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 agoMSI Z370-A PRO (MS-7B48) | Nuclear submarine | 48% |
| 4 secs agoAsus PRIME B450M-A | Tree trunk | 43% |
| 5 secs agoTUF Z390M-PRO GAMING (WI-FI) | Nuclear submarine | 64% |
| 6 secs agoAsus M4A89GTD-PRO/USB3 | Destroyer | 49% |
| 7 secs agoENVY x360 Convertible 15-ds1... | Battleship | 30% |
| 9 secs agoLenovo 20238 | Yacht | 50% |
| 10 secs agoHP ProBook 440 G3 | Tree trunk | 49% |
| 14 secs agoTUF Gaming FX505DT_FX505DT | Battle cruiser | 46% |
| 15 secs agoMSI B450-A PRO (MS-7B86) | Aircraft carrier | 33% |
| 16 secs agoAsus PRIME Z270-K | Nuclear submarine | 65% |
| 16 secs agoLenovo 80WK | Gunboat | 29% |
| 17 secs agoAcer Aspire A515-54G | Aircraft carrier | 67% |
| 17 secs agoHP ENVY Laptop 13-ba0xxx | Tree trunk | 63% |
| 18 secs agoDEXP Aquilon O183 | Battle cruiser | 63% |
| 19 secs agoDell Inspiron 5577 | Battleship | 61% |
| 25 secs agoHP Compaq CQ45 Notebook PC | Tree trunk | 17% |
| 31 secs agoAsus TUF B450-PLUS GAMING | Nuclear submarine | 77% |
| 49 secs agoMAG B365M MORTAR(MS-7C67) | Tree trunk | 70% |
| 51 secs agoMSI MS-16K2 | Battle cruiser | 23% |
| 53 secs agoAsus ROG STRIX B450-F GAMING | Nuclear submarine | 70% |