Am I experiencing Micro-stutter?

Rayne1995

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I got two ASUS r9 270x in cross fire and while playing watchdogs the game isn't as smooth as it is when I use a single card.
 
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My point exactly is that micro-stutter "feels" like lower FPS, even though technically the FPS fine. I believe the very reason tech journalists started looking into the phenomenon in the first place is because people did blind tests with Nvidia SLI & AMD CFX setups which were maintaining very similar frames per second. Despite the similar FPS, people consistently said that the Nvidia setup "felt" smoother. When they finally got to the bottom of it, it turned out that the Nvidia setup was delivering the same number of frames, but doing so more consistently. The people in tests perceived this as "smoother" gameplay.

Anandtech did an excellent...
Have you run FRAPS or something to measure your FPS? Some games because of driver issues actually run worse with CFX, so it might just be that you're getting lower FPS with crossfire enabled. However, if you're actually getting higher FPS, but the game subjectively "feels" like it's running slower, it's almost certainly micro-stutter.

Micro-stutter is inconsistent frames. So there may actually be plenty of frames per second, they're just been delivered so inconsistently that it's noticeable.
 

shadows1234

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i guess he isn't getting inconsistent frames since he said it wasn't as smooth
 

oczdude8

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YES. I HAVE THE SAME ISSUE WITH SLI. I actually get worse fps and tons of stuttering running SLI then if I enable a single card only. I thought they would have fixed it by now...................

Watchdogs was a let-down in many ways.

 

Rayne1995

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Yeah that's what I thought because the frames are pretty much the same the only diffrence aside from it not rnning smooth is that i can play it on high with msaa set too 4 or 8
 

Rayne1995

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If you're getting the same problem then maybe this game isn't meant for dual gpus
 


My point exactly is that micro-stutter "feels" like lower FPS, even though technically the FPS fine. I believe the very reason tech journalists started looking into the phenomenon in the first place is because people did blind tests with Nvidia SLI & AMD CFX setups which were maintaining very similar frames per second. Despite the similar FPS, people consistently said that the Nvidia setup "felt" smoother. When they finally got to the bottom of it, it turned out that the Nvidia setup was delivering the same number of frames, but doing so more consistently. The people in tests perceived this as "smoother" gameplay.

Anandtech did an excellent deep-dive on micro-stuttering here:
EDIT -> I linked the wrong page of the article, this page is better (same article, different page) http://www.anandtech.com/show/6857/amd-stuttering-issues-driver-roadmap-fraps/3

The point is that micro-stutter subjectively feels much the same as low frames per second, but they're actually not the same thing.

So for OP, either:
- the game and/or drivers don't handle crossfire well, and it's one of those few games where you're actually getting lower frames per second when you enable CFX -> this is NOT micro-stutter, it's just bad drivers/game coding

OR

- the game is actually running more frames per second with CFX enabled, but it "feels" like it's not smooth -> that IS micro-stuttering.
 
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Rayne1995

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That just maybe it cause when I play tomb raider and BF4 I easily get 60 fps and the game runs smooth as hell. But when I play watchdogs and FC4 It's no where smooth unless i put it on low to medium and my recommended is high