TESTA A measure of how responsive a Flash Drive is to typical user access patterns. Sandisk Extreme 64GB ≈ 100%.
There are several speeds associated with storage devices (sequential, random 4k, deep queue). It's necessary to make assumptions about the type of access patterns before assessing a drives performance. Most USB flash drives are used to backup and transport photo, audio and video files. These types of files are generally large and demand high sequential read and write speeds. The effective USB speed is weighted as 50% sequential read, 40% sequential write, 5% 4K read and 5% 4k write. These weights favour reading large files and somewhat downplay the importance of small 4K file operations.
There are several speeds associated with storage devices (sequential, random 4k, deep queue). It's necessary to make assumptions about the type of access patterns before assessing a drives performance. Most USB flash drives are used to backup and transport photo, audio and video files. These types of files are generally large and demand high sequential read and write speeds. The effective USB speed is weighted as 50% sequential read, 40% sequential write, 5% 4K read and 5% 4k write. These weights favour reading large files and somewhat downplay the importance of small 4K file operations.
See a current list of USB Flash Drives and their effective speeds here.
2019 Hardware Rankings
 PC Score |
PC Status |
|
|---|---|---|
| 0 secs agoAsus TUF X299 MARK 1 | UFO | 57% |
| 3 secs agoDell Precision T7610 | Battleship | 44% |
| 16 secs agoLenovo 4236GG8 | Yacht | 46% |
| 24 secs agoAsus ROG STRIX X470-I GAMING | UFO | 67% |
| 28 secs agoToshiba SATELLITE C660 | Sail boat | 59% |
| 31 secs agoGigabyte GA-990FXA-UD3 | Battle cruiser | 77% |
| 32 secs agoAsus PRIME Z270M-PLUS | UFO | 67% |
| 39 secs agoAsus ROG STRIX B450-I GAMING | Tree trunk | 80% |
| 39 secs agoAsus ROG STRIX B450-F GAMING | Tree trunk | 48% |
| 40 secs agoMSI A320M BAZOOKA (MS-7A38) | Yacht | 85% |
| 42 secs agoAsus TUF Z390-PLUS GAMING | UFO | 62% |
| 44 secs agoMSI MS-17G1 | Aircraft carrier | 60% |
| 49 secs agoAsus P8H77-M | Yacht | 47% |
| 55 secs agoGigabyte GA-H97N-WIFI | Speed boat | 10% |
| 55 secs agoAsus TUF X470-PLUS GAMING | UFO | 60% |
| 57 secs agoHP Compaq Pro 6300 MT | Yacht | 79% |
| 57 secs agoAsus P8Z77-V | Gunboat | 45% |
| 1 min agoAsus M5A99X EVO R2.0 | Gunboat | 76% |
| 1 min agoX470 AORUS ULTRA GAMING | Nuclear submarine | 60% |
| 1 min agoROG MAXIMUS XI HERO (WI-FI) | UFO | 52% |