In this post, we’re addressing two gaming keyboards in the Logitech G family—the versatile G512 X and the competition-grade PRO X TKL RAPID. Many of their shared features, like KEYCONTROL, Multi-Point Actuation, Rapid Trigger, are as potent in an esports arena as they are in a friendly Valorant Deathmatch. But their differences will determine which best suits your style.  

So first, know your specs:

 

The G512 X and PRO X TKL Rapid actually share a similar technological foundation, despite their distinct design philosophies. For starters, neither board compromises on speed and both rely on low latency wired connections ensuring each command reaches the server without a hint of delay. They both offer highly customizable actuation, thanks to advanced magnetic sensor technologies, so they unlock the same robust suite of G HUB features. This shared ecosystem guarantees that regardless of which board sits on your desk, you can fully customize multiple key assignments via KEYCONTROL, for example, and coordinate your lighting setups with LIGHTSYNC RGB. So while their physical architectures serve different playstyles, the uncompromising level of control they hand over to the player is exactly the same.

The PRO X TKL RAPID is a fixed-configuration keyboard with Hall Effect switches—the de facto technology in competitive gaming keyboards. It’s a TKL (Tenkeyless) board so most people will be familiar with its layout. 

The G512 X is the first Logitech G keyboard to use TMR (Tunnel Magnetoresistance) analog sensors. While both Hall Effect and TMR are contact-free and measure tiny magnetic fields within the switch, TMR sensors can be more sensitive than traditional Hall Effect sensors (more on this below). For the G512 X, perhaps design flexibility is the most noticeable upside to TMR technology as it allows magnetic analog switches and traditional mechanical switches to coexist on the board’s 39 Dual Swap keybeds. 

In addition to the 39 Dual Swap keybeds, the G512 X also packs a few hardware exclusives worth mentioning:

Dual Dials –  Two programmable dials let you control any function you’d assign to a shortcut like weapon swap or inventory use and of course volume and RGB control. 

SAPP Rings – The G512 X comes with Second Actuation Pressure Point (SAPP) rings stored in the keyboard and work with the Multi-Point Actuation by giving just the right amount of tactile feedback between the first and second command of a keystroke.

While the PRO X TKL RAPID doesn’t have dials, it does have a scroll wheel that controls the volume on your PC in its default setting, but like the multimedia keys sitting next to it, you can remap it to whatever function you want through G HUB. 

The PRO X TKL RAPID comes in the familiar Tenkeyless configuration, so there’s no numeric keypad, or “numpad” as some refer to it. But everything else is right where you’d expect and as its layout is fixed, it stays that way. 

The G512 X comes in two layouts: a compact 75 version and a full size 98 for those with desk space and prefer a number pad. But the magic is less about where the keys are, so much as what’s underneath them. Both versions of the G512 X have 39 Dual Swap hybrid beds that accept magnetic analog switches or standard mechanical switches simultaneously. As of this writing, this is the only Logitech G keyboard with this unique capability. 

Okay, things are about to get a little nerdy, so hang in there…

Both Hall Effect and TMR keyboards use magnets to measure exactly how far each key is pressed. That enables adjustable actuation and Rapid Trigger, which are great.

Hall Effect measures changes in voltage as the key’s magnet moves and has been the undisputed baseline keyboard tech in esports since about 2024. But it can sometimes be like trying to measure the height of a wave while the ocean is moving. TMR takes a more precise reading down to the fraction of a millimeter. It also draws less power making it the logical choice if/when keyboards all go wireless. Both are at the forefront of analog technology and we are not going to settle the argument of which is “better,” except to say that a well-designed wired Hall Effect keyboard is just as capable as a TMR keyboard. 

The PRO X TKL RAPID is a Hall Effect keyboard. It’s stable, reliable, and well-understood. Esports organizations trust it because it works—every time, in every environment.

The G512 X is a hybrid TMR keyboard in the sense that it can run both analog and mechanical switches at the same time. TMR enables that.

Choose the G512 X if:

• You’re the type of person who wants a truly customizable typing experience, aesthetically and functionally.

• You want the ability to mix TMR analog and traditional mechanical switches on the same board.

• You understand and will take advantage of a True 8K report rate.

Choose the PRO X TKL RAPID if:

• You’re a competitive FPS player who needs a battle-tested, fixed-configuration tool built for the rigors of esports.

• You want consistent, proven magnetic Hall Effect technology across every key with no variables.

• You prefer a standard TKL footprint that travels well and feels exactly the same wherever you play.

 

While different in many ways, both keyboards have LIGHTSYNC RGB and are capable of running features: KEYCONTROL, Multi-Point Actuation, and Rapid Trigger. 

Ultimately, the choice comes down to whether you want a fixed-configuration esports weapon or a modular platform you design around how you play. As long as you keep playing.