
JV9631
MALAY EL
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Core Frequency:133 MHz
Board Frequency:66 MHz
Clock Multiplier:2.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,200,000
Introduced:1994
Manufactured:week 31/1994
Made in:Malaysia
L1 Cache:16+16 KB
L2 Cache:512 KB
CPU Code:Orion
Package Type:Ceramic
Goldcap
PGA-179
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