When comparing Logitech G500 vs Corsair Vengeance M65 , the Slant community recommends Logitech G500 for most people. In the question“What is the best gaming mouse?” Logitech G500 is ranked 8th while Corsair Vengeance M65 is ranked 48th. The most important reason people chose Logitech G500 is:
This gaming mouse also comes with weights (6 weights of 1.7g, 6 weights of 4.5g) that can be added on with a maximum of 27g of weights at a time.
Specs
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Pros
Pro Adjustable weight
This gaming mouse also comes with weights (6 weights of 1.7g, 6 weights of 4.5g) that can be added on with a maximum of 27g of weights at a time.
Pro Thumb-rest
The Logitech G500 has more an edge on the left side for users to rest their thumbs.
Pro Braided cord
The Logitech G500 gaming mouse comes with a braided cable.
Pro Great for palm grip
Clearly designed specifically for palm grip.
Pro Onboard memory allows saving settings on the gaming mouse itself
The onboard memory will allow the user to store on custom profile no matter what PC they plug the device into.
Pro Dual-mode scroll wheel
This mouse has two scrolling modes - notched and freescrolling. The modes can be switched on-the-fly with a button located just below the scroll-wheel.
Pro The thumb buttons that are close enough together to be used in FPSs
Pro 10 programmable buttons
There are ten programmable buttons on the device.
Pro Horizontal click scroll wheel
The mouse wheel can be clicked down in the center or to the left and right. This created three different buttons in one.
Pro On-the-fly CPI switch on the side of the left click
There is a switch on the side that allows for on the fly CPI switching.

Pro Great value
Pro Sturdy mouse wheel
Pro Aluminium base with configurable weights
Pro Interesting futuristic design
The Corsair Vengeance M65 has a very interesting futuristic look to its design. With its metal core to the 3 plastic pieces on the outside of the frame and the over-sized scroll wheel.
Cons
Con Not produced anymore
Logitech G500 was replaced by G500s in 2013 and that in turn was replaced by the G502 Proteus Core in 2014.
Con Old

Con Too heavy even without weights
Con Scroll wheel is too loose
Clicking the scroll wheel is not precise and often the user will left or right click the wheel instead of actually clicking the center click.
Con Suffers from acceleration
All Avago ADNS-S9500 laser sensors suffer from acceleration issues and being that is the sensor used in the Logitech G500 it is a problem that this mouse suffers.
Con No driver for Mac

Con Bad Palm Grip
With a design that is not ergonomic at the back and side buttons that are so far out it is not a recommended mouse for a mouse user who prefers palm grip.
Con Has input lag and smoothing
Being that this device is using a laser sensor there is expected lag and smoothing.
