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Can Thunderbolt Survive USB SuperSpeed+?
Lucas123 writes: "The USB SuperSpeed+ spec (a.k.a. v3.1) offers up to 10Gbps throughput. Combine that with USB's new C-Type Connector, the specification for which is expected out in July, and users will have a symmetrical cable and plug just like Thunderbolt but that will enable up to 100 watts of power depending on the cable version. So where does that leave Thunderbolt, Intel's other hardware interconnect? According to some analysts, Thunderbolt withers or remains a niche technology supported almost exclusively by Apple. Even as Thunderbolt 2 offers twice the throughput (on paper) as USB 3.1, or up to 20Gbps, USB SuperSpeed+ is expected to scale past 40Gbps in coming years. 'USB's installed base is in the billions. Thunderbolt's biggest problem is a relatively small installed base, in the tens of millions. Adding a higher data throughput, and a more expensive option, is unlikely to change that,' said Brian O'Rourke, a principal analyst covering wired interfaces at IHS."
I figured that all along. It took off on Apple hardware, with almost no pickup on normal PCs. That has finally started to happen a little - some upper end motherboards have 1 or 2 Thunderbolt ports now, and Asus has an add-on board for a few others - but it is really a niche thanks to its odd hardware requirements and lack of early adoption outside of Apple. USB is easier to use, and at least up to 3.0 has been backward compatible with older devices. With an even faster option, as long as they don't screw something up, I don't see how USB could not continue to be the leading connectivity standard.
William George
Thunderbolt isn't going to replace USB in all cases, but Thunderbolt isn't about the speed. It's about the protocol. Thunderbolt is basically PCI-E over a wire. Can you connect a GTX 780 Ti (http://techreport.com/news/26426/thunderbolt-box-mates-macbook-pro-with-geforce-gtx-780-ti) with USB 3.1? No? Not really a replacement then. Same goes for any other device that has traditionally been a PCI-E card. Or, you know, you can get an adaptor (http://www.sonnettech.com/product/echoexpressiii.html) and directly connect a PCI-E card.
Speed wise Thunderbolt is evolving too. At this rate there isn't much of a chance of USB 3.1 catching Thunderbolt. As the OP mentioned, Thunderbolt is still ahead of USB 3.1 and 40 Gbps Thunderbolt is coming soon (http://www.extremetech.com/computing/181099-next-gen-thunderbolt-details-40gbps-pcie-3-0-hdmi-2-0-and-100w-power-delivery-for-single-cable-pcs). But again, even is USB catches Thunderbolt, or both become fast enough, the protocols and designs of the connections makes them entirely unsuitable for each other's uses (you wouldn't connect a mouse and keyboard to your PCI-E bus directly via Thunderbolt.)
I have a really hard time caring about "up to 100 watts of power depending on the cable version", mostly because of the "depending on the cable version" part of the statement.
How is this different from DVI, which much or might not have multichannel audio, might or might not be analog, might or might not support 5 channel digital sound, etc., etc.?
One thing Thunderbolt has going for it is that a cable is a cable, and you don't have to worry about it. If you want negotiated power supplied over USB, fine, but don't make me search my cardboard box for the "most sincere USB 3.1 cable". Thanks.
Thunderbolt 2 allows me to connect a 4k DisplayPort screen (or daisy chain two lower resolution DisplayPort monitors). Its connector is the same as mini-DisplayPort. It's small and convenient. Apple fit two TB 2 buses next to each other on my 13" MacBook Pro. Nice. Very high bandwidth, PCIe.
I don't want to plug a keyboard into this bus, because its overkill. Thunderbolt will probably never have any cost effective way to do a hub/star type topography. For general use lower bandwidth (haha, 1 gigabit is low bandwidth now!) peripherals I need USB. And my MacBook has that too. I wouldn't want it any other way.
That said, USB 3.0 seems like a ball of hurt compared to the difference between USB 1.0/1.1/2.0
Just look at the ads for USB 3 hubs. Most of them state which chipset revision they use, so you can look up whether or not your motherboard / OS will have difficulty with them. I built a FreeBSD 9.1 file server using usb 3 / usb 3 docks, but I failed them all back down to using their 2.0 interface due to persistent flakiness/dropping off the bus type issues. Rock solid on USB 2.0. YMMV, but I hope that USB 3 gets over its growing pains soon.
Amen to the "Ball of hurt".
I design USB3 H/W....what. a. piece. of. shit. I have truly given up hope of engineering anything that will ever work universally, even Intels interfaces which you would like to believe would be a model reference design look like crap when you plug them into a gizillion dollar Agilent USB3 analyzer. Should I be be surprised? Probably not, USB has never exactly been the premium interface has it? Firewire didn't go away because USB was technically superior thats for sure. Thunderbolt just friggin' works, day in, day out, incredible and reliable performance. Sure cables are expensive, they have all sorts of clever active electronics...because...thats what it takes to make 10G in a consumer application work...not a $1.99 piece of injection molded crap from god knows what Asian hell chemical works. In fact Thunderbolts worst problem is ....Intel.....who seem to have a bizarre attitude towards people who want to buy components from them to make peripherals...I honestly don't get it.
In the future, we will ship something WAY better than what Apple is shipping now, so obviously what Apple is shipping now is worthless.
You're confusing usefulness with relevance. Thunderbolt is, and will reman, irrelevant to PCs, largely because PCs have plenty of internal expansion capability and sufficient USB ports, Display Ports, HDMI ports, etc.
Correlation is not causation. What really made USB popular was when 2.0 came out, which was developed mostly by Intel and HP. At that point you could connect hard drives and get reasonable speeds, and hardware costs for slow devices like keyboards dropped too as HP found a way to do the timing required for USB 1.1 cheaply.
const int one = 65536; (Silvermoon, Texture.cs)
SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
You're confusing usefulness with relevance. Thunderbolt is, and will reman, irrelevant to PCs, largely because PCs have plenty of internal expansion capability and sufficient USB ports, Display Ports, HDMI ports, etc.
Not often I wish for mod points and don't have them, but this pretty much nails it.
Thunderbolt is solid technology - basically PCIe on a cable - but its relevance to machines that don't need PCIe on a cable (or provide an equivalent - ie: a docking station) is close to nil.
The use case for Thunderbolt on Macs, due to their typical design focusing on form factor over other factors, is reasonable.
The use case outside of Macs, is niche (to say the least).