Why is an ADNS-9500/ ADNS-9800 bad and a PMW3310 good? They both have acceleration?! - Overclock.net - An Overclocking Community

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Why is an ADNS-9500/ ADNS-9800 bad and a PMW3310 good? They both have acceleration?!

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post #1 of 101 (permalink) Old 06-06-2014, 04:41 AM - Thread Starter
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Hi!
My brother recently switched from a Steelseries Sensei to a Mionix AVIOR. I tried both of them for a few minutes and like the shape of both. However, I will only buy one of them. So I started reading through this forum and noticed that a lot of people here do not like the ADNS-9800, love the PMW3310, that the ADNS-9800 basically is an ADNS-9500 with more DPI and that the ADNS-9500's main issue is positive acceleration. "Okay i might go for the PMW3310 then!" - I thought. But after reading Ino's review on the NAOS 7000 I know that the PMW3310 also has acceleration.

So why is one sensor praised and the other one hated?
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post #2 of 101 (permalink) Old 06-06-2014, 05:32 AM
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the acceleration on the 3310 is a non issue because it is consistent and tiny. As long as acceleration is consistent, acceleration isn't inherently bad. And because it is so small, its virtually impossible to notice it through regular play, so if you dislike acceleration, you shouldn't have a problem with the sensor.

the 9800's sensor isn't consistent in the acceleration and is quite large, sometimes it will move farther then others when you move the mouse at the same speed, which makes it impossible to move the mouse consistently and precisely.
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post #3 of 101 (permalink) Old 06-06-2014, 07:07 AM - Thread Starter
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Thank you. I understand. REP+!
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post #4 of 101 (permalink) Old 06-06-2014, 07:38 AM
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Quote:
Originally Posted by on1z View Post

Hi!
My brother recently switched from a Steelseries Sensei to a Mionix AVIOR. I tried both of them for a few minutes and like the shape of both. However, I will only buy one of them. So I started reading through this forum and noticed that a lot of people here do not like the ADNS-9800, love the PMW3310, that the ADNS-9800 basically is an ADNS-9500 with more DPI and that the ADNS-9500's main issue is positive acceleration. "Okay i might go for the PMW3310 then!" - I thought. But after reading Ino's review on the NAOS 7000 I know that the PMW3310 also has acceleration.

So why is one sensor praised and the other one hated?

Atavax already said it, accel on 3310 is very minimal and more importantly consistent. Accel on 9500/9800 is not consistent.
It's not too bad, but it still is inconsistent and better avoided. There is a graph that gets thrown around usually with the Xai performance on a G-Pad, that is over exagerrated though as the G-Pad is a very specific glass pad. It's not as much of an issue on better capable surfaces.
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post #5 of 101 (permalink) Old 06-06-2014, 11:42 AM
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I've got a Sensei and an Avior lying around (9500 and 3310) and it's true, it's barely noticeable on the Avior but it is on the 9500.

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post #6 of 101 (permalink) Old 06-06-2014, 03:26 PM
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Furthermore, all optical mice have +-0.5% acceleration anyway, but the figure is 10x worse on the 9500 and 9800, 5% and very inconsistent.

Don't listen to anyone on here if they tell you otherwise; ALL 9500 and 9800 mice have this issue with inconsistent acceleration because it is baked into the low-level SROM associated with the sensor. Pixart would need to correct it, the manufacturers' firmware can't.

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post #7 of 101 (permalink) Old 03-11-2015, 01:19 AM
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Does the 3310 have more acceleration than the A3090 or AM010, or is it within the expectations of an optical sensor?
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post #8 of 101 (permalink) Old 03-11-2015, 02:19 AM
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Originally Posted by thrillhaus View Post

Does the 3310 have more acceleration than the A3090 or AM010, or is it within the expectations of an optical sensor?

 

Yes, Variance on the LED 9800 is higher than on certain other LED illuminated Alternatives under certain circumstances, if you notice it, is up to you.

 

As for the rest of the thread, lol.

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post #9 of 101 (permalink) Old 03-11-2015, 07:58 AM
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Quote: metal571 (Click to show)
Originally Posted by metal571 View Post

Furthermore, all optical mice have +-0.5% acceleration anyway, but the figure is 10x worse on the 9500 and 9800, 5% and very inconsistent.

Don't listen to anyone on here if they tell you otherwise; ALL 9500 and 9800 mice have this issue with inconsistent acceleration because it is baked into the low-level SROM associated with the sensor. Pixart would need to correct it, the manufacturers' firmware can't.

 

Skylit has been saying the acceleration (accuracy variance) is due to the specific illumination used with A9500 and A9800.

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post #10 of 101 (permalink) Old 03-11-2015, 08:02 AM
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So if pixart wants, can they make a laser sensor with consistent minimal acceleration? Or will it then stop being a laser sensor?
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