For its most powerful Haswell-E based processors Intel will use Soldered TIM based on a strong epoxy. OCDrift discovered that when they removed (read forced off) the heatspreader. Beneath the adhesive layer that secure the IHS to the package, Intel soldered the chip’s die to the IHS with a strong epoxy.
As OCDrift reports; this is a good news for overclockers, simply because soldering the CPU die to the IHS allows for much better heat conductivity than if the gap was to be filled with thermal interface material (TIM) like we’ve seen on the Core i7-3770K, 4770K, and 4790K.
Haswell-E is expected to be released in September 2014, and the rumoured specifications suggested that the top model namely the Core i7-5960X will have 8 cores, 16 threads and clocked at 3.0GHz with a 3.3GHz Turbo peak.
Now the question begs, who the heck did they get that processor from ? :)
Intel Core i7-5960X De-Lidded Haswell-E Uses Soldered TIM