Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
SATA connections interfaces with the Host Bus Controller to transfer data between the CPU and peripherals
SATA is backward compatible and runs off a single standard size port on the motherboard as well as a power jack from the computer power supply
SATA Express, also called SATA 3.2, though carrying the name SATA and using two SATA connections; is actually a PCIe connection running at a theoretical speed of 16Gb/s, same as PCIe gen3 4x connection and uses PCIe lanes
SATA 3.0 has a theoretical speed of 6 Gb/s, but a functional speed of ~600 MB/s due to overhead
eSATA works the same as SATA, but is an external powered SATA connector for external eSATA drives running at standard SATA speed
Standards:
Serial ATA International Organization
MC:
1. What bus does SATA Express run on?
a. The SATA bus
b. The PCIe bus
c. The eSATA bus
d. The system bus
2. What is the difference between SATA and eSATA?
a. eSATA doubles the transfer rate of SATA
b. eSATA is an external powered version of SATA
c. eSATA uses a separate bus
d. All of the above
3. Which is not a size of a PCIe slot?
a. 1x
b. 2x
c. 4x
d. 8x
4. PCIe gen 4 is expected in
a. 2016
b. 2017
c. 2020
d. 2015
5. Were you paying attention?
a. Yes
b. No
c. Yellow
d. Still no
True or False:
6. M.2 is PCIe based
T.
F.
7. Are most SATA SSDs capable of speeds faster than the SATA bus?
T.
F.
8. The PCIe based SSDs is the bottle neck for the data transfer in that setup?
T.
F.
9. M.2 is a PCIe gen 3 4x connection
T.
F.
10. SATA 3.2 is another name for SATA Express
T.
F.
The PCIe bus connects peripherals directly to the CPU
The current generation, PCIe Gen 3, at its largest "size", 16x, has a theoretical speed of 64Gb/s
M.2 is a PCIe connection running at gen3 4X and a max speed of 16Gb/s, but it has a different connector separate from the regular PCIe slots, however it still uses PCIe lanes
A PCIe slot is the physical connector on the motherboard
A PCIe lane is a single PCIe connection and the number of PCIe lanes determines a card or slots size, 1x, 4x, 8x, and 16x
PCIe also runs at one of three generations, gen 1, 2, or 3
The PCIe bus is backwards compatible. The speed a card will run at is determined by the size and generation of the card and the slot it's put in. They will adjust themselves to run at the maximum speed achievable.
Standards:
PCI-SIG
PCIe or, Peripheral Component Interconnect Express, connects computer peripherals directly to the processor
SATA or, Serial AT Attachment, connects computer peripherals to the host bus adapter which communicates with the CPU
Sources:
Images:
http://images.hardwarecanucks.com/image/eldonko/GD80/Board/pcie.jpg
https://www.msi.com/pic/image/mb/9_series/oc/m2x4_highlight_x99.jpg
http://rog.asus.com/wp-content/uploads/2013/12/SATA-Express-connector-early-design-2.jpg
https://asset.msi.com/resize/image/global/product/five_pictures1_2297_20110221144824.jpg62405b38c58fe0f07fcef2367d8a9ba1/600.png
http://www.cadalyst.com/files/cadalyst/nodes/2014/21388/1114HoH-2.png
http://www.upgradenrepair.com/images/CD-ROM/mbsataports.JPG
https://usb.brando.com/prod_img/zoom/UPCSF024500_02_L.jpg
http://www.pcper.com/files/imagecache/article_max_width/news/2014-05-01/MAIN-IMAGE.jpg
http://estaticos1.milanuncios.com/fg/1915/55/discos-duros-en-c%C3%A1ce/discos-duros-sata-191555974_1.jpg
http://www.storagereview.com/images/wd_velociraptor_1tb_2mb_sequentialtransfer.png
http://media.wiley.com/Lux/49/291549.image0.jpg
http://www.legitreviews.com/wp-content/uploads/2014/04/sata-express-board-645x249.jpg
http://tssdr1.thessdreview1.netdna-cdn.com/wp-content/uploads/2013/11/Plextor-M6e-PCIe-SSD-x2.jpg
https://www.pcper.com/files/imagecache/article_max_width/review/2014-09-19/09-headers-mid-left.jpg
http://images17.newegg.com/is/image/newegg/20-147-467-TS?$S640$
http://blogs-images.forbes.com/marcochiappetta/files/2015/09/intel-p3608-ssd-angle2.jpg
http://www.storagenewsletter.com/wp-content/uploads/2015/08/WD-6TB.jpg
http://cdn.slashgear.com/wp-content/uploads/2013/06/nfs-movie.jpg
https://www.pcper.com/files/imagecache/article_max_width/review/2014-09-19/09-headers-mid-left.jpg
http://www.computershopper.com/var/ezwebin_site/storage/images/media/images/sata-express/1143914-2-eng-US/sata-express.jpg
http://4.bp.blogspot.com/-aTdnWDDKwD0/USCesgfJPAI/AAAAAAAAAbM/vsdr4KwKw1U/s1600/connettore_SATA.png
http://www.angelbird.com/media/material/2016/02/02/WINGS_PX1_angle_520x490_20160119.jpg
Data:
https://en.wikipedia.org/wiki/PCI_Express#PCI_Express_4.0
http://www.tweaktown.com/news/46190/pcie-4-feature-16gt-new-connector-arrive-2017/index.html
http://ark.intel.com/products/82930/Intel-Core-i7-5960X-Processor-Extreme-Edition-20M-Cache-up-to-3_50-GHz
http://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz
http://ark.intel.com/products/84688/Intel-Xeon-Processor-E7-8893-v3-45M-Cache-3_20-GHz
https://en.wikipedia.org/wiki/SATA_Express
https://www-ssl.intel.com/content/www/us/en/solid-state-drives/consumer-family.html
https://en.wikipedia.org/wiki/Serial_ATA
https://linustechtips.com/main/topic/370355-does-m2-take-up-any-of-the-cpus-max-pcie-lanes/
http://hdd.userbenchmark.com/
http://hdd.userbenchmark.com/
http://ssd.userbenchmark.com/
http://ssd.userbenchmark.com/SpeedTest/38554/NVMe-Samsung-SSD-950
SATA Express drives are not yet readily available, they were supposed to be released in 2015
SATA 3.0 and eSATA can operate HDDs and SSDs at a maximum of 6Gb/s
SATA Express drives would run with a theoretical speed of 16Gb/s, but there is little data on their effective speed because of their lack of availability
M.2 drives can run at a theoretical 16Gb/s and current drives max out at 15.912Gb/s read and 10.64Gb/s write with the Samsung 950 NVMe
PCIe slots can handle PCIe based SSD's as well as M.2 adapter cards
HDDs speed current max is 235 MB/s read and 249 MB/s write with WD Black 6TB (2015).
The theoretical maximum speed of a drive connected to the PCIe bus would be 64Gb/s, however current NVMe drives deliver a max of 40Gb/s read and 24Gb/s write, and uses a PCIe gen3 8x slot (Intel DC P3608).
SATA:
Max speed of ~6Gb/s
PCIe:
SSDs can reach 529 MB/s read with the Samsung 850 Pro and 509 MB/s write with the Corsair Neutron XT
Intel® Core™ i7-5960X Processor Extreme Edition (20M Cache, up to 3.50 GHz)
40 lanes
Intel® Core™ i7-6700K Processor
(8M Cache, up to 4.20 GHz)
16 lanes
Intel® Xeon® Processor E7-8893 v3
(45M Cache, 3.20 GHz)
32 lanes
However ~20Gb/s is much more common
Bigger motherboard
More powerful CPU
With a transfer rate limitation of 6Gb/s, raid 0 striping can be used to overcome the transfer cap to a point
MSI Big Bang-Marshal (B3) XL ATX LGA1155 Motherboard - 8 16x slots
Aside from enthusiasts wanting data to transfer as fast as possible, faster data transfer rates are a requirement for 4k video or uncompressed raw video editing, high bandwidth computing tasks, as well as data storage arrays
(however enterprise arrays have work around for this using distributed storage with advanced RAID arrays)
Bus Improvements
Answer to final MC question:
B.
At current there is no released plan for SATA 4, however the theoretical plan for it would increase the data transfer rate to 12Gb/s, but the idea was dismissed because the power requirements would be too high and it was likely to reduce flash memory durability.
This is why they moved to PCIe based SATA Express (SATA 3.2)
Drive Improvements
Bus:
PCIe gen4
There is little room for advancement in SATA HDDs as they have been stuck at ~200 MB/s or less for year.
There is little room for SSDs to grow either because they have already hit the max.
Drives:
Drives capable of the full 64Gb/s transfer rate
Future expansion will come in SATA Express and with it we can use SSDs that are already capable of its 16Gb/s speed