$ Bottom line: Which one is better?
Bottom line: Samsung KS8000 is better.
Samsung KS8000 is better when we compare Sony X930D Vs Samsung NU8000 as it better picture quality, handles motion better, has low input lag, gets brighter and does well with HDR content.
Sony X930D Vs Samsung KS8000: DESIGN
Stand; the two TVs have stands
Borders; Sony X930D has 0.59”(1.5cm) while Samsung KS8000 has 0.28” (0.7cm)
Max thickness; not tested
Temperature; not tested.
Bottom line: Samsung KS8000 is better
Sony X930D Vs Samsung KS8000: PICTURE QUALITY
Native contrast; Sony X930D has 2843:1 while Samsung KS8000 has 6906:1
Local dimming; the two TVs have local dimming
SDR real scene peak brightness; Sony X930D has 499cd/m2 whereas Samsung KS8000 has 489cd/m2
HDR real scene pea brightness; Sony X930D has 888cd/m2 whereas Samsung KS8000 has 453cd/m2
Gray uniformity; Sony X930D has 6.5 while Samsung KS8000 has 7.5
50% Std. Dev; Sony X930D has 6.366% whereas Samsung KS8000 has 3.536%
50% DSE; Sony X930D has 0.198% whereas Samsung KS8000 has 0.165%
Viewing angle; Sony X930D has 4.9 while Samsung KS8000 has 4.7
Black uniformity; Sony X930D 7.2 while Samsung KS8000 has 9.9
Native std. Dev; Sony X930D has 1.209% whereas Samsung KS8000 0.432%
Reflections; Sony X930D has 9.0 Samsung KS8000 has 9.5
Screen finish; each TV has glossy
Pre-calibration; Sony X930D has 7.9 whereas Samsung KS8000 has 8.9
White balance dE; Sony X930D has 2.90 whereas Samsung KS8000 has 1.46
Color dE; Sony X930D has 2.39 whereas Samsung KS8000 has 1.64
Gamma; Sony X930D has 2.25 whereas Samsung KS8000 has 2.15
Post calibration; Sony X930D has 9.5 whereas Samsung KS8000 has 9.8
White balance dE; Sony X930D has 0.27 whereas Samsung KS8000 has 0.30
Color dE; Sony X930D has 1.17 while Samsung KS8000 has 0.21
Gamma; Sony X930D has 2.19 while Samsung KS8000 has 2.20
Bottom line: Samsung KS8000 is better
Sony X930D Vs Samsung KS8000: MOTION
Response time; Sony X930D has 9.1 whereas Samsung KS8000 has 7.8
Flicker-free; Sony X930D has 7.5 whereas Samsung KS8000 has 4.8
Optional BFI; the two TVs have this.
Motion interpolation; the two TVs have motion interpolation 30fps and 60fps.
Bottom line: Sony X930D is better
Sony X930D Vs Samsung KS8000: INPUTS
Input lag; Sony X930D has 5.5 whereas Samsung KS8000 has 9.0
Supported resolution; Sony X930D has 9.0 the same as Samsung KS8000.
Total inputs; each TV has 4 HDMI, 3 USB, 1 Digital optical audio out, 1 tuner (cable/Ant) and 1 Ethernet. Sony X930D has 1 IR in, 1 composite in, 1 component in and1 Analog audio out 3.5mm.
Inputs specifications; each TV has HDR10, CEC, HDCP 2.2 and HDMI 2.0 Full bandwidth. Sony X930D has Analog audio out and USB 3.0
Audio pass-through; the two TVs have ARC, Dolby and DTS
Bottom line: Samsung KS8000 is better
Sony X930D Vs Samsung KS8000: SOUND QUALITY
Low-frequency extension; Sony X930D has 160.00Hz whereas Samsung KS8000 has 84.76Hz
Max; Sony X930D has 87.9dB SPL whereas Samsung KS8000 has 92.2dB SPL
Distortion; Sony X930D has 7.6 whereas Samsung KS8000 has 7.5
Weighted THD @ Max; Sony X930D has 0.247 while Samsung KS8000 has 0.165
Bottom line: Samsung KS8000 is better
Sony X930D Vs Samsung KS8000: SMART FEATURES
Smart OS; Sony X930D operates on Android whereas Samsung KS8000 on Tizen (2018)
Interface; not tested
Ad-free; Sony X930D has ads while Samsung KS8000 is ad-free
Apps and features; the two TVs come with preinstalled apps and features.
TV controls; the two TVs have TV controls.
Bottom line: Samsung KS8000 is better
Conclusion
When we compare Sony X930D and Samsung KS8000 in this review, Samsung KS8000 is better because it has an enhanced picture quality, handles motion better, has low input lag, gets brighter and does well with HDR content.