# List of Intel Itanium processors

The Itanium from Intel is a high-end server and supercomputer microprocessor.

## Itanium (2001)
### Merced (180 nm)

Steppings: C0, C1 and C2. CPUID: 0007000604h (stepping C0), 0007000704h (stepping C1) or 0007000804h (stepping C2). Transistor count: 25.4 million for CPU, 295 million for the external L3 cache. The FSB data bus is 64 bits wide, not 128 like in Itanium 2.
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | Voltage | TDP (W) | Socket | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | Voltage | TDP (W) | Socket | Release date | Price |
| Itanium 733 MHz 2 MB | SL4LT, SL5VS, SL6RH | 733 MHz | 96 KB | 2 MB | 266 MT/s | 1.25–1.6 V | 116 | PAC418 | 2001-05-29 | $1,177 |
| Itanium 733 MHz 4 MB | SL4LS, SL5VT | 733 MHz | 96 KB | 4 MB | 266 MT/s | 1.25–1.6 V | 130 | PAC418 | 2001-05-29 | $4,227 |
| Itanium 800 MHz 2 MB | SL4LR, SL5VU, SL6RK | 800 MHz | 96 KB | 2 MB | 266 MT/s | 1.25–1.6 V | 116 | PAC418 | 2001-05-29 | $1,980 |
| Itanium 800 MHz 4 MB | SL4LQ, SL5VW, SL6RL | 800 MHz | 96 KB | 4 MB | 266 MT/s | 1.25–1.6 V | 130 | PAC418 | 2001-05-29 | $4,227 |

## Itanium 2 (2002-2007)

Itanium 2 uses socket PAC611 with a 128 bit wide FSB. The 90 nm CPUs (9000 and 9100 series) bring dual-core chips and an updated microarchitecture adding multithreading and splitting the L2 cache into a 256 KB data cache and 1 MB instruction cache per core (the pre-9000 series L2 cache being a 256 KB common cache). All Itaniums except some 130 nm models are capable of >2-socket SMP.

### McKinley (180 nm)

Stepping: B3. Die size: 421 mm$^2$. Transistor count: 221 million. CPUID: 001F000704h
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | Voltage | TDP (W) | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | Voltage | TDP (W) | Release date | Price |
| Itanium 2 900 MHz 1.5 MB | SL67W, SL6P6 | 900 MHz | 256 KB | 1.5 MB | 400 MT/s | 1.5 V | 90 | 2002-07-08 | $1,338 |
| Itanium 2 1.0 GHz 1.5 MB | SL67U, SL6P5 | 1000 MHz | 256 KB | 1.5 MB | 400 MT/s | 1.5 V | 100 | 2002-07-08 | $2,247 |
| Itanium 2 1.0 GHz 3 MB | SL67V, SL6P7 | 1000 MHz | 256 KB | 3 MB | 400 MT/s | 1.5 V | 100 | 2002-07-08 | $4,226 |

### Madison (130 nm)

Stepping: B1. Die size: 374 mm$^2$. Transistor count: 410 million. CPUID: 001F010504h. The Madison 9M table contains the 4MB and 6MB successors of the first Madisons.
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Itanium 2 1.3 GHz 3 MB | SL6XD | 1300 MHz | 256 KB | 3 MB | 400 MT/s | MP | 1.3 V | 97 | 2003-06-30 | $1,338 |
| Itanium 2 1.4 GHz 4 MB | SL6XE | 1400 MHz | 256 KB | 4 MB | 400 MT/s | MP | 1.3 V | 91 | 2003-06-30 | $2,247 |
| Itanium 2 1.5 GHz 6 MB | SL6XF | 1500 MHz | 256 KB | 6 MB | 400 MT/s | MP | 1.3 V | 107 | 2003-06-30 | $4,226 |
| Itanium 2 1.4 GHz 1.5 MB | SL76K | 1400 MHz | 256 KB | 1.5 MB | 400 MT/s | DP | 1.3 V | 91 | 2003-09-08 | $1,172 |
| Itanium 2 1.4 GHz 3 MB | SL7FP | 1400 MHz | 256 KB | 3 MB | 400 MT/s | DP | 1.3 V | 91 | 2004-04-13 | $1,172 |
| Itanium 2 1.6 GHz 3 MB | SL7FQ | 1600 MHz | 256 KB | 3 MB | 400 MT/s | DP | 1.3 V | 99 | 2004-04-13 | $2,408 |

#### Deerfield

The same chip as Madison, but at a lower voltage.
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| LV Itanium 2 1.0 GHz 1.5 MB | SL754 | 1000 MHz | 256 KB | 1.5 MB | 400 MT/s | DP | 1.1 V | 55 | 2003-09-08 | $744 |

### Madison 9M (130 nm)

Steppings: A1 and A2. Die size: 432 mm$^2$. Transistor count: 592 million. CPUID: 001F020104h (stepping A1) or 001F020204h (stepping A2). 9M is the chip of all the third generation Itanium 2s, irrespective of the amount of enabled cache.
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Itanium 2 1.5 GHz 4 MB | SL7ED, SL8CX | 1500 MHz | 256 KB | 4 MB | 400 MT/s | MP | 1.3 V | 107 | 2004-11-08 | $910 |
| Itanium 2 1.6 GHz 6 MB | SL7EB, SL8CV | 1600 MHz | 256 KB | 6 MB | 400 MT/s | MP | 1.3 V | 122 | 2004-11-08 | $1,980 |
| Itanium 2 1.6 GHz 9 MB | SL87H, SL8CU | 1600 MHz | 256 KB | 9 MB | 400 MT/s | MP | 1.3 V | 122 | 2004-11-08 | $4,226 |
| Itanium 2 1.6 GHz 6 MB | SL93X | 1600 MHz | 256 KB | 6 MB | 533 MT/s | MP | 1.3 V | 122 | 2006-2? | |
| Itanium 2 1.6 GHz 9 MB | SL93W | 1600 MHz | 256 KB | 9 MB | 533 MT/s | MP | 1.3 V | 122 | 2006-2? | |
| Itanium 2 1.66 GHz 6 MB | SL8JK | 1666 MHz | 256 KB | 6 MB | 667 MT/s | MP | 1.3 V | 122 | 2005-07-18 | $2194 |
| Itanium 2 1.66 GHz 9 MB | SL8JJ | 1666 MHz | 256 KB | 9 MB | 667 MT/s | MP | 1.3 V | 122 | 2005-07-18 | $4,655 |

#### Fanwood

The same chip as Madison 9M, but restricted to 2-socket and uniprocessor systems.
| Model | S-Spec number | Clock speed | Cache | Cache | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| Model | S-Spec number | Clock speed | L2 | L3 | FSB speed | SMP | Voltage | TDP (W) | Release date | Price |
| LV Itanium 2 1.3 GHz 3 MB | SL7SD, SL8CY | 1300 MHz | 256 KB | 3 MB | 400 MT/s | DP | | 62 | 2004-11-08 | $530 |
| Itanium 2 1.6 GHz 3 MB | SL7EC, SL8CW | 1600 MHz | 256 KB | 3 MB | 400 MT/s | DP | 1.3 V | 99 | 2004-11-08 | $851 |
| Itanium 2 1.6 GHz 3 MB | SL7EF, SL8CZ | 1600 MHz | 256 KB | 3 MB | 533 MT/s | DP | 1.3 V | 99 | 2004-11-08 | $1,172 |

### HP mx2 MCM (130 nm)

This multi-chip module codenamed Hondo is not an Intel product, but a separate project of Hewlett-Packard to pack two CPUs onto one PAC611 socket. The S-Spec SL75Z was assigned to the chips that Intel sent to HP for use in mx2.
| Model | Clock speed | Cache | Cache | Cache | FSB speed | SMP | Cores | Voltage | TDP (W) | Release date |
| Model | Clock speed | L2 | L3 | L4 | FSB speed | SMP | Cores | Voltage | TDP (W) | Release date |
| HP mx2 | 1100 MHz | 2×256 KB | 2×4 MB | 32 MB | 400 MT/s | MP | 2 | 1.1 V | 170 | 2004-06 |

### Montecito (90 nm)

Steppings: C1 and C2. Die size: 596 mm$^2$. Transistor count: 1720 million. CPUID: 0020000504h (stepping C1) or 0020000704h (stepping C2). All processors can support the legacy 400 MT/s FSB. From Montecito onwards all Itaniums are MP-capable.
| Model number | Clock speed | Cache | Cache | FSB speed | Multiplier | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Model number | Clock speed | L2 | L3 | FSB speed | Multiplier | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Itanium 2 9010 | 1.6 GHz | 256 KB D + 1 MB I | 6 MB | 533 MHz | 12× | 1 | 1 | 1.0875–1.25 V | 75 W | PPGA611 | 2006-07-18 | $696 |
| Itanium 2 9015 | 1.4 GHz | 256 KB D + 1 MB I | 2×6 MB | 400 MHz | 14× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2006-07-18 | $749 |
| Itanium 2 9020 | 1.42 GHz | 256 KB D + 1 MB I | 2×6 MB | 533 MHz | 10.5× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2006-07-18 | $910 |
| Itanium 2 9030 | 1.6 GHz | 256 KB D + 1 MB I | 2×4 MB | 533 MHz | 12× | 2 | 1 | 1.0875–1.25 V | 104 W | PPGA611 | 2006-07-18 | $1552 |
| Itanium 2 9040 | 1.6 GHz | 256 KB D + 1 MB I | 2×9 MB | 533 MHz | 12× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2006-07-18 | $1980 |
| Itanium 2 9050 | 1.6 GHz | 256 KB D + 1 MB I | 2×12 MB | 533 MHz | 12× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2006-07-18 | $3692 |

### Montvale (90 nm)

The chip is similar to Montecito, but the stepping is A1 and the CPUID is 0020010104h. The models with 533 MT/s FSB also support 400 MT/s FSB operation. The processors with the Core level Lock-Step error correction feature were released only in 2008. Even though Intel does not use the "Itanium 2" branding for the 9100-series, it's still grouped with Itanium 2 processors because it uses the same platform and is a minor update on the 9000-series.
| Model number | Clock speed | Cache | Cache | FSB speed | Multiplier | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Model number | Clock speed | L2 | L3 | FSB speed | Multiplier | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Itanium 9110N | 1.6 GHz | 256 KB D + 1 MB I | 12 MB | 533 MHz | 12× | 1 | 1 | 1.0875–1.25 V | 75 W | PPGA611 | 2007-10-31 | $696 |
| Itanium 9120N | 1.42 GHz | 256 KB D + 1 MB I | 2×6 MB | 533 MHz | 10.5× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $910 |
| Itanium 9130M | 1.66 GHz | 256 KB D + 1 MB I | 2×4 MB | 667 MHz | 10× | 2 | 1 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $1552 |
| Itanium 9140N | 1.6 GHz | 256 KB D + 1 MB I | 2×9 MB | 533 MHz | 12× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $1980 |
| Itanium 9140M | 1.66 GHz | 256 KB D + 1 MB I | 2×9 MB | 667 MHz | 10× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $1980 |
| Itanium 9150N | 1.6 GHz | 256 KB D + 1 MB I | 2×12 MB | 533 MHz | 12× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $3692 |
| Itanium 9150M | 1.66 GHz | 256 KB D + 1 MB I | 2×12 MB | 667 MHz | 10× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | 2007-10-31 | $3692 |
| Itanium 9152M | 1.66 GHz | 256 KB D + 1 MB I | 2×12 MB | 667 MHz | 10× | 2 | 2 | 1.0875–1.25 V | 104 W | PPGA611 | | |

## Itanium (2007–2019)

These later generations of Itanium use socket LGA 1248, the QuickPath Interconnect and Scalable Memory Interconnect having replaced the Front-Side Bus used by Itanium 2.

### Tukwila (65 nm)

Stepping: E0. Die size: 699 mm$^2$. Transistor count: 2046 million. CPUID: 0020020404. All models support: XD bit (an NX bit implementation), Hyper-threading, Turbo Boost, VT-i2 (Itanium Virtualization technology), Intel VT-d, RAS with Advanced Machine Check Architecture, Cache Safe technology, Enhanced Demand Based Switching, ECC, two memory controllers each with two SMI links to memory buffers for DDR3, for a combined memory bandwidth of 34 GB/s and capacity of 256 GB. The QPI bandwidth is 96 GB/s for cache coherency and 24 GB/s for I/O.
| Model number | Clock speed | Clock speed | Cache | Cache | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Model number | Clock speed | Turbo Boost | L2 | L3 | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Itanium 9310 | 1.60 GHz | — | 256 KiB D + 512 KiB I | 2×5 MiB | 4.8 GT/s | 2 | 2 | 0.8–1.35 V | 130W | LGA1248 | 2010-02-08 | $946 |
| Itanium 9320 | 1.33 GHz | 1.46 GHz | 256 KiB D + 512 KiB I | 4×4 MiB | 4.8 GT/s | 4 | 2 | 0.8–1.35 V | 155W | LGA1248 | 2010-02-08 | $1614 |
| Itanium 9330 | 1.46 GHz | 1.60 GHz | 256 KiB D + 512 KiB I | 4×5 MiB | 4.8 GT/s | 4 | 2 | 0.8–1.35 V | 155W | LGA1248 | 2010-02-08 | $2059 |
| Itanium 9340 | 1.60 GHz | 1.73 GHz | 256 KiB D + 512 KiB I | 4×5 MiB | 4.8 GT/s | 4 | 2 | 0.8–1.35 V | 185W | LGA1248 | 2010-02-08 | $2059 |
| Itanium 9350 | 1.73 GHz | 1.86 GHz | 256 KiB D + 512 KiB I | 4×6 MiB | 4.8 GT/s | 4 | 2 | 0.8–1.35 V | 185W | LGA1248 | 2010-02-08 | $3838 |

### Poulson (32 nm)

Stepping: D0. Die size: 544 mm$^2$. Transistor count: 3.1 billion. CPUID: 0021000404. All models support: Itanium New Instructions, XD bit (an NX bit implementation), Intel VT-x, Intel VT-d, VT-i3 (Itanium Virtualization technology), Hyper-threading (with Dual-Domain Multithreading), Turbo Boost, Enhanced Intel SpeedStep Technology (EIST), Cache-Safe technology, RAS with Advanced Machine Check Architecture, Instruction Replay technology, ECC, two memory controllers each with two SMI links to memory buffers for DDR3, for a combined memory bandwidth of 45 GB/s and capacity of 512 GB. The QPI bandwidth is 128 GB/s for cache coherency and 32 GB/s for I/O.
| Model number | Clock speed | Clock speed | Cache | Cache | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Model number | Clock Speed | Turbo-boost | L2 | L3 | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Itanium 9520 | 1.73 GHz | | 256 KiB D + 512 KiB I | 20 MiB | 6.4 GT/s | 4 | 2 | 0.85-1.2 V | 130W | LGA1248 | 2012-11-08 | $1350 |
| Itanium 9540 | 2.13 GHz | | 256 KiB D + 512 KiB I | 24 MiB | 6.4 GT/s | 8 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2012-11-08 | $2650 |
| Itanium 9550 | 2.4 GHz | | 256 KiB D + 512 KiB I | 32 MiB | 6.4 GT/s | 4 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2012-11-08 | $3750 |
| Itanium 9560 | 2.53 GHz | | 256 KiB D + 512 KiB I | 32 MiB | 6.4 GT/s | 8 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2012-11-08 | $4650 |

### Kittson (32 nm)

The 9700 series, despite nominally having a different stepping (E0 with CPUID 0021000504), is functionally identical with the 9500 series, even having exactly the same bugs, the only difference being the 133 MHz higher frequency of 9760 and 9750 over 9560 and 9550 respectively. Intel had committed to at least one more generation after Poulson, first mentioning Kittson on 14 June 2007. Kittson was supposed to be on a 22 nm process and use the same LGA2011 socket and platform as Xeons. On 31 January 2013 Intel issued an update to their plans for Kittson: it would have the same LGA1248 socket and 32 nm process as Poulson, effectively halting any further development of Itanium processors.
| Model number | Clock speed | Clock speed | Cache | Cache | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Model number | Clock Speed | Turbo-boost | L2 | L3 | QuickPath | Cores | Threads per core | Voltage | TDP (W) | Socket | Release date | Price (USD) |
| Itanium 9720 | 1.73 GHz | | 256 KiB D + 512 KiB I | 20 MiB | 6.4 GT/s | 4 | 2 | 0.85-1.2 V | 130W | LGA1248 | 2017-05-11 | $1350 |
| Itanium 9740 | 2.13 GHz | | 256 KiB D + 512 KiB I | 24 MiB | 6.4 GT/s | 8 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2017-05-11 | $2650 |
| Itanium 9750 | 2.53 GHz | | 256 KiB D + 512 KiB I | 32 MiB | 6.4 GT/s | 4 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2017-05-11 | $3750 |
| Itanium 9760 | 2.66 GHz | | 256 KiB D + 512 KiB I | 32 MiB | 6.4 GT/s | 8 | 2 | 0.85-1.2 V | 170W | LGA1248 | 2017-05-11 | $4650 |