Can you provide a direct link for the SCIV claim? Everything I've seen indicates the PS3 loads faster than the 360 (as it should) after the optional HDD install.
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http://d.hatena.ne.jp/yoda-dip-jp/20080731#1217490078
Can you provide a direct link for the SCIV claim? Everything I've seen indicates the PS3 loads faster than the 360 (as it should) after the optional HDD install.
I have a question , how does the cache amounts change the performance of the drive. I notice on newegg there are some drives that have 2mb of cache and some with 512kb or less for dvd-rom drives. Bluray drives also have this. They range from 4MB to 8MBs . Could this have something to do with the relative performance of the two drives.
Yes it could, maybe we could dig up som pics of the PS3 bluray drive that showed cache chips? But i think the real issue has more to with how the developers store the data on the discs. Motorstorm is a good example on how not to do it. When you chose the vehicle you want to drive it´s annoying slow to load the graphics.
The BR drive is not slow, it´s the developers we have to blame.
Nesh said:That is strange. If there are data installed on the HDD, how can it still be slower?
You had to say that didn't you? Optimizing for dvd is identical to optimizing for blu-ray. The principles are all the same, minimize seeks, minimize layer changes, duplicate data if you have the room, etc. It's not as if blu-ray is an entirely new storage medium that runs on holographic cubes. It's an optical disc with a head that seeks back and forth over it just like dvd. Point being, it's not rocket science to optimize for it.
Because a lot of games use the cache available to them, either explicitly or by automatic SDK optimisations (detailed elsewhere in a PPT here).
That's maximum difference though, reading the outermost edge of the DVD. The innermost tracks are, IIRC, about a third the speed. So maybe about 30 Mbs. On average, the 8x DVD versus the 2x BRD isn't much difference, though I think BRD has a seek time advantage coz the tracks are closer. Then again it may have a seek time disadvantage as the head as bulkier!I don't know what speed the ps3 is that's why I posted 2x and 4x . But even so as you can see its slower than DVD. From a quick Google search I find its a 2x drive. Which means even it slower than the 360 drive which I believe is 12x single and 8x dual layer reading. I couldn't find anything about that with a quick Google search though. So if we go with 2x vs 12x your looking at 54Mbit/s speed difference.
None of which I'm managing to relate to the title of this thread at all well. The topic has drifted off. Might be time for a close.
Also, from what I remember seeing, the PS3 version of games are larger (whether that's due to less compression or just more code, I don't know). That would mean the BD drive would have to read more data than the DVD drive in the X360, if true.That's maximum difference though, reading the outermost edge of the DVD. The innermost tracks are, IIRC, about a third the speed. So maybe about 30 Mbs. On average, the 8x DVD versus the 2x BRD isn't much difference, though I think BRD has a seek time advantage coz the tracks are closer. Then again it may have a seek time disadvantage as the head as bulkier!
Anyway, this was covered a long time ago in detail by more learned people. Search the forum for the discussion. What I do remember is there wasn't a huge amount of difference on paper, such that no consensus was ever reached and we can still be debating this now! Looking at the current crop of software does show an advantage for XB360 though. On the flip side, it sounds like a dog. Given the choice between loud drone and slightly longer load times, I know which I prefer.
None of which I'm managing to relate to the title of this thread at all well. The topic has drifted off. Might be time for a close.
not sure, but audio quality in most PS3-x360 games not the sameThat would mean the BD drive would have to read more data than the DVD drive in the X360, if true.