I'm going to single out PlayStation. Please correct any mistakes or flat out wrong info.
Read speeds of all consoles
PlayStation: CD-ROM 300 KB/s (double speed), 150 KB/s (normal)
PlayStation 2: CD-ROM 3.6 MB/s [24x PS1], DVD 5.28 MB/s [35x PS1] (Select few PS2 games are on CD-ROM)
PlayStation 3: Blu-Ray 9 MB/s [1.7x PS2] [60x PS1]
PlayStation 4: Blu-Ray 27 MB/s [3x PS3] [5.1x PS2] [180x PS1], HDD ~50 MB/s inner layers 100MB/s outer layers + seek times (5.56 ms average latency [5400 rpm]) [5.6 - 11x PS3] [9.5 - 19x PS2] [333x - 667x PS1]
PlayStation 5: SSD: 5.5 GB/s [55 - 110x PS4] [611x PS3] [1042x PS2], 8-9 GB/s with compression [80 - 160x PS4] [889x PS3] [1515x PS2]
Needless to say, I'm super excited for this generation and look forward to seeing what developers can do with this kind of speed. I wanted to share this because I thought it would be interesting to compare generation to generation improvement for this. I always see RAM and GPU comparisons for this kind of stuff.
Seek times image:
Sources:
Read speeds of all consoles
PlayStation: CD-ROM 300 KB/s (double speed), 150 KB/s (normal)
- Not bad for 1994
PlayStation 2: CD-ROM 3.6 MB/s [24x PS1], DVD 5.28 MB/s [35x PS1] (Select few PS2 games are on CD-ROM)
- 35x faster than PS1! Now that's a huge improvement
PlayStation 3: Blu-Ray 9 MB/s [1.7x PS2] [60x PS1]
- 1.7x PS2, not so great an improvement. Reading from a spinning disc can only be increased so much which is why this generation mandated all installs to HDD, it's quicker...
PlayStation 4: Blu-Ray 27 MB/s [3x PS3] [5.1x PS2] [180x PS1], HDD ~50 MB/s inner layers 100MB/s outer layers + seek times (5.56 ms average latency [5400 rpm]) [5.6 - 11x PS3] [9.5 - 19x PS2] [333x - 667x PS1]
- 5.6 - 11x PS3, that's a nice jump. The reason every game you buy even physical discs is because reading from disc is slower than reading from your HDD. PS4 was not designed to read from disc, so you can pretty much ignore the Blu-Ray read speeds
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The disc installation is required on PS4 because the console is not designed to read games off of discs. It's not a PlayStation issue. It's a physics issue. The machine may have a Blu-Ray drive that's about three times faster than the PS3 and sixteen times as much memory, but it's still more expedient for the PS4 to read data from its own hard drive. Cerny said his team had heard too many complaints from current-gen developers about having to wait to load in new levels of games. Putting the data on the readily-accessible hard drive alleviates that. Kotaku
PlayStation 5: SSD: 5.5 GB/s [55 - 110x PS4] [611x PS3] [1042x PS2], 8-9 GB/s with compression [80 - 160x PS4] [889x PS3] [1515x PS2]
- Sorry PS1, you're too slow!
- That's 55 - 110x the speed of PS4 stock hard drive (seek times not taken into account)! Holy shit, that's a bigger jump than what it was from PS1 -> PS3, nearly double in some cases. PS4 -> PS5 is 2-4 times the jump from PS1 -> PS2
Needless to say, I'm super excited for this generation and look forward to seeing what developers can do with this kind of speed. I wanted to share this because I thought it would be interesting to compare generation to generation improvement for this. I always see RAM and GPU comparisons for this kind of stuff.
Seek times image:
Sources:
PlayStation technical specifications - Wikipedia
en.wikipedia.orgPlayStation 2 technical specifications - Wikipedia
en.wikipedia.orgPlayStation 3 technical specifications - Wikipedia
en.wikipedia.orgPlayStation 4 technical specifications - Wikipedia
en.wikipedia.orgHow Mandatory Game Installations Will Work On PS4
Call it installation or call it caching, but the bottom line is that you will have to save large chunks of PlayStation 4 games to the system's hard drive. It's not an option. It's mandatory on Sony's next-gen system. Today, at a stylish waterfront hotel in New York City that's been taken over by...kotaku.comHard disk drive performance characteristics - Wikipedia
en.wikipedia.orgUnveiling New Details of PlayStation 5: Hardware Technical Specs [UPDATED]
Watch live for a deep dive into PS5's system architecture and how it will shape the future of games.blog.us.playstation.com