The fastest of the Ice Lake U comes with a base clock of 2.3Ghz, and with the magic of Turbo, this 28W processor reaches 4.1GHz. Core i7 1068G7 comes with the TDP of 28W.  

The Ice Lake Y comes with a TDP of 9W, and a base clock of 1GHz and maximal Turbo for Core i7 1060G7 is 3.8GHz.

Now the Tiger Lake U comes with significant advances. Instead of Gen 11 graphics, it comes with Xe (Gen 12) new graphics core. The number of EUs might increase by 1.5x from 64 to 96, supporting HDMI 2.1 and PCIe 4.0.  

It also comes with new Willow Cove cores and up to 50 percent larger Level 3 cache. The L3 cache size grows to 3MB per core instead of 2MB with Sunny Cove.

The 3GHz base clock, four cores, and eight threads at 10nm+ sounds like a major advancement. The new GPU with more EUs and new architecture should bring better performance too.

Core i7 1185G7 is the name leaked in the 3Dmark performance database, and the first test indicates that Intel’s new CPU is about five percent faster than AMD Ryzen 7 4800U powered by Radeon Vega (facepalm). The leaked score comes from a prototype, and once Tiger Lake launches, performance is likely to go up.  

From a few conversations we had with people close to the matter, Tiger Lake is the next major step in Intel’s notebook evolution, and the expectations from it are high.