A computer basically has 4 or 5 levels of Memory the data has to go through before it reaches the CPU.
The Hard Drive is the slowest part in your PC. The amount of bandwidth a Hard Drive can actually move isn't much in comparison to the RAM. SSD's do wonders here and this is why they are so effective. There such a thing as a hard drive being too fast in certain situations. This is why you will barely notice a difference between a Traditional 2.5" SSD and an NVMe SSD when you boot the PC or load a simple program, despite the NVMe SSD being 6 times faster. The only people who truly benefit from Ultra fast storage are the ones saving and loading huge files like 4k videos. A Traditional SSD is 3 to 4 times faster than a Mechanical Hard Drive.
Sometimes it isn't always the Hard Drive that causes the PC to run slow. It can be a bad internet connection, too many programs being open or Malware. If you have too many programs running or a program that consumes a lot of processing power, then you might Run out of RAM.
What causes Lag is some part or connection being maxed out at 100%. If you have terrible Internet service then it's bandwidth would get maxed out. If you're connected to a slow website then that site would get maxed out. The CPU, RAM, or Hard Drive running at 100% can cause the system to Lag.
· 11 months ago