Many enthusiasts have been eagerly awaiting the next generation of Intel processors to use LGA 2011, which is supposed to be Ivy Bridge-E. Especially after seeing rumors of a 10 core Xeon E5-2600 V2  Ivy Bridge-EP CPU, I think many users expected at least an eight core Ivy Bridge-E part.

Unfortunately, if a slide posted by VR-Zone China is any indication, LGA 2011 users will not be getting an eight core processor any time soon. The slide suggests that Intel will release three new Ivy Bridge-E CPUs in the third quarter of this year (Q3'13). However, the top-end part is merely a six core CPU with slight improvements over the existing Sandy Bridge-E 3960X chip.

Specifically, the slide alleges that the initial Intel release will include the Core i7 4820, Core i7 4930K, and the Core i7 4960X. An Ivy Bridge-E equivalent to the SB-E 3970X is noticeably absent from the lineup along with several of the other rumored (higher core count) chips.

Rumored Ivy Bridge-E chips:

  Clockspeed Core Count L3 Cache Manufacturing Process TDP
Core i7 4960X 3.6GHz (4GHz Turbo) 6 15MB 22nm 130W
Core i7 4930K 3.4GHz (3.9GHz Turbo) 6 12MB 22 130W
Core i7 4820K 3.7GHz (3.9GHz Turbo) 4 10MB 22 130W

Existing Sandy Bridge-E equivalents:

  Clockspeed Core Count L3 Cache Manufacturing Process TDP
Core i7 3960X 3.3GHz (3.9GHz Turbo) 6 15MB 32nm 130W
Core i7 3930K 3.2GHz (3.8GHz Turbo) 6 12MB 32nm 130W
Core i7 3820 3.6GHz (3.8GHz Turbo) 4 10MB 32nm 130W

All of the chips allegedly have 130W TDPs, 40 PCI-E 3.0 lanes, support for quad-channel DDR3-1866 memory, and are built on Intel's 22nm manufacturing process. The low end i7 4820 is a quad core chip clocked at 3.7 GHz base and 3.9 GHz turbo with 10MB L3 cache. The i7 4930K is an unlocked six core part with 12MB L3 cache and clockspeeds of 3.4 GHz base and 3.9 GHz turbo. Finally, the Core i7 4960X is rumored to be the highest-end chip Intel will release (at least, initially). It is also a six core part clocked at 3.6 GHz base and 4 GHz turbo. It has 15MB of L3 cache. These chips are the Ivy Bridge-E equivalents to the 3820, 3930K, and 3960X chips respectively. The new processors feature higher clockspeeds, and are based on 22nm 3D transistor technology instead of SB-E's 32nm manufacturing process. It seems that Intel has extended unlocking to the lower-tier LGA 2011 chip, as it is listed as the Core i7 4820K. Having an unlocked multiplier is nice to see at the low end (the low end of the enthusiast platform, anyway). Curiously, the TDP ratings are the same, however. That suggests that the move to 22nm did not net Intel much TDP headroom, and the higher clocks are bringing them up to similar TDP numbers. At least the TDP ratings are not higher than SB-E, such that you motherboard and HSF should have no problems accepting an IVB-E CPU upgrade (with a BIOS update, of course).

It will be interesting to see how the new Ivy Bridge-E chips stack up, especially considering Intel may also be unveiling the consumer-grade Haswell processor this year. On one hand, Ivy Bridge-E offers up a CPU upgrade path for existing systems, but on the other hand pricing and the performance of Haswell (and lack of higher core count Ivy Bridge-E chips like previous rumors suggested) may see enthusiasts instead opt for a motherboard+CPU overhaul instead of simply recycling the LGA 2011/X79 motherboard. At this point, if this new slide holds true it appears that Ivy Bridge E/LGA 2011 will become even more of a niche solely for workstations that need the extra PCI-E lanes and quad channel memory. I say this as someone running a Lynnfield system who is itching for an upgrade and torn on going for the enthusiast platform or waiting for Haswell.

What do you think about the rumored Ivy Bridge-E chips, are they what you expected? Do you think they will be worth a CPU upgrade for your LGA 2011-based system or are you leaning towards Haswell?

Read more about Ivy Bride-E at PC Perspective, including: Ivy Bridge-E after Haswell: I think I've gone cross-eyed.