cnMIPS - Microarchitectures - Cavium

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	cnMIPS µarch
	General Info

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cnMIPS or cnMIPS64 is the first microarchitecture implementing the MIPS64 ISA designed by Cavium for their Octeon family of processors. The "cn" stands for "Cavium Networks" or "content networking". This microarchitecture was designed with network-related applications (L3 through L7) in mind which resulted in a large selection of hardware accelerators (compression/security) being included.

History

The cnMIPS was Cavium's first microarchitecture developed completely in-house from the ground up. The cnMIPS is also the first implementation of the MIPS64 Release 2 ISA. The design was done by a group of 35 engineers who previously worked on DEC's EV7 based in Marlboro, Massachusetts under the lead of Cavium's CTO Richard Kessler (who was previously the chief architect of the EV7). The fully custom final design proved to be around three to five times faster than the synthesized MIPS64 core.

Codenames

Family	Description
Octeon	Enterprise network services processor (NSP)
Octeon Plus	Second generation (higher clock, bigger cache)

Process Technology

Chips were fabricated by TSMC on their 0.13-micron CMOS process. By 2007 when Cavium released their OCTEON Plus family they've transitioned to TSMC's 90 nm process.

Architecture

cnMIPS is the first implementation of the MIPS64 Release 2 ISA. Cavium's design goals were a target clock speed of around 600 MHz. Being primarily designed for network applications, the FPU was omitted as complex floating point operations are uncommon.

Interfaces

cnMIPS includes a number of additional interfaces:

SPI-4.2 interface
Gigabit Ethernet MAC (RGMII/GMII)
PLL
64-bit 66-133 MHz PCI/PCI-X host/slave controller
USB 2.0
TDM/PCM

There is no HyperTransport interface implemented. Also note the cnMIPS was planned to have a PCI Express interface but was eventually left out due to delays. Cavium did offer a number of bridge chips as a stopgap solution when desired.

With the introduction of the OCTEON Plus family, cavium introduced faster interfaces, including

SGMII
XAUI
PCI Express x4, x8

Special Functional Units

Designed for network-heavy operations, cnMIPS implements an array of security and compression units.

Compression/Decompression
- ZIP engine supporting fixed or dynamic Huffman code compression algorithms, GZIP, PKZIP
Security
- DES
- Triple DES (3DES)
- AES
- Message Digest 5 (MD5)
- Secure Hash Algorithm (SHA-1)
- Diffie-Hellman
- RSA & Rivest Cipher 4 (RC4)
Regular Expression Engine
TCP accelerator
QoS accelerator

Memory Hierarchy

Cache
- L1I Cache:
  - 16-32 KiB 64-way set associative
  - per core
- L1D Cache:
  - 8-16 KiB 8-way set associative
  - Write-through policy
  - per core
- L2 Cache:
  - Up to 1 MiB 8-way set associative
  - 128 B line locking and partitioning
  - shared by all cores
TLB
- 32-entry
MMU
- 2 KiB write buffer

Note that the L2$ is shared across all the cores over a coherent bus operating at the core's native clock frequency of 600 MHz for a theoretical bandwidth of 230 Gb/s. There is a 12-cycle latency between the L1 and L2 caches. The L2 is connected directly to an on-chip SDRAM controller with support for up to 16 GiB of single-channel 64-bit (and 128-bit for 8- and 16-core models) DDR1/DDR2 up to 400 MHz for 5.96 GiB/s (6.4 GB/s) and 11.92 GiB/s (12.8 GB/s) for the 8- and 16- cores.

All cnMIPS Chips

All cnMIPS Microprocessors
CPU									Memory			Hardware Accelerators
Model	Family	Price	Launched	Cores	L1$	L2$	Power	Freq	Mem Type	Max Mem	ECC	Encryption	Compression	RegEx	TCP	QoS
CN3005-300 CP	OCTEON	$ 19.00 € 17.10 £ 15.39 ¥ 1,963.27	1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	2 W 2,000 mW 0.00268 hp 0.002 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✘	✘	✘	✔	✔
CN3005-300 SCP	OCTEON	$ 19.00 € 17.10 £ 15.39 ¥ 1,963.27	1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	2 W 2,000 mW 0.00268 hp 0.002 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✔	✘	✘	✔	✔
CN3005-400 CP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✘	✘	✘	✔	✔
CN3005-400 SCP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✔	✘	✘	✔	✔
CN3005-500 CP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	4 W 4,000 mW 0.00536 hp 0.004 kW	500 MHz 0.5 GHz 500,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✘	✘	✘	✔	✔
CN3005-500 SCP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	64 KiB 0.0625 MiB 65,536 B 6.103516e-5 GiB	4 W 4,000 mW 0.00536 hp 0.004 kW	500 MHz 0.5 GHz 500,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✘	✔	✘	✘	✔	✔
CN3010-300 CP	OCTEON	$ 39.00 € 35.10 £ 31.59 ¥ 4,029.87	1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	2 W 2,000 mW 0.00268 hp 0.002 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✘	✘	✘	✔	✔
CN3010-300 SCP	OCTEON	$ 39.00 € 35.10 £ 31.59 ¥ 4,029.87	1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	2 W 2,000 mW 0.00268 hp 0.002 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✔	✘	✘	✔	✔
CN3010-400 CP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✘	✘	✘	✔	✔
CN3010-400 SCP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✔	✘	✘	✔	✔
CN3010-500 CP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	4 W 4,000 mW 0.00536 hp 0.004 kW	500 MHz 0.5 GHz 500,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✘	✘	✘	✔	✔
CN3010-500 SCP	OCTEON		1 May 2006	1	24 KiB 24,576 B 0.0234 MiB	128 KiB 0.125 MiB 131,072 B 1.220703e-4 GiB	4 W 4,000 mW 0.00536 hp 0.004 kW	500 MHz 0.5 GHz 500,000 kHz	DDR2-533	2,048 MiB 2,097,152 KiB 2,147,483,648 B 2 GiB 0.00195 TiB	✔	✔	✘	✘	✔	✔
CN3110-300 CP	OCTEON	$ 49.00 € 44.10 £ 39.69 ¥ 5,063.17	1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3110-300 EXP	OCTEON	$ 49.00 € 44.10 £ 39.69 ¥ 5,063.17	1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3110-300 NSP	OCTEON	$ 49.00 € 44.10 £ 39.69 ¥ 5,063.17	1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3110-300 SCP	OCTEON	$ 49.00 € 44.10 £ 39.69 ¥ 5,063.17	1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3110-400 CP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3110-400 EXP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3110-400 NSP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3110-400 SCP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3110-500 CP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3110-500 EXP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3110-500 NSP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3110-500 SCP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3110-550 CP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3110-550 EXP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3110-550 NSP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3110-550 SCP	OCTEON		1 May 2006	1	40 KiB 40,960 B 0.0391 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3120-300 CP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3120-300 EXP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3120-300 NSP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3120-300 SCP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	3 W 3,000 mW 0.00402 hp 0.003 kW	300 MHz 0.3 GHz 300,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3120-400 CP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3120-400 EXP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3120-400 NSP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3120-400 SCP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3120-500 CP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3120-500 EXP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3120-500 NSP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3120-500 SCP	OCTEON		1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✘	✘	✔	✔
CN3120-550 CP	OCTEON	$ 125.00 € 112.50 £ 101.25 ¥ 12,916.25	1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✘	✘	✔	✔
CN3120-550 EXP	OCTEON	$ 125.00 € 112.50 £ 101.25 ¥ 12,916.25	1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✘	✔	✔	✔	✔
CN3120-550 NSP	OCTEON	$ 125.00 € 112.50 £ 101.25 ¥ 12,916.25	1 May 2006	2	80 KiB 81,920 B 0.0781 MiB	256 KiB 0.25 MiB 262,144 B 2.441406e-4 GiB	7 W 7,000 mW 0.00939 hp 0.007 kW	550 MHz 0.55 GHz 550,000 kHz	DDR2-667	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	✔	✔	✔	✔	✔	✔
CN3630-400 EXP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB	14 W 14,000 mW 0.0188 hp 0.014 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3630-400 NSP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB	14 W 14,000 mW 0.0188 hp 0.014 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3630-400 SCP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB	14 W 14,000 mW 0.0188 hp 0.014 kW	400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3630-500 EXP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3630-500 NSP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3630-500 SCP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3630-600 EXP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3630-600 NSP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3630-600 SCP	OCTEON		August 2005	4	160 KiB 163,840 B 0.156 MiB	512 KiB 0.5 MiB 524,288 B 4.882812e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3830-400 EXP	OCTEON	$ 350.00 € 315.00 £ 283.50 ¥ 36,165.50	22 August 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3830-400 NSP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3830-400 SCP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3830-500 EXP	OCTEON		22 August 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3830-500 NSP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3830-500 SCP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3830-600 EXP	OCTEON		22 August 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3830-600 NSP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3830-600 SCP	OCTEON		1 June 2005	4	160 KiB 163,840 B 0.156 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3840-400 EXP	OCTEON		22 August 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3840-400 NSP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3840-400 SCP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3840-500 EXP	OCTEON		22 August 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3840-500 NSP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3840-500 SCP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3840-600 EXP	OCTEON		22 August 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3840-600 NSP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3840-600 SCP	OCTEON		1 June 2005	8	320 KiB 327,680 B 0.313 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3850-400 EXP	OCTEON		22 August 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3850-400 NSP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3850-400 SCP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3850-500 EXP	OCTEON		22 August 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3850-500 NSP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3850-500 SCP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3850-600 EXP	OCTEON		22 August 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3850-600 NSP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3850-600 SCP	OCTEON		1 June 2005	12	480 KiB 491,520 B 0.469 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3860-400 EXP	OCTEON	$ 650.00 € 585.00 £ 526.50 ¥ 67,164.50	22 August 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3860-400 NSP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3860-400 SCP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		400 MHz 0.4 GHz 400,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3860-500 EXP	OCTEON		22 August 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3860-500 NSP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3860-500 SCP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		500 MHz 0.5 GHz 500,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN3860-600 EXP	OCTEON		22 August 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✘	✔	✔	✔	✔
CN3860-600 NSP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✔	✔	✔	✔
CN3860-600 SCP	OCTEON		1 June 2005	16	640 KiB 655,360 B 0.625 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800	16,384 MiB 16,777,216 KiB 17,179,869,184 B 16 GiB 0.0156 TiB	✔	✔	✘	✘	✔	✔
CN5734-1000 SP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		1,000 MHz 1 GHz 1,000,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5734-1000 SSP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		1,000 MHz 1 GHz 1,000,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
CN5734-600 SP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB	10 W 10,000 mW 0.0134 hp 0.01 kW	600 MHz 0.6 GHz 600,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5734-600 SSP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB	10 W 10,000 mW 0.0134 hp 0.01 kW	600 MHz 0.6 GHz 600,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
CN5734-800 SP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		800 MHz 0.8 GHz 800,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5734-800 SSP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		800 MHz 0.8 GHz 800,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
CN5734-900 SP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		900 MHz 0.9 GHz 900,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5734-900 SSP	OCTEON Plus		August 2007	6	288 KiB 294,912 B 0.281 MiB	1,024 KiB 1 MiB 1,048,576 B 9.765625e-4 GiB		900 MHz 0.9 GHz 900,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
CN5740-1000 SP	OCTEON Plus		August 2007	8	384 KiB 393,216 B 0.375 MiB	2,048 KiB 2 MiB 2,097,152 B 0.00195 GiB		1,000 MHz 1 GHz 1,000,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5740-1000 SSP	OCTEON Plus		August 2007	8	384 KiB 393,216 B 0.375 MiB	2,048 KiB 2 MiB 2,097,152 B 0.00195 GiB		1,000 MHz 1 GHz 1,000,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
CN5740-600 SP	OCTEON Plus		August 2007	8	384 KiB 393,216 B 0.375 MiB	2,048 KiB 2 MiB 2,097,152 B 0.00195 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800		✔	✘	✔	✘	✔	✔
CN5740-600 SSP	OCTEON Plus		August 2007	8	384 KiB 393,216 B 0.375 MiB	2,048 KiB 2 MiB 2,097,152 B 0.00195 GiB		600 MHz 0.6 GHz 600,000 kHz	DDR2-800		✔	✔	✔	✘	✔	✔
Count: 168

codename	cnMIPS +
core count	2 + and 4 +
designer	Cavium +
first launched	September 13, 2004 +
full page name	cavium/microarchitectures/cnmips +
instance of	microarchitecture +
instruction set architecture	MIPS64 +
manufacturer	TSMC +
microarchitecture type	CPU +
name	cnMIPS +
pipeline stages	5 +
process	130 nm (0.13 μm, 1.3e-4 mm) +

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