# List of Intel Xeon processors (Nehalem-based)
## Xeon 3000-series (uniprocessor)
### "Lynnfield" (45 nm)

* Based on Nehalem microarchitecture
* Uni-processor only
* All models except X3430 support Hyper-Threading
* All models support: MMX, XD bit, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, SpeedStep, Turbo Boost, Smart Cache, VT-x, EPT, VT-d, TXT, ECC
* Die size: 296 mm²
* Steppings: B1
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Quad Core ||||||||||||||||
| Xeon X3430 | SLBLJ (B1) | 2.4 GHz | 1/1/2/3 | 4 | 4 × 256 KB | 8 MB | DMI | 18× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | September 8, 2009 | BX80605X3430 BV80605001914AG | $189 |
| Xeon X3440 | SLBLF (B1) | 2.53 GHz | 1/1/2/3 | 4 | 4 × 256 KB | 8 MB | DMI | 19× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | September 8, 2009 | BX80605X3440 BV80605002517AQ | $215 |
| Xeon X3450 | SLBLD (B1) | 2.67 GHz | 1/1/4/4 | 4 | 4 × 256 KB | 8 MB | DMI | 20× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | September 8, 2009 | BX80605X3450 BV80605001911AQ | $241 |
| Xeon X3460 | SLBJK (B1) | 2.8 GHz | 1/1/4/5 | 4 | 4 × 256 KB | 8 MB | DMI | 21× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | September 8, 2009 | BX80605X3460 BV80605001908AL | $316 |
| Xeon X3470 | SLBJH (B1) | 2.93 GHz | 2/2/4/5 | 4 | 4 × 256 KB | 8 MB | DMI | 22× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | September 8, 2009 | BX80605X3470 BV80605001905AJ | $589 |
| Xeon X3480 | SLBPT (B1) | 3.07 GHz | 2/2/4/5 | 4 | 4 × 256 KB | 8 MB | DMI | 23× | 2 × DDR3-1333 | 0.65–1.40 V | 95 W | LGA 1156 | May 30, 2010 | BX80605X3480 BV80605002505AH | $612 |
| Quad Core, low voltage ||||||||||||||||
| Xeon L3426 | SLBN3 (B1) | 1.87 GHz | 2/2/9/10 | 4 | 4 × 256 KB | 8 MB | DMI | 14× | 2 × DDR3-1333 | 0.65–1.40 V | 45 W | LGA 1156 | September 8, 2009 | BX80605L3426 BV80605004737AA | $284 |

### "Bloomfield" (45 nm)

* Based on Nehalem microarchitecture
* Uni-processor only
* Quad-core models support: Hyper-Threading, Turbo Boost
* All models support: MMX, XD bit, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, SpeedStep, Smart Cache, VT-x, EPT, ECC
* Die size: 263 mm²
* Steppings: D0
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Dual Core ||||||||||||||||
| Xeon W3503 | SLBGD (D0) | 2.4 GHz | — | 2 | 2× 256 KB | 4 MB | 1 × 4.8 GT/s QPI | 18× | 3 × DDR3-1066 | 0.8–1.225 V | 130 W | LGA 1366 | March 30, 2009 | AT80601002868AA | OEM |
| Xeon W3505 | SLBGC (D0) | 2.53 GHz | — | 2 | 2× 256 KB | 4 MB | 1 × 4.8 GT/s QPI | 19× | 3 × DDR3-1066 | 0.8–1.225 V | 130 W | LGA 1366 | March 30, 2009 | AT80601002865AA | OEM |
| Quad Core ||||||||||||||||
| Xeon W3520 | SLBEW (D0) | 2.67 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 20× | 3 × DDR3-1066 | 0.8–1.375 V | 130 W | LGA 1366 | March 30, 2009 | AT80601000741AB | $284 |
| Xeon W3530 | SLBKR (D0) | 2.8 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 21× | 3 × DDR3-1066 | 0.8–1.375 V | 130 W | LGA 1366 | March 16, 2010 | AT80601000897AB | $294 |
| Xeon W3540 | SLBEX (D0) | 2.93 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 22× | 3 × DDR3-1066 | 0.8–1.375 V | 130 W | LGA 1366 | March 30, 2009 | AT80601000921AB | $562 |
| Xeon W3550 | SLBEY (D0) | 3.07 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 23× | 3 × DDR3-1066 | 0.8–1.375 V | 130 W | LGA 1366 | August 9, 2009 | AT80601002112AB | $562 |
| Xeon W3565 | SLBEV (D0) | 3.2 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 24× | 3 × DDR3-1066 | 0.8–1.225 V | 130 W | LGA 1366 | November 1, 2009 | AT80601002727AB | $562 |
| Xeon W3570 | SLBES (D0) | 3.2 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 6.4 GT/s QPI | 24× | 3 × DDR3-1333 | 0.8–1.375 V | 130 W | LGA 1366 | March 30, 2009 | AT80601000918AB | $999 |
| Xeon W3580 | SLBET (D0) | 3.33 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 1 × 6.4 GT/s QPI | 25× | 3 × DDR3-1333 | 0.8–1.375 V | 130 W | LGA 1366 | August 9, 2009 | AT80601002274AB | $999 |

### "Jasper Forest" (45 nm)

* Based on Nehalem microarchitecture
* Uni-processor only
* LC3528 supports: Hyper-Threading, Turbo Boost
* All models support: MMX, XD bit, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, SpeedStep, Smart Cache, VT-x, EPT, VT-d, ECC
* Die size: 263 mm²
* Steppings: B0
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Single Core, low voltage ||||||||||||||||
| Xeon LC3518 | SLBWH (B0) | 1.73 GHz | — | 1 | 1 × 256 KB | 2 MB | DMI | 13× | 2× DDR3-800 | 0.75–1.35 V | 23 W | LGA 1366 | February 11, 2010 | AT80612002946AA | $192 |
| Dual Core, low voltage ||||||||||||||||
| Xeon LC3528 | SLBWG (B0) | 1.73 GHz | 1866 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 13× | 2× DDR3-800 | 0.75–1.35 V | 35 W | LGA 1366 | February 11, 2010 | AT80612002931AB | $302 |
| Quad Core ||||||||||||||||
| Xeon EC3539 | SLBWJ (B0) | 2.13 GHz | — | 4 | 4 × 256 KB | 8 MB | DMI | 16× | 3 × DDR3-1066 | 0.75–1.35 V | 65 W | LGA 1366 | February 11, 2010 | AT80612003090AA | $302 |

### "Clarkdale" (MCP, 32 nm)

* Based on Westmere microarchitecture
* Uni-processor only
* L3406 supports Hyper-Threading, Turbo Boost
* All models support: MMX, XD bit, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, SpeedStep, Smart Cache, VT-x, EPT, VT-d, TXT, ECC
* Die size: 81 mm² (CPU Component)
* Steppings: C2
| Model number | sSpec number | Frequency | Turbo | GPU frequency | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Dual Core, low voltage |||||||||||||||||
| Xeon L3403 | SLBT9 (K0) SLBRX (C2) | 2 GHz | — | — | 2 | 2 × 256 KB | 4 MB | DMI | 15× | 2 × DDR3-1066 | 0.65–1.40 V | 30 W | LGA 1156 | October 2010 | CM80616005496AB | OEM |
| Xeon L3406 | SLBT8 (K0) SLBQQ (C2) | 2.27 GHz | 2.53 GHz | — | 2 | 2 × 256 KB | 4 MB | DMI | 17× | 2 × DDR3-1066 | 0.65–1.40 V | 30 W | LGA 1156 | March 16, 2010 | CM80616005010AA BX80616L3406 | $189 |

### "Gulftown" (32 nm)

* Based on Westmere microarchitecture
* Uniprocessor-only systems
* All models support: MMX, XD bit, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, Hyper-Threading, AES-NI, SpeedStep, Turbo Boost, Smart Cache, VT-x, EPT, VT-d, TXT, ECC
* Die size: 240 mm²
* Steppings: B1
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Six Core ||||||||||||||||
| Xeon W3670 | SLBVE (B1) | 3.2 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 1 × 4.8 GT/s QPI | 24× | 3 × DDR3-1066 | 0.8–1.375 V | 130 W | LGA 1366 | August 29, 2010 | AT80613005490AC BX80613W3670 | $885 |
| Xeon W3680 | SLBV2 (B1) | 3.33 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 1 × 6.4 GT/s QPI | 25× | 3 × DDR3-1333 | 0.8–1.375 V | 130 W | LGA 1366 | March 16, 2010 | AT80613003543AF BX80613W3680 | $999 |
| Xeon W3690 | SLBW2 (B1) | 3.47 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 1 × 6.4 GT/s QPI | 26× | 3 × DDR3-1333 | 0.8–1.375 V | 130 W | LGA 1366 | February 14, 2011 | AT80613005931AB BX80613W3690 | $999 |

## Xeon 5000-series (dual-processor)
### "Nehalem-EP (Gainestown)" (45 nm) Efficient Performance

* Based on Nehalem microarchitecture
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Demand-Based Switching (Intel's Server EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, Intel x8 SDDC
* All models support: Hyper-Threading, Turbo Boost except E5502, E5503, E5504, E5506, L5506, E5507
* All models support dual-processor configurations
* Die size: 263 mm²
* Steppings: D0
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Dual Core ||||||||||||||||
| Xeon E5502 | SLBEZ (D0) | 1.87 GHz | — | 2 | 2× 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 14× | 3 × DDR3-800 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602000804AA | $188 |
| Xeon E5503 | SLBKD (D0) | 2 GHz | — | 2 | 2× 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 15× | 3 × DDR3-800 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80602003636AA | $224 |
| Dual Core, low voltage ||||||||||||||||
| Xeon L5508 | SLBGK (D0) | 2 GHz | 2/3 | 2 | 2× 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 15× | 3 × DDR3-1066 | 0.75–1.35 V | 38 W | LGA 1366 | March 30, 2009 | AT80602002697AC | $440 |
| Quad Core ||||||||||||||||
| Xeon E5504 | SLBF9 (D0) | 2 GHz | — | 4 | 4 × 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 15× | 3 × DDR3-800 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602000801AA | $224 |
| Xeon E5506 | SLBF8 (D0) | 2.13 GHz | — | 4 | 4 × 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 16× | 3 × DDR3-800 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602000798AA | $266 |
| Xeon E5507 | SLBKC (D0) | 2.27 GHz | — | 4 | 4 × 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 17× | 3 × DDR3-800 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80602000795AA | $266 |
| Xeon E5520 | SLBFD (D0) | 2.27 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 17× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602002091AA | $373 |
| Xeon E5530 | SLBF7 (D0) | 2.4 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 18× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602000792AA | $530 |
| Xeon E5540 | SLBF6 (D0) | 2.53 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 19× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 30, 2009 | AT80602000789AA | $774 |
| Xeon X5550 | SLBF5 (D0) | 2.67 GHz | 2/2/3/3 | 4 | 4 × 256 KB | 8 MB | 2 × 6.4 GT/s QPI | 20× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 30, 2009 | AT80602000771AA | $958 |
| Xeon X5560 | SLBF4 (D0) | 2.8 GHz | 2/2/3/3 | 4 | 4 × 256 KB | 8 MB | 2 × 6.4 GT/s QPI | 21× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 30, 2009 | AT80602000768AA | $1172 |
| Xeon X5570 | SLBF3 (D0) | 2.93 GHz | 2/2/3/3 | 4 | 4 × 256 KB | 8 MB | 2 × 6.4 GT/s QPI | 22× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 30, 2009 | AT80602000765AA | $1386 |
| Xeon W5580 | SLBF2 (D0) | 3.2 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 6.4 GT/s QPI | 24× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | March 30, 2009 | AT80602000756AD | $1600 |
| Xeon W5590 | SLBGE (D0) | 3.33 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 6.4 GT/s QPI | 25× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | August 9, 2009 | AT80602000753AA | $1600 |
| Quad Core, low voltage ||||||||||||||||
| Xeon L5506 | SLBFH (D0) | 2.13 GHz | — | 4 | 4 × 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 16× | 3 × DDR3-800 | 0.75–1.35 V | 60 W | LGA 1366 | March 30, 2009 | AT80602002712AA | $423 |
| Xeon L5518 | SLBFW (D0) | 2.13 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 16× | 3 × DDR3-1066 | 0.75–1.35 V | 60 W | LGA 1366 | March 30, 2009 | AT80602002265AB | $551 |
| Xeon L5520 | SLBFA (D0) | 2.27 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 17× | 3 × DDR3-1066 | 0.75–1.35 V | 60 W | LGA 1366 | March 30, 2009 | AT80602000810AA | $530 |
| Xeon L5530 | SLBGF (D0) | 2.4 GHz | 1/1/1/2 | 4 | 4 × 256 KB | 8 MB | 2 × 5.86 GT/s QPI | 18× | 3 × DDR3-1066 | 0.75–1.35 V | 60 W | LGA 1366 | August 9, 2009 | AT80602002927AB | $744 |

### "Jasper Forest-DP" (45 nm)

* Based on Nehalem microarchitecture
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Demand-Based Switching (Intel's Server EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, Intel x8 SDDC
* EC5549, LC5528, and LC5518 support: Hyper-Threading, Turbo Boost
* Die size: 263 mm²
* Steppings: B0
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Dual Core ||||||||||||||||
| Xeon EC5539 | SLBWL (B0) | 2.27 GHz | — | 2 | 2 × 256 KB | 4 MB | 1 × 5.86 GT/s QPI | 17× | 3 × DDR3-1333 | 0.75–1.35 V | 65 W | LGA 1366 | February 12, 2010 | AT80612003861AB | $388 |
| Quad Core ||||||||||||||||
| Xeon EC5509 | SLBWM (B0) | 2 GHz | — | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 15× | 3 × DDR3-1066 | 0.75–1.35 V | 85 W | LGA 1366 | February 12, 2010 | AT80612004740AA | $266 |
| Xeon EC5549 | SLBWP (B0) | 2.53 GHz | 2933 MHz | 4 | 4 × 256 KB | 8 MB | 1 × 5.86 GT/s QPI | 19× | 3 × DDR3-1333 | 0.75–1.35 V | 85 W | LGA 1366 | February 12, 2010 | AT80612005712AB | $530 |
| Quad Core, low voltage ||||||||||||||||
| Xeon LC5518 | SLBWF (B0) | 1.73 GHz | 2133 MHz | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 13× | 3 × DDR3-1066 | 0.75–1.35 V | 48 W | LGA 1366 | February 12, 2010 | AT80612002928AC | $519 |
| Xeon LC5528 | SLBWK (B0) | 2.13 GHz | 2533 MHz | 4 | 4 × 256 KB | 8 MB | 1 × 4.8 GT/s QPI | 16× | 3 × DDR3-1066 | 0.75–1.35 V | 60 W | LGA 1366 | February 12, 2010 | AT80612003858AA | $519 |

### "Westmere-EP" (32 nm) Efficient Performance

* Based on Westmere microarchitecture
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), TXT, Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, Intel x8 SDDC, AES-NI, Smart Cache, Hyper-Threading, Turbo Boost except E5603, E5606, E5607, L5609
* Dual-socket configurations supported
* Die size: 240 mm²
* Steppings: B1
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Dual Core ||||||||||||||||
| Xeon X5698 | SLC32 (B1) | 4.4 GHz | 0/1 | 2 | 2 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 33× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | Q1, 2011 | AT80614007314AA | OEM |
| Quad Core ||||||||||||||||
| Xeon E5603 | SLC2F (B1) | 1.6 GHz | — | 4 | 4 × 256 KB | 4 MB | 2 × 4.8 GT/s QPI | 12× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | February 14, 2011 | AT80614006954AA BX80614E5603 | $188 |
| Xeon E5606 | SLC2N (B1) | 2.13 GHz | — | 4 | 4 × 256 KB | 8 MB | 2 × 4.8 GT/s QPI | 16× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | February 14, 2011 | AT80614007290AE BX80614E5606 | $219 |
| Xeon E5607 | SLBZ9 (B1) | 2.27 GHz | — | 4 | 4 × 256 KB | 8 MB | 2 × 4.8 GT/s QPI | 17× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | February 14, 2011 | AT80614006789AA BX80614E5607 | $276 |
| Xeon E5620 | SLBV4 (B1) | 2.4 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 18× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80614005073AB BX80614E5620 | $387 |
| Xeon E5630 | SLBVB (B1) | 2.53 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 19× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80614005463AA BX80614E5630 | $551 |
| Xeon E5640 | SLBVC (B1) | 2.67 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 20× | 3 × DDR3-1066 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80614005466AA BX80614E5640 | $774 |
| Xeon X5647 | SLBZ7 (B1) | 2.93 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 22× | 3 × DDR3-1066 | 0.75–1.35 V | 130 W | LGA 1366 | February 14, 2011 | AT80614006780AA | $774 |
| Xeon X5667 | SLBVA (B1) | 3.07 GHz | 2/2/3/3 | 4 | 4 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 23× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 16, 2010 | AT80614005154AB | $1440 |
| Xeon X5672 | SLBYK (B1) | 3.2 GHz | 2/2/3/3 | 4 | 4 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 24× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | February 14, 2011 | AT80614005922AA | $1440 |
| Xeon X5677 | SLBV9 (B1) | 3.47 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 26× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | March 16, 2010 | AT80614005145AB | $1663 |
| Xeon X5687 | SLBVY (B1) | 3.6 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 27× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | February 14, 2011 | AT80614005919AB | $1663 |
| Quad Core, low power ||||||||||||||||
| Xeon L5609 | SLBVJ (B1) | 1.87 GHz | — | 4 | 4 × 256 KB | 12 MB | 2 × 4.8 GT/s QPI | 14× | 3 × DDR3-1066 | 0.75–1.35 V | 40 W | LGA 1366 | March 16, 2010 | AT80614005940AA | $440 |
| Xeon L5618 | SLBX3 (B1) | 1.87 GHz | 1/1/2/3 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 14× | 3 × DDR3-1066 | 0.75–1.35 V | 40 W | LGA 1366 | March 16, 2010 | AT80614005079AB | $530 |
| Xeon L5630 | SLBVD (B1) | 2.13 GHz | 1/1/2/2 | 4 | 4 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 16× | 3 × DDR3-1066 | 0.75–1.35 V | 40 W | LGA 1366 | March 16, 2010 | AT80614005484AA | $551 |
| Six Core ||||||||||||||||
| Xeon E5645 | SLBWZ (B1) | 2.4 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 18× | 3 × DDR3-1333 | 0.75–1.35 V | 80 W | LGA 1366 | March 16, 2010 | AT80614003597AC | $551 |
| Xeon E5649 | SLBZ8 (B1) | 2.53 GHz | 1/1/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 19× | 3 × DDR3-1333 | 0.75–1.35 V | 80 W | LGA 1366 | February 14, 2011 | AT80614006783AB BX80614E5649 | $774 |
| Xeon X5650 | SLBV3 (B1) | 2.67 GHz | 2/2/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 20× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 16, 2010 | AT80614004320AD BX80614X5650 | $996 |
| Xeon X5660 | SLBV6 (B1) | 2.8 GHz | 2/2/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 21× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 16, 2010 | AT80614005127AA BX80614X5660 | $1219 |
| Xeon X5670 | SLBV7 (B1) | 2.93 GHz | 2/2/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 22× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | March 16, 2010 | AT80614005130AA BX80614X5670 | $1440 |
| Xeon X5675 | SLBYL (B1) | 3.07 GHz | 2/2/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 23× | 3 × DDR3-1333 | 0.75–1.35 V | 95 W | LGA 1366 | February 14, 2011 | AT80614006696AA BX80614X5675 | $1440 |
| Xeon X5679 | SLC2E (B1) | 3.2 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 24× | 3 × DDR3-1066 | 0.75–1.35 V | 115 W | LGA 1366 | February 14, 2011 | AT80614006924AA | OEM |
| Xeon X5680 | SLBV5 (B1) | 3.33 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 25× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | March 16, 2010 | AT80614005124AA BX80614X5680 | $1663 |
| Xeon X5690 | SLBVX (B1) | 3.47 GHz | 1/1/1/1/2/2 | 6 | 6 × 256 KB | 12 MB | 2 × 6.4 GT/s QPI | 26× | 3 × DDR3-1333 | 0.75–1.35 V | 130 W | LGA 1366 | February 14, 2011 | AT80614005913AB BX80614X5690 | $1663 |
| Six Core, low power ||||||||||||||||
| Xeon L5638 | SLBWY (B1) | 2 GHz | 1/1/2/2/3/3 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 15× | 3 × DDR3-1333 | 0.75–1.35 V | 60 W | LGA 1366 | March 16, 2010 | AT80614003591AB | $958 |
| Xeon L5639 | SLBZJ (B1) | 2.13 GHz | 2/2/3/3/4/4 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 16× | 3 × DDR3-1333 | 0.75–1.35 V | 60 W | LGA 1366 | February 14, 2011 | AT80614005076AB | OEM |
| Xeon L5640 | SLBV8 (B1) | 2.27 GHz | 2/2/3/3/4/4 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 17× | 3 × DDR3-1333 | 0.75–1.35 V | 60 W | LGA 1366 | March 16, 2010 | AT80614005133AB BX80614L5640 | $996 |
| Xeon L5645 | SLBVW (B1) | 2.4 GHz | 2/2/3/3/4/4 | 6 | 6 × 256 KB | 12 MB | 2 × 5.86 GT/s QPI | 18× | 3 × DDR3-1333 | 0.75–1.35 V | 60 W | LGA 1366 | February 14, 2011 | AT80614005136AB | OEM |

## Xeon 7000-series and E7 (multiprocessor)
### "Nehalem-EX (Beckton)" (45 nm) Expandable

* Based on Nehalem microarchitecture
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), TXT, Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, Intel x8 SDDC, Turbo Boost, Smart Cache, Hyper-Threading except X7542
* 65xx models support single- and dual-processor configurations, while 75xx models support up to 8-processor configurations
* Transistors: 2.3 billion
* Die size: 684 mm²
* Steppings: D0
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Quad Core ||||||||||||||||
| Xeon E6510 | SLBRL (D0) | 1.73 GHz | — | 4 | 4× 256 KB | 12 MB | 4 × 4.8 GT/s QPI | 13× | 4 × DDR3-1333 | 0.675–1.35 V | 105 W | LGA 1567 | March 30, 2010 | AT80604004896AA | $744 |
| Xeon E7520 | SLBRK (D0) | 1.87 GHz | — | 4 | 4× 256 KB | 18 MB | 4 × 4.8 GT/s QPI | 14× | 4 × DDR3-1333 | 0.675–1.35 V | 105 W | LGA 1567 | March 30, 2010 | AT80604004887AA | $856 |
| Six Core ||||||||||||||||
| Xeon E7530 | SLBRJ (D0) | 1.87 GHz | 2133 MHz | 6 | 6× 256 KB | 12 MB | 4 × 5.86 GT/s QPI | 14× | 4 × DDR3-1333 | 0.675–1.35 V | 105 W | LGA 1567 | March 30, 2010 | AT80604004884AA | $1391 |
| Xeon E6540 | SLBRC (D0) | 2 GHz | 2266 MHz | 6 | 6× 256 KB | 18 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.675–1.35 V | 105 W | LGA 1567 | March 30, 2010 | AT80604001800AB | $1712 |
| Xeon E7540 | SLBRG (D0) | 2 GHz | 2266 MHz | 6 | 6× 256 KB | 18 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.675–1.35 V | 105 W | LGA 1567 | March 30, 2010 | AT80604004878AA | $1980 |
| Xeon X7542 | SLBRM (D0) | 2.67 GHz | 2800 MHz | 6 | 6× 256 KB | 18 MB | 4 × 5.86 GT/s QPI | 20× | 4 × DDR3-1333 | 0.675–1.35 V | 130 W | LGA 1567 | March 30, 2010 | AT80604005280AA | $1980 |
| Six Core, low power ||||||||||||||||
| Xeon L7545 | SLBRH (D0) | 1.87 GHz | 2533 MHz | 6 | 6× 256 KB | 18 MB | 4 × 5.86 GT/s QPI | 14× | 4 × DDR3-1333 | 0.675–1.35 V | 95 W | LGA 1567 | March 30, 2010 | AT80604004881AA | $2087 |
| Eight Core ||||||||||||||||
| Xeon X6550 | SLBRB (D0) | 2 GHz | 2400 MHz | 8 | 8× 256 KB | 18 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.675–1.35 V | 130 W | LGA 1567 | March 30, 2010 | AT80604001797AB | $2461 |
| Xeon X7550 | SLBRE (D0) | 2 GHz | 2400 MHz | 8 | 8× 256 KB | 18 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.675–1.35 V | 130 W | LGA 1567 | March 30, 2010 | AT80604004872AA | $2729 |
| Xeon X7560 | SLBRD (D0) | 2.27 GHz | 2666 MHz | 8 | 8× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 17× | 4 × DDR3-1333 | 0.675–1.35 V | 130 W | LGA 1567 | March 30, 2010 | AT80604004869AA | $3692 |
| Eight Core, low power ||||||||||||||||
| Xeon L7555 | SLBRF (D0) | 1.87 GHz | 2533 MHz | 8 | 8× 256 KB | 24 MB | 4 × 5.86 GT/s QPI | 14× | 4 × DDR3-1333 | 0.675–1.35 V | 95 W | LGA 1567 | March 30, 2010 | AT80604004875AA | $3157 |

### "Westmere-EX" (32 nm) Expandable

* Based on Westmere microarchitecture.
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), TXT, Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, Intel DDDC, Hyper-threading (except E7-8837), Turbo Boost, AES-NI, Smart Cache.
* 28xx models support single- and dual-processor configurations, 48xx models support up to four-processor configurations, 88xx models support up to eight-processor configurations.
* Transistors: 2.6 billion
* Die size: 513 mm²
* Steppings: A2
| Model number | sSpec number | Frequency | Turbo | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | TDP | Socket | Release date | Part number(s) | Release price (USD) |
| Six Core ||||||||||||||||
| Xeon E7-2803 | SLC3M (A2) | 1.73 GHz | — | 6 | 6× 256 KB | 18 MB | 4 × 4.8 GT/s QPI | 13× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615006438AB | $774 |
| Xeon E7-4807 | SLC3L (A2) | 1.87 GHz | — | 6 | 6× 256 KB | 18 MB | 4 × 4.8 GT/s QPI | 14× | 4 × DDR3-1333 | 0.6–1.35 V | 95 W | LGA 1567 | April 3, 2011 | AT80615006432AB | $890 |
| Eight Core ||||||||||||||||
| Xeon E7-2820 | SLC3R (A2) | 2 GHz | 1/1/1/2 | 8 | 8× 256 KB | 18 MB | 4 × 5.86 GT/s QPI | 15× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615007245AA | $1334 |
| Xeon E7-2830 | SLC3J (A2) | 2.13 GHz | 1/1/1/2 | 8 | 8× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 16× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615005787AB | $1779 |
| Xeon E7-4820 | SLC3G (A2) | 2 GHz | 1/1/1/2 | 8 | 8× 256 KB | 18 MB | 4 × 5.86 GT/s QPI | 15× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615005772AC | $1446 |
| Xeon E7-4830 | SLC3Q (A2) | 2.13 GHz | 1/1/1/2 | 8 | 8× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 16× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615007089AA BX80615E74830 | $2059 |
| Xeon E7-8830 | SLC3K (A2) | 2.13 GHz | 1/1/1/2 | 8 | 8× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 16× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615005826AB | $2280 |
| Xeon E7-8837 | SLC3N (A2) | 2.67 GHz | 1/1/1/1 | 8 | 8× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 20× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615006750AB | $2280 |
| Ten Core ||||||||||||||||
| Xeon E7-2850 | SLC3W (A2) | 2 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007452AA | $2558 |
| Xeon E7-2860 | SLC3H (A2) | 2.27 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 17× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615005781AB | $3670 |
| Xeon E7-2870 | SLC3U (A2) | 2.4 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 30 MB | 4 × 6.4 GT/s QPI | 18× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007266AA | $4227 |
| Xeon E7-4850 | SLC3V (A2) | 2 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007449AA | $2837 |
| Xeon E7-4860 | SLC3S (A2) | 2.27 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 17× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007254AA | $3838 |
| Xeon E7-4870 | SLC3T (A2) | 2.4 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 30 MB | 4 × 6.4 GT/s QPI | 18× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007263AA BX80615E74870 | $4394 |
| Xeon E7-8850 | SLC3D (A2) | 2 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 15× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615007446AA | $3059 |
| Xeon E7-8860 | SLC3F (A2) | 2.27 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 24 MB | 4 × 6.4 GT/s QPI | 17× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615005760AB | $4061 |
| Xeon E7-8870 | SLC3E (A2) | 2.4 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 30 MB | 4 × 6.4 GT/s QPI | 18× | 4 × DDR3-1333 | 0.6–1.35 V | 130 W | LGA 1567 | April 3, 2011 | AT80615005757AB | $4616 |
| Ten Core, low power ||||||||||||||||
| Xeon E7-8867L | SLC3P (A2) | 2.13 GHz | 1/1/2/3/3 | 10 | 10× 256 KB | 30 MB | 4 × 6.4 GT/s QPI | 16× | 4 × DDR3-1333 | 0.6–1.35 V | 105 W | LGA 1567 | April 3, 2011 | AT80615007002AB | $4172 |