4k not fitting screen windows 10

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5 May 2018
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Hi, I've been trying to set my resolution to 4096X2160 on windows 10 but it doesn't seem to fit the screen. It says native 3840X2160 and that works fine but since my tv and most games support 4096X2160 it should scale properly. I tried resizing the desktop display from the nvidia control panel and it seemed to work fine but then the native resolution automatically changes to 3808X2160. It also looks fine when I change the resolution to 4096X2160 in games. Resident evil 7 and Injustice 2 look great on it but I can't seem to change the native desktop resolution. Any idea on how to sort this or should I just leave it at 3840X2160. I'm using a sony xe90 4k tv and a gtx 1080ti card if that helps. I'm sure they both support the resolution I'm trying to use, thanks.
 
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Every standard - 2K, 4K, 8K is like this:

Format Resolution Display aspect ratio Pixels
DCI 2K (native resolution) 2048 × 1080 1.90:1 (256:135, ~17:9) 2,211,840
DCI 2K (flat cropped) 1998 × 1080 1.85:1 2,157,840
DCI 2K (CinemaScope cropped) 2048 × 858 2.39:1 1,755,136

https://en.wikipedia.org/wiki/2K_resolution

Examples of some 4K resolutions used in displays and media
Format
Resolution Aspect Ratio Pixels
- 4096 × 3072 1.33∶1 (4∶3) 12,582,912
- 4096 × 2560 1.60∶1 (16∶10) 10,485,760
- 4096 × 2304 1.77∶1 (16∶9) 9,437,184
DCI 4K (full frame) 4096 × 2160 ≈1.90∶1 (256∶135) 8,847,360
DCI 4K (CinemaScope cropped) 4096 × 1716 ≈2.39∶1 (1024∶429) 7,020,544
DCI 4K (flat cropped) 3996 × 2160 1.85∶1 (999∶540) 8,631,360
WQUXGA 3840 × 2400 1.60∶1 (16∶10) 9,216,000
4K UHD 3840 × 2160 1.77∶1 (16∶9) 8,294,400
- 3840 × 1600 2.40∶1 (12∶5) 6,144,000
- 3840 × 1080 3.55∶1 (32∶9) 4,147,200

https://en.wikipedia.org/wiki/4K_resolution

Resolution Display aspect ratio Megapixels
7680 × 2160 3.5:1 (32:9) 16.6
7680 × 3200 2.4:1 (24:10) 24.6
7680 × 4320 1.78:1 (16:9) 33.2
8192 × 4320 1.89:1 (17:9) 35.4
8192 × 5120 1.60:1 (16:10) 41.9
8192 × 8192 1.00:1 (1:1) 67.1

https://en.wikipedia.org/wiki/8K_resolution
 
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