Next gen AMD Ryzen Platform Likely to Integrate USB4 for Enhanced Connectivity
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mbk1969
So when will we see USB4 gaming keyboards and mice with 20000Hz of polling rate?
wavetrex
We definitely need that !
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4456887/
With the 220-250 ms (a quarter of a second) average reaction time for humans, that 0.05 ms tick interval will make all the difference in the world !
cucaulay malkin
available on x770-E starting at 350eur. yawn. give me more 3.2 20gbps instead on sub 200eur
mbk1969
Can you imagine how many times gurus stated that they need 1000Hz or higher polling rate because they manage to feel and utilize it.
(I am perfectly fine with my mouse and keyboard on 500Hz.)
tunejunky
lolz to mice and kb
external drives are entirely a different matter
i have a powered usb 3.2 hub but "i still have a need for speed"
and while i do have an add-in tb 4 card it was expensive and only has two ports
this would be a reason to buy an X or E mobo
Kaarme
I'm using a PS/2 keyboard from the late 90's. Since it's PS/2, it's interrupt based, meaning it doesn't generate latency due to polling.
Although that's not the reason I'm using it. I just haven't bothered to find a new keyboard I'd like. Over the years (or decades) I've bought two more modern USB keyboards but returned them immediately to the shops because I didn't like them.
H83
Is USB4 necessary for common folks? I don`t have any and i really don`t see the need for faster USB speeds, at lest for my case.
mbk1969
External storage should benefit from faster speeds.
rl66
You have to think more like TB4 on Apple device and how it have change a lot of things... If you keep thinking KB, mice, external storage, you only think 5% of what it could bring to you.
rl66
It is also for that there is still PS2 keyboard maker 🙂
Also when you push a key on PS2 the key is entered whatever happen...
(always have a mechanical PS2 kb around !!!)
mbk1969
Doesn`t TB4 brings faster speeds and hence proves my statement?
PS I am not familiar with Apple devices so I don`t know what exactly was changed with TB4...
tunejunky
right now the use case scenario is high speed external devices like external ssd or gpu (now that there's more variety with more to come).
the real kicker is if they enable tb4 on laptop cpu's as they're the dominant form factor and have the most need for external devices.
schmidtbag
Just curious but why do you need that level of performance for external drives?
If you're using a thin laptop and want to connect it to a dock, TB or USB4 are really handy since it's just 1 port to do everything. For every other average person, I would argue even USB 3.0 is rarely necessary. The only high-bandwidth USB devices that you're likely to encounter are NICs (but most devices nowadays have good built-in network ports or at least a M.2 slot to add one), video input devices (like webcams or HDMI inputs), and external storage (which is rapidly becoming obsoleted by network/cloud storage).
This is the kind of crap where I hate the direction of USB - it's getting so over-complicated to be literally universal to the point that it's not practical for anyone. But, I'm tired of ranting about how much I hate USB 3.1+.
user1
I will point out that average delay and fluidity are different things, after all ,I'm pretty sure people can tell the difference between 4fps(250ms) ,60fps (16.6ms) and 120fps (8.3ms), though noticing a difference between 1ms and 0.05ms, would be a stretch.
wavetrex
@user1 not really sure what you're trying to point out. USB poll rate is exactly about latency from action to reaction, it has nothing to do with any "framerate" or fluidity of anything.
Gamer sees the enemy appear on screen, takes on average 200-250 ms to react and press the mouse button or a key, USB with poll rate 500 adds another 2ms on top of that, then the rest of the pipeline might take another 40-50ms until the click or press is registered by the game. The USB latency is the least significant part of all of this, counting for less than 1% of the delay from observation to action registration.
Even with the basic 125 ticks/sec it would be exactly the same for all intents and purposes. Unless we can upgrade our eyes and brains to reduce that 200-250 ms reaction delay, no computer hardware will make us better gamers.
---
Anyway, it's going slightly offtopic... USB 4 is all about throughput, and I welcome its addition ! It will be nice to copy stuff to an external SSD at 2 GB/s !
user1
if you are tracking a target, having more polls will improve accuracy , naturally you dont really notice this with modern 500/1000hz peripherals, but if you've ever used a 100hz mouse which is still only 10ms delay, you'll know what i'm talking about
edit: another way to think about it ,is as the minimum interval where a change is detectable, so while your brain might be 250ms behind "real time" , it can still detect a sub <10ms change, as in if you swapped between a white and black frame, you would perceive some flicker until the interval is below ~2.5-5ms for most people, or if you move your mouse cursor around in a circle, you see after images, an optical illusion, and the number you see is directly connected to the polling rate of the mouse + refresh rate of the monitor, and you wouldn't exceed your ability to perceive a change , until it was a solid trail. without any individually identifiable cursor images.
Agonist
Cant most of the people that make these effin stupid comments about keyboards and mice. They did the same bullshit when USB 3.0 was coming out with other things as well.
rl66
It is not about the speed, but how it work: everything is more simple you need a more powerfull GPU, a faster lan, a NVMe, a new screen... in fact you can just plug 90% of anything.
With TB3 ,wich share same USB-C than TB4, there was some adjustement, as the external GPU, but with TB4 near everything are fine: just plug in 🙂
USB4 is more fast and reach acceptable speed and evolution to follow this path too (also we really need it 🙂 )
rl66
You can make chain of TB4, 2 port is most of the time 1 for the GPU/screen and 1 for everything else (but most add in card are so/so especialy with AMD...)
tunejunky
work.
very large files incl renders shuttled between work & home and thumb drives are too slow
