Unless you have been living under a rock, you will be no stranger to the Serial ATA standard that has become the new medium for mass storage connection to the PC. Serial ATA standards have now started to produce in mass on motherboards, with upwards of 4 ports standard on Intel, ULi, SIS and nVidia Southbridge's - not to mention the amount of additional controllers being added by motherboard makers, its not uncommon to see 6-8 SATA ports per motherboard.
Serial ATA's main claim to fame is serial transfer of data from the I/O logic to the HDD controller chips. Serialisation means using serial communication architecture, similar to that which was introduce by RAMBUS for its RDRAM memory. Serial ATA Generation 1 is able to transmit at a theoretical 1.5Gbps (or 150MB/s) between the Southbridge and the onboard system controller of the Hard Disk, however, limits in magnetic storage doesn't permit the HDD to actually take advantage of this - speed wise, SATA is no more faster than ATA-133 HDD's until NCQ come along.
NCQ or Native Command Queuing is fairly new to the Serial ATA standards. NCQ allows the HDD to smartly access data out of order rather than having to go though an order state to grab the required files, which can be located in different parts of the drive platers.
Another feature of Serial ATA is the reduced size of the cables while lengthening them at the same time. SATA cables are only 7 wires wide, as opposed to IDE which are 80 wires across. IDE also limits the size at just over 60cm long while Serial ATA can go up to 1 meter before a repeater is needed to power re-transmit data over longer cables.
Serial ATA Gen 1 did make some changes, now we have received Serial ATA Generation 2. SATA-II as it is known speeds the data transmission from 150MB/s up to 300MB/s between the HDD and the Southbridge chipset. nVidia and Intel are the first to offer this in their south bridges, with ULI, SiS and ATI soon to follow.
Today we are looking at the first SATA-II HDD to cross our labs, Western Digital's Caviar SE WD2500JS and comparing it to a high-performing Seagate SATA 7200.8 HDD.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction]
- Page 2 [Specifications]
- Page 3 [Features]
- Page 4 [Benchmarks - Test System Setup and HD Tach]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- Qualcomm teases 48-core processor on 10nm process
- Watch Shigeru Miyamoto play Mario's theme song on guitar
- Counter-Strike: Global Offensive update enhances audio
- BitFenix reveals new enthusiast Shogun PC case
- Nintendo's Super Mario Run mobile game is online-only
- Asrock J3355M doesn't power on (mostly)
- ASUS Maximus Ranger not detecting my GPU
- x99 Taichi gets WHEA 17 errors and BSOD124
- Dk-q1 / dk-q1h
- asrock 880g pro3 codes E8>54>19
- BIOSTAR announces new motherboard features
- ADATA releases updated SC660H and SV620H 3D NAND external SSDs
- BitFenix announces the Shogun chassis with ASUS Aura support
- Bluetooth 5 specification now available, 4x Range, 2x Speed
- Zadak511 reveals SHIELD Series with RGB DDR4 RAM and RGB SSD