CrystalDiskMark 3.0.1 Benchmark	Source:AS SSD

CrystalDiskMark is a drive benchmark tool which conducts a series of Sequential, 512K and 4K read and write tests.

100MB test	500MB test
1000MB test	2000MB test
4000MB test

CrystalDiskMark 100MB Test 500MB Test 1,000MB Test 2,000MB Test 4,000MB Test Read Write Read Write Read Write Read Write Read Write Sequential (MB/s) : 196.9 173.5 189.3 182.3 199.3 186.8 197.3 184.5 199.0 185.8 512K (MB/s) : 151.9 33.45 152.8 26.9 153.9 24.32 151.3 24.40 150.4 23.47 4K (MB/s) : 15.01 5.33 14.01 6.4 14.41 10.2 14.22 10.13 14.01 10.14 4K QD32 (MB/s) : 12.77 5.28 11.38 4.4 11.03 4.95 10.99 3.75 10.84 3.12

The SD Extreme 64GB USB 3.0 flash drive scores 196M/s Read & 173.5MB/s Write in the 100MB Sequential test of CrystalDiskMark.

The test results peak at 199MB/s Read in the 1000MB and 4000MB tests. Write test results peak at 186.8MB/s in the 1000MB test. These results surpass SD's advertised capabilities for this 64GB USB 3.0 flash drive, which are based on the 100MB test result.

AS SSD 1.6.4013 Benchmark	Source:AS SSD

The AS SSD benchmark determines the performance of Solid State Drives (SSD). The tool contains six synthetic and three copy tests.

In AS SSD we see similarly quick results from the Sandisk Extreme 64GB USB 3.0 flash drive. It achieves a score of 179MB/s Read / 175MB/s Write in the sequential test. These results are in line with the manufacturers advertised capabilities.

SiSoft Sandra 2012 - Removable Storage	Source:Sandra

Sandra is designed to test the theoretical power of a complete system and individual components. The numbers taken though are again, purely theoretical and may not represent real world performance. Higher numbers represent better performance.

Sandra 2012 Removable Storage Read / Write Tests (MB/s) Cap. Data Interface 4 KB Test (MB/s) 64 KB Test (MB/s) 1MB Test (MB/s) 16MB Test (MB/s) 256MB Test (MB/s) Read Write Read Write Read Write Read Write Read Write SanDisk Extreme 64GB USB 3.0 5.72 2 88.38 61.28 165.88 158 169 33.08 188.4 159.83 Patriot Memory 64GB USB 3.0 5.82 0.233 53.33 3.24 67.5 15.81 96.34 18.56 122.39 45.76 Supertalent Luxio 64GB USB 2.0 3.0 0.129 25.15 2.24 29.24 8.7 30.36 10.78 29.12 15.00

The Sandisk Extreme 64GB USB 3.0 peaks out at 188MB/s (read) and 159MB/s (write) in the 256MB test of Sandra 2012. By comparison, the Patriot Supersonic brings up the rear in each test even though both flash drives are USB 3.0 and 64GB in capacity.

8.5GB Single File Time Transfer Test

For this test a single 8.5GB, high definition 1080p .MKV movie file is copied from a Western Digital Raptor WD740 system disk to the removable storage device, then from the removable storage device to the system disk. Teracopy is used to monitor transfer times and speeds. While this test is influenced by the system disk SATA controller, it provides a straightforward real world indication of sustained transfer rates. Higher transfer speeds and lower transfer times are best. Speed and time are monitored with TeraCopy.

8.5GB Single File Time/Transfer Test ( Lower times are best ) Removable Storage Cap. Data Interface Copy TO Removable Storage (Write) Copy FROM Removable Storage (Read) Speed Time Speed Time Seagate FreeAgent GoFlex HDD 500GB USB 3.0 n/a n/a n/a n/a Seagate FreeAgent GoFlex HDD 500GB USB 2.0 31MB/s 4:28 31MB/s 4:30 Seagate FreeAgent GoFlex HDD 500GB eSATA 53MB/s 2:36 49MB/s 2:50 SanDisk Extreme 64GB USB 3.0 48MB/s 2:54 39MB/s 3:35 SanDisk Extreme 64GB USB 2.0 29MB/s 4:44 29MB/s 4:42 Patriot Memory 64GB USB 3.0 52MB/s 2:39 53MB/s 2:36 Patriot Memory 64GB USB 2.0 26MB/s 5:08 23MB/s 5:36 Supertalent Luxio 64GB USB 2.0 18MB/s 7:33 28MB/s 4:54

The single large file time transfer test is a sign of the times; how long must you wait to share a HD 1080p 8.5GB MKV movie with a friend? I'm sure there are more technical ways of approaching removable storage device timed file transfers, but this is practical and fun....so here it is.