New Fallout 4 Performance Analysis Shows Xbox One Outperforms PS4 ( NXG )

[SvennoJ]

The problem with games nowadays is that they rely on hdd access which is not a constant source.

HDD's run at constant angular velocity. Depending on where the game gets physically installed the read speed could be half of installing it on a clean drive. Factor in fragmentation and seek times suffer as well. Before developers could optimize the use of the blu-ray and dvd drive by duplicating data and putting much needed content of the faster outer track. Now it all depends on how full your drive already is and how fragmented it has become.

Then you have the OS doing background stuff accessing the HDD as well. Background downloads, gameplay recording, receiving messages, everything shares the same HDD.

So a game like Fallout 4 where the HDD is the bottleneck, you'll see all kinds of different performance on different systems. Best you can do is use an external SSD. That way the OS doesn't interfere with HDD access, plus SSDs don't suffer from getting slower after filling up.
If you're stuck on ps4, don't install the game on a hdd that's already nearly full. Turn off background downloads or best simply play offline. Or install an SSD, bit costly and you have to download all your games again.

This will solve all you problems for a measly $435 :)
http://www.amazon.com/Samsung-2-5-Inch-SATA-Internal-MZ-7KE1T0BW/dp/B00LF10KTE/ref=sr_1_3?s=pc&ie=UTF8&qid=1447436198&sr=1-3&keywords=samsung+850+pro
Or play on PC where windows will cache frequent disk access in system ram while you play.