Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Glorious - GMMK 3 Pro | Logitech - PRO X TKL RAPID |
|---|---|---|
| Hot-swappable | true | false |
| Rotary knob | true | false |
| Wireless | true | false |
| Size | 75% | TKL |
Between the GMMK 3 Pro and PRO X TKL RAPID, the GMMK 3 Pro comes out ahead in hot-swappable / rotary knob, while the PRO X TKL RAPID wins on size. Overall, the GMMK 3 Pro scores 95 and the PRO X TKL RAPID scores 56.6 on our Mars Score.
Which should you buy?
The GMMK 3 Pro is the clear pick on raw spec strength, leading by 38.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the GMMK 3 Pro if you care most about hot-swappable / rotary knob. The biggest gaps in its favor are hot-swappable, rotary knob, wireless. The single most decisive one: Has Hot-swappable.
Pick the PRO X TKL RAPID if you care most about size. Its strongest claims are size. The single most decisive one: Size: TKL (vs 75%).
Both ship with comparable polling rate, so those specs do not separate the two — focus on the differences below.
Bottom line: the GMMK 3 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Glorious - GMMK 3 Pro or Logitech - PRO X TKL RAPID?
Glorious - GMMK 3 Pro leads the current Mars Score by 38.4 points.The more useful decision is the trade-off behind that result: compare size, wireless, hot-swappable against the way you will actually use the product.
Choose Glorious - GMMK 3 Pro if…
Glorious - GMMK 3 Pro has the measurable edge on is hot swap, has knob, is wireless.
Choose Logitech - PRO X TKL RAPID if…
Logitech - PRO X TKL RAPID has the measurable edge on size.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Glorious - GMMK 3 Pro wins
- ▲Has Hot-swappable.
- ▲Has Rotary knob.
- ▲Wireless: true (vs false).
Why Logitech - PRO X TKL RAPID wins
- ▲Size: TKL (vs 75%).
Spec comparison
Switches
| Spec | Glorious - GMMK 3 Pro | Logitech - PRO X TKL RAPID |
|---|---|---|
| Switch type | Glorious Fox | GX Optical Linear Hall-effect |
| Hot-swappable | truelead | false |
Layout & Build
| Spec | Glorious - GMMK 3 Pro | Logitech - PRO X TKL RAPID |
|---|---|---|
| Size | 75% | TKLlead |
| RGB | true | true |
| Rotary knob | truelead | false |
| Case material | Aluminum | Aluminum |
Connectivity
| Spec | Glorious - GMMK 3 Pro | Logitech - PRO X TKL RAPID |
|---|---|---|
| Wireless | truelead | false |
| 2.4 GHz | truelead | false |
| Battery | 150 hlead | 0 h |
| Polling rate | 8000 Hz | 8000 Hz |