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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Shape
    3. Portability
    4. Build Quality
    5. Weight
    6. Hand Size Recommendation
    7. Wireless Versatility
    8. Cable
    9. Mouse Feet
    10. In The Box
  5. Control
    1. Main Button
    2. Additional Buttons
    3. Click Latency
    4. CPI
    5. Sensor Latency
    6. Sensor Specifications
    7. Mouse Wheel
    8. Noise
  6. Operating System And Software
    1. Configuration Software
    2. Mouse Compatibility
  7. Comments

Razer Viper 8KHz vs Logitech Signature M650

Side-by-Side Comparison

Products

Razer Viper 8KHz
Logitech Signature M650

Tested using Methodology v1.5

Updated Dec 03, 2024 03:44 PM

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Amazon.com

Tested using Methodology v1.5

Updated Apr 05, 2024 01:21 PM

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Amazon.com
Razer Viper 8KHz Picture
Logitech Signature M650 Picture
  1. Recommended in 1 article:
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Variants

  • Viper 8KHz (Black)
  • Viper 8KHz (ESL Edition)
  • Signature M650 (Black)
  • Signature M650 (Graphite)
  • Signature M650 (Off White)
  • Signature M650 (Rose)

Our Verdict

Razer Viper 8KHz

Logitech Signature M650

The Razer Viper 8KHz and the Logitech Signature M650 are two very different mice. The Razer is a wired-only gaming mouse with a maximum polling rate of 8000Hz. Its click latency is much lower, and it has a much wider CPI range, within which you can precisely adjust the CPI in steps of 50. On the other hand, the Logitech is a wireless office mouse that connects via Bluetooth or its USB receiver. It's very quiet to use, and its software works on both Windows and macOS.

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Check Price

Black
Viper 8KHz
SEE PRICE
Amazon.com
Black
Signature M650
SEE PRICE
Amazon.com
ESL Edition
Viper 8KHz
SEE PRICE
Amazon.com
Graphite
Signature M650
SEE PRICE
Amazon.com
 
Off White
Signature M650
SEE PRICE
Amazon.com
 
Rose
Signature M650
SEE PRICE
Amazon.com

Main Differences for
Work

Threshold 

0.10

Work 

6.1
7.0

Wireless Versatility 
 

0.0
9.2

Mouse Compatibility 
 

8.3
10

Additional Buttons 
 

8.0
5.9

Full Comparison

Design

Style  

Style Picture  

Razer Viper 8KHz Style Picture
Logitech Signature M650 Style Picture

Type 
 

Standard
Standard

Coating 
 

Matte
Matte

Lighting Color  

RGB
No Lighting
Show Text 

Shape  

3D Model  

Razer Viper 8KHz 3D Model
Logitech Signature M650 3D Model

Length  

5.0" (127 mm)
4.2" (107 mm)

Width  

2.6" (66 mm)
2.4" (61 mm)

Height  

1.5" (38 mm)
1.5" (38 mm)

Grip Width 
 

62 mm
52 mm

Ambidextrous 
 

True Ambidextrous
Shape Only

Left-Handed Friendly 
 

Yes
Yes

Finger Rest 
 

No
No
Show Text 

Portability 
 

5.6
7.9

Portability picture  

Razer Viper 8KHz Portability picture
Logitech Signature M650 Portability picture

Box Volume 
 

19.47 in³ (319 cm³)
15.07 in³ (247 cm³)

Receiver Storing 
 

No
Yes
Show Text 

Build Quality 
 

8.0
8.0

Build quality picture  

Razer Viper 8KHz Build quality picture
Logitech Signature M650 Build quality picture
Show Text 

Weight 
 

8.3
7.6

Minimum Weight Picture  

Razer Viper 8KHz Minimum Weight Picture
Logitech Signature M650 Minimum Weight Picture

Lowest Weight 
 

69.8 g
79.2 g

Default Weight 
 

69.8 g
99.2 g

Weight Distribution 
 

Centered
Back-heavy

Extra Weights 
 

No
No
Show Text 

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

Razer Viper 8KHz Palm Grip Hand Recommendation
Logitech Signature M650 Palm Grip Hand Recommendation

Claw Grip Hand Recommendation 
 

Razer Viper 8KHz Claw Grip Hand Recommendation
Logitech Signature M650 Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation 
 

Razer Viper 8KHz Fingertip Grip Hand Recommendation
Logitech Signature M650 Fingertip Grip Hand Recommendation
Show Text 

Wireless Versatility 
 

0.0
9.2

Maximum Of Paired Devices 
 

Wired
2

Bluetooth 
 

No
Yes

Receiver 
 

No
Yes

Battery Type 
 

No Batteries
1x AA

Use When Charging 
 

No
No ( Single use batteries)

On/Off Activation 
 

None
Auto Off And On/Off Switch

Receiver Extender 
 

No
No

Battery Indicator  

No
Yes
Show Text 

Cable 
 

8.5
0.0

Cable Video  

Connectivity  

Wired
Wireless

Cable Length 
 

5.9 ft (1.8 m)
N/A

Cable Type 
 

Paracord-like
No Cable

Permanent Kink 
 

Yes
No

Port Type: Mouse End 
 

No Port
No Port

Port Type: PC End 
 

USB
No Port
Show Text 

Mouse Feet 
 

9.0
7.5

Mouse Feet picture  

Razer Viper 8KHz Mouse Feet picture
Logitech Signature M650 Mouse Feet picture

Gliding Experience 
 

Very Good
Ok

Material 
 

Virgin Grade PTFE
PTFE

Extra Included 
 

No
No
Show Text 

In The Box 
 

In the box picture  

Razer Viper 8KHz In the box picture
Logitech Signature M650 In the box picture
Show Text 
Control

Main Button 
 

Actuation Graph  

See details on graph tool
See details on graph tool

Force/Distances Graph  

See details on graph tool
See details on graph tool

Switch Type 
 

Optical
Mechanical

Switch Model 
 

Razer Optical Mouse Switch Gen 2
Not Specified
Show Text 

Additional Buttons 
 

8.0
5.9

Buttons Picture  

Razer Viper 8KHz Buttons Picture
Logitech Signature M650 Buttons Picture

Total Number Of Buttons 
 

8
5

Number Of Side Buttons 
 

4
2

Number Of Programmable Inputs  
 

18
3

Profile Switching Button 
 

Yes
No

Gesture Support 
 

No
Yes
Show Text 

Click Latency 
 

9.6
7.1

Latency Testing While Gaming  

Latency Data  

See details on graph tool
See details on graph tool

Expected Connection 
 

2.1 ms
12.1 ms

Wired 
 

2.1 ms
N/A

Receiver 
 

N/A
12.1 ms

Bluetooth 
 

N/A
14.4 ms
Show Text 

CPI 
 

9.8
8.2

CPI Video  

CPI Graph  

See details on graph tool
See details on graph tool

SRAV Close-Up  

Razer Viper 8KHz SRAV Close-Up
Logitech Signature M650 SRAV Close-Up

SRAV @ 1600 CPI 
 

-0.10%
1.98%

SRAV @ 800 CPI 
 

0.00%
0.21%

SRAV @ 400 CPI 
 

-0.17%
1.33%

SRAV @ Fixed CPI 
 

N/A
N/A

Precision Error Between Speeds 
 

0.32%
0.87%

Precision Error Between CPI 
 

0.32%
0.69%

Worst Tracking Error 
 

2.00%
3.44%

Minimum CPI 
 

100 CPI
400 CPI

Maximum CPI 
 

20,000 CPI
4,000 CPI

CPI Adjustment Steps 
 

50 CPI
N/A

Sensor Latency 
 

9.3
6.9

Sensor Latency Demonstration  

Sensor Latency Transition Graph  

See details on graph tool
See details on graph tool

Sensor Latency CPI Graph  

See details on graph tool
See details on graph tool

Delay To Start Of Movement 
 

11.2 ms
23.6 ms

Delay At Half Movement 
 

1.9 ms
15.1 ms

Delay To End Of Movement 
 

3.1 ms
18.8 ms

Sensor Specifications 
 

Sensor Technology 
 

Optical (LED)
Optical (LED)

Sensor Model 
 

Focus+
Logitech Advanced Optical Tracking

Works On Glass 
 

No
No

Minimum Lift Off Distance 
 

1.2 mm
1.2 mm

Maximum Polling Rate 
 

8000 Hz
125 Hz
Show Text 

Mouse Wheel 
 

Mouse wheel picture  

Razer Viper 8KHz Mouse wheel picture
Logitech Signature M650 Mouse wheel picture

Scroll Wheel Type 
 

Notched Wheel
Notched Wheel

Scroll Wheel Steps 
 

24 Steps
24 Steps

Scroll Wheel Tilt 
 

No
No

Thumb Wheel Type 
 

No
No

Thumb Wheel Steps 
 

No Thumb Wheel
No Thumb Wheel
Show Text 

Noise  

Noise Video  

Click Noise 
 

Quiet
Very Quiet
Show Text 
Operating System And Software

Configuration Software 
 

Software Tour  

Software Name  

Razer Synapse 3
Logitech Options+

Software Windows Compatibility 
 

Yes
Yes

Software macOS Compatibility 
 

No
Yes

On-Board Memory 
 

Yes
No

CPI (DPI) Adjustment  
 

Yes
Yes

Polling Rate Adjustment 
 

Yes
No

Profile Configuration 
 

Yes
Yes

Profile Auto-Switching 
 

Yes
Yes

RGB On/Off 
 

Yes
No RGB
Show Text 

Mouse Compatibility 
 

8.3
10

Windows Compatibility  

Fully
Fully

macOS Compatibility  

Partially
Fully
Show Text 

Check Price

Black
Viper 8KHz
SEE PRICE
Amazon.com
Black
Signature M650
SEE PRICE
Amazon.com
ESL Edition
Viper 8KHz
SEE PRICE
Amazon.com
Graphite
Signature M650
SEE PRICE
Amazon.com
 
Off White
Signature M650
SEE PRICE
Amazon.com
 
Rose
Signature M650
SEE PRICE
Amazon.com

Razer Viper 8KHz

Logitech Signature M650

Comments

  1. Comparison

Razer Viper 8KHz vs Logitech Signature M650: Main Discussion

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