daviddave1 wrote:B the Gsync causes inputlag ( correct me if i am wrong please)
When GSYNC is used
properly, it can actually improve competitive scores in heavily-stuttery games such as PUBG.
GSYNC only adds excessive input lag when not configured correctly (e.g. framerates consistently hitting the max Hz), or used in games that don't really need GSYNC (e.g. CS:GO because it always likes to run at framerate exceeding refresh rates)
Also, consistent latency can be as important as absolute latency. Proper tweaking of GSYNC can make your latency more consistent too, since there can be wide fluctuations in latency with GSYNC if you haven't properly optimized GSYNC.
It's easier to aim with "consistent stable 4ms input lag" than "varying 2ms-8ms input lag". Know what I mean? Absolute input lag is not everything. And things like stutters can throw off your aiming, to the point where adding 1ms of input lag in exchange for "removing 4ms of randomness" can actually be a worthwhile tradeoff.
The rule of thumb for esports-quality GSYNC are:
1. Have as high a GSYNC refresh rate as possible (e.g. 240Hz GSYNC instead of 144Hz GSYNC) for maximum range; 240Hz GSYNC has much less lag than 144Hz GSYNC. You want your framerate range and refresh rate range to overlap. GSYNC stops benefitting you for framerate above/below your refresh rate range.
2. Use GSYNC mainly with games that has enough stutter to interfere with your aiming (fluctuating-framerate games that doesn't stay at max Hz). That means GSYNC won't benefit CS:GO as much as it benefits PUBG.
3. Use a frame rate cap slightly below Hz (e.g. 235-237fps) when enabling GSYNC to avoid the VSYNC ON latency. Use the in-game framerate capper, and cap a few frames per second below Hz. Capping allows you to avoid the sudden lag-increase effect when GSYNC turns into VSYNC ON when framerates hit 240fps@240Hz. By avoiding the max framerate, you keep GSYNC latency consistent since 240fps@240Hz GSYNC can have 1-to-2 refresh cycles more latency than 235fps@240Hz GSYNC -- so definitely cap to avoid max framerate.
Sometimes it's better to turn off GSYNC, but sometimes optimizing GSYNC can feel like a whole monitor upgrade, too.
That said, different GSYNC monitors can have less input lag than other monitors. Not all GSYNC monitors have the same lag, and a lower-lag GSYNC "Monitor B" can have less lag than a non-GSYNC "Monitor A". The lag penalty of GSYNC can be made quite insignificant to the point where the benefits of GSYNC helps you score more frags. However, your mileage will vary depending on the games you play, and your competitive techniques.
Now, you might have trained for VSYNC OFF for years, and are used to it. It certainly feels pretty good in CS:GO and older games that runs at several hundred frames per second, with extremely minor tearing. Now, in very fluctuatey-framerate games like PUBG, there are times where GSYNC actually feels like it helps aiming (fewer stutters = less erratic aiming), but one also must calibrate GSYNC for consistency latency to avoid those latency-change effects of hitting "framerate=Hz". Now, it doesn't help everyone, and maybe turning GSYNC off is better for you, but those people who say "I feel GSYNC lag" or "GSYNC hurt my scores" sometimes ends up meaning they didn't adjust GSYNC correctly.
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