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posted by LaminatorX on Thursday March 06 2014, @12:20PM   Printer-friendly
from the satisying-clackity-clack dept.
An anonymous coward writes "Anyone know of good affordable keyboards that are low latency (preferably backed by actual stats)? Low latency is not the same as polling rate.

I had an old keyboard that was high latency (added about 30-50ms more latency when compared to a "gaming" mouse I had!) so I bought a low end "gaming" keyboard[1] which is lower latency but the keys "stick" sometimes (e.g. the system thinks keys are still being held down even though they aren't have to press the offending keys again to unstick them). I don't want to buy an expensive keyboard and find the latency to not be really much better or even worse[2]. And yes 30-50ms can be a noticeable and significant difference in games (2-3 frames).

I've done those reaction time test stuff and I get about 150-170ms using my "fastest" mouse (I have two), 170-190 with my new keyboard and 200+ms with my old keyboard. I see many people get 200+ ( see: http://cognitivefun.net/stat/1 ). At work on my employer's macbook pro I get 220+ms. So it's likely that high latency mice/keyboards[2] and screens[3] are too common. And you can appear to have 50-80ms faster reflexes just by having better equipment.

[1] an A4Tech G800V keyboard, based on one of the few less useless responses from the Other Site when I asked a similar question. Maybe it's faulty but it's going to be hard to prove since it's intermittent. FWIW I got it for half the newegg price and the place I bought it from doesn't sell A4tech mice or keyboards anymore.

[2] http://www.blackboxtoolkit.com/responsedevices.htm l
  http://www.pstnet.com/eprimedevice.cfm

[3] http://www.displaylag.com/display-database/"
 
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  • (Score: 3, Interesting) by hatta on Thursday March 06 2014, @03:58PM

    by hatta (879) on Thursday March 06 2014, @03:58PM (#12003)

    You'd think so, but top gamers really can notice one frame of lag. When it's the difference between landing a combo or not, it can't really be due to the placebo effect.

    It would be easy enough to test rigorously. By default MAME inserts a frame of lag in input handling. There's a MAME derivative ShmupMAME that removes this frame of lag for games that will work without it. ABX the two programs and see if the differences in score are statistically significant.

    Or you could do it in hardware, wire a delay into the controls of an arcade machine, and ABX whether it's activated or not.

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