Max. refresh rate
Dell G2724D165 Hz
iiyama G-Master GB2771QSU-B1200 Hz
27-inch QHD: compare the method too
Editorial specification comparison · checked 23 October 2026
Both screens have 2560 × 1440 QHD resolution, with different maximum refresh rates. The iiyama reaches 200 Hz over DisplayPort; its specified HDMI maximum is 144 Hz at that resolution.
Do not rank the response figures directly: Dell uses GtG in Extreme mode, while iiyama specifies MPRT. They are different tests. Seek independent motion-clarity and overshoot measurements.
Check computer outputs and cables. Laptop docks also need sufficient bandwidth for your resolution and Hz. A USB-C hub port does not establish laptop charging support.
Compare all specification differences ⇄What changes?
The differences at a glance
Manufacturer facts for these exact variants. The order does not declare a performance winner.
Max. refresh via HDMI at native resolution
Dell G2724DUnknown
iiyama G-Master GB2771QSU-B1144 Hz
Response time method
Dell G2724DGtG, Extreme mode
iiyama G-Master GB2771QSU-B1MPRT
G2724D: 5 unknown fields · G-Master GB2771QSU-B1: 3 unknown fields. Unknown does not mean absent.
Check the connection behind the Hz
The maximum refresh rate can depend on the input and resolution. MPRT and GtG are different response-time methods; a lower number across these methods is not proof of a faster panel. USB-C data ports do not automatically charge a laptop. Check documented Power Delivery and video support.