PCI Express 4.0 doubles bandwidth, due 2016

PCI Express logoThe PCI Special Interest Group is working on the PCI Express 4.0 standard, which would double the maximum transfer rates to 16 gigatransfers per second. PCIe 4.0 would be the last standard based on copper, with a move to optical board superseding it. Detailed requirements are still up in the air, but the speed targets are thought to need new chips to properly feed boards longer than 10-12 inches.

One PCI SIG member believes PCIe 4.0 boards with one connector will need re-driver chips to cover distances longer than ten to twelve inches. Current maximum distances cover 20 inches and two connectors will need re-driver chips. The new spec should also lower power consumption, as it needs less hardware and physical space.

The president of PCI SIG, Al Yanes, believes that PCIe 4.0 will eventually be used by anyone who now uses a four- or eight-lane original PCI Express design. The first adopters of the technology are expected to be high-end graphics and networking makers. Yanes also believes flash drives will use it.

What will be retained from current 8GTps version 3.0 technology is its encoding, which should also preserve the same overhead and throughput for apps. Simulations to determine maximum throughput took up to nine months, with 16GTps judged to be the optimal for the copper-based boards. Speeds up to 24GTps would make the technology too expensive.

Goals include low cost and backward compatibility, Yanes said. The team is also looking into ways to improve active and idle power use.

The standard should be completed by 2014 and the first systems using it are expected to ship in 2016. Based on the group's regular four-year gaps between releases, the optical boards are expected out in or near 2019.

Source: Electronista

Tags: PCI Express

Comments
Add comment

Your name:
Sign in with:
or
Your comment:


Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party


Last news

 
Samsung Galaxy Tab S4 will boast a larger 10.5-inch display with 2560 x 1600 pixels resolution
 
The new power scheme will allow users to extract slightly more performance out of their machines
 
Huawei's P20 family of smartphones is scheduled for a March 27 announcement in Paris
 
New stats show Amazon surpassed Microsoft this week
 
Qualcomm and Broadcom executiveswere met in February 14
 
Gmail Go at its core will do what the regular Gmail app does
 
 
Qualcomm didn’t say who is building the X24 modem
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 /
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /
 
 

News Archive

 
 
SuMoTuWeThFrSa
    123
45678910
11121314151617
18192021222324
25262728   




Poll

Do you use microSD card with your phone?
or leave your own version in comments (6)