Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - UltraGear 45GX950A-B | ASUS - ProArt PA32UCXR |
|---|---|---|
| Response time (GtG) | 0.03 ms | 5 ms |
| Screen size | 45 " | 32 " |
| Refresh rate | 165 Hz | 120 Hz |
| Peak brightness | 1300 nits | 1600 nits |
| USB-C Power Delivery | 90 W | 96 W |
| G-Sync | true | false |
Between the UltraGear 45GX950A-B and ProArt PA32UCXR, the UltraGear 45GX950A-B comes out ahead in response time (gtg) / screen size, while the ProArt PA32UCXR wins on peak brightness / usb-c power delivery. Overall, the UltraGear 45GX950A-B scores 81.4 and the ProArt PA32UCXR scores 66.2 on our Mars Score.
Which should you buy?
The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 15.2 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 UltraGear 45GX950A-B if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are response time (gtg), screen size, refresh rate, among others. The single most decisive one: Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
Pick the ProArt PA32UCXR if you care most about peak brightness / usb-c power delivery. Its strongest claims are peak brightness, usb-c power delivery. The single most decisive one: Peak brightness — 23.08% more. 1600 nits vs 1300 nits.
Both ship with comparable freesync, so those specs do not separate the two — focus on the differences below.
Bottom line: the UltraGear 45GX950A-B 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: LG - UltraGear 45GX950A-B or ASUS - ProArt PA32UCXR?
LG - UltraGear 45GX950A-B leads the current Mars Score by 15.2 points.The more useful decision is the trade-off behind that result: compare screen size, refresh rate, panel type against the way you will actually use the product.
Choose LG - UltraGear 45GX950A-B if…
LG - UltraGear 45GX950A-B has the measurable edge on response time ms, screen size in, refresh rate hz.
Choose ASUS - ProArt PA32UCXR if…
ASUS - ProArt PA32UCXR has the measurable edge on peak brightness nits, has usb c pd w.
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 LG - UltraGear 45GX950A-B wins
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Screen size — 40.63% more. 45 " vs 32 ".
- ▲Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
- ▲Has G-Sync.
- ▲DCI-P3 coverage — 0.51% more. 98.5 % vs 98 %.
- ▲Panel type: OLED (vs IPS).
Why ASUS - ProArt PA32UCXR wins
- ▲Peak brightness — 23.08% more. 1600 nits vs 1300 nits.
- ▲USB-C Power Delivery — 6.67% more. 96 W vs 90 W.
Spec comparison
Panel
| Spec | LG - UltraGear 45GX950A-B | ASUS - ProArt PA32UCXR |
|---|---|---|
| Screen size | 45 "lead | 32 " |
| Panel typeⓘ | OLEDlead | IPS |
| Resolutionⓘ | 5Klead | 4K |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | LG - UltraGear 45GX950A-B | ASUS - ProArt PA32UCXR |
|---|---|---|
| Refresh rateⓘ | 165 Hzlead | 120 Hz |
| Response time (GtG)ⓘ | 0.03 mslead | 5 ms |
| Peak brightnessⓘ | 1300 nits | 1600 nitslead |
| DCI-P3 coverageⓘ | 98.5 %lead | 98 % |
| HDRⓘ | true | true |
| G-Syncⓘ | truelead | false |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | LG - UltraGear 45GX950A-B | ASUS - ProArt PA32UCXR |
|---|---|---|
| HDMI ports | 2 | 3lead |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 90 W | 96 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, UltraGear 45GX950A-B or ProArt PA32UCXR?+
UltraGear 45GX950A-B refreshes at 165Hz vs 120Hz.
Which has faster response time, UltraGear 45GX950A-B or ProArt PA32UCXR?+
UltraGear 45GX950A-B responds in 0.03ms vs 5ms.
Does UltraGear 45GX950A-B or ProArt PA32UCXR have USB-C with power delivery?+
Both offer USB-C PD — 90W on UltraGear 45GX950A-B, 96W on ProArt PA32UCXR.