Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | BenQ - PD2730S | LG - UltraGear 45GX950A-B |
|---|---|---|
| Peak brightness | 400 nits | 1300 nits |
| Refresh rate | 60 Hz | 165 Hz |
| Response time (GtG) | 5 ms | 0.03 ms |
| Screen size | 27 " | 45 " |
| USB-C Power Delivery | 96 W | 90 W |
| G-Sync | false | true |
Between the PD2730S and UltraGear 45GX950A-B, the PD2730S comes out ahead in usb-c power delivery, while the UltraGear 45GX950A-B wins on peak brightness / refresh rate. Overall, the PD2730S scores 65.6 and the UltraGear 45GX950A-B scores 81.4 on our Mars Score.
Which should you buy?
The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 15.8 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 PD2730S if you care most about usb-c power delivery. The biggest gaps in its favor are usb-c power delivery. The single most decisive one: USB-C Power Delivery — 6.67% more. 96 W vs 90 W.
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. Its strongest claims are peak brightness, refresh rate, response time (gtg), among others. The single most decisive one: Peak brightness — 225.00% more. 1300 nits vs 400 nits.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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: BenQ - PD2730S or LG - UltraGear 45GX950A-B?
LG - UltraGear 45GX950A-B leads the current Mars Score by 15.8 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 BenQ - PD2730S if…
BenQ - PD2730S has the measurable edge on has usb c pd w.
Choose LG - UltraGear 45GX950A-B if…
LG - UltraGear 45GX950A-B has the measurable edge on peak brightness nits, refresh rate hz, response time ms.
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 BenQ - PD2730S wins
- ▲USB-C Power Delivery — 6.67% more. 96 W vs 90 W.
Why LG - UltraGear 45GX950A-B wins
- ▲Peak brightness — 225.00% more. 1300 nits vs 400 nits.
- ▲Refresh rate — 175.00% more. 165 Hz vs 60 Hz.
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Screen size — 66.67% more. 45 " vs 27 ".
- ▲Has G-Sync.
- ▲Has FreeSync.
- ▲DCI-P3 coverage — 0.51% more. 98.5 % vs 98 %.
- ▲Panel type: OLED (vs IPS).
Spec comparison
Panel
| Spec | BenQ - PD2730S | LG - UltraGear 45GX950A-B |
|---|---|---|
| Screen size | 27 " | 45 "lead |
| Panel typeⓘ | IPS | OLEDlead |
| Resolutionⓘ | 5K | 5K |
| Aspect ratioⓘ | 16:9 | 21:9 |
| Curvedⓘ | false | truelead |
Performance
| Spec | BenQ - PD2730S | LG - UltraGear 45GX950A-B |
|---|---|---|
| Refresh rateⓘ | 60 Hz | 165 Hzlead |
| Response time (GtG)ⓘ | 5 ms | 0.03 mslead |
| Peak brightnessⓘ | 400 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 98 % | 98.5 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | false | truelead |
Connectivity
| Spec | BenQ - PD2730S | LG - UltraGear 45GX950A-B |
|---|---|---|
| HDMI ports | 1 | 2lead |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 96 Wlead | 90 W |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, PD2730S or UltraGear 45GX950A-B?+
UltraGear 45GX950A-B refreshes at 165Hz vs 60Hz.
Which has faster response time, PD2730S or UltraGear 45GX950A-B?+
UltraGear 45GX950A-B responds in 0.03ms vs 5ms.
Does PD2730S or UltraGear 45GX950A-B have USB-C with power delivery?+
Both offer USB-C PD — 96W on PD2730S, 90W on UltraGear 45GX950A-B.