HD Tune Pro 5.00 set Black Size as 1MB can have the best performance. 64K - Write - Average 282.9 MB/s Access Time 0.099ms 1MB - Write - Average 335.2 MB/s Access Time 0.177ms Read - Random Access & Extra tests Write - Random Access & Extra tests File Benchmark Sequential Read - 60431 IOPS / Write - 911977 IOPS ATTO DISK Benchmark over 512k test, max Read is 559.2 Mb/s and Write is 535.6 MB/s HD Tune Pro 5.00 revises File Benchmark to be more detail. There are more paramaters for reference. ATTO DISK Benchmark test result is over official Read 550 and Write 520 MB/s. CrystalDiskMark Seq Read - 524.6 MB/s Write - 298.3 MB/s <All 0xFF, 0Fill> Read - 530.0 MB/s Write - 525.7 MB/s <All 0x00, 1Fill> Read - 529.6 MB/s Write - 525.7 MB/s CrystalDiskMark default test is random, As right-hand picture, the Write performance is lower. This part is caused by SandForce controller structure. The performance will be lower as algorithm. Left side CrystalDiskMark test changes to two pure sequential mode. The Write is close to official spec. SandForce has special algorithm in Sequential Write. The speed starts from 280MB/s and ramp to 500 MB/s slowly. This is also a weakness of SandForce controller. AS SSD Benchmark - 824 Seq Read - 519.10 MB/s Write - 280.41 MB/s 4K - 64Thrd Read - 227.01 MB/s Write - 222.52 MB/s SandForce structure will be changed by SSD capacity. AS SSD Benchmark with 120GB is only 500, but it improves to 700~800 with 240GB. You can see 240GB Write Seq/4K-64Thrd is much better than 120GB. AS SSD Benchmark in personal experience, the ratio is more on 4K and 4K-64Thrd. In these 2 items, if the transfer rate is higher, the total will be higher as well. PCMark Vantage - HDD Score : 85720 CrystalMark Sequential Read 505.88 MB/s Sequential Write 501.55 MB/s IOMETER 2008 1 minute - 100% Read / 100% Random 4KB Total I/Os per Second 57420.61 3 minutes - 100% Read / 100% Random 4KB Total I/Os per Second 56000.22 1 minute - 100% Write / 100% Random 4KB Total I/Os per Second 91930.96 |
3 minutes - 100% Write / 100% Random 4KB Total I/Os per Second 85981.10 IOMETER 2008 test, you can see the first minute I/Os is extremely high. If the test keeps for 3 minutes, the I/Os becomes lower. However, it’s still higher than official sepc, max Random Read/Write 39K / 83K IOPS. Above-mentioned, SandForce controller has special algorithm for Sequential Write. It leads to the performance speeding. Internet said it designs for reducing writing numbers to increase SSD life. Anyway, only sequential write can achieve 500 MB/s. For random test, Write is only 180~280 MB/s. Besides this, Read or 4K is good performance level. SanDisk uses NAND Flash synchronize IC, the performance is not lower than Intel or Micron IC. SandForce controller has been in the market for a while. SanDisk SSD can have more competitive price. Second part is NoteBook test. I still use acer TimelineX 3830TG for performance test. I have been using this NB for several SSD reviews. The performance won’t be impact by SATA performance. If I get Ivy Bridge NoteBook in the future, I will move to latest Intel chipset one. 3830TG color is very eye catching. The upper cover is aluminum also. The body is also slim. Intel chipset is HM65. In NoteBook, it has better SATA3 transfer ability. SanDisk Extreme 240GB install at SATA3 as system drive. OS is Windows7 Ultimate 64bit, all drivers and Intel Smart Response Technology. HD Tune Pro 5.00 Black Size is special function of this software. Left side is default 64K and right side is 1MB. 64K - Read - Average 257.6 MB/s Access Time 0.177ms 1MB - Read - Average 492.4 MB/s Access Time 0.182ms File Benchmark Sequential Read - 51068 IOPS / Write - 78802 IOPS ATTO DISK Benchmark over 1024k test, max Read is 556.6 Mb/s and Write is 527.6 MB/s. CrystalDiskMark Seq Read - 435.0 MB/s Write - 233.1 MB/s <All 0xFF, 1Fill> Read - 466.0 MB/s Write - 472.5 MB/s <All 0x00, 0Fill> Read - 474.7 MB/s Write - 472.0 MB/s AS SSD Benchmark - 660 Seq Read - 492.39 MB/s Write - 229.45 MB/s 4K - 64Thrd Read - 214.37 MB/s Write - 179.59 MB/s NoteBook SATA transfer rate is around 10% lower than DeskTop, especially 4K Write. 3830TG SATA3 transfer rate is lower than PC, but it’s still acceptable. BootRacer Time to Logon 5~6 seconds Time to Desktop 14~15 seconds Previously, I use TOSHIBA MK6461GSY 640GB 7200, Time to Desktop was 42 seconds. SanDisk Extreme 240GB in Time to Desktop is 15 seconds. I use same NoteBook for both drives and install same drivers and software. SSD really can speed up NoteBook. SSD booting speed is 2.8 times faster than HDD. Of course, starting software is also much faster, especially you can feel for bigger files. These three years, SSD all drop price annually. It can encourage users and market to move to SSD. In 2010, 32GB was 120USD and 64GB was 220USD. Last year, 64GB was 120USD and 128GB was 220USD. This year, the market is starting to wriggle. Recently, 120/128GB and 240/256GB are starting to drop price in some regions. SanDisk Extreme 240GB price in Taiwan is 7800NTD, around 266USD. Using SandForce SF-2281 high speed controller and synchronize NAND Flash IC to own high performance. This cost performance can be the lowest price in same market position. SanDisk just comes into SSD market and go straight to low price and high performance product line. If they also provide good warranty and firmware upgrade, SanDisk can be a new brand with high C/P. :) This review is also in my blog WIND3C, Any comments are welcome. |
All times are GMT +1. The time now is 20:23. |
Powered by vBulletin® - Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO