Here are the best processors for the performance / price ratio:
This is the Geekbench 4 performance divided by the price of new products.
Old processors in the first results
There are many old processors that will have a hard time running a recent game. But that will be fine for word processing, for the pack office. They benefit from the best performance / price ratio. Among them, there are in decreasing order: the Intel Pentium G4400, the AMD FX-8320, the AMD FX-8300, the AMD FX-6300, the AMD FX-9590, the AMD FX-8350, the Intel Pentium G4500, the Intel Core 2 Duo E8400, the Intel Core Q9550, the AMD FX-6350, the Intel Pentium G4560 and the AMD FX-8370.
The coffee lake
These are the latest processors in date. They can run a game in average quality for the Intel Core i3-8100, the Intel Core i3-8350K, in high quality for the Intel Core i5-8600K, the Intel Core i5-8400, the Intel Core i7-8700 and the Intel Core i7-8700K.
The Ryzen are the latest processors that get the best results, with the most fairplay prizes. First of all the AMD Ryzen 3 1200, the AMD Ryzen 5 1600, the AMD Ryzen 5 1500X, the AMD Ryzen 7 1700 which is undoubtedly the most interesting of this top, the AMD Ryzen 5 1600X, the AMD Ryzen 5 1400, the AMD Ryzen 7 1700X, and the AMD Ryzen 7 1800X.
For the game
We first have the Intel Core i7-7700K which is already the reference since early 2017, then the Intel Core i7-7740X which brings a slight plus. Finally the Intel Core i7-8700K which is now what is best in terms of processor for the game.
Kaby Lake-X vs Threadripper
What we note is that the Intel Core i9-7900X finally has a better ratio than the AMD Ryzen Threadripper 1950X, for a performance also higher. Next come the AMD Ryzen Threadripper 1920X, Intel Core i9-7920X, Intel Core i9-7960X, Intel Core i9-7940X, and Intel Core i9-7980XE.