Originally Posted by Swoley2k
Vsync in computer terms syncs the refresh rate of a game or hardware accelerated application at the same refresh rate as the screen. So if fraps runs for a minute and the highest number it shows is 60 then the refresh rate is 60 or 75 or 85 or 120, etc. However Fraps will never exceed the refresh rate of the display due to vsync. It is a great way to test what the max refresh rate is on a display because video card hardware does not 'lie' so to speak in terms of fps whereas refresh rates and as you say the Sony display itself very well might.
The problem with applications like that is that it's relying on handshaking that could well be (and often is) a lie. You'll see this with monitors & tv's that are pushed past their documented specs; they often report back to the card what they're taking. But as discussed, this does not preclude the device from throwing away the frames on the way out. There is no way for an application to figure this out programmatically. You need to run an output test that tries to exercise the display in front of your eyes so you can see if and what frames might be discarded. This is not the "definitely feels faster" tests, but the purely objective "what box is missing" tests and the like.
I don't mean to stomp on your happiness with both feet here, it's very hard to know this because we're used to devices reporting on their own abilities. But when you go past the specifications, it's up to the vagaries of the algorithm, the hardware, and how much diet coke the software engineer was hopped on at 3am when he wrote it.
You might have ended up with a lucky display: Do report back. Run both tests I pointed out, and by all means contact Mark Rejhon with the results. Especially because people have been misinterpreting those results as well. But I suspect many of us are pretty much resigned here to there being a lot of "woo hoo it works!" posts followed by "dang". :-/
However, it COULD be discarding frames which would be a different story. While this is unlikely due to me testing not only 120fps but CONTANT 120fps its still another test to confirm. I'll do both the online test and the RRM when I get home.
Edited by tgm1024 - 7/31/13 at 11:22am
If I understood the tests as described, the tests you ran won't tell you about frame discard at all. When you get home, let us know what you find, and what the resulting output "looks like" when you run it.