I'm resurrecting this thread. I do apologize!
This post is intended to clarify a few thing about the PS3 networking card and it's bandwidth capabilities.
I've seen various posts around the internet about the PS3 Network Interface Card and whether or not it's capable of gigabit speeds. Many people say it is not capable of gigabit speeds although SONY advertises it as such. I have seen reports that the PS3 is limited to a realistic speed of 70mb/s or somewhere around 10MB/s.
I'm sure you will be happy to know, it most definitely is capable of gigabit speeds!
The problem that SONY and the PS3 community at large should be investigating is WHEN THE PS3 IS CAPABLE OF GIGABIT SPEEDS!
The PS3 supports 400mb/s or 50MB/s or more bandwidth! This is actually faster than my gigabit laptop patched directly to my gigabit media server! The PS3 is not limited by hardware!
*For the newbies: you will only see speeds on your local network. Gigabit ethernet will not speed up your internet connection since it is only a fraction of the speed of your local connection in the first place.*
The first requirement, you need the hardware for gigabit speeds. All networking devices (NIC's, Router, Switch, AP or anything else in the circuit) needs to be 10/100/1000 certified. Ethernet cable needs to be atleast cat5e (cat 6 is not required.) If you only have a cat5e patch cable (typical ethernet cable you buy at Walmart) you can patch your Ps3 directly to your media server PC directly for testing purposes.
*Theoretical vs realistic network speeds. Theoretically, gigabit ethernet should have 1000mb/s or 128MB/s maximum bandwidth. Realistically, I expect about 400mb/s or 50MB/s maximum throughput. This is a result of cpu speed, harddrive speeds, signal interference and planetary alignment. Everything that could impact performance in the real world.
The second requirement, you need the software for hosting a file sharing server for the PS3 (and other devices.) You can use Windows Media Streaming built into Windows 7 or you can download and run PS3 Media Server. Both work well, but you need PS3 Media Server to support .mkv!
THE FIRST BIG LIMITATION, you will only see these speeds when you stream a file type that the PS3 is compatible with.
The test, monitor your bandwidth on your PC media server! Open Task Manager on the PC running the media server. Select the Networking tab for your bandwidth graph. On the PS3 open up a 1080p .mp4 and press Square button. Move through the content as it seeks on the PS3 and watch your Task Manager on the PC. You will see gigabit speeds!
We all know (sadly) the PS3 is not Divx Plus HD cerified. This means the PS3 does not support the BEST and most efficient container format for ripping your Blurays! To play .mkv we need to transcode first using PS3 Media Server. Anything transcoded cannot take advantage of gigabit speeds! Instead we get errors when seeking with Square button.
Physical medium is dying. Don't you find it much more convenient to rip your media to a harddrive and play it from your couch? Yes we are a lazy nation! We are also losing jobs! Why not use a standard that saves the most space on our costly harddrives? SONY please support .mkv!
THE SECOND BIG LIMITATION, the PS3 throttles file copying speed to 75mb/s or 6MB/s! This is even limited on a standard 100mb/s connection. This has nothing to do with gigabit ethernet! I believe this is a limit imposed by software!
You can test this yourself! Monitor bandwidth on the PC media server using Task Manager on a standard 100mb/s network during a PS3 file copy. Notice network utilization is at 75%? Now perform a file copy over the network to another hardwired PC. You will see 98% utilization!
SONY, if you read this: Please consider removing the 75mb/s file transfer cap! Also, consider higher profit margins by certifying DIVX HD Plus and .mkv compatibility!