Westmere (microarchitecture)




For other uses, see Westmere (disambiguation).

























































Westmere
L1 cache
 64 KB per core
L2 cache 256 KB per core
L3 cache 4 MB to 30 MB shared
Model Core in, Xeon
Created January 7, 2010; 9 years ago (January 7, 2010)
Transistors 382M to 2600M 32nm
Architecture
Nehalem x86
Instructions
MMX, AES-NI, CLMUL
Extensions


  • x86-64, Intel 64


  • SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2


  • VT-x, VT-d
Socket(s)

  • LGA 1156

  • LGA 1366

  • LGA 1567

  • rPGA988A
Predecessor Nehalem
Successor Sandy Bridge
GPU 533 MHz to 900 MHz
177M 45nm (K0)



Connection of the GPU inside the Westmere microarchitecture


Westmere (formerly Nehalem-C) is the code name given to the 32 nm die shrink of Nehalem. While sharing the same CPU sockets, Westmere included Intel HD, UHD and Iris Graphics, Nehalem did not.


The first Westmere-based processors were launched on January 7, 2010, by Intel Corporation.


The Westmere architecture has been available under the Intel brands of Core i3, Core i5, Core i7, Pentium, Celeron and Xeon.




Contents






  • 1 Technology


  • 2 CPU variants


  • 3 Westmere CPUs


    • 3.1 Server / Desktop processors


    • 3.2 Mobile processors




  • 4 Roadmap


  • 5 See also


  • 6 References


  • 7 External links





Technology


Westmere's feature improvements from Nehalem, as reported:



  • Native six-core (Gulftown) and ten-core (Westmere-EX) processors.[1]

  • A new set of instructions that gives over 3x the encryption and decryption rate of Advanced Encryption Standard (AES) processes compared to before.[2]
    • Delivers seven new instructions (AES instruction set or AES-NI) that can be used by the AES algorithm. Also an instruction called PCLMULQDQ (see CLMUL instruction set) that will perform carry-less multiplication for use in cryptography and data compression.[3]


  • Integrated graphics, added into the processor package (dual core Arrandale and Clarkdale only).

  • Improved virtualization latency.[4]

  • New virtualization capability: "VMX Unrestricted mode support," which allows 16-bit guests to run (real mode and big real mode).

  • Support for "Huge Pages" of 1 GB in size.







































Translation lookaside buffer sizes [5]
Cache
 Page Size
Name Level 4 KB 2 MB 1 GB
DTLB 1st 64 32 N/A
ITLB 1st 128 7 / logical core N/A
STLB 2nd 512 none none


CPU variants



















































Processing Cores
(Interface)		 Process Die Size CPUID Model Stepping Mobile Desktop,
UP Server		 DP Server MP Server

Ten-Core
(Quad-channel)[6]
 32 nm 513 mm² 206F2 47 A2
Westmere-EX
(80615)

Six-Core
(Triple-Channel)		 32 nm 248 mm² 206C0 (ES/QS),
206C1 (ES/QS),
206C2		 44 A0,
B0,
B1
Gulftown
(80613)
Westmere-EP
(80614)

Dual-Core (Dual-Channel,
PCIe, Graphics Core)		 32 nm
45 nm		 114 mm²
+81 mm²		 20652
20655		 37 C2
K0
Arrandale
(80617)
Clarkdale
(80616)


Westmere CPUs




  • TDP includes the integrated GPU, if present.

  • Clarkdale processors feature 16 PCIe 2.0 lanes, which can be used in 1x16 or 2x8 configuration.


  • Clarkdale and Arrandale contain the 32 nm dual core processor Hillel and the 45 nm integrated graphics device Ironlake, and support switchable graphics.[7][8]

  • Only certain higher-end CPUs support AES-NI and 1GB Huge Pages.



Server / Desktop processors



























































































































































































































































































































































































































































































































Codename
 Market
Cores /
Threads
Socket
 Processor
Branding & model
Clock rate
Turbo
 TDP
 Interfaces
L3
cache
 Release
Date
 Price
Core
 GPU
 Chipset
 Memory

Westmere-EX[9]
 MP Server
 10 (20)
 LGA
1567
 Xeon
 E7-8870
 2.4 GHz
 N/A
 Yes
 130 W
 4× QPI 6.4 GT/s
 4× DDR3-1066
 30 MB
 2011-04-05[10]
 $4616
E7-4870
 $4394
E7-2870
 $4227
E7-8867L
 2.13 GHz
 105 W
 $4172
E7-8860
 2.26 GHz
 130 W
 24 MB
 $4061
E7-4860
 $3838
E7-2860
 $3670
E7-8850
 2 GHz
 $3059
E7-4850
 $2837
E7-2850
 $2558
8 (8)
 E7-8837
 2.66 GHz
 $2280
8 (16)
 E7-8830
 2.13 GHz
 105 W
E7-4830
 $2059
E7-2830
 $1779
E7-4820
 2 GHz
 4× QPI 5.86 GT/s
 18 MB
 $1446
E7-2820
 $1334
6 (12)
 E7-4807
 1.86 GHz
 No
 95 W
 4× QPI 4.8 GT/s
 4× DDR3-800
 $890
E7-2803
 1.73 GHz
 105 W
 $774

Gulftown /
Westmere-EP[11]
 DP Server
 2 (4)
 LGA
1366
 Xeon
 X5698[12]
 4.4 GHz
 N/A
 No
 130 W
 2× QPI 6.4 GT/s
 3× DDR3-1333
 12 MB
 Q1 2011
 OEM
6 (12)
 X5690
 3.46 GHz
 Yes
 2011-02-13
 $1663
X5680
 3.33 GHz
 2010-03-16
X5679
 3.2 GHz
 115 W
 2011-02-13
 OEM
X5675
 3.06 GHz
 95 W
 $1440
X5670
 2.93 GHz
 2010-03-16
X5660
 2.8 GHz
 $1219
X5650
 2.66 GHz
 $996
E5649
 2.53 GHz
 80 W
 2× QPI 5.86 GT/s
 2011-02-13
 $774
E5645
 2.4 GHz
 2010-03-16
 $551
L5645
 60 W
 2011-02-13
 OEM
L5640
 2.26 GHz
 2010-03-16
 $996
L5639
 2.13 GHz
 2011-02-13
 OEM
L5638
 2.0 GHz
 2010-03-16
 $958
4 (8)
 X5687
 3.6 GHz
 130 W
 2× QPI 6.4 GT/s
 2011-02-13
 $1663
X5677
 3.46 GHz
 2010-03-16
X5672
 3.2 GHz
 95 W
 2011-02-13
 $1440
X5667
 3.06 GHz
 2010-03-16
X5647
 2.93 GHz
 130 W
 2× QPI 5.86 GT/s
 3× DDR3-1066
 2011-02-13
 $774
E5640
 2.66 GHz
 80 W
 2010-03-16
E5630
 2.53 GHz
 $551
E5620
 2.4 GHz
 $387
L5630
 2.13 GHz
 40 W
 $551
L5618
 1.86 GHz
 $530
4 (4)
 L5609
 1.86 GHz
 No
 2× QPI 4.8 GT/s
 $440
L5607
 2.26 GHz
 80 W
 8 MB
 2011-02-13
 $276
E5606
 2.13 GHz
 $219
L5603
 1.6 GHz
 4 MB
 $188
UP Server
 6 (12)
 Xeon
 W3690
 3.46 GHz
 N/A
 Yes
 130 W
 1× QPI 6.4 GT/s
 3× DDR3-1333
 12 MB
 2011-02-13[13]
 $999
W3680
 3.33 GHz
 2010-03-16[14]
 $999
W3670
 3.20 GHz
 1× QPI 4.8 GT/s
 3× DDR3-1066
 2010-08-29
 $885
Extreme /
Performance
Desktop
 Core i7
Extreme
 990X
 3.46 GHz
 1× QPI 6.4 GT/s
 2011-02-13
 $999
980X
 3.33 GHz
 2010-03-16
Core i7
 980
 1× QPI 4.8 GT/s
 2011-06-26
 $583
970
 3.20 GHz
 2010-07-17
 $583

Clarkdale[15]
 UP Server
 2 (4)
 LGA
1156
 Xeon
 L3406
 2.26 GHz
 N/A
 Yes
 30 W
DMI
 2× DDR3-1066
 4 MB
 2010-03-16
 $189
2 (2)
 L3403
 2.0 GHz
 2010-10
 $
Mainstream /
Value
Desktop
 2 (4)
 Core i5
 680
 3.6 GHz
 733 MHz
 73 W
 2× DDR3-1333
 2010-04-18
 $294
670
 3.46 GHz
 2010-01-07
 $284
661
 3.33 GHz
 900 MHz
 87 W
 $196
660
 733 MHz
 73 W
655K
 3.2 GHz
 2010-05-30
 $216
650
 2010-01-07
 $176
Core i3
 560
 3.33 GHz
 No
 2010-08-29
 $138
550
 3.20 GHz
 2010-05-30
540
 3.06 GHz
 2010-01-07
 $133
530
 2.93 GHz
 $113
2 (2)
 Pentium
 G6960
 533 MHz
 2× DDR3-1066
 3 MB
 2011-01-09
 $89
G6951
 2.8 GHz
 Q3 2010
 OEM
G6950
 2010-01-07
 $87
Celeron
 G1101
 2.26 GHz
 2 MB
 $70
Codename
 Market
 Cores /
Threads
 Socket
 Processor
Branding & model
 Core
 GPU
 Turbo
 TDP
 Chipset
 Memory
 L3
cache
 Release
Date
 Price
Clock rate
 Interfaces


Mobile processors























































































































































































































































































































Codename
 Market
Cores /
Threads
 Processor
Branding & Model
 CPU Clock rate
 GPU Clock rate
Turbo
 TDP
 Memory
L3
cache
 Interface
 Release
Date
 Price
Standard
Turbo
(1C/2C active cores )
Arrandale
 Mainstream /

Value Mobile


 2 (4)
 Core i7
 640M
 2.8 GHz
 3.46/3.2 GHz
 766 MHz
 Yes
 35 W
 2× DDR3-1066
 4 MB
 * DMI
* PCIe 1 x16
* Socket:
µPGA-988 /
BGA-1288
 2010-09-26
 $346
620M
 2.66 GHz
 3.33/3.06 GHz
 2010-01-07
 $332
610E
 2.53 GHz
 3.2/2.93 GHz
660LM
 2.26 GHz
 3.06/2.8 GHz
 566 MHz
 25 W
 2010-09-26
 $346
640LM
 2.13 GHz
 2.93/2.66 GHz
 2010-01-07
 $332
620LM / 620LE
 2.0 GHz
 2.8/2.53 GHz
 $300
680UM
 1.46 GHz
 2.53/2.16 GHz
 500 MHz
 18 W
 2× DDR3-800
 2010-09-26
 $317
660UM / 660UE
 1.33 GHz
 2.4/2.0 GHz
 2010-05-25
640UM
 1.2 GHz
 2.26/1.86 GHz
 2010-01-07
 $305
620UM / 620UE
 1.06 GHz
 2.13/1.76 GHz
 $278
Core i5
 580M
 2.66 GHz
 3.33/2.93 GHz
 766 MHz
 35 W
 2× DDR3-1066
 3 MB
 2010-09-26
 $266
560M
 3.2/2.93 GHz
 $225
540M
 2.53 GHz
 3.06/2.8 GHz
 2010-01-07
 $257
520M / 520E
 2.4 GHz
 2.93/2.66 GHz
 $225
560UM
 1.33 GHz
 2.13/1.86 GHz
 500 MHz
 18 W
 2× DDR3-800
 2010-09-26
 $250
540UM
 1.2 GHz
 2.0/1.73 GHz
 2010-05-25
520UM
 1.06 GHz
 1.86/1.6 GHz
 2010-01-07
 $241
480M
 2.66 GHz
 2.93/2.93 GHz
 766 MHz
 35 W
 2× DDR3-1066
 2011-01-09
 OEM
460M
 2.53 GHz
 2.8/2.8 GHz
 2010-09-26
450M
 2.4 GHz
 2.66/2.66 GHz
 2010-06-26
430M
 2.26 GHz
 2.53/2.53 GHz
 2010-01-07
470UM
 1.33 GHz
 1.86/1.6 GHz
 500 MHz
 18 W
 2× DDR3-800
 2010-10-01
430UM
 1.2 GHz
 1.73/1.46 GHz
 2010-05-25
Core i3
 390M
 2.66 GHz
 n/a
 667 MHz
 No
 35 W
 2× DDR3-1066
 2011-01-09
380M
 2.53 GHz
 2010-09-26
370M
 2.4 GHz
 2010-06-20
350M
 2.26 GHz
 2010-01-07
330M / 330E
 2.13 GHz
380UM
 1.33 GHz
 500 MHz
 18 W
 2× DDR3-800
 2010-10-01
330UM
 1.2 GHz
 2010-05-25
2 (2)
 Pentium
 P6300
 2.26 GHz
 667 MHz
 35 W
 2× DDR3-1066
 2011-01-09
P6200
 2.13 GHz
 2010-09-26
P6100
 2.0 GHz
P6000
 1.86 GHz
 2010-06-20
U5600
 1.33 GHz
 500 MHz
 18 W
 2× DDR3-800
 2011-01-09
U5400
 1.2 GHz
 2010-05-25
Celeron
 P4600
 2.0 GHz
 667 MHz
 35 W
 2× DDR3-1066
 2 MB
 2010-09-26
 $86
P4500 / P4505
 1.86 GHz
 2010-03-28
 OEM
U3600
 1.2 GHz
 500 MHz
 18 W
 2× DDR3-800
 2011-01-09
 $134
U3400 / U3405
 1.06 GHz
 2× DDR3-800 / 1066
 2010-05-25
 OEM


Roadmap


The successor to Nehalem and Westmere is Sandy Bridge.






  • v


  • t | e

  • ve







See also



  • List of Intel CPU microarchitectures

  • Tick-Tock model



References





  1. ^ Valich, Theo (2009-04-16). "Intel says no to 28nm, focuses on 22nm: Ivy Bridge/Haswell & Larrabee". Archived from the original on 2011-07-08. Retrieved 23 March 2015..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ Smalley, Tim (2007-09-19), Westmere is Nehalem's successor, bit-tech.net


  3. ^ Carry-Less Multiplication and Its Usage for Computing The GCM Mode – Intel Software Network, 2008-04-11, retrieved 2009-03-01


  4. ^ Fuad Abazovic (2008-09-16), Westmere 32nm to improve Nehalem features, Fudzilla.com, retrieved 2009-03-01


  5. ^ (PDF) http://software.intel.com/sites/default/files/m/7/c/9/9/c/18976-Nehalem_Uarch_Spring_2008_IDF.pdf. Retrieved January 16, 2013. Missing or empty |title= (help)
    [dead link]


  6. ^ Westmere-EX 10 core CPUs announced by Intel at IDF


  7. ^ Bell, Brandon (2009-02-10), Intel CPU Roadmap 2009–2010, FS Media, Inc, retrieved 2009-03-01


  8. ^ CPU list, archived from the original on 2012-03-01


  9. ^ Westmere-EX: Intel Improves their Xeon Flagship


  10. ^ Intel Launches New Xeon Chips with Up to Ten Cores


  11. ^ Intel pushes workhorse Xeons to six cores


  12. ^ Hilbert Hagedoorn (March 15, 2011). "Intel ships a 4.4GHz Xeon X5698". The Guru of 3D.


  13. ^ Intel Xeon X5690 - AT80614005913AB (BX80614X5690)


  14. ^ Intel Launches Its Most Secure Data Center Processor, archived from the original on 2011-09-29, retrieved 2018-11-18


  15. ^ Intel Clarkdale Processor, XTREVIEW, 2009-02-09, retrieved 2009-03-01




External links



  • Official Intel homepage for Westmere-EP

  • Official Intel homepage for Westmere-EX


  • Westmere-EX: A 20 thread server CPU (PDF)







  • v


  • t | e

  • ve










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