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Logitech G903 LIGHTSPEED vs Razer Viper 8KHz
Side-by-Side Comparison
Products
Logitech G903 LIGHTSPEED
Razer Viper 8KHz
Tested using Methodology v1.5
Updated Jan 27, 2025 07:04 PM
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Amazon.comTested using Methodology v1.5
Updated Dec 03, 2024 03:44 PM
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Amazon.com
ConnectivityWireless
TypeStandard
Default Weight111.0 g
AmbidextrousTrue Ambidextrous
ConnectivityWired
TypeStandard
Default Weight69.8 g
AmbidextrousTrue Ambidextrous
Variants
- G903 Lightspeed (Black)
- Viper 8KHz (Black)
- Viper 8KHz (ESL Edition)
Our Verdict
Logitech G903 LIGHTSPEED
Razer Viper 8KHz
Full comparison details regarding individual product score sets can be found in the section below
Main Differences forVideo Games (FPS)
Video Games (FPS)
Threshold
Video Games (FPS)
8.2
9.2
Weight
5.8
8.3
Click Latency
8.7
9.6
Sensor Latency
8.6
9.3
Full Comparison
Design
Style
Style Picture
Type
Standard
Standard
Coating
Matte
Matte
Lighting Color
RGB
RGB
Shape
3D Model
Length
5.1" (130 mm)
5.0" (127 mm)
Width
2.6" (65 mm)
2.6" (66 mm)
Height
1.6" (40 mm)
1.5" (38 mm)
Grip Width
61 mm
62 mm
Ambidextrous
True Ambidextrous
True Ambidextrous
Left-Handed Friendly
Yes
Yes
Finger Rest
No
No
Portability
5.6
5.6
Portability picture
Box Volume
20.08 in³ (329 cm³)
19.47 in³ (319 cm³)
Receiver Storing
No
No
Build Quality
8.0
8.0
Build quality picture
Weight
5.8
8.3
Minimum Weight Picture
Lowest Weight
106.7 g
69.8 g
Default Weight
111.0 g
69.8 g
Weight Distribution
Front-heavy
Centered
Extra Weights
Yes
No
Hand Size Recommendation
Palm Grip Hand Recommendation
Claw Grip Hand Recommendation
Fingertip Grip Hand Recommendation
Wireless Versatility
7.2
0.0
Maximum Of Paired Devices
1
Wired
Bluetooth
No
No
Receiver
Yes
No
Battery Type
Rechargeable
No Batteries
Use When Charging
Yes
No
On/Off Activation
Auto Off And On/Off Switch
None
Receiver Extender
Yes
No
Battery Indicator
Yes
No
Cable
8.0
8.5
Cable Video
Connectivity
Wireless
Wired
Cable Length
6.1 ft (1.9 m)
5.9 ft (1.8 m)
Cable Type
Braided
Paracord-like
Permanent Kink
No
Yes
Port Type: Mouse End
Micro USB
No Port
Port Type: PC End
USB
USB
Mouse Feet
7.5
9.0
Mouse Feet picture
Gliding Experience
Good
Very Good
Material
PTFE
Virgin Grade PTFE
Extra Included
No
No
In The Box
In the box picture
Control
Main Button
Actuation Graph
Force/Distances Graph
Switch Type
Mechanical
Optical
Switch Model
Not Specified
Razer Optical Mouse Switch Gen 2
Additional Buttons
8.3
8.0
Buttons Picture
Total Number Of Buttons
13
8
Number Of Side Buttons
4
4
Number Of Programmable Inputs
21
18
Profile Switching Button
Yes
Yes
Gesture Support
No
No
Click Latency
8.7
9.6
Latency Testing While Gaming
Latency Data
Expected Connection
5.0 ms
2.1 ms
Wired
4.1 ms
2.1 ms
Receiver
5.0 ms
N/A
Bluetooth
N/A
N/A
CPI
9.7
9.8
CPI Video
SRAV Close-Up
SRAV @ 1600 CPI
-0.15%
-0.10%
SRAV @ 800 CPI
-0.09%
0.00%
SRAV @ 400 CPI
-0.33%
-0.17%
SRAV @ Fixed CPI
N/A
N/A
Precision Error Between Speeds
0.16%
0.32%
Precision Error Between CPI
0.15%
0.32%
Worst Tracking Error
2.00%
2.00%
Minimum CPI
50 CPI
100 CPI
Maximum CPI
12,000 CPI
20,000 CPI
CPI Adjustment Steps
50 CPI
50 CPI
Sensor Latency
8.6
9.3
Sensor Latency Demonstration
Sensor Latency Transition Graph
Sensor Latency CPI Graph
Delay To Start Of Movement
13.2 ms
11.2 ms
Delay At Half Movement
5.2 ms
1.9 ms
Delay To End Of Movement
6.1 ms
3.1 ms
Sensor Specifications
Sensor Technology
Optical (LED)
Optical (LED)
Sensor Model
PixArt PMW3366
Focus+
Works On Glass
No
No
Minimum Lift Off Distance
1.2 mm
1.2 mm
Maximum Polling Rate
1000 Hz
8000 Hz
Mouse Wheel
Mouse wheel picture
Scroll Wheel Type
Notched Wheel + Free Wheel
Notched Wheel
Scroll Wheel Steps
24 Steps
24 Steps
Scroll Wheel Tilt
Yes
No
Thumb Wheel Type
No
No
Thumb Wheel Steps
No Thumb Wheel
No Thumb Wheel
Noise
Noise Video
Click Noise
Quiet
Quiet
Operating System And Software
Configuration Software
Software Tour
Software Name
Logitech G HUB
Razer Synapse 3
Software Windows Compatibility
Yes
Yes
Software macOS Compatibility
Yes
No
On-Board Memory
Yes
Yes
CPI (DPI) Adjustment
Yes
Yes
Polling Rate Adjustment
Yes
Yes
Profile Configuration
Yes
Yes
Profile Auto-Switching
Yes
Yes
RGB On/Off
Yes
Yes
Mouse Compatibility
10
8.3
Windows Compatibility
Fully
Fully
macOS Compatibility
Fully
Partially
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Logitech G903 LIGHTSPEED
Razer Viper 8KHz
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Logitech G903 LIGHTSPEED vs Razer Viper 8KHz: Main Discussion
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