35W Quad-Core Intel Ivy Bridge Intel CPUs for OEMs Detailed
These ones are aimed at OEMs, so they didn't make it onto Intel's official price list (and won't, since their kind usually doesn't), hence the mystery surrounding them.
That didn't stop people from snooping around, though, not with these being quad-core models with TDP (thermal design power) of 35W.
Intel hasn't confirmed any of this, of course, but signs do suggest these are the fabled 35W models.The items have the names of Core i7-3615QM, Core i7-3612QM and Core i7-3610QM. They are similar to the Core i7-2630QM