Intel 13th Gen Raptor Lake CPUs have just been announced and they are already available for pre-order. Intel has increased the number of cores by up to 8 compared to the previous generation. Here are the links to where you can pre-order the Intel 13th Gen Raptor Lake CPUs.
Intel 13th Gen Pre-Order Links

Intel Core i9-13900K
The Intel Core i9-13900K is the top-of-the-line CPU that Intel has to offer right now. It comes with a total of 24 cores, 8 of which are performance cores and the remaining 16 are efficiency cores. So you get 8 more cores compared to the previous generation of CPUs.

The Intel 13th gen Raptor Lake CPU also features a total of 68 MB of combined L2 and L3 cache. It has a max boost clock speed of 5.8 GHz. The performance cores have a base clock speed of 3 GHz while the efficiency cores have a base clock speed of 2.2 GHz. This is an unlocked CPU so you can overclock it to get additional performance out of the box and it comes with Intel UHD Graphics 770. The CPU supports both DDR4 and DDR5 memory.
You can use the following links to pre-order the Intel Core i9-13900K:
Intel Core i9-13900KF
Intel Core i9-13900KF has similar specifications to the Intel Core i9-13900K but this SKU does not come with the Intel UHD Graphics 770 so you will need a dedicated graphics card for video output. This is still an unlocked CPU so you can overclock it.
Intel Core i7-13700K
The Intel Core i7-13700K is also an unlocked CPU that comes with 16 cores. 8 of which are performance cores, while the remaining 8 are efficiency cores. The max boost clock speed of the CPU is 5.4 GHz. The performance cores have a base clock speed of 3.4 GHz while the efficiency cores have a base clock speed of 2.5 GHz.

Intel Core i7-13700K has a total of 54MB cache divided into L3 and L2. It comes with Intel UHD Graphics 770 and supports both DDR4 and DDR5 memory. You can use the following links to pre-order the CPU:
Intel Core i7-13700KF
The Intel Core i7-13700KF is similar to the Intel Core i7-13700K but this SKU does not come with the Intel UHD Graphics 770 so you will need a dedicated graphics card for video output. This is still an unlocked CPU so you can overclock it.
Intel Core i5-13600K
The Intel Core i5-13600K features 14 cores in total, 6 of which are performance cores while the remaining 8 are efficiency cores. It has a max boost clock speed of 5.1 GHz. The performance cores have a base clock speed of 3.5 GHz while the efficiency cores have a base clock speed of 2.6 GHz.

It comes with Intel UHD Graphics 770 and supports both DDR4 and DDR5 memory. You can use the following links to pre-order the CPU:
Intel Core i5-13600KF
The Intel Core i5-13600KF has the same specifications as the Intel Core i5-13600K but this SKU does not come with integrated graphics. You can still overclock it. Use the following links to buy one:
These are the links from where you can pre-order the new Intel 13th Gen Raptor Lake CPUs. You can also pre-order Z790 motherboards for the Intel 13th Gen Raptor Lake CPUs.