TESTA A measure of how quickly multiple small files can be read from a device.
4K random read is a disk access pattern whereby small (4K) blocks of data are read from random locations on the surface of the device being tested at a queue depth of one. The term is used primarily within the context of benchmarking and the speed which it is usually measured in, MBps, can be thought of as how effective a device is at quickly retrieving small pieces of data from random locations. This type of access pattern is very common during operating system startup, where lots of configuration and driver files must be read from the disk. Drives that are used to host operating systems will perform much better if they are able to sustain high random read speeds. As a rule of thumb approximately 20% of a typical users overall disk access on a PC will consist of random reads.
4K random read is a disk access pattern whereby small (4K) blocks of data are read from random locations on the surface of the device being tested at a queue depth of one. The term is used primarily within the context of benchmarking and the speed which it is usually measured in, MBps, can be thought of as how effective a device is at quickly retrieving small pieces of data from random locations. This type of access pattern is very common during operating system startup, where lots of configuration and driver files must be read from the disk. Drives that are used to host operating systems will perform much better if they are able to sustain high random read speeds. As a rule of thumb approximately 20% of a typical users overall disk access on a PC will consist of random reads.
2020 Hardware Rankings
 PC Score |
PC Status |
|
|---|---|---|
| 0 secs agoAsus MAXIMUS VIII HERO | Nuclear submarine | 64% |
| 1 sec agoROG MAXIMUS XI HERO (WI-FI) | Aircraft carrier | 50% |
| 3 secs agoGigabyte B450 AORUS PRO WIFI | Battleship | 16% |
| 4 secs agoRM DESKTOP 310 | Battleship | 38% |
| 4 secs agoROG CROSSHAIR VIII HERO (WI-... | UFO | 72% |
| 6 secs agoHP Laptop 15-da0xxx | Tree trunk | 62% |
| 9 secs agoAlienware m17 R3 | Tree trunk | 61% |
| 9 secs agoENVY x360 Convertible 15-ds0... | Battleship | 73% |
| 10 secs agoGigabyte GA-970A-DS3 | Battle cruiser | 47% |
| 10 secs agoAsus PRIME Z490-A | Nuclear submarine | 34% |
| 11 secs agoMSI 990FXA-GD65 (MS-7640) | Battle cruiser | 38% |
| 11 secs agoAsus P8H67-M PRO | Battle cruiser | 48% |
| 11 secs agoAlienware 17 R3 | Tree trunk | 50% |
| 11 secs agoGigabyte GA-B75MS | Battle cruiser | 75% |
| 13 secs agoLenovo 7033CE5 | Destroyer | 27% |
| 14 secs agoAsrock B450M-HDV R4.0 | Aircraft carrier | 61% |
| 15 secs agoGigabyte GA-B450M GAMING | Nuclear submarine | 84% |
| 16 secs agoAsus PRIME B350-PLUS | Aircraft carrier | 57% |
| 16 secs agoAsrock H270M-ITX/ac | Aircraft carrier | 31% |
| 16 secs agoAcer Predator G3-710 | Battleship | 61% |