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NEC MIPS Rx000
  NEC D30310R-33 VR3000A-33
  NEC D30311R-33 VR3010A-33
  NEC D30311R-40 VR3010A-40
  NEC D30401RJ-50 VR4000SC-50
  NEC D30200GD-100 VR4300
  NEC D30412RJ-50 VR4400MC
  NEC D30412RJ-75 VR4400MC
  NEC D30412LRJ-200 VR4400MC
  NEC D30412LRJ-250 VR4400MC
  NEC D30500RJ-180 VR5000
  NEC D30700RS-180 VR10000
  NEC D30700LRS-250 VR10000
  NEC D30710RS-300 VR12000
» NEC overview
» all MIPS Rx000 chips
 
The NEC VR3000 / MIPS R3000 Processor
The first commercial MIPS CPU model, the R2000, was announced in 1985 as a 32-bit implementation. It was followed by the R3000, the first successful MIPS design in the marketplace with more than 1 million processors made. The R3000 was used in high-end UNIX computers by Siemens and DEC and in the Silicon Graphics SGI Personal IRIS 4D/20 graphic workstations. On this machines 3D sequences for movies like The Abyss, Jurrasic Park or Terminator 2 were rendered.
 
The R3000 has an interface to handle 3 coprocessors. Each coprocessor has a flag line connected with the CPU that can be tested and a conditional branch executed dependent on its value. Coprocessor instructions can be executed directly from the instruction stream.
Coprocessor 0 (CP0) is incorporated on the CPU chip and supports the virtual memory system and exception handling. It is also referred to as the System Control Coprocessor. CP1 is reserved for the floating point coprocessor. An FPU is mandatory for most R3000 systems. CP2 is available for specific implementations and is often used to accelerate memory access by connecting it to an R3020 memory buffer or an R3220 read/write buffer chip. Later versions of the R3000 (R3000A) had built in memory buffer circuitry.
 
Reference:  R3000 at SGIstuff  R3000 information (German)
NEC D30310R-33 VR3000A-33
NEC D30310R-33 VR3000A-33 Top Side
NEC JAPAN
D30310R-33
VR3000A-33
9210E9 CPU
NEC D30310R-33 VR3000A-33 Back Side
A MIPS R3000 CPU, manufactured by MIPS licensee NEC.
 
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:110,000
Circuit Size:1.20
Introduced:1991
Manufactured:week 10/1992
Made in:Japan
Package Type:Ceramic
Goldcap
PGA-145
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The MIPS R3010 FPU
The R3010 is the FPU for the MIPS R3000 CPU. It provides high-speed floating point capability for systems based on the R3000 CPU. The organization of the FPU architecture is similar to that of the R3000 CPU, and allows for optimization of both integer and floating-point performance.
 
The R3010 FPU connects seamlessly to the R3000 CPU via the R3000 coprocessor interface CP1, and since both units receive instructions in parallel, floating-point instructions can be initiated at the same single cycle rate as fixed-point instructions.
NEC D30311R-33 VR3010A-33
NEC D30311R-33 VR3010A-33 Top Side
NEC JAPAN
D30311R-33
VR3010A-33
9209P9 FPU
NEC D30311R-33 VR3010A-33 Back Side
This is an R3010 FPU for the MIPS R3000 CPU from my Silicon Graphics SGI Iris Indigo graphic workstation.
 
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Core Frequency:33 MHz
Board Frequency:33 MHz
Introduced:1991
Manufactured:week 09/1992
Made in:Japan
Package Type:Ceramic
PGA-84
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NEC D30311R-40 VR3010A-40
NEC D30311R-40 VR3010A-40 Top Side
NEC JAPAN
D30311R-40
VR3010A-40
9150P9 FPU
NEC D30311R-40 VR3010A-40 Back Side
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Core Frequency:40 MHz
Board Frequency:40 MHz
Introduced:1991
Manufactured:week 50/1991
Made in:Japan
Package Type:Ceramic
PGA-84
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The NEC R4000 Processor
The MIPS R4000 series, released in 1991, extended the MIPS instruction set to a full 64-bit architecture and moved the FPU onto the main die to create a single-chip system. The design was so important to SGI, at the time MIPS' major customer, that SGI bought the company in 1992.
The R4x00 processors have been available and used in different versions. PC (as in R4000PC) denotes primary cache only and SC denotes secondary cache. The MC versions contain special support for cache architectures in multiprocessor systems.
R4000 processors where used in many Silicon Graphics computers, e.g. the Indigo workstations and Crimson servers.
 
References:  MIPS R4000 Microprocessor User's Guide  R4000 at SGIstuff

Note: The last two digits of the part number on older NEC VR4x000 processors is the external clock speed, internal is twice that.
NEC D30401RJ-50 VR4000SC-50
NEC D30401RJ-50 VR4000SC-50 Top Side
NEC JAPAN
D30401RJ-50
VR4000SC-50
9230E9 ES2.2
NEC D30401RJ-50 VR4000SC-50 Back Side
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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:2,300,000
Voltage:5 V
Introduced:1991
Manufactured:week 30/1992
Made in:Japan
L1 Cache:16+16 KB
Package Type:Ceramic
Goldcap
PGA-447
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The NEC R4300 Processor
The R4300, introduced in 1995, is a low-cost but very powerful processor with its external bus reduced to 32 bit. It was used in the Nintendo64 game console, the NeoGeo Hyper 64 arcade machine system and many other devices like set-top boxes, video entertainment systems, arcade games, x-terminals, network hardware and laser printers.
 
References:  Nintendo64 Tech Info
NEC D30200GD-100 VR4300
NEC D30200GD-100 VR4300 Top Side
NEC JAPAN
D30200GD-100
VR4300
9824PK028
NEC D30200GD-100 VR4300 Back Side
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Core Frequency:100 MHz
Board Frequency:67 MHz
Clock Multiplier:1.5
Data bus (ext.):32 Bit
Address bus:64 Bit
Transistors:4,600,000
Circuit Size:0.35
Voltage:3.3 V
Introduced:04/1995
Manufactured:week 24/1998
Made in:Japan
L1 Cache:16+8 KB
Package Type:Plastic
QFP-120
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The NEC R4400 Processor
The MIPS R4000 series, released in 1991, extended the MIPS instruction set to a full 64-bit architecture and moved the FPU onto the main die to create a single-chip system. The design was so important to SGI, at the time MIPS' major customer, that SGI bought the company in 1992.
The R4x00 processors have been available and used in different versions. PC (as in R4000PC) denotes primary cache only and SC denotes secondary cache. The MC versions contain special support for cache architectures in multiprocessor systems.
R4000 processors where used in many Silicon Graphics computers, e.g. the Indigo workstations and Crimson servers.
 
References:  MIPS R4000 Microprocessor User's Guide  R4000 at SGIstuff

Note: The last two digits of the part number on older NEC VR4x000 processors is the external clock speed, internal is twice that.
NEC D30412RJ-50 VR4400MC
NEC D30412RJ-50 VR4400MC Top Side
NEC JAPAN
D30412RJ-50
VR4400MC
9342I9201 ES2.0
NEC D30412RJ-50 VR4400MC Back Side
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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:2,300,000
Voltage:5 V
Introduced:1993
Manufactured:week 42/1993
Made in:Japan
L1 Cache:16+16 KB
Package Type:Ceramic
Goldcap
PGA-447
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NEC D30412RJ-75 VR4400MC
NEC D30412RJ-75 VR4400MC Top Side
NEC JAPAN
D30412RJ-75
VR4400MC
9420K9206 2.0
NEC D30412RJ-75 VR4400MC Back Side
Note: The last two digits of the part number on older NEC VR4x000 processors is the external clock speed, internal is twice that.
 
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Core Frequency:150 MHz
Board Frequency:75 MHz
Clock Multiplier:2.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,300,000
Voltage:3.3 V
Introduced:1994
Manufactured:week 20/1994
Made in:Japan
L1 Cache:16+16 KB
Package Type:Ceramic
Goldcap
PGA-447
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NEC D30412LRJ-200 VR4400MC
NEC D30412LRJ-200 VR4400MC Top Side
NEC JAPAN
D30412LRJ-200
VR4400MC
9509I9200ES3.0
NEC D30412LRJ-200 VR4400MC Back Side
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Core Frequency:200 MHz
Board Frequency:50 MHz
Clock Multiplier:4.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,300,000
Voltage:3.3 V
Introduced:05/1994
Manufactured:week 09/1995
Made in:Japan
L1 Cache:16+16 KB
Package Type:Ceramic
Goldcap
PGA-447
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NEC D30412LRJ-250 VR4400MC
NEC D30412LRJ-250 VR4400MC Top Side
NEC JAPAN
D30412LRJ-250
VR4400MC
9609P9204 3.0
NEC D30412LRJ-250 VR4400MC Back Side
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Core Frequency:250 MHz
Board Frequency:75 MHz
Clock Multiplier:3.3
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,300,000
Voltage:3.3 V
Introduced:05/1994
Manufactured:week 09/1996
Made in:Japan
L1 Cache:16+16 KB
Package Type:Ceramic
Goldcap
PGA-447
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The NEC R5000 Processor
The R5000, designed by Quantum Effect Devices (QED), replaced the R4600 in 1996. The R5000 FPU had more flexible single precision floating-point scheduling than the R4x00, and as a result, R5000-based SGI Indys had much better graphics performance than similarly clocked R4400 Indys with the same graphics hardware. SGI gave the old graphics board a new name (XL8 -> XGE8) when it was combined with R5000 in order to emphasize the improvement.
 
References:  MIPS R5000 introduction  MIPS R5000: Fast, Affordable 3-D  IDT 79RV5000 Documents  R5000 at SGIstuff
NEC D30500RJ-180 VR5000
NEC D30500RJ-180 VR5000 Top Side
NEC JAPAN
D30500RJ-180
VR5000
962219002ES1.1
NEC D30500RJ-180 VR5000 Back Side
Donated by Maksym Marchenko. Thanks a lot!  
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Core Frequency:180 MHz
Board Frequency:60 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:3,700,000
Circuit Size:0.32
Core / I/O Voltage:3.3 / 3.6 V
Introduced:04/1996
Manufactured:week 22/1996
Made in:JAPAN
L1 Cache:32+32 KB
Package Type:Ceramic
Goldcap
PGA-223
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The NEC / MIPS R10000 Processor
The R10000 'T5' is the first single-chip 4-issue superscalar processor by MIPS, introduced in 1995. It gave a 70 to 100% performance increase over the R4400 at 250 MHz, previously the most powerful MIPS processor. The R10000 CPU was used in NEC supercomputers and various SGI machines like the Indigo2, O2, Octane, Octane 2, Onyx, Onyx 2, Origin and Challenge.
 
References:  R10000 User Guide  R10000 at SGIstuff  MIPS R10000 announcement  NEC VR10000 announcement  T5: Brute Force (BYTE.com)
NEC D30700RS-180 VR10000
NEC D30700RS-180 VR10000 Top Side
NEC JAPAN
D30700RS-180
VR10000
9710P9005 ES2.7
NEC D30700RS-180 VR10000 Back Side
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Core Frequency:180 MHz
Board Frequency:60 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:6,800,000
Circuit Size:0.35
Introduced:1995
Manufactured:week 10/1997
Made in:Japan
L1 Cache:32+32 KB
L2 Cache:8 MB ext.
CPU Code:T5
Package Type:Ceramic
Goldcap
LGA-599
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NEC D30700LRS-250 VR10000
NEC D30700LRS-250 VR10000 Top Side
NEC JAPAN
D30700LRS-250
VR10000
9811K9014 ES3.4
NEC D30700LRS-250 VR10000 Back Side
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Core Frequency:250 MHz
Board Frequency:100 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:6,800,000
Circuit Size:0.35
Introduced:1996
Manufactured:week 11/1998
Made in:Japan
L1 Cache:32+32 KB
L2 Cache:8 MB ext.
CPU Code:T5
Package Type:Ceramic
Goldcap
LGA-599
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The NEC / MIPS R12000 Processor
The R12000, released in 1998, is an enhanced R10000 and used an improved process to shrink the chip and run it at higher clock rates. It was used in NEC supercomputers and several SGI machines like the O2, Octane 2, Onyx 2 and later Origin.
 
References:  RISC Fights Back with the MIPS R12000  R12000 at SGIstuff  NEC VR12000 launch
NEC D30710RS-300 VR12000
NEC D30710RS-300 VR12000 Top Side
NEC JAPAN
D30710RS-300
VR12000
9926E9959R2.3
NEC D30710RS-300 VR12000 Back Side
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Core Frequency:300 MHz
Board Frequency:100 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:6,900,000
Circuit Size:0.25
Introduced:11/1998
Manufactured:week 26/1999
Made in:Japan
L1 Cache:32+32 KB
L2 Cache:8 MB ext.
Package Type:Ceramic
Goldcap
LGA-599
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