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)
Core i9-10850K Desktop Processor 10 Cores up to 5.2 GHz Unlocked LGA1200 Intel 400 Series chipset 125W BX8070110850K - Best Buy
Amazon.com: Intel® Core™ i9-10850K Desktop Processor 10 Cores up to 5.2 GHz Unlocked LGA1200 (Intel® 400 Series chipset) 125W : Electronics
Conclusion: Bin to Win - Intel Core i9-10850K Review: The Real Intel Flagship
Intel Core i9-10850K Review - Just as Good as the i9-10900K - Compression & Encryption | TechPowerUp
Intel Core i9-10850K vs Intel Core i9-10900K: What is the difference?