Spyware and viruses can be very harmful to a computer's overall performance, and although virus scanners and other utility programs can help to remove these malicious items, they are not always successful. The moral of this story is that fragmentation is a good and necessary thing. Some SATA II and later hard disk drives support staggered spin-up, allowing the computer to spin up the drives in sequence to reduce load on the power supply when booting. However, reformatting a hard drive deletes all files on a computer, including the harmful ones, and returns the system to peak performance. Using a faster disk, such as an SSD, will typically give you better read and write performance compared to an older HDD, but how does this affect PC gaming? Disk -- Because of the limited page fault activity, disk I/O bandwidth would be minimally impacted To keep your PC’s hard drive working at maximum efficiency, it should be regularly defragmented. When you load a compressed file, the CPU has to do more work decompressing it. Two major factors that impacts computer performance related to the hard disk drive are how the file is/files are scattered across the hard drive (known as fragmenting) and the location on the drive. Such a feature greatly improves disk performance. However, that compressed file is smaller on the disk, so your computer can load the compressed data from disk faster. Freeing up disk space does not speed up computers, but reduces file fragmentation chances. Well, that depends. The hard disk performance directly affects everything else on the computer and is therefore the weakest link. Now in other aspects it can. [45] Most hard disk drives today support some form of power management which uses a number of specific power modes that save energy by reducing performance. In fact frame rates are hardly effect your frame rates. 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