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 |
|
|---|---|---|
| 1 sec agoLenovo 81N4 | Nuclear submarine | 69% |
| 1 sec agoGA-B450M DS3H WIFI-CF | Yacht | 5% |
| 1 sec agoAsrock B450 Pro4 | Nuclear submarine | 77% |
| 2 secs agoGigabyte GA-F2A88XN-WIFI | Speed boat | 37% |
| 2 secs agoGigabyte GA-78LMT-USB3 6.0 | Sail boat | 49% |
| 2 secs agoAsus E402BA | Tree trunk | 63% |
| 5 secs agoMSI B450M PRO-VDH (MS-7A38) | Speed boat | 29% |
| 13 secs agoX370 GAMING PRO CARBON (MS-7... | UFO | 59% |
| 13 secs agoGigabyte B450M DS3H | Tree trunk | 87% |
| 14 secs agoB450 TOMAHAWK MAX (MS-7C02) | UFO | 71% |
| 14 secs agoDell Latitude E6520 | Speed boat | 66% |
| 16 secs agoDell Inspiron 5423 | Jet ski | 42% |
| 21 secs agoStandard Standard | Sail boat | 57% |
| 21 secs agoHP ProDesk 600 G1 SFF | Tree trunk | 73% |
| 22 secs agoOMEN X by HP Laptop 15-dg0xx... | UFO | 75% |
| 23 secs agoAsus ROG STRIX Z390-F GAMING | Aircraft carrier | 61% |
| 23 secs agoAsus PRIME X370-PRO | Aircraft carrier | 10% |
| 25 secs agoAcer Predator PH315-52 | Aircraft carrier | 58% |
| 25 secs agoAsus P7P55 LX | Jet ski | 70% |
| 26 secs agoAsus P8P67 LE | Gunboat | 72% |