Logitech K840 vs HyperX Alloy Core RGB

Which Keyboard Is Better?

Products

Logitech K840
HyperX Alloy Core RGB

Tested using Methodology v1.0

Updated Mar 13, 2025 04:51 PM

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Tested using Methodology v1.2

Updated May 03, 2023 09:19 PM

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Our Verdict

Logitech K840

HyperX Alloy Core RGB

The Logitech K840 is significantly better than the HyperX Alloy Core RGB. The Logitech has a better build quality thanks to its aluminum plate, and it has mechanical switches that feel light and responsive. The Logitech has software support for customization, but it doesn't have dedicated media keys like the HyperX, and typing noise can be louder if you bottom out the keys.

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Variants

  • K840 (Black/Gray)
  • Alloy Core RGB (Black)

Check Price

Black/Gray
K840
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Black
Alloy Core RGB
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Amazon.com
Black/Gray
K840
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BestBuy.com
Black
Alloy Core RGB
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BestBuy.com
Black/Gray
K840
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Walmart.com
Black
Alloy Core RGB
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B&H
Black/Gray
K840
B&H
Black
Alloy Core RGB
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Walmart.com
Black/Gray
K840
Logitech
Black
Alloy Core RGB
HyperX
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Main Differences for
Gaming

Threshold 

0.10

Gaming 
 

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Full Comparison

Design

Dimensions 
 

Top Picture  

Logitech K840 Top Picture Sample

SAMPLE

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HyperX Alloy Core RGB Top Picture Sample

SAMPLE

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Size 
 

Locked
Locked

Height 
 

Lock" (Lock cm)
Lock" (Lock cm)

Width  

Lock" (Lock cm)
Lock" (Lock cm)

Depth 
 

Lock" (Lock cm)
Lock" (Lock cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

Lock lbs (Lock kg)
Lock lbs (Lock kg)
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Build Quality 
 

N/A
N/A

Build Quality Close Up  

Logitech K840 Build Quality Close Up Sample

SAMPLE

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HyperX Alloy Core RGB Build Quality Close Up Sample

SAMPLE

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Keycap Material  

Locked
Locked
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Ergonomics 
 

N/A
N/A

Side Picture  

Logitech K840 Side Picture Sample

SAMPLE

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HyperX Alloy Core RGB Side Picture Sample

SAMPLE

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Curved/Angled 
 

Locked
Locked

Split Keyboard 
 

Locked

Key Alignment 
 

Locked

Minimum Incline 
 

Lock°
Lock°

Medium Incline 
 

N/A
N/A

Maximum Incline 
 

Lock°
Lock°

Home Row Height 
 

Lock mm (Lock")

Wrist Rest  

Locked
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Hardware Customizability 
 

N/A
N/A

Customizability Overview  

Logitech K840 Customizability Overview Sample

SAMPLE

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HyperX Alloy Core RGB Customizability Overview Sample

SAMPLE

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Replaceable Cherry Stabilizers 
 

Locked

Stabilizer Fixation 
 

Locked

Spacebar Stabilizer Size 
 

Locked

Size Of Right Mod Keys 
 

Locked

Hot-Swappable Switches 
 

Locked

Switch Stem Shape 
 

Locked

Switch PCB Socket 
 

Locked

North-Facing Cherry MX Interference 
 

Locked

Backlight Features 
 

N/A
N/A

Backlighting Picture  

Logitech K840 Backlighting Picture Sample

SAMPLE

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HyperX Alloy Core RGB Backlighting Picture Sample

SAMPLE

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Brightness Max  

Logitech K840 Brightness Max Sample

SAMPLE

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HyperX Alloy Core RGB Brightness Max Sample

SAMPLE

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Backlighting  

Locked
Locked

Brightness Min  

Logitech K840 Brightness Min Sample

SAMPLE

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HyperX Alloy Core RGB Brightness Min Sample

SAMPLE

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White Shot 
 

Logitech K840 White Shot Sample

SAMPLE

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HyperX Alloy Core RGB White Shot Sample

SAMPLE

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RGB 
 

Locked

Per-Key Backlighting 
 

Locked
Locked

Effects 
 

Locked
Locked

Software Controllable 
 

Locked
Locked

Color 
 

Locked

Color Mixing 
 

Locked
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Backlight Clarity 
 

N/A
N/A

White Shot  

Logitech K840 White Shot Sample

SAMPLE

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HyperX Alloy Core RGB White Shot Sample

SAMPLE

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Cable & Connector  

Connectivity  

Locked
Locked

Detachable 
 

Locked
Locked

Length  

Lock ft (Lock m)
Lock ft (Lock m)

Connector (Keyboard side) 
 

Locked
Locked
Show Text 

Wireless Versatility 
 

N/A
N/A

Bluetooth 
 

Locked
Locked

Bluetooth Multi-Device Pairing 
 

Locked
Locked

Proprietary Receiver 
 

Locked
Locked

Battery Type 
 

Locked
Locked
Show Text 

Macro Keys And Programming 
 

N/A
N/A

Dedicated Macro Keys Count  

Lock

Onboard Macro Programming 
 

Locked

Macro Programming With Software 
 

Locked

Extra Features 
 

Extra Features  

Logitech K840 Extra Features Sample

SAMPLE

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HyperX Alloy Core RGB Extra Features Sample

SAMPLE

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Media Keys 
 

Locked
Locked

Trackpad / Trackball  

Locked
Locked

Scroll Wheel 
 

Locked
Locked

Control Knob 
 

Locked

USB Passthrough 
 

Locked
Locked

Numpad  

Locked
Locked

Windows Key Lock 
 

Locked
Locked

Lock Indicator  

Locked
Locked

Macro Programmable Keys 
 

Locked
Show Text 

In The Box  

Bundle Picture  

Logitech K840 Bundle Picture Sample

SAMPLE

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HyperX Alloy Core RGB Bundle Picture Sample

SAMPLE

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Show Text 
Typing Experience

Switches 
 

Wobble Video  

Logitech K840 Wobble Video Sample

SAMPLE

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HyperX Alloy Core RGB Wobble Video Sample

SAMPLE

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Switch Name 
 

Locked
Locked

Switch Type 
 

Locked

Feel 
 

Locked
Locked
Show Text 

Keystrokes 
 

Key Switch Actuation Graph  

Logitech K840 Key Switch Actuation Graph Sample

SAMPLE

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HyperX Alloy Core RGB Key Switch Actuation Graph Sample

SAMPLE

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Key Switches 
 

Locked
Locked

Mechanical 
 

Locked

Feel 
 

Locked
Locked

Operating Force 
 

Lock gf
Lock gf

Actuation Force 
 

Lock gf
Lock gf

Pre-Travel 
 

Lock mm
Lock mm

Total Travel 
 

Lock mm
Lock mm
Show Text 

Typing Quality 
 

N/A
N/A
Show Text 

Typing Noise 
 

N/A
N/A

Typing Sample  

Logitech K840 Typing Sample Sample

SAMPLE

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HyperX Alloy Core RGB Typing Sample Sample

SAMPLE

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Average Loudness 
 

Lock dBA

High Pitch Clicks 
 

Locked

Noise 
 

Locked
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Latency 
 

N/A
N/A

Latency Video  

Logitech K840 Latency Video Sample

SAMPLE

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HyperX Alloy Core RGB Latency Video Sample

SAMPLE

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Latency Wired 
 

Lock ms
Lock ms

Latency Receiver 
 

N/A
N/A

Latency Bluetooth 
 

N/A
N/A
Show Text 
Software and Operating System

Configuration Software 
 

Software Picture  

Logitech K840 Software Picture Sample

SAMPLE

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HyperX Alloy Core RGB Software Picture Sample

SAMPLE

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Software Tour  

Logitech K840 Software Tour Sample

SAMPLE

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HyperX Alloy Core RGB Software Tour Sample

SAMPLE

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Software Name  

Locked
Locked

Software Windows Compatible 
 

Locked
Locked

Software macOS Compatible 
 

Locked
Locked

Onboard Memory 
 

Locked
Locked

Profiles 
 

Locked
Locked

Account Required 
 

Locked

Cloud Sync 
 

Locked

Macro Programming 
 

Locked

Ease Of Use 
 

Locked
Show Text 

Computer Compatibility 
 

N/A
N/A

Windows 
 

Locked
Locked

macOS 
 

Locked
Locked

Linux (Ubuntu 22) 
 

Locked
Locked

Media Key Compatibility 
 

Locked

Android  

Locked
Locked

iOS  

Locked
Locked

iPadOS  

Locked
Locked
Show Text 

Wireless Mobile Compatibility 
 

N/A
N/A

Android 
 

Locked
Locked

iOS 
 

Locked
Locked

iPadOS 
 

Locked
Locked

Media Key Compatibility 
 

Locked

Check Price

Black/Gray
K840
SEE PRICE
Amazon.com
Black
Alloy Core RGB
SEE PRICE
Amazon.com
Black/Gray
K840
SEE PRICE
BestBuy.com
Black
Alloy Core RGB
SEE PRICE
BestBuy.com
Black/Gray
K840
SEE PRICE
Walmart.com
Black
Alloy Core RGB
SEE PRICE
B&H
Black/Gray
K840
B&H
Black
Alloy Core RGB
SEE PRICE
Walmart.com
Black/Gray
K840
Logitech
Black
Alloy Core RGB
HyperX

Logitech K840

HyperX Alloy Core RGB

Comments

  1. Comparison

Logitech K840 vs HyperX Alloy Core RGB: Main Discussion

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