SvennoJ said:
dahuman said:
SvennoJ said:
ethomaz said:
RenCutypoison said:
It was said earlier that the BD driver would be faster than the HDD. Won't it be a problem ? I mean, on ps3 bluray games could put data on HDD, but the games on the HDD will be solwer on ps4 if that's the case. So won't psn games be slower ? |
That was my mistake... the HDD is at least twice fast than BD driver.
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And more. It's a 6x CAV drive which is better for seek times but read times are 2.4x slower when reading the inside of the disc.
6x CAV ps4 = 216 mbps / 27 MBs at the outer edge to 90 mbps / 11.25 MBs at the inner edge
2x CLV ps3 = 72 mbps / 9 MBs anywhere on the disk, seek times are much worse as the rotational speed has to change.
Don't worry too much about a loud drive, it doesn't spin that much faster then the ps3 drive at full speed (~4900 rpm vs ~3900 rpm). However it will always spin at that speed.
HDD install will be even more essential next gen to feed all that ram efficiently. The blu-ray drive will be better able to help this time with the lower seek times and the much faster outer track. 1st party games will benefit by using both hdd and optical drive. Use 1 layer for a fast initial install at 27MBs, use the other layer for fast data access while playing, and use the slower parts of the disc for fmv and background loading.
The question is whether 3rd party devs are going to bother since the next xbox is rumored to always do a full hdd install. Why optimize for disk plus hdd use if it's easier to have 1 version for both disc and digital distribution?
The 6x CAV kinda puts my hopes down for a 4K disc format to run on ps4. 90 mbps is not fast enough for disc quality 4K. Maybe in a couple years a ps4 slim will feature a 12x CAV drive for 4K disc playback. (max speed is about 10,000 rpm) (And it will need to be able to read 8 layer 200 GB discs ofcourse...)
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You know, that actually brings up an interesting question, I wonder what kind of drive is in the Wii U, we know it's basically 5x Blu Ray but they never said if it was CLV or CAV. Anyways, you are right about noise not being an issue since the Wii U is never loud at 5X.
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It's probably 5x CAV, a 5x CLV drive goes up to 10k rpm.
5x blu-ray is a weird statemant anyway as blu-ray needs a 1.5x CLV drive to sustain 54mbps. a 7.5x CLV drive doesn't even exist yet.
Playing lego city undercover certainly shows the need for HDD installs next gen, damn those loading times and that's only 1gb of ram with a drive that's at least very close in speed to what the ps4 will have.
It’s not the capacity of the discs we’re interested in, though. It’s the read speed – quoted at 22.5MB/s. This is fast enough to ensure we’re not hobbled with slow, mandatory installs that ruin Nintendo’s ethos of ‘immediate gaming.
22.5 MB/s yeah probably 5x CAV drive, so actually between 22.5 MB/s outer edge to 9.3 MB/s inner edge.
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Yeah that sounds about right, definitely not going to beat HDDs for now by far, I can also see Disc drives becoming less relevant as we move more into the DD space. I might just go DD only on Wii U and stop buying physical copies altogether for future purchases since USB2 HDD is still faster anyways(Already did for Monster Hunter and Need for Speed.) Will also do the same for PS4 if I ever buy one.
