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Comment by Xcelerate | Hacker News Reader

I gave it a shot in Safari (instead of Chrome). Worked better, but still not perfectly lucid. I'm on a RMBP with GPU active. Anyone else with this configuration having stuttering?

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'11 MBP and it's smooth as butter... thinking about it though perhaps JS support at that resolution is pushing it too hard.

Chrome 21 on the rMBP is incredibly under-optimized. I've switched to using Chrome Canary and browsing is much more fluid.

iOS+Mac Safari, Chrome are okay. Firefox is sort of ok. Opera not so much. Webkit seems to be doing a good job.

(checked on iPad, iPhone , MacBook air, iMac)

It's almost perfect on my machine. (Same as yours.)

Perfectly smooth on a '12 MBA under chrome.

It works fine on my iPhone4 too.

Seriously? As in if you recorded a video and looked at each frame, every one would be distinct from the previous frame? Why can't a RMBP run it then?

The rMBP's graphics card is, from my understanding, somewhat underpowered given the number of pixels it has to push. I've heard fairly widespread reports of its framerate in graphics-intensive situations being less than desirable.

The iPhone or MBA, on the other hand, have far fewer pixels to push around.

Also, it seemed totally smooth on my mid-2010 iMac running 10.8.1 with Safari 6.

It's probably due to most browser rendering engines not being tuned to handle that kind of resolution.

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