List of Intel Xeon processors (Core-based) explained

See main article: List of Intel Xeon processors.

Xeon 3000 (uniprocessor), Dual Core

"Allendale" (65 nm)

• Based on Core microarchitecture
• Chip harvests from Conroe with half L2 cache disabled
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: 111 mm²
• Steppings: L2

"Conroe" (65 nm)

• Based on Core microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: 143 mm²
• Steppings: B2, G0

"Wolfdale-CL" (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• Models support only uni-processor configurations
• Die size: 107 mm²
• Steppings: E0, R0

"Wolfdale" (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All model support EIST
• All models support only single-processor configurations
• Die size: 107 mm²
• Steppings: C0, E0

Xeon 5000 series (dual-processor), Dual Core

"Woodcrest" (65 nm)

• Based on Core microarchitecture^[1]
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, EIST, XD bit (an NX bit implementation), Intel VT-x
• All models support dual-processor configurations
• Die size: 143 mm²
• Steppings: B2, G0
• For processors with G0 stepping V_min = 0.85 V

"Wolfdale-DP" (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All model support EIST except L5238, L5240.
• E5205, L5238, L5240, X5260, X5270, X5272 support Demand-Based Switching.
• All models support dual-processor configurations
• Die size: 107 mm²
• Steppings: C0, E0

Xeon 3000 series (uniprocessor), Quad Core

"Kentsfield" (65 nm)

• Based on Core microarchitecture^[2]
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: 2× 143 mm²
• Steppings: B3, G0

"Yorkfield-6M" (45 nm)

• Based on Penryn microarchitecture
• Chip harvests from Yorkfield with half L2 cache disabled
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Enhanced Halt State (C1E), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: M1: 2× 107 mm², R0: 2× 81 mm²
• Steppings: M1, R0

"Yorkfield" (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Enhanced Halt State (C1E), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: 2× 107 mm²
• Steppings: C1, E0

"Yorkfield-CL" (45 nm)

• Based on Penryn microarchitecture
• Chip harvests from Yorkfield with half L2 cache disabled
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Enhanced Halt State (C1E), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support uni-processor configurations
• Die size: 2× 107 mm²
• Steppings: C1, E0

Xeon 5000 series (dual-processor), Quad Core

"Clovertown" (65 nm)

• Based on Core microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• EIST support all except E5310, E5335.
• Intel Demand-Based Switching support E5320, E5345, L5318, X5355, X5365.
• All models support dual-processor configurations
• Steppings: B3, G0
• Die size: 2× 143 mm²

E5330, E5340 and E5350 is not listed on^[3] but it is mentioned on.^[4] In August 2007, E5330 is widely available. In June 2007, E5340 Engineering Samples were available on eBay.

"Harpertown" (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64, XD bit (an NX bit implementation), Intel VT-x, Demand-Based Switching except E5405, L5408; EIST except E5405
• All models support dual-processor configurations
• Die size: 2× 107 mm²
• Steppings: C0, E0

Xeon 7000 series (multiprocessor)

"Tigerton" (dual-core) (65 nm)

• Based on Core microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support quad-processor configurations
• Die size: 143 mm²
• Steppings: G0

"Tigerton QC" (quad-core) (MCP, 65 nm)

• Based on Core microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x
• All models support quad-processor configurations
• Die size: 2× 143 mm²
• Steppings: G0

Model number	sSpec number	Cores	Frequency	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Part number(s)	Release price (USD)
Quad Core
Xeon E7310	SLA6A (G0)	4	1.6 GHz	2 × 2 MB	1066 MT/s	6×	1.2–1.35 V	80 W	Socket 604	September 6, 2007	LF80565QH0254M	$856
Xeon E7320	SLA69 (G0)	4	2.13 GHz	2 × 2 MB	1066 MT/s	8×	1.2–1.35 V	80 W	Socket 604	September 6, 2007	LF80565QH0464M	$1177
Xeon E7330	SLA77 (G0)	4	2.4 GHz	2 × 3 MB	1066 MT/s	9×	1.2–1.35 V	80 W	Socket 604	September 6, 2007	LF80565QH0566M	$1391
Xeon E7340	SLA68 (G0)	4	2.4 GHz	2 × 4 MB	1066 MT/s	9×	1.2–1.35 V	80 W	Socket 604	September 6, 2007	LF80565QH0568M	$1980
Xeon X7350	SLA67 (G0)	4	2.93 GHz	2 × 4 MB	1066 MT/s	11×	1.2–1.35 V	130 W	Socket 604	September 6, 2007	LF80565KH0778M	$2301
Quad Core, low voltage
Xeon L7345	SLA6B (G0)	4	1.87 GHz	2 × 4 MB	1066 MT/s	7×	1.10–1.25 V	50 W	Socket 604	September 6, 2007	LF80565JH0368M	$2301

"Dunnington QC" (quad-core) (45 nm)

• Based on Penryn microarchitecture
• Chip harvests from Dunnington with two cores disabled
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Demand-Based Switching, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• E7440 supports Enhanced Intel SpeedStep Technology (EIST).
• All models support quad-processor configurations
• Transistors: 1.9 billion
• Die size: 503 mm²
• Steppings: A1

Model number	sSpec number	Frequency								Release date	Part number(s)	Release price (USD)
Quad Core
Xeon E7420	SLG9G (A1)	2133 MHz				8×	0.9–1.45 V	90 W		September 15, 2008	AD80583QH0468M	$1177
Xeon E7430	SLG9H (A1)	2133 MHz	2× 3 MB	12 MB	1066 MT/s	8×	0.9–1.45 V	90 W	Socket 604	September 15, 2008	AD80583QH046003	$1391
Xeon E7440	SLG9J (A1)	2400 MHz	2× 3 MB	16 MB	1066 MT/s	9×	0.9–1.45 V	90 W	Socket 604	September 15, 2008	AD80583QH056007	$1980
Quad Core, low voltage
Xeon L7445	SLG9L (A1)	2133 MHz				8×	0.9–1.45 V	50 W		September 15, 2008	AD80583JH046003	$1980

"Dunnington" (six core) (45 nm)

• Based on Penryn microarchitecture
• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Demand-Based Switching, Intel 64, XD bit (an NX bit implementation), Intel VT-x
• E7450 and X7460 support Enhanced Intel SpeedStep Technology (EIST).
• All models support quad-processor configurations
• Transistors: 1.9 billion
• Die size: 503 mm²
• Steppings: A1

Model number	sSpec number	Frequency								Release date	Part number(s)	Release price (USD)
Six Core
Xeon E7450	SLG9K (A1)	2400 MHz				9×	0.9–1.45 V	90 W		September 15, 2008	AD80582QH056003	$2301
Xeon E7458	SLG9N (A1)	2400 MHz	3× 3 MB	16 MB	1066 MT/s	9×	0.9–1.45 V	90 W	Socket 604	September 15, 2008	AD80582QH056007	OEM
Xeon X7460	SLG9P (A1)	2667 MHz	3× 3 MB	16 MB	1066 MT/s	10×	0.9–1.45 V	130 W	Socket 604	September 15, 2008	AD80582KH067007	$2729
Six Core, low voltage
Xeon L7455	SLG9M (A1)	2133 MHz				8×	0.9–1.45 V	65 W		September 15, 2008	AD80582JH046003	$2729

Notes and References

1. Web site: Intel Xeon 5100 microprocessor family. cpu-world.com.
2. Web site: Intel Xeon 3200 microprocessor family. cpu-world.com.
3. Web site: Intel Xeon Processor E5 Family . Intel.com . 2016-04-22.
4. Web site: cpu_xeon_p4 . Tyan.com . 2016-04-22 . https://web.archive.org/web/20150226182445/http://www.tyan.com/archive/support/html/cpu_xeon_p4.html . 2015-02-26 . dead .