Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - UltraGear 45GX950A-B | MSI - MAG 274URFDE |
|---|---|---|
| Peak brightness | 1300 nits | 600 nits |
| Response time (GtG) | 0.03 ms | 1 ms |
| Screen size | 45 " | 27 " |
| USB-C Power Delivery | 90 W | 98 W |
| DCI-P3 coverage | 98.5 % | 95 % |
| Refresh rate | 165 Hz | 160 Hz |
Between the UltraGear 45GX950A-B and MAG 274URFDE, the UltraGear 45GX950A-B comes out ahead in peak brightness / response time (gtg), while the MAG 274URFDE wins on usb-c power delivery. Overall, the UltraGear 45GX950A-B scores 81.4 and the MAG 274URFDE scores 69.9 on our Mars Score.
Which should you buy?
The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 11.5 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 peak brightness, response time (gtg), screen size, among others. The single most decisive one: Peak brightness — 116.67% more. 1300 nits vs 600 nits.
Pick the MAG 274URFDE if you care most about usb-c power delivery. Its strongest claims are usb-c power delivery. The single most decisive one: USB-C Power Delivery — 8.89% more. 98 W vs 90 W.
Both ship with comparable g-sync, 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 MSI - MAG 274URFDE?
LG - UltraGear 45GX950A-B leads the current Mars Score by 11.5 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 peak brightness nits, response time ms, screen size in.
Choose MSI - MAG 274URFDE if…
MSI - MAG 274URFDE has the measurable edge on 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
- ▲Peak brightness — 116.67% more. 1300 nits vs 600 nits.
- ▲Response time (GtG) — 97.00% less. 0.03 ms vs 1 ms.
- ▲Screen size — 66.67% more. 45 " vs 27 ".
- ▲DCI-P3 coverage — 3.68% more. 98.5 % vs 95 %.
- ▲Refresh rate — 3.13% more. 165 Hz vs 160 Hz.
- ▲Panel type: OLED (vs Rapid IPS).
Why MSI - MAG 274URFDE wins
- ▲USB-C Power Delivery — 8.89% more. 98 W vs 90 W.
Spec comparison
Panel
| Spec | LG - UltraGear 45GX950A-B | MSI - MAG 274URFDE |
|---|---|---|
| Screen size | 45 "lead | 27 " |
| Panel typeⓘ | OLEDlead | Rapid IPS |
| Resolutionⓘ | 5Klead | 4K |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | LG - UltraGear 45GX950A-B | MSI - MAG 274URFDE |
|---|---|---|
| Refresh rateⓘ | 165 Hzlead | 160 Hz |
| Response time (GtG)ⓘ | 0.03 mslead | 1 ms |
| Peak brightnessⓘ | 1300 nitslead | 600 nits |
| DCI-P3 coverageⓘ | 98.5 %lead | 95 % |
| HDRⓘ | true | true |
| G-Syncⓘ | true | true |
| FreeSyncⓘ | true | true |
Connectivity
| Spec | LG - UltraGear 45GX950A-B | MSI - MAG 274URFDE |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 90 W | 98 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, UltraGear 45GX950A-B or MAG 274URFDE?+
UltraGear 45GX950A-B refreshes at 165Hz vs 160Hz.
Which has faster response time, UltraGear 45GX950A-B or MAG 274URFDE?+
UltraGear 45GX950A-B responds in 0.03ms vs 1ms.
Does UltraGear 45GX950A-B or MAG 274URFDE have USB-C with power delivery?+
Both offer USB-C PD — 90W on UltraGear 45GX950A-B, 98W on MAG 274URFDE.