Refresh rate needs a GPU that can feed it
A 240Hz or 360Hz monitor only helps if your graphics card can consistently push frame rates that high in the games you play. Match the monitor's refresh rate to what your GPU can realistically sustain, or you're paying for headroom you won't use.
Response time affects motion blur, not input lag
Response time (measured in ms, often as GtG) describes how fast pixels change color โ lower means less motion blur/ghosting during fast movement. This is a separate spec from input lag, which is about how quickly your actions appear on screen.
Panel type is a genuine tradeoff
IPS panels give the best color accuracy and viewing angles but historically the slowest response times (this gap has narrowed significantly). VA panels give the best contrast/black levels but can show more motion blur. TN panels are fastest and cheapest but weakest colors and viewing angles.
Adaptive sync eliminates screen tearing
G-Sync (Nvidia) and FreeSync (AMD, often broadly compatible) sync the monitor's refresh rate to your GPU's frame output, eliminating tearing without needing to cap frame rate. Confirm your GPU brand's compatibility before assuming either works.
Do I need a 240Hz+ monitor?
Only if your GPU can consistently produce frame rates in that range for the games you actually play. A high refresh rate monitor paired with a GPU that caps out at 100fps won't show much benefit over a 144Hz panel.
IPS, VA or TN โ which should I pick?
IPS for the best all-round color and viewing angles (now with response times close to TN on many gaming-focused models), VA for the deepest contrast/black levels, TN for the absolute lowest price and fastest raw response time at the cost of color accuracy.
Does G-Sync/FreeSync matter if I already have high FPS?
Yes โ even at high frame rates, adaptive sync prevents screen tearing during frame rate fluctuations, which is common in demanding scenes regardless of your average FPS.