Maximize your PC's performance with the perfect CPU! Take for example, Intel's Core i9 11900K. This is an eight core CPU with 16 threads that runs it up to 5.3 gigahertz. That's the turbo speed of course. Its base frequency is just 3.5. Meanwhile, the Core i7 11700K is also an eight core 16 thread CPU that only runs at up to 5 gigahertz. Meaning that the real world performance between these two chips is 6% at most. There's more to picking a CPU than raw power however. Sometimes you want integrated graphics. Sometimes you want more or faster PCI Express lanes.