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Old May 25th 09, 09:27 AM posted to alt.comp.hardware.pc-homebuilt
Paul
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Posts: 13,364
Default The dpi in the optical Mice

CPU Brain wrote:
hi guys how are u all...

i wanna ask about the optical mouse i really love the pc game's and i
play it by the touch mouse in the laptop so after that i buy a desktop
((and its really good))

but i wanna now buy an optical mouse (Razer) so i found :

1000 dpi
2000 dpi
2500 dpi
4000 dpi

so what the different between the 1000 dpi mouse and the 4000 dpi
mouse ???
is it faster or play alone or what ?? because the different is 100
($) ??

Thanx Alot...


Find yourself a review first, so you can understand what impresses
people about them.

http://reviews.cnet.com/mice/razer-d...-32331184.html

The DPI is how finely divided the mouse makes the surface it is
traveling over. At 4000DPI, it means the X and Y counters are going
to accumulate 4000 counts when the mouse moves an inch. In terms of
aiming, it means very small hand movements, give a detectable change
as input to a game. So if you're trying to move the barrel of your
gun by one pixel, the high DPI can aid in getting to just the right
position. (But the resolution of the screen is the other limitation,
and sometimes a game won't let you point exactly where you'd like
to point.)

The polling rate, is how often the computer checks the mouse
for accumulated counts. Cranking the rate, makes your processor
work a tiny bit harder. But it also reduces the latency before
the computer finds out the mouse has moved.

http://www.firingsquad.com/matrix/bl..._G5_to_the_Max!

Some gamers worry about their mouse latency, but also the LCD
monitor has delay, between when the video signal goes into the
monitor, until the image appears on the screen. For FPS games,
stuff like that could be critical. Some LCD monitors have pretty
bad latency (measured in frame times). A CRT monitor, on the
other hand, is pretty immediate in its response.

Paul