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Ivy Bridge (microarchitecture)

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Ivy Bridge is the codename for Intel's 22 nm die shrink of the Sandy Bridge microarchitecture. The first to use tri-gate ("3D") transistors, Ivy Bridge processors will be backwards-compatible with the Sandy Bridge platform requiring only a BIOS/firmware update.[1][2] Intel also plans a new 7-series Panther Point chipsets with Ivy Bridge that will come with integrated USB 3.0.[3]

Intel announced that it had begun production of Ivy Bridge chips in volume in the third quarter of 2011, in preparation for the product launch.[4][5] It planned to begin sale of the processors to middlemen in the last quarter of 2011,[6] with retail availability from April 2012[7] and one source specifying April 8.[8]

Technology

Ivy Bridge feature improvements over Sandy Bridge were expected to include:[9][10]

Thermal design power (TDP), according to an October 2011 leaked Intel roadmap, will come in 77/65/55/45/35W options for desktop processors,[16] while Intel says that mobile processors will use variable TDP (for example TDP of 15W, which automatically rises to 35W when the laptop is plugged into a docking bay; with a corresponding rise in performance).[17]

Performance

Intel's performance targets (compared to Sandy Bridge):[18]

  • Up to 20% increase in CPU performance.
  • Up to 30% increase in integrated GPU performance.

CPU specification comparison

Sandy Bridge Ivy Bridge
Socket Cores Transistor count Die size Socket Cores Transistor count Die size
LGA 1155 4 995 Million[19] 216 mm2 LGA1155 4 1.4 billion[20] ~172 mm2[21]
2 (6 EUs) 504 Million 131 mm2
2 (12 EUs) 624 Million 149 mm2
LGA 2011 4 1.27 billion[22] 294 mm2
6∗/8 2.27 billion[23] 435 mm2

∗ 8-core with cores disabled for yield purposes.[24]

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 (Graphics Clock rate indicated by N/A).

Desktop processors

CPU World: Ivy Bridge Desktop CPU Lineup Details, Part II
CPU World: Prices of Ivy Bridge desktop CPUs
AnandTech: Ivy Bridge Desktop Lineup

Target
segment 		Cores
( HT ) 		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 (Yes) Core i7 3770K 3.5 GHz 3.9 GHz 650 MHz 1150 MHz 8 MB 77 W 2012-4-8 $332 LGA
1155 		DMI 2.0
PCIe 3.0∗ 		Up to dual
channel
DDR3-1600
3770 3.4 GHz $294
3770S 3.1 GHz 65 W $294
3770T 2.5 GHz 3.7 GHz 45 W $294
Mainstream 4 (No) Core i5 3570K 3.4 GHz 3.8 GHz 6 MB 77 W $225
3570 $
3570S 3.1 GHz 65 W $
3570T 2.3 GHz 3.3 GHz 45 W $205
3550 3.3 GHz 3.7 GHz 77 W $205
3550S 3.0 GHz 65 W $205
3475S 2.9 GHz 3.6 GHz 1100 MHz $
3470 3.2 GHz 77 W $
3470S 2.9 GHz 65 W $
2 (Yes) 3470T 3 MB 35 W 2012-5-6[25] $184
4 (No) 3450 3.2 GHz 3.5 GHz 6 MB 77 W 2012-4-8 $184
3450S 2.8 GHz 65 W $184
3330 3.0 GHz 3.2 GHz 1050 MHz 77 W $
3330S 2.7 GHz 65 W $

∗ Requires a 75/77-series Motherboard

Suffixes to denote:

  • K - Unlocked (adjustable CPU ratio 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

Eight mobile Ivy Bridge processors revealed Details of embedded and OEM mobile Ivy Bridge CPUs


Target
segment 		Cores
(Threads) 		Processor
Branding & Model 		CPU Clock rate Graphics Clock rate L3
Cache 		TDP Release
Date 		Price
(USD)
Normal Turbo Normal Turbo
Performance 4 (8) Core i7 3920XM 2.9 GHz 3.8 GHz 650 MHz 1300 MHz 8 MB 55 W April 2012 $
3820QM 2.7 GHz 3.7 GHz 1250 MHz 45 W $568[26]
3720QM 2.6 GHz 3.6 GHz 6 MB $378[27]
3615QM 2.3 GHz 3.3 GHz ?? MHz TBD OEM
3612QM 2.1 GHz 3.1 GHz 35 W
3610QM 2.3 GHz 3.3 GHz 45 W
Mainstream 2 (4) 3667U 2.0 GHz 3.0 GHz (2 cores) 3.2 GHz (1 core) 350 MHz 1150 MHz 4 MB 17 W 2012-5-6 $
3520M 2.9 GHz 3.6 GHz 650 MHz 1250 MHz 35 W $
Core i5 3427U 1.8 GHz 2.6 GHz (2 cores) 2.8 GHz (1 core) 350 MHz 1150 MHz 3 MB 17 W $
3360M 2.8 GHz 3.5 GHz 650 MHz 1200 MHz 35 W $
3320M 2.6 GHz 3.3 GHz $
  • M - Mobile processor
  • Q - Quad-core
  • U - Ultra-low power
  • X - 'Extreme'


Successor

Intel demonstrated the Haswell architecture in September 2011, planned for release in 2013 as the successor to Sandy Bridge and Ivy Bridge.[28]

References

  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. ^ "Intel's CEO Discusses Q3 2011 Results - Earnings Call Transcript".
  5. ^ Barak, Sylvie (2011-10-21). "Intel Ivy Bridge CPUs may launch in March". EE Times. Retrieved 2011-11-11.
  6. ^ Gruener, Wolfgang (2011-10-19). "Intel to Sell Ivy Bridge Late in Q4 2011". Tom's Hardware. Retrieved 2011-11-11.
  7. ^ Shvets, Gennadiy (2011-11-24). "Launch dates of Ivy Bridge processors". Retrieved 2011-12-04.
  8. ^ "Intel's CEO Discusses Q3 2011 Results - Earnings Call Transcript".
  9. ^ Webster, Clive (2011-10-10). "Ivy Bridge Media Upgrades and Security Features". bit-tech. Dennis Publishing Limited.
  10. ^ Shvets, Gennadiy (2011-11-27). "Ivy Bridge desktop CPU lineup details". CPU World.
  11. ^ "Intel Reinvents Transistors Using New 3-D structure". Intel. Retrieved 2011-05-04.
  12. ^ Delahunty, James (2011-03-30). "Intel Ivy Bridge chips feature PCI Express 3.0". After Dawn News. Retrieved 2011-11-11.
  13. ^ a b Vättö, Kristian (2011-05-06). "Intel's Roadmap: Ivy Bridge, Panther Point, and SSDs". AnandTech. Retrieved 2011-11-11.
  14. ^ Taylor, Greg; Cox, George (2011). "Behind Intel's New Random-Number Generator". Spectrum. IEEE. {{cite web}}: Unknown parameter |month= ignored (help)
  15. ^ "Bull Mountain Software Implementation Guide". Intel. 2011-06-12. Retrieved 2011-12-04.
  16. ^ 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.
  17. ^ Karmehed, Anton (2011-05-31). "Intel Ivy Bridge gets variable TDP and Thunderbolt". NHW.
  18. ^ LG Nilson (February 3, 2011). "Ivy Bridge to have 20 percent performance advantage over Sandy Bridge". VR-Zone Technology beats. Retrieved November 12, 2011.
  19. ^ Counting Transistors: Why 1.16B and 995M Are Both Correct, by Anand Lal Shimpi on 14/9/2011, www.anandtech.com
  20. ^ Ivy Bridge: 1.4B Transistors
  21. ^ Intel Mobile Ivy Bridge CPU Pictured, Compared with Sandy Bridge , by Hardcore-Hardware 3/9/2011
  22. ^ http://www.anandtech.com/show/5276/intel-core-i7-3820-review-285-quadcore-sandy-bridge-e
  23. ^ 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]
  24. ^ http://www.brightsideofnews.com/news/2011/3/30/intels-next-gen-platforms-leaked-lga-13562c-lga-20112c-z682c-x79-chipsets.aspx
  25. ^ http://www.fudzilla.com/home/item/25764-intel%E2%80%99s-first-22nm-dual-core-desktop-in-may
  26. ^ http://www.macrumors.com/2011/12/28/ivy-bridge-processors-launching-as-early-as-april-8/
  27. ^ http://www.macrumors.com/2011/12/28/ivy-bridge-processors-launching-as-early-as-april-8/
  28. ^ 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)
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