New discovery: Xbox 360 version of sf4 series has different timing from arcade/ps3/pc

Give me time. I said I would post videos within 48 hours. This was all tested on a high speed camera (720p @60 fps) on the same monitor (evo monitor) and analyzed frame by frame. V sync turned off on pc is exactly 2 frames faster than all other versions which is an exact match for 360 known speed difference with ps3.

So the TL:DR version is basically stuff we already knew. Especially since IIRC test of this nature were already conducted confirming that the 360 version was 2 frames faster.

What exactly is wrong with turning off VSync on PC then? It caps the frame rate at 60 anyway so it’s not like you have to be worried about tearing.

I never knew about the Xbox version running slightly faster than arcade (only play on one from time to time).
I only suspected it was different.

The problem with the PS3 version is it drops frames, variably from 0-4.

In addition the PS3 suffers from graphical slowdowns on certain stages. On top of that lag.

So you better had pick the training stage all the time lol

Ps3 is much worse for me personally as my Plasma is laggy by 3 frames :frowning:

Yes the 360 version has been known and tested to be 2 frames faster than the ps3 version for some time. What was not known was that ps3, original arcade, and PC versions all run at the same timing and that 360 is actually the anomaly. It is true that the game caps itself at 60 fps no matter what so you see very little almost non existant screen tearing but this could lead to some visual anomalies and your visual cues for timing links would theoretically not be as consistent compared to versions that have true v sync enabled. It also means that anyone that doesn’t play exclusively on Xbox 360 would be completly out of whack with the 2 frame faster timing. V sync guarantees a locked visual frame reference that should actually make links easier under different circumstances.

how do you know the arcade version matches PS3? did you actually test the arcade version yourself?

“make links easier” doesn’t work when the ps3 version drops frames

Yup, I have the Taito Type X2 version running on my pc. When I post videos (probably tomorrow) you will see the menu’s and icons from the arcade version comparing to ps3, and pc version all matching perfectly with the Xbox version being the only one to not match.

I keep seeing this argument being brought up. I have proof of my claims that I will be posting soon (university work comes first) and there are many sources that prove the xbox-ps3 timing difference but I have never seen a single video or documented demonstration of the ps3 version dropping inputs/frames. I am not counting netplay. What does dropping frames even mean precicely? Are you refering to the frame rate droping below 60fps? I would love to actually see some proof of the ps3 version doing this in an offline setting. So far all I’ve ever heard is rumors. I saw more dropped links this evo played on 360 than I’ve ever seen on the evo’s played on ps3s.

All I see on the video you posted is the usual 2 frame difference between the two versions. Where are you getting information about dropped frames? I’ve only noticed slow-down when playing online under bad network conditions but I haven’t played the Ultra version offline in a while, so I would have to re-check.

Then your eyes are broken? The video shows periods longer than 2f.

Also don’t like the idea of testing arcade version through emulation.

Is your PC built with the exact same hardware as an arcade machine?

they might be close or the same, but I think it’d be worthwhile for someone to test on an actual arcade cab and see if they’re the same. does anyone around here have access to a SF4 cab? I’m not sure how you ran your test but all anyone would need is a high speed camera and an LED to test input lag from button press to move startup. should be fairly cheap to set up a test and confirm results.

also anyone know what monitor SF4 cabs use and have those been tested for visual lag separately?

Not only is it not the same arcade hardware, the way cabs link up is through a router which has been said to create input lag.

In that video it shows its a variable frame difference. Its not 2 frame difference, its the PS3 thats actually dropping the frames because of whatever reason (maybe the CPU cant cope
with the SF4 engine).

At one point it drops 3 frames and Ive read its known to drop 4 frames.

If you want to see slowdown, in an offline match pick Hugo vs Hugo and pick the India stage. Watch it struggle to cope.

Anyway I got no objection to what your doing though, its always useful to have more info.

You’re blind if you’ve never seen the lag offline on the PS3 version of USFIV.

Also, using the TT2 X on PC to measure is pointless because you need the same monitor. To make matters worse, the Vewlix L (Blue cab) lags more than the Vewlix F (Red cab) because of the difference in monitors.

I’m sorry but the evidence does’t back this up. I just rewatched that youtube video for what feels like the 100th time and there are no dropped frames. Every frame observed on the X-Box side can be see two frames later on the ps3 side (look at the explosions on Balrog’s dash punches). If frames were being dropped than the playstation side should be ahead of the xbox side by the end of the video. I’ve watched the whole video and it is always a 2 frame difference. And this is over a youtube video that is not always frame accurate. Furthermore I just came back from playing Hugo vs Hugo on the India stage on ps3 (original 60gb) over many matches and see no evidence of slow-down except possibly one time for a few frames upon the transition to an Ultra 1 grab (this is during the cinematic and doesn’t affect gameplay at all). This is no worse than the Xbox version occasionally freezing to load during a transition to an Ultra cinematic (Ken’s Ultra 1 is a good example that I’ve seen many xbox’s freeze to load).

Typically when a games frame rate drops below 60 it is VERY noticeable on fighting games and the more I test this stuff the more I am sure that people are just assuming the xbox version is running better because it’s 2 frames ahead of other versions which is purely due to botched v-sync implementation.

Could I be wrong? Perhaps I could be on the Playstation 3 slow down issue but I want to see real proof that this happens during offline matches during gameplay moments, which I’ve seen none of during my own tests or any footage. The dropping frames theory even more unplausable but I guess I could be wrong. I would need to see evidence. The xbox running 2 frames faster than every other version due to botched v-sync is a FACT that has already been proven against ps3 and I will upload videos later today showing the same vs pc, and Taito Type X-2. This is a CONSTANT 2 frame difference that is different from every other version of the game and could lead to mistimings and missed visual cues

Apologies for the double post above. Maybe I’m blind then but please link to any video showing ps3 slowdown during an offline match.

I am fully aware of the Vewlix L cab lagging more than the Vewlix F cab due to using different monitors. That fact has no bearing because I am testing all versions on the same monitor (original Evo). I am testing game input timing not monitor input lag. If I am not mistaken the standard Vewlix L cab has 2f input lag while the F cab has 1f input lag. I guess in theory if you played the Xbox version on monitors with 3-4 frames input lag you would match the other versions but that is not ideal.

Furthermore, upon rewatching the video (for the 101st time) I do see occasions where the difference is color coded to be 1 or 3 frames instead of the usual 5 but in those occasions the pause is too late and it could be errors of starting to count too late. Also if there is a difference between 1-3 instead of the standard 2 than the most likely culprit would again be the XBOX version due to lack of proper v-sync giving a plus or minus 1 frame. When V-sync is not properly implemented the Frame Buffer can randomly display an image 1 frame sooner or later than usual.

The only way to test this would be to compare the ps3 version to the pc and arcade version and if I again see a complete match in frames than we have further proof that this is again the xbox botching things up with wonky v-sync. If the ps3 version fails to match the other versions than indeed the ps3 version is dropping frames.