A supposed Intel powerpoint slide got leaked with some details on the company's upcoming low-powered Ivy Bridge processors, designated as "Y" variants scheduled for a Q1 2013 release. Similar to Intel's next-generation Haswell processors, some of the new Ivy Bridge chips consume lesser power than current models, boasting a TDP of only 10W. The Core i7-3689Y will be the most powerful CPU of the lineup with only two cores at 1.5GHz, but takes only 13W of power. Hyper Threading is enabled with up to four threads, along with 4MB L3 cache and a maximum of 2.6GHz at Turbo Boost. The 1GHz P-2129Y Pentium is among the least power-hungry of the bunch at 10W, but as expected is hindered with no other extras apart from being a dual core with embedded graphics support. The Ivy Bridge "Y" chips are speculated to be targeted primarily for the ultrabook market, and are considered to be the stopgap until the 22nm Haswell architecture makes its way to consumers.