TESTA A measure of how quickly multiple small files can be written to a device.
4K random write is a disk access pattern whereby small (4K) blocks of data are written to random locations on the surface of a storage device 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 saving small pieces of information to random locations on the disk. This type of access pattern is common when running applications from a disk and also when copying large application directories. All else being equal drives that are used to host operating systems will perform much better if they are able to sustain high random write speeds. As a rule of thumb approximately 25% of a typical users overall disk access on a PC will consist of random writes.
4K random write is a disk access pattern whereby small (4K) blocks of data are written to random locations on the surface of a storage device 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 saving small pieces of information to random locations on the disk. This type of access pattern is common when running applications from a disk and also when copying large application directories. All else being equal drives that are used to host operating systems will perform much better if they are able to sustain high random write speeds. As a rule of thumb approximately 25% of a typical users overall disk access on a PC will consist of random writes.
2021 Hardware Rankings
 PC Score |
PC Status |
|
|---|---|---|
| 1 sec agoAsrock H310CM-HDV | Nuclear submarine | 75% |
| 1 sec agoDell XPS 13 9310 | Battle cruiser | 35% |
| 3 secs agoROG Zephyrus G15 GA503QR_GA5... | Nuclear submarine | 48% |
| 9 secs agoDell XPS 15 9560 | Battleship | 43% |
| 9 secs agoB450M PRO-VDH MAX (MS-7A38) | Aircraft carrier | 51% |
| 10 secs agoAsus ROG Strix G712LV_G712LV | Nuclear submarine | 77% |
| 14 secs agoDell Precision 5520 | Aircraft carrier | 75% |
| 17 secs agoAsrock B450M/ac | Nuclear submarine | 85% |
| 23 secs agoAsus PRIME B450M-A | Nuclear submarine | 53% |
| 27 secs agoAsus K46CA | Tree trunk | 14% |
| 28 secs agoLenovo 81H7 | Battle cruiser | 48% |
| 34 secs agoAsus ROG STRIX B450-F GAMING | Tree trunk | 59% |
| 40 secs agoAsus TUF B450M-PLUS GAMING | Aircraft carrier | 71% |
| 40 secs agoGigabyte GA-A320M-S2H-CF | Aircraft carrier | 60% |
| 51 secs agoTUF GAMING X570-PLUS (WI-FI) | UFO | 54% |
| 51 secs agoAsrock B450M Pro4 | Aircraft carrier | 67% |
| 53 secs agoAsus ROG Strix G35CZ_G35CZ | UFO | 68% |
| 53 secs agoDell Inspiron 5755 | Jet ski | 67% |
| 58 secs agoGM441AA-ABA m8125x | Yacht | 22% |
| 1 min agoAsrock X470 Taichi | Nuclear submarine | 31% |