Pentium Dual Core 2129Y 1.1GHz is an ULV, Dual-Core processor for ultrabooks and tablets, based on the 22nm, Ivy Bridge micro-architecture.
Though based on the Ivy Bridge architecture, most of its features, including important ones, such as Turbo Boost and Hyper-Threading are deactivated. It offers 2MB of L3 Cache and integrated graphics called Intel HD 2500, clocked at 350 MHz (up to 850MHz in Turbo Mode). The Memory Controller supports DDR3-1600L and DDR3-1600 memory types. It should consume no more than 10 Watt.
Its performance is below the average in terms of gaming purposes but it's quite good for its original purpose.