They have released a process that is worth upgrading to: https://ark.intel.com/products/97129/Intel-Core-i7-7700K-Pro...
https://ark.intel.com/products/52214/Intel-Core-i7-2600K-Pro...
There are a massive host of improvements between those two processors. Each release since Sandy Bridge has continued to increase performance between 5 to 10% in most tasks and more in some specifics. Over 4 releases that is a noticeable effect.
That processor in the US is 350 Dollars.