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Ivy Bridge (microarchitecture)

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Ivy Bridge
General information
Launched2011
Performance
Max. CPU clock rate2.5 GHz to 3.5 GHz
Architecture and classification
Technology node0.2nm
Physical specifications
Cores
  • 2-4
Products, models, variants
Brand name
History
PredecessorSandy Bridge
SuccessorHaswell

Ivy Bridge is the codename for Intel's 22 nm die shrink of the Sandy Bridge microarchitecture based on tri-gate ("3D") transistors. Ivy Bridge processors will be backwards-compatible with the Sandy Bridge platform, but might require a firmware update (vendor specific),[1][2]. Intel has released new 7-series Panther Point chipsets with integrated USB 3.0 to complement Ivy Bridge.[3]

Intel announced that it had begun volume production of Ivy Bridge chips in the third quarter of 2011[4], and sources were specifying the 29th of April 2012 as the availability date[5], though now it is thought that Ivy Bridge will launch on 23 April[6]. In February 2012, it was reported that Intel would postpone the launch of the dual-core mobile CPUs (not desktop CPUs or quad-core mobile CPUs) to June 2012 to allow more time to sell surplus inventory of Sandy Bridge CPUs, which accumulated due to slower than expected computer sales.[7]

Features

Ivy Bridge feature improvements over Sandy Bridge include:[8][9]

Thermal design power (TDP), according to an October 2011 leaked Intel roadmap, will come in 77/65/55/45/35 W options for desktop processors,[17] while Intel says that mobile processors will use Configurable TDP.[18]

Performance

Compared to Sandy Bridge (according to sources):

  • 5% to 15% increase in CPU performance[19]
  • 20% to 50% increase in integrated GPU performance[19]

Specification comparison

Ivy Bridge Sandy Bridge (previous microarchitecture)
Die Code Name Cores Cache GPU EUs Transistor count Die size Sockets Die Code Name Cores Cache GPU EUs Transistor count Die size Sockets
Ivy Bridge-M-2 2 3MB[20] 8 LGA 1155,
rPGA988B,
BGA-1224,
BGA-1023 		Sandy Bridge-M-2 2 3MB 6 504 million 131 mm2 LGA 1155,
rPGA988B,
BGA-1224,
BGA-1023
Ivy Bridge-H-2 2 4MB 16 Sandy Bridge-H-2 2 4MB 12 624 million 149 mm2
Ivy Bridge-HE-4 4 8MB 16 1.4 billion[21] 160 mm2[22] Sandy Bridge-HE-4 4 8MB 12 995 million[23] 216 mm2
Ivy Bridge-HM-4 4 6MB[20] 8 Sandy Bridge-EP-4 4 10MB N/A 1.27 billion[24] 294 mm2 LGA 2011
Sandy Bridge-EP-8 6∗/8 20MB N/A 2.27 billion[25] 435 mm2

∗ 8-core with cores disabled for yield purposes.[26]

List of Ivy Bridge processors

1Processors featuring Intel's HD 4000 graphics are set in bold. Other processors feature HD 2500 graphics or no graphics core (indicated by Graphics Clock rate N/A).

Desktop processors

[27]

Target
segment 		Cores
(Threads) 		Processor
Branding & Model 		CPU Clock rate Graphics Clock rate L3
Cache 		TDP Release
Date 		Price
(USD) 		Motherboard
Normal Turbo Normal Turbo Socket Interface Memory
Performance 4 (8) Core i7 3770K 3.5 GHz 3.9 GHz 650 MHz 1150 MHz 8 MB 77 W 2012-4-29 $313 LGA
1155 		DMI 2.0
PCIe 3.0∗ 		Up to dual
channel
DDR3-2800
3770 3.4 GHz $278
3770S 3.1 GHz 65 W $278
3770T 2.5 GHz 3.7 GHz ? W $278
Mainstream 4 (4) Core i5 3570K 3.4 GHz 3.8 GHz 6 MB 77 W $212
3570 $
3570S 3.1 GHz W $
3570T 2.3 GHz 3.3 GHz W $
3550 3.3 GHz 3.7 GHz 77 W 2012-4-29 $194
3550S 3.0 GHz ? W $194
3475S 2.9 GHz 3.6 GHz 1100 MHz $
3470 3.2 GHz 77 W $
3470S 2.9 GHz ? W $
2 (4) 3470T 3 MB 35 W Q3 2012[28] $
4 (4) 3450 3.2 GHz 3.5 GHz 6 MB 77 W 2012-4-29 $174
3450S 2.8 GHz ? W $174
3330 3.0 GHz 3.2 GHz 1050 MHz 77 W $
3330S 2.7 GHz W $
2 (4) Core i3 3240 3.4 GHz N/A 3 MB 55 W Q3 2012 $ DMI 2.0
3225 3.3 GHz $138
3220 3.3 GHz $

∗ Requires a compatible Motherboard

Suffixes to denote:

  • K - Unlocked (adjustable CPU multiplier up to 63 bins)
  • S - Performance-optimized lifestyle (low power with 65W TDP)
  • T - Power-optimized lifestyle (ultra low power with 35-45W TDP)

Mobile processors

Turbo bins main article: List of Core i7, List of Core i5,List of Core i3

Target
segment 		Cores
(Threads) 		Processor
Branding & Model 		Programmable TDP Graphics Clock rate L3
Cache 		Release
Date 		Price
(USD)
cTDP down Nominal TDP cTDP up Normal Turbo
Performance 4 (8) Core i7 3920XM ?W / ?GHz 55W / 2.9GHz 65W / 3.8GHz 650 MHz 1300 MHz 8 MB April 29th 2012 $1096[29]
3820QM 45W / 2.7GHz ?W / 3.7GHz 1250 MHz $568[30]
3720QM 45W / 2.6GHz ?W / 3.6GHz 6 MB $378[30]
3615QM 2.3 GHz ?? MHz TBD OEM
3612QM 2.1 GHz 3.10 GHz
3610QM 2.3 GHz 3.3 GHz
Mainstream 2 (4) 3667U 14W / ?GHz 17W / 2.0GHz 25W / 3.2GHz 350 MHz 1150 MHz 4 MB June 3rd 2012 $
3517U 14W / ?GHz 17W / 1.9GHz 25W / 2.4GHz OEM
3520M 35W / 2.9GHz ?W / 3.6GHz 650 MHz 1250 MHz $
Core i5 3427U 14W / ?GHz 17W / 1.8GHz 25W / 2.8GHz 350 MHz 1150 MHz 3 MB $
3317U 14W / ?GHz 17W / 1.7GHz 25W / 2.6GHz 1050 MHz $
3360M 35W / 2.8GHz ?W / 3.5GHz 650 MHz 1200 MHz $
3320M 35W / 2.6GHz ?W / 3.3GHz $
Core i3 3217U 14W / ?GHz 17W / 1.8GHz — 350 MHz 1050 MHz OEM
3317U 14W / ?GHz 17W / 1.7 GHz
  • M - Mobile processor
  • Q - Quad-core
  • U - Ultra-low power
  • X - 'Extreme'


Haswell

Intel demonstrated the Haswell architecture in September 2011, planned for release in 2013 as the successor to Sandy Bridge and Ivy Bridge.[31]

See also

References

[32]

  1. ^ Cole (May 27, 2011). "Ivy Bridge's Backwards Compatibility Explained". Retrieved November 11, 2011.
  2. ^ LG Nilson (February 5, 2011). "Ivy Bridge should work in H67 and P67 motherboards". VR-Zone Technology beats. Retrieved November 12, 2011.
  3. ^ Anand Lal Shimpi (June 1, 2011). "Correction: Ivy Bridge and Thunderbolt - Featured, not Integrated". AnandTech. Retrieved November 11, 2011.
  4. ^ Gruener, Wolfgang (2011-10-19). "Intel to Sell Ivy Bridge Late in Q4 2011". Tom's Hardware. Retrieved 2011-11-11.
  5. ^ "Revised Ivy Bridge launch schedule". CPU World. Retrieved 24th March 2012. {{cite news}}: Check date values in: |accessdate= (help)
  6. ^ "Intel expected to bring forward the launch of Ivy Bridge". Digitimes. 12 April 2012. Retrieved 15 April 2012.
  7. ^ Matthew DeCarlo (2012-02-21). "Ivy Bridge delay rumors exaggerated, i5-3570K sample benched early". Techspot.
  8. ^ Webster, Clive (2011-10-10). "Ivy Bridge Media Upgrades and Security Features". bit-tech. Dennis Publishing Limited.
  9. ^ Shvets, Gennadiy (2011-11-27). "Ivy Bridge desktop CPU lineup details". CPU World.
  10. ^ "Intel Reinvents Transistors Using New 3-D structure". Intel. Retrieved 2011-05-04.
  11. ^ Delahunty, James (2011-03-30). "Intel Ivy Bridge chips feature PCI Express 3.0". After Dawn News. Retrieved 2011-11-11.
  12. ^ a b "Ivy Bridge Overclocking: Ratio Changes Without Reboot, More Ratios and DDR3-2800". Retrieved 21 February 2012.
  13. ^ "Ivy Bridge processors". Ivy Bridge Laptops. 18 January 2012. Retrieved 3 March 2012.
  14. ^ a b Vättö, Kristian (2011-05-06). "Intel's Roadmap: Ivy Bridge, Panther Point, and SSDs". AnandTech. Retrieved 2011-11-11.
  15. ^ Taylor, Greg; Cox, George (2011). "Behind Intel's New Random-Number Generator". Spectrum. IEEE. {{cite web}}: Unknown parameter |month= ignored (help)
  16. ^ "Bull Mountain Software Implementation Guide". Intel. 2011-06-12. Retrieved 2011-12-04.
  17. ^ Nilson, LG (2011-10-18). "Ivy Bridge to have 77W max TDP, backwards and forwards compatibility explained". VR-Zone Technology beats. Retrieved 2011-11-12.
  18. ^ Karmehed, Anton (2011-05-31). "Intel Ivy Bridge gets variable TDP and Thunderbolt". NHW.
  19. ^ a b http://www.anandtech.com/show/5626/ivy-bridge-preview-core-i7-3770k/
  20. ^ a b Ivy Bridge Modular Design, Hiroshige Goto 2/22/2012
  21. ^ Ivy Bridge: 1.4B Transistors
  22. ^ Intel Reveals More Details of Ivy Bridge Variants at ISSCC, Tom's Hardware Guide 2/21/2012
  23. ^ Counting Transistors: Why 1.16B and 995M Are Both Correct, by Anand Lal Shimpi on 14/9/2011, www.anandtech.com
  24. ^ http://www.anandtech.com/show/5276/intel-core-i7-3820-review-285-quadcore-sandy-bridge-e
  25. ^ Xie Ping. "第3页：Sandy Bridge-E架构Core i7型号". INPAI.com.cn website (in Chinese). Retrieved November 14, 2011.[verification needed]
  26. ^ http://www.brightsideofnews.com/news/2011/3/30/intels-next-gen-platforms-leaked-lga-13562c-lga-20112c-z682c-x79-chipsets.aspx
  27. ^ http://vr-zone.com/articles/intel-cuts-desktop-ivy-bridge-cpu-pricing-ahead-of-launch/15557.html
  28. ^ http://vr-zone.com/articles/ivy-bridge-desktop-core-i3-cpus-won-t-arrive-until-q3/15541.html
  29. ^ "i7-3920XM specs".
  30. ^ a b Slivka, Eric (28 December 2011). "Ivy Bridge Processors Launching as Early as April 8?". MacRumors. Retrieved 21 February 2012.
  31. ^ Haswell chip completes Ultrabook 'revolution' (September 14, 2011). The Circuits Blog. CNET.com http://news.cnet.com/8301-13924_3-20106098-64/haswell-chip-completes-ultrabook-revolution/. Retrieved November 11, 2011. {{cite news}}: Missing or empty |title= (help)
  32. ^ Slivka, Eric. "Ivy Bridge Quad-Core Desktop and Mobile Processors". Reportedly Launching on April 29. MacRumors. Retrieved 30 March 2012.
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