PCB lag database using Is It Snappy

[Aurich]

This is thrown around a lot. The CRT is shown as “zero lag” because it shows the signal it’s given instantly. That’s true at the top, and the center, and the bottom. Before the beam reaches the bottom of the screen, the signal for the bottom does not yet exist.

That's fair, but if we're comparing measurements from the center of the screens the CRT isn't zero at the center in the comparison. That's really my only point, trying to make an apples to apples comparison. This LCD isn't 9ms laggier than the CRT, it's 2ms.

I personally think it's better to take measurements from the top, because otherwise it muddies the waters, even if the center somehow feels more 'fair' to how we view things. But whatever you do it should be done equally if we're comparing.

If you think I'm mis-stating things though I'm open to being schooled.

 

[Mrhide]

Sorry guys, you are losing me here!

 

[alamone]

Edit the OP to note that I switched to using in-game testing and subtracting the LCD lag from each measurement.

Added the following to the list:

In the Hunt
Nemesis
Raiden DX
Raiden Fighters JET
Strikers 1945 III
Truxton II (PCB and MiSTer core with and without VRR)

 

[Hatsune Mike]

That's fair, but if we're comparing measurements from the center of the screens the CRT isn't zero at the center in the comparison. That's really my only point, trying to make an apples to apples comparison. This LCD isn't 9ms laggier than the CRT, it's 2ms.

I personally think it's better to take measurements from the top, because otherwise it muddies the waters, even if the center somehow feels more 'fair' to how we view things. But whatever you do it should be done equally if we're comparing.

If you think I'm mis-stating things though I'm open to being schooled.

Sure, I think we're mostly on the same page. I just want to make it extremely clear to passers-by that a traditional direct CRT isn't just called "no latency", it is as close to no latency as we can realistically achieve, and that comparing the LCD and CRT at the top of their rasters doesn't give the CRT any unfair edge nor disadvantage.

I like rtings a lot, but the use of the center of the screen might cause people to think that the CRT somehow has lag mid-screen that other display types won't have.