Practical Example: Which Desktop to Buy?

Scenario: Johnny, a heavy computer gamer, wants to purchase a desktop that will run high-quality video games smoothly, without games freezing or suddenly crashing. Which of these 3 desktops should Johnny consider buying, and why?

	Desktop №1	Desktop №2	Desktop №3
Display	23'', LCD, 16:10, 3840 x 2160	20.5'', LED, 16:9, 2560 x 1440	27'', Curved, 21:9, 1920 x 1200
CPU	Intel i7, 4.3 GHz, 20 cores, 28 threads	AMD Ryzen 9, 4.9 GHz, 16 cores, 32 threads	Intel i9, 3.2 GHz, 24 cores, 32 threads
Cache	64KB L1, 28MB L2, 33MB L3	256KB L1, 4MB L2, 68MB L3	128KB L1, 20MB L2, 24MB L3
RAM	3200 MHz, 16GB, DDR4, 2Rx8	1700 MHz, 8GB, DDR3, 1Rx16	5600 MHz, 64GB, DDR5, 1Rx8
Storage	7000 RPM SATA 2TB HDD	SAS 850GB SSD	6500 RPM SCSI 1TB HDD

The above table contains so many details! We first need to explain what they mean before advising anything to Johnny.