https://wccftech.com/intel-tiger-lake-u-15w-4-core-cpu-performance-benchmarks-specs-leak/

With 2020 approaching soon, Intel's Tiger Lake 10nm++ CPUs have started getting various leaks. The latest leak comes from Chinese tech portal, Zhihu, where a user has posted the performance metrics of a Tiger Lake-U engineering sample along with its specifications, showing a big increase to the clock speeds compared to Intel's Ice Lake processors.

The chip that has been tested is said to be a Tiger Lake-U part with ES2 marking. This is the second engineering revision of the Tiger Lake-U chips that are expected to roll out in 2020. The chip has a total of 4 cores and 8 threads and is said to feature a single-core boost 4.30 GHz and a multi-core boost of 4.00 GHz. There's no other information such as cache and iGPU mentioned for this but the Tiger Lake-U CPU was compared against an Ice Lake-U processor.