1
00:00:00,320 --> 00:00:06,520
variable refresh rate or vrr has been one of the coolest pieces of tech to

2
00:00:04,200 --> 00:00:10,800
Grace our PCS over the past decade before vrr you could have really ugly

3
00:00:08,840 --> 00:00:15,080
screen tearing even with a high-end graphics card but vrr has largely

4
00:00:13,160 --> 00:00:20,000
eliminated this problem for gamers with recent Hardware however there's been a

5
00:00:17,439 --> 00:00:24,240
lot of confusion over what exactly vrr does and how it works so let's get right

6
00:00:22,119 --> 00:00:28,880
down to explaining it the basic premise of vrr is rather simple it matches up

7
00:00:26,800 --> 00:00:32,119
your monitor's refresh rate or how many times per second it's showing you a new

8
00:00:30,400 --> 00:00:37,079
image with the frame rate of your graphics card traditionally monitors

9
00:00:34,399 --> 00:00:42,440
would run at one constant refresh rate say 60 times per second or 60 htz but

10
00:00:40,320 --> 00:00:47,039
your gpus frame rate would swing considerably depending on how hard it

11
00:00:44,440 --> 00:00:51,840
had to work to render the action in the game you're playing at that moment this

12
00:00:49,199 --> 00:00:55,920
mismatch would often result in tearing where your monitor would essentially try

13
00:00:53,719 --> 00:01:00,519
to display multiple frames at once because the GPU has FedEd a new frame in

14
00:00:58,480 --> 00:01:04,640
the middle of a refresh cycle the historical solution to this problem

15
00:01:02,440 --> 00:01:08,799
was to use a feature called vertical sync or vsync which would lock your

16
00:01:07,159 --> 00:01:14,439
graphics card's frame rate to your monitor's refresh rate however if your

17
00:01:11,600 --> 00:01:20,320
GPU's frame rate Falls below your monitor's refresh rate vertical sync can

18
00:01:17,320 --> 00:01:22,640
cause stuttering as the GPU isn't

19
00:01:20,320 --> 00:01:27,079
finished rendering the next frame yet vrr adjusts what your monitor is doing

20
00:01:25,159 --> 00:01:32,360
instead making it a very attractive solution while it is still possible to

21
00:01:29,960 --> 00:01:36,600
get tearing if your frame rate exceeds your monitor's maximum refresh rate this

22
00:01:34,720 --> 00:01:41,799
can typically be solved by setting an FPS cap in your game settings but not

23
00:01:39,399 --> 00:01:46,439
all vrr is created equal as there are several different kinds of vrr buying

24
00:01:43,920 --> 00:01:51,600
for your attention there's Vasa adaptive sync which is an open source flavor of

25
00:01:48,240 --> 00:01:53,880
VR that works on a driver level AMD has

26
00:01:51,600 --> 00:01:58,439
free sync which is really just adaptive sync that AMD has tested and put their

27
00:01:56,159 --> 00:02:04,560
stamp of approval on then there's NVIDIA who has a group group of solutions under

28
00:02:00,880 --> 00:02:06,520
the g-sync umbrella g-sync on its own is

29
00:02:04,560 --> 00:02:12,160
a proprietary solution consisting of extra NVIDIA Hardware built into the

30
00:02:08,879 --> 00:02:14,160
monitor to handle VR processing the term

31
00:02:12,160 --> 00:02:18,959
gsync compatible on the other hand refers to an Adaptive sync screen

32
00:02:17,040 --> 00:02:24,120
without extra NVIDIA Hardware on the display but that was tested by NVIDIA to

33
00:02:21,840 --> 00:02:29,040
confirm it works well similar to AMD's freesync at the top of the NVIDIA food

34
00:02:26,200 --> 00:02:33,440
chain is g-sync Ultimate which includes fancier monitor ERS with better HDR

35
00:02:31,080 --> 00:02:37,480
support along with that special NVIDIA Hardware built-in compatibility is

36
00:02:35,760 --> 00:02:42,000
better than it used to be and that newer gsync displays that have the extra

37
00:02:39,400 --> 00:02:46,400
Hardware can now work with non- envidia graphics cards even though this wasn't

38
00:02:44,080 --> 00:02:51,879
always the case and the various flavors of adaptive sync should work on most

39
00:02:49,280 --> 00:02:57,159
modern gpus oh and vrr is part of the HDMI 2.1 spec and works similarly to

40
00:02:54,680 --> 00:03:02,319
Adaptive sync which is more of a DisplayPort thing still with me great will'll

41
00:03:00,120 --> 00:03:06,799
tell you whether spending extra money on a g-sync monitor is worth it right after

42
00:03:04,920 --> 00:03:10,519
we thank nexo whether you're Conquering the work from home world or joining

43
00:03:08,280 --> 00:03:15,440
virtual meetings nexco offers a diverse range of webcams to ensure you look your

44
00:03:13,040 --> 00:03:20,000
best on screen discover nexco hello cam equipped with Windows hello facial

45
00:03:16,920 --> 00:03:22,519
recognition for effortless login or take

46
00:03:20,000 --> 00:03:27,640
on your virtual Gatherings with nexo Iris the conference Beast supporting a

47
00:03:25,080 --> 00:03:31,080
powerful Sony starvis sensor whatever your webcam needs next go has you

48
00:03:29,280 --> 00:03:34,799
covered from Advanced features to top tier performance and don't forget to

49
00:03:32,879 --> 00:03:38,760
check out their Aurora Pro giveaway happening from February 1st to April

50
00:03:36,400 --> 00:03:45,239
30th learn more about nexo at the link below to go what vrr can be susceptible

51
00:03:42,879 --> 00:03:49,480
to motion blur or ghosting although this problem is not unique to vrr the issue

52
00:03:47,439 --> 00:03:54,120
is that displays can have a harder time compensating for it when vrr is enabled

53
00:03:52,519 --> 00:03:58,480
you see pixels have what's called a transition time to change from one shade

54
00:03:56,200 --> 00:04:02,799
of gray to another and even though we use color monitors we're talking about

55
00:04:00,519 --> 00:04:06,480
Shades of Gray Because the actual light usually passes through a color filter to

56
00:04:04,959 --> 00:04:10,280
create the final image that you see anyhow pixels are driven a certain

57
00:04:08,400 --> 00:04:14,760
amount so that they'll transition in a way that looks correct when your refresh

58
00:04:12,200 --> 00:04:19,519
rate is changing so often with VR you'll also have to change the amount that you

59
00:04:16,600 --> 00:04:24,680
drive the pixels and this can be tricky if you don't do it or don't do it right

60
00:04:21,479 --> 00:04:26,680
blurring or artifacting can occur vrr

61
00:04:24,680 --> 00:04:30,639
displays compensate for this by driving pixels a different amount or overdriving

62
00:04:28,880 --> 00:04:34,160
them depending on refresh rate determining the correct amount of

63
00:04:31,880 --> 00:04:39,039
overdrive requires extra processing and larger lookup tables which store the

64
00:04:36,880 --> 00:04:43,360
correct values the display should be using which brings us back to g-sync

65
00:04:41,520 --> 00:04:46,919
monitors with g-sync Hardware inside tend to do a better job with this extra

66
00:04:45,039 --> 00:04:51,039
processing and give you an image with less motion blur that's why the extra

67
00:04:49,160 --> 00:04:54,639
Hardware now of course we're not endorsing NVIDIA or telling you to go

68
00:04:53,080 --> 00:04:58,360
out and spend extra money on a g-sync monitor if you care more about

69
00:04:56,320 --> 00:05:02,000
preventing screen tearing and ghosting blur isn't something typically notice

70
00:05:00,360 --> 00:05:06,440
you might be completely happy with an Adaptive sync monitor that'll cost you

71
00:05:03,919 --> 00:05:10,080
less money now if you'll excuse me I got to tear out of here so thanks for

72
00:05:08,759 --> 00:05:14,800
watching guys if you like this video you might also like our video on Pixel

73
00:05:12,039 --> 00:05:19,919
cleaning how how does your OLED not burn in what does that setting do what is it

74
00:05:17,160 --> 00:05:19,919
check it out