Tom's Hardware - This chart sums up the situation with Core i9-10850K nicely: The stock Core i9-10850K and Core i9-10900K offer the same performance when calculated as an overall measure (geometric mean)
The results of benchmark tests with more than 60 types of NVIDIA, AMD, and Intel GPUs will be released - GIGAZINE
New CPU Testing Methodology for 2019 & Ryzen 3000 Prep | GamersNexus - Gaming PC Builds & Hardware Benchmarks