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To put G-Sync to the test, I played Batman: Arkham Knight over the course of an hour, toggling the technology on and off. The anti-ghosting tech allows for faster color transitions in variable rate environments for near-instant rendering that produces smoother graphics overall. Variable Overdrive is another G-Sync benefit. In other words, fans of fighting games or multiplayer first-person shooters should be pleased. G-Sync also cuts down on input latency, the delay between entering and executing a command. Doing this eliminates annoying screen tearing effects or motion blurring incurred during normal gameplay movements such as making an abrupt turn. The new addition synchronizes the panel's refresh rate with the graphics card, capping the resulting frame rate at a consistent level. The X7 Pro-Sync is one of the latest gaming laptops to include Nvidia's G-Sync technology, a godsend for gamers who play titles that rely on fast reflexes. The Dominator Pro attempted to keep up at 34 fps, while the G751JY turned in an unplayable 20 fps. When set to very high at 1080p, the laptop delivered an impressive 63 fps, shattering the 28 fps average. The X7 Pro-Sync continued kicking ass and taking names on the Metro: Last Light benchmark. The ASUS G751JY or the MSI GT72 Dominator Pro (each powered by a single Nvidia GeForce GTX 980M GPU) mustered just 89 and 86 fps, respectively. The laptop roasted the 66 fps desktop replacement average during the BioShock Infinite benchmark, scoring 128 fps on high at 1080p. On high, I saw an average of 55 fps, which increased to 65 on normal. That jumped to 42 fps when I disabled HairWorks. The laptop delivered an average 36 frames per second when playing Witcher III.
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It also supports picture in picture or picture by picture, allowing you to display two sources at once, but this feature isn't available in HDR or if FreeSync is enabled. The Gigabyte M28U has a few additional features available, most of them gaming-oriented. We experienced the problem with our NVIDIA RTX 3070 and AMD RX 6800 graphics cards. This problem is only noticeable with high-frame-rate signals like 4k 144Hz 10-bit RGB that use DSC, and not at lower signals that don't require compression, as you can see here, but we can't be sure it's DSC causing the issue. We noticed a similar thing with the Gigabyte AORUS FV43U, although it's less visible on the M28U and not as consistent as sometimes it would be normal. We noticed a pixel inversion issue with pattern #3, which caused stripes to appear, almost in the same spot as the video.
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We couldn't replicate the issue with real content, so we tried to see if certain test patterns behaved the same. You can see in this video that there are color glitches with certain content. We received user reports about pixel inversion and color discoloration issues with high-frame-rate signals using Display Stream Compression (DSC). While running Windows ClearType can help improve text clarity a bit (top photo), it's not necessary, as text looks good even without it (bottom photo). The Gigabyte M28U has outstanding text clarity thanks to the high-resolution screen and high pixel density.