Lone_Canis_Lupus said:
souixan said:
Fishie said:
slimeattack said:
Anyone who thinks that blu-ray drives are slower check wikipedia. |
Just did, the wikipedia page does NOT mention any comparisons between dual speed blu ray and 12 speed DVD so I dont know why you mention it here as some sort of proof that BD is faster.
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Well okay let's do it this way, the spin speed is NOT an accurate way to determine read speed. As discs store more the info is more dense meaning it can read more by spinning less.
in effect a 1x DVD rom reads 10.5 MB/s a 1x Blu-ray drive reads 36MB/s by definition a blu-ray drive is about 3 times the read speed of a DVD drive.
Have some arbitrary rotation speed info! For a 12x dvd-drive Approx. 7,070 rpm (DVD-ROM single layer) Approx. 5,180 rpm (DVD-ROM dual layer) is expected. A 2x BD-drive spins at about 1,700RPM.
this means little to nothing on the read speed honestly the read speed is mostly defendant on the disc density and the capability of the drive. By definition a BD-drive reads faster but rotates slower reducing noise.
in perfect honesty the PS3s constant read speed with a 2x BD-drive is slower than a 12x DVD-drives -max- read speed by a little bit. I believe about 40mb/s but it is faster than a DVD-drive minimum read speed by about 15mb/s
Had Sony put a 4x drive in the PS3 the read speed on the PS3 would constantly surpass the 360's read speed.
Edit: Even if Xbox360's read speed for DVD-DL discs like stated above is only 8X even that would exceed a 2x BD drive at max read. This time the difference would be about 72mb/s for Blu-ray and about 90mb/s for DVD-DL however again BD wins over the minimum read speed for an 8x DVD by about 22 mb/s
Edit2: Let mes stress I say even if because I'm almost positive a DVD-DL read speed is about 2/3 of a DVD with a single layer. However not knowing exact specs for the 360's drive I will not say with 100% certinty.
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Thanks...and yeah, I have a feeling Sony will implement 4x or faster Blu-ray drives in PS3s a little further in the generation. |
Always happy to lend what I know to a conversation. Now I'm not a tech I don't work at sony or microsoft but I'm positive as it stands Blu-ray starts to really shine over DVD at 4x read speeds. Before that they're about the same to be completely honest with you.
Also keep in mind this is based on specs from the factories, this could all be based on perfect conditions only and actually be reduced across the board in real life use.
