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  1. Home
  2. Keyboard
  3. Compare
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Dimensions
    2. Build Quality
    3. Ergonomics
    4. Hardware Customizability
    5. Backlight Features
    6. Backlight Clarity
    7. Cable & Connector
    8. Wireless Versatility
    9. Macro Keys And Programming
    10. Extra Features
    11. In The Box
  5. Typing Experience
    1. Typing Quality
    2. Typing Noise
    3. Switches
    4. Keystrokes
  6. Performance
    1. Single-Key Latency
    2. Multi-Key Latency
    3. Data Transmission
    4. Chord Split
  7. Software and Operating System
    1. Configuration Software
    2. Computer Compatibility
    3. Wireless Mobile Compatibility
  8. Comments

Logitech G915 LIGHTSPEED vs Logitech G915 X

Side-by-Side Comparison

Products

Logitech G915 LIGHTSPEED
Logitech G915 X

Tested using Methodology v1.3.1

Updated Sep 13, 2024 05:05 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.3.1

Updated Dec 12, 2024 02:10 PM

SEE PRICE
Amazon.com
Logitech G915 LIGHTSPEED Picture
Logitech G915 X Picture
ConnectivityWireless
Size
Full-size (100%)
Switch Type
Mechanical
N-Key Rollover (NKRO)
Yes
Hot-Swappable Switches
No
ConnectivityWired
Size
Full-size (100%)
Switch Type
Mechanical
N-Key Rollover (NKRO)
Yes
Hot-Swappable Switches
No

Variants

  • G915 LIGHTSPEED (Black)
  • G915 X (Black)

Review

See Logitech G915 LIGHTSPEED Review
See Logitech G915 X Review
0 
0 

Our Verdict

Logitech G915 LIGHTSPEED

Logitech G915 X

The Logitech G915 X and the Logitech G915 LIGHTSPEED are low-profile mechanical gaming keyboards in the same product lineup. Both keyboards offer similar raw gaming performance, but the G915 X is a newer model with wired-only connectivity. It has slightly better build quality with a thicker aluminum top plate and higher-quality PBT keycaps. Comparatively, the G915 LIGHTSPEED is an older model with wireless connectivity and cheaper ABS keycaps, which are more prone to developing a shiny, slippery finish with extended use.

1 

Check Price

Black
G915 LIGHTSPEED
SEE PRICE
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Black
G915 X
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
SEE PRICE
Walmart.com
Black
G915 X
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
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Black
G915 LIGHTSPEED
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Main Differences for
Gaming

Threshold 

0.10

Gaming 

8.5
8.7
No major differences between these keyboards for gaming. See full list of tests below.

Full Comparison

Design

Dimensions 
 

Top Picture  

Logitech G915 LIGHTSPEED Top Picture
Logitech G915 X Top Picture

Size 
 

Full-size (100%)
Full-size (100%)

Height 
 

0.8" (2.1 cm)
0.8" (2.1 cm)

Width  

18.7" (47.5 cm)
18.7" (47.5 cm)

Depth 
 

5.8" (14.8 cm)
5.9" (14.9 cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

2.26 lbs (1.027 kg)
3.48 lbs (1.580 kg)
Show Text 

Build Quality 
 

8.0
8.5

Build Quality Close Up  

Logitech G915 LIGHTSPEED Build Quality Close Up
Logitech G915 X Build Quality Close Up

Keycap Material  

ABS
PBT
Show Text 

Ergonomics 
 

7.0
7.0

Side Picture  

Logitech G915 LIGHTSPEED Side Picture
Logitech G915 X Side Picture

Curved/Angled 
 

No
No

Split Keyboard 
 

No
No

Key Alignment 
 

Staggered
Staggered

Minimum Incline 
 

0°
0°

Medium Incline 
 

4°
4°

Maximum Incline 
 

8°
7.2°

Home Row Height 
 

21.5 mm (0.8")
21.5 mm (0.8")
Show Text 

Hardware Customizability 
 

3.9
5.7

Customizability Overview  

Logitech G915 LIGHTSPEED Customizability Overview
Logitech G915 X Customizability Overview

Replaceable Cherry Stabilizers 
 

Yes
Yes

Stabilizer Fixation 
 

Plate-Mounted
Plate-Mounted

Spacebar Stabilizer Size 
 

Non-Customizable Design
6.25u

Size Of Right Mod Keys 
 

Non-Standard
1.25u

Hot-Swappable Switches 
 

No
No

Switch Stem Shape 
 

Kailh Low Profile Choc
Low Profile Cherry MX Style

Switch PCB Socket 
 

Soldered
Soldered

North-Facing Cherry MX Interference 
 

Non-Customizable Design
Yes
Show Text 

Backlight Features 
 

10
10

Backlighting Picture  

Logitech G915 LIGHTSPEED Backlighting Picture
Logitech G915 X Backlighting Picture

Brightness Max  

Logitech G915 LIGHTSPEED Brightness Max
Logitech G915 X Brightness Max

Backlighting  

Yes
Yes

Brightness Min  

Logitech G915 LIGHTSPEED Brightness Min
Logitech G915 X Brightness Min

RGB 
 

Yes
Yes

Per-Key Backlighting 
 

Yes
Yes

Effects 
 

Yes
Yes

Software Controllable 
 

Yes
Yes
Show Text 

Backlight Clarity 
 

8.0
8.0

White Shot  

Logitech G915 LIGHTSPEED White Shot
Logitech G915 X White Shot
Show Text 

Cable & Connector  

Connectivity  

Wireless
Wired

Detachable 
 

Yes (Wired Mode and Charge)
Yes (Wired Only Keyboard)

Length  

6.1 ft (1.9 m)
5.9 ft (1.8 m)

Connector (Keyboard side) 
 

Micro USB
USB type-C
Show Text 

Wireless Versatility 
 

7.5
0.0

Bluetooth 
 

Yes
No

Bluetooth Multi-Device Pairing 
 

No
No

Proprietary Receiver 
 

Yes
No

Battery Type 
 

Rechargeable
No Batteries
Show Text 

Macro Keys And Programming 
 

8.7
7.6

Dedicated Macro Keys Count  

5
9

Onboard Macro Programming 
 

Yes
No

Macro Programming With Software 
 

Yes
Yes
Show Text 

Extra Features 
 

Extra Features  

Logitech G915 LIGHTSPEED Extra Features
Logitech G915 X Extra Features

Media Keys 
 

Dedicated
Dedicated

Trackpad / Trackball  

No
No

Scroll Wheel 
 

Yes
Yes

Control Knob 
 

No
No

USB Passthrough 
 

No
No

Numpad  

Yes
Yes

Windows Key Lock 
 

Yes
Yes

Lock Indicator  

Caps Lock
Caps & Num Lock
Show Text 

In The Box  

Bundle Picture  

Logitech G915 LIGHTSPEED Bundle Picture
Logitech G915 X Bundle Picture
Show Text 
Typing Experience

Typing Quality 
 

6.5
7.0

Key Spacing 
 

19.0 mm (0.748")
19.0 mm (0.748")
Show Text 

Typing Noise 
 

8.8
6.9

Typing Sample  

Average Loudness 
 

46.5 dBA
55.0 dBA

High Pitch Clicks 
 

No
No
Show Text 

Switches 
 

Wobble Video  

Switch Name 
 

GL Tactile
GL Linear

Switch Type 
 

Mechanical
Mechanical

Feel 
 

Tactile
Linear

Analog 
 

No
No

Keystrokes 
 

Key Switch Actuation Graph  

See details on graph tool
See details on graph tool

Operating Force 
 

54 gf
45 gf

Actuation Force 
 

51 gf
44 gf

Pre-Travel 
 

1.6 mm
1.4 mm

Total Travel 
 

2.7 mm
3.1 mm
Show Text 
Performance

Single-Key Latency 
 

9.1
9.0

Single-Key Latency Graph  

See details on graph tool
See details on graph tool

Best Connection 
 

3.7 ms
3.8 ms

Best Connection Std Dev  

±0.5 ms
±0.6 ms

Wired 
 

3.7 ms
3.8 ms

Receiver 
 

4.4 ms
N/A

Bluetooth 
 

10.7 ms
N/A

PCB (Estimated) 
 

2.4 ms
2.6 ms
Show Text 

Multi-Key Latency 
 

8.7
8.8

Latency Video  

Multi-Key Latency Graph  

See details on graph tool
See details on graph tool

Connection Evaluated  

Receiver
Wired

Key Press 
 

4.3 ms
3.7 ms

Key Release 
 

8.4 ms
9.4 ms
Show Text 

Data Transmission 
 

8.2
8.7

Multi-Key Raw USB  

Logitech G915 LIGHTSPEED Multi-Key Raw USB
Logitech G915 X Multi-Key Raw USB

Connection Evaluated  

Wired
Wired

USB Polling Rate 
 

1,000 Hz
1,000 Hz

Effective Update Rate 
 

1,000 Hz
1,000 Hz

N-Key Rollover (NKRO) 
 

Yes
Yes

Multiple Keys Per USB Report 
 

No
Yes
Show Text 

Chord Split 
 

8.0
7.8

Chord Split Graph  

See details on graph tool
See details on graph tool

4 Chord Split Delay 
 

5.0 ms
5.7 ms

8 Chord Split Delay 
 

14.6 ms
12.8 ms
Show Text 
Software and Operating System

Configuration Software 
 

Software Tour  

Software Name  

Logitech G HUB
Logitech G HUB

Software Windows Compatible 
 

Yes
Yes

Software macOS Compatible 
 

Yes
Yes

Onboard Memory 
 

Yes
Yes

Profiles 
 

6+
6+
Show Text 

Computer Compatibility 
 

10
10

Windows 
 

Fully Compatible
Fully Compatible

macOS 
 

Fully Compatible
Fully Compatible

Linux (Ubuntu 22) 
 

Fully Compatible
Fully Compatible

Media Key Compatibility 
 

Windows, MacOS & Linux
Windows, MacOS & Linux
Show Text 

Wireless Mobile Compatibility 
 

10
0.0

Android 
 

Fully Compatible
Not Compatible

iOS 
 

Fully Compatible
Not Compatible

iPadOS 
 

Fully Compatible
Not Compatible

Media Key Compatibility 
 

Android, iPhone & iPad
Not Compatible
Show Text 

Check Price

Black
G915 LIGHTSPEED
SEE PRICE
Amazon.com
Black
G915 X
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
SEE PRICE
Walmart.com
Black
G915 X
SEE PRICE
Amazon.com
Black
G915 LIGHTSPEED
SEARCH
B&H
 
Black
G915 LIGHTSPEED
SEARCH
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Back to Top

Logitech G915 LIGHTSPEED

Logitech G915 X

Comments

  1. Comparison
Active 4 months ago
 ·  • Posted 5 months ago

Logitech G915 LIGHTSPEED vs Logitech G915 X: Main Discussion

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  1.  • Posted 1 year ago

    We’ve purchased the product and are waiting for it to arrive in our lab.

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