Value of Hardware Unboxed benchmarking

[troyan]

I have only seen now that Hardwareunboxed used V-Sync while measuring the latency hit with MFG:

Quality content here...

 

[IQandHDR]

I have only seen now that Hardwareunboxed used V-Sync while measuring the latency hit with MFG:

Quality content here...

Gotta fit those numbers to their narrative, right

 

[dorf]

I have only seen now that Hardwareunboxed used V-Sync while measuring the latency hit with MFG

Is it wrong to use V-Sync with FG on a G-sync display? Reflex smartly limits the framerate just under monitor refresh rate so that V-sync doesn't add latency. Or maybe this incorrect and latency is added? If so, how much latency?

Or maybe the correct way is to go beyond monitors refresh rate?

 

[troyan]

V-Sync enabled in the App and Reflex limits the FPS slighty under the V-Sync limit of the VRR display. Running into V-Sync means buffering not only the next new one but the generated one, too. So latency increases massively over Reflex and V-Sync. Digitalfoundry has done a video about it two years ago:

 

[dorf]

V-Sync enabled in the App and Reflex limits the FPS slighty under the V-Sync limit of the VRR display. Running into V-Sync means buffering not only the next new one but the generated one, too. So latency increases massively over Reflex and V-Sync.

Does something indicate that Tim is hitting V-Sync limit and therefore drastically increasing latency?

I get very similar latency numbers in Cyberpunk as Tim is showing in his video when running 58 -> 116 FG on my 120hz display with a 4090 (57.7ms). This latency is similar with V-sync enabled or V-sync off but using Cyberpunk's internal fps limiter to stay just below 120. Therefore, I don't think Tim is hitting V-sync.

But maybe you have better information on this? What kind of latency number should we be seeing if Tim was testing properly?

 

[troyan]

Yeah, have tested it myself. Maybe not V-Sync.

But what he has done is just faking numbers. Limiting nativ 30 FPS and comparing this to nativ 120 FPS is nonsense and absolut dishonest. This even doesnt show the whole reality because the latency hit from MFG with an underutilized GPU is <= 1/5 (or around 6ms from baseline of 78ms+) of the frame. So MFG is basically free...

I can only repeat what i have said: This is a clickbait and hate channel.

 

[dorf]

Just for the record to dispell this lie about HUB-Tim using V-Sync to fudge numbers, Digital Foundry shows similar 50+ ms latency in Alan Wake 2 circa 60 -> 120. No reason to assume HUB's Their 30 -> 120 and 40 -> 120 latency numbers are fake either.

Faking numbers? Hate channel? Righto... I think the hate is coming from somewhere else, my friend.

Back to ignore list with you again. Keep well!

 

[troyan]

He is using base 30 FPS and compares it to nativ 120 FPS. This is basically faking. Like with the Raytracing video in which he has faked the stage so he can hate on Raytracing.

Nobody has ever advertised to limit the base FPS to 1/MFG-X and play with it. nVidia has compared the 5070 with MFG-4x to the 4090 with FG with DLSS performance in 4K.

 

[DegustatoR]

The method used by HUB for their video is highly dubious when it comes to latency measurements.
They say (as I understand it at least) that Nvidia recommended this method to showase native/FG/MFG differences on YouTube.
But I doubt that Nvidia has anywhere recommended measuring latencies with the same limitations active.

 

[GhostofWar]

Does something indicate that Tim is hitting V-Sync limit and therefore drastically increasing latency?

The bottom graph shows him hitting a vsynced 120hz to apparently compare latency at a comparable 120fps. If it was working properly with reflex active I would expect the frame gen fps cap to be like 117fps? The top graph is how DF tested latency and lines up, the bottom graph is useless at best and the only way to make that data useful is to tell the audience this is how not to use it.

Considering Tim should have access to higher refresh rate monitors using one of them might have actually represented a better end user case for x3 and x4 modes.

 

[Scott_Arm]

The bottom graph shows him hitting a vsynced 120hz to apparently compare latency at a comparable 120fps. If it was working properly with reflex active I would expect the frame gen fps cap to be like 117fps? The top graph is how DF tested latency and lines up, the bottom graph is useless at best and the only way to make that data useful is to tell the audience this is how not to use it.

Considering Tim should have access to higher refresh rate monitors using one of them might have actually represented a better end user case for x3 and x4 modes.

I hadn't really thought about this. I don't think you can disable reflex when frame gen is active, so the only think that makes sense is he had vsync disabled and a manual frame limit of 120. As long as you don't enable vsync, reflex won't automatically cap your framerate. That would have been an odd choice, but maybe it makes for better youtube presentation? Are you able to set frame limits in-game while frame gen is active?

Edit: The maybe worst answer is that the 120 average and base frame rate are made up because he didn’t want to explain why it was capped at 114 or something for all of them.