Test Hardware And Benchmarks
We used a test system equipped with Gigabyte's H55M-USB3 motherboard and an Intel Core i5-661 CPU to benchmark the AES performance of TrueCrypt version 7.0a. The CPU comes with the AES-NI instruction set and should provide a performance boost on encrypted systems. To determine just how much of a boost you can get, we employed three different test system configurations: an unencrypted system, an AES-encrypted system without acceleration, and an AES-encrypted system with AES-NI hardware acceleration. To make sure that the hardware acceleration is activated in TrueCrypt, go to the Performance Options menu and check the Accelerate AES encryption/decryption by using the AES instructions of the processor (if available) box.
We also used an OCZ Vertex 2.5” SSD as system drive in order to exclude the storage subsystem as a limiting factor, encrypting the entire drive. We first set up and installed all software on a hard drive, and then cloned it to the SSD for each run in order to make sure that each test was executed under the same conditions. We used Iometer 2008.08.18, PCMark Vantage, and SYSmark 2007.
|Motherboard (LGA 1156)||Gigabyte H55MA-USB3 (Rev. 1.0), Chipset: H55 Express, BIOS: F8 (07/06/2010)|
|CPU||Intel Core i5-661 (Clarkdale), 32 nm, 3.33 GHz, 4 x 256 KB L2 and 8 MB L3 Cache, 95 W TDP)|
|Memory||2 x 2 GB DDR3-1600 (OCZ OCZ3G2000LV4GK), DDR3-1333, 8-8-8-24 1T|
|Hard Drive||OCZ Vertex 2, 120 GB (OCZSSD2-2VTXE120G), SandForce SF-1200, SATA 3Gb/s|
|Graphics||Intel HD Graphics|
|Power Supply||PC Power & Cooling, Silencer 750EPS12V 750 W|
|OS and Drivers|
|Operating System||Windows 7 Ultimate x64, Updated 2010-07-26|
|Drivers and Settings|
|Intel Chipset Drivers||Chipset Installation Utility Ver. 188.8.131.525|
|Intel Graphic Driver||Ver. 184.108.40.206.2141|
|Synthetic||SYSmark Preview 2007 1.05 PCMark Vantage 220.127.116.11|
|I/O Performance||Iometer 2008.08.18 Fileserver-Benchmark Webserver-Benchmark Database-Benchmark Workstation-Benchmark Streaming Reads Streaming Writes 4k Random Reads 4k Random Writes|