What is the difference between Intel Core i9-9900 and Intel Core i9-9900K?

[Jimie-Tibe]

The question may seem silly, but I'm not good at hardware.

For the purchase, I compared processors and the choice fell between Intel Core i9-9900 and Intel Core i9-9900K.

They are the same in terms of characteristics https://hitesti.com/compare/cpu/intel-core-i9-9900-vs-intel-core-i9-9900k

But the cost is significantly different. Is it worth buying 9900K or is it possible to save money?

A computer is needed for simple office work, working with text or graphics. I plan to master video editing

[AlHill]

They are different:

https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=186605,191789

The biggest difference is that the i9-9900K can be overclocked. 

For what you describe, you do not need the i9-9900K.

Doc (not an Intel employee or contractor)
[Maybe Windows 12 will be better]

[Jimie-Tibe]

Thank you, I do not know what overclocking is, I have heard it a couple of times. That's why I didn't even think of it

[megan3000]

Another difference is that the Core i9-9900 comes with its own fan in the box... on the opposite, for the Core i9-9900K you'll need to spend extra money buying a good high-quality heatsink cooler or water cooler...

Overclocking is most likely done by gamers... but is not a must for games... I don't use overclocking and I play my games smoothly.

I also run virtual machines and write and compile code and haven't had the need to overclock my pc.

If you wish to have a little idea of what overclocking is (just for curiosity), take a look at this:

https://www.youtube.com/watch?v=yyv9Y2miV64

https://www.intel.com/content/www/us/en/gaming/resources/5-reasons-to-overclock-your-next-pc.html