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. 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. 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.
2019 Hardware Rankings
 PC Score |
PC Status |
|
|---|---|---|
| 1 secs agoGigabyte GA-EX58-UD3R | Destroyer | 84% |
| 4 secs agoGigabyte GA-B450M DS3H-CF | Destroyer | 74% |
| 13 secs agoHP Compaq 6200 Pro MT PC | Yacht | 41% |
| 15 secs agoAsrock Z370 Killer SLI/ac | UFO | 81% |
| 21 secs agoAsus H110M-K | Gunboat | 44% |
| 32 secs agoAsus PRIME Z370-A | Battleship | 50% |
| 35 secs agoZ170A GAMING PRO CARBON (MS-... | Destroyer | 45% |
| 41 secs agoAsus ROG STRIX Z370-H GAMING | UFO | 82% |
| 41 secs agoMSI B450 Tomahawk | UFO | 62% |
| 42 secs agoAsrock B450 Pro4 | Nuclear submarine | 67% |
| 43 secs agoAsrock AB350M | Battleship | 79% |
| 45 secs agoAsus ROG STRIX B350-F GAMING | Tree trunk | 61% |
| 45 secs agoToshiba SATELLITE L870-140 | Sail boat | 84% |
| 48 secs agoAcer Predator G3-571 | Gunboat | 66% |
| 48 secs agoGigabyte GA-990XA-UD3 | Yacht | 58% |
| 50 secs agoDell XPS 12 9Q23 | Sail boat | 40% |
| 50 secs agoGigabyte GA-H110M-Gaming3-CF | Yacht | 26% |
| 57 secs agoAsus ROG STRIX X470-F GAMING | UFO | 75% |
| 1 min agoAsus ROG STRIX Z370-E GAMING | Nuclear submarine | 71% |
| 1 min agoAsus ROG STRIX B450-F GAMING | UFO | 61% |