Intel behind the Ivy Bridge?

Intel lag behind the release of Ivy Bridge "3D". X86 processors which send high and mid-range in the first place."Tick" of the development strategy of "Tick-Tock" Intel (alternating new etching technology-Tick-tock, and architecture), Ivy Bridge microprocessors intended for desktop computers are revealed a little more, especially through the documents published by our German colleague Computer Base and repeated in English by X-Bit Labs site.
First, a clear road map as the first Ivy Bridge for PCs arrive in the second quarter 2012 and not March 2012, as was stressed in particular our colleague ITespresso.fr. It should therefore count on a minimum one-month lag to see the first models of Sandy Bridge engraved in 22 nanometers (nm) reach the market.Difficulties in etching 22 nm?
It remains unclear exactly what may be the precise reasons for the delay. We think of course the development fab in technology as advanced as 22 nm but also and especially the new type of gate MOS transistors "3D" (Tri-Gate MOS) used in these chips.
These will be the Core i7-37xx and Core i5-35xx/34xx, then exit the entry-level models Core i3-3200. These will come later. Four physical cores than for these microprocessors with a frequency range from 2.7 GHz for the Core i5-3330 (3.2 GHz Turbo Boost mode) to a maximum of 3.5 GHz for the Core i7-3770k (3 , 9 GHz with Turbo Boost).
Benchmarks compare the performance of a Core i7-3770 to those of a Sandy Bridge Core i7-2600. First of all, it should be borne in mind that the frequency of DDR3 RAM goes from 1333 MHz to 1600 MHz. That said, we see that the change in technology leads to an increase in CPU performance by 17%.Improved graphics performance
It is in graphics performance there is a substantial improvement. The Ivy Bridge will benefit from the HD 4000 Graphics graphics microprocessor compared here to the HD 2000 Graphics. Note nonetheless that the HD 3000 Graphics GPU was already significantly better than the 2000. The HD 4000 Graphics could be based on 16 cores against 12 for the 3000. There will also be a GPU HD 2500 Graphics less efficient in some SoC (system on chip) Ivy Bridge.
Intel did not comment on these documents. It is now awaiting official information from the U.S. including the caster versions ULV (Ultra Low Voltage) of Ivy Bridge bound for laptops.