In 2007, Intel unveiled its Core microarchitecture to widespread critical acclaim;[34] the product range was perceived as an exceptional leap in processor performance that at a stroke regained much of its leadership of the field.[35][36] In 2008, Intel had another "tick," when it introduced the Penryn microarchitecture, which was 45 nm. Later that year, Intel released a processor with the Nehalem architecture. Nehalem had positive reviews.[37]