I couldn't say how accurate it is or how it compares to Neptune in real life but I can get around 10MB/s with the Nereid emulation in XM6g. That isn't bad. How much data would you realistically be transferring anyway? Games are a few MB, music is tiny taken in smaller chunks than the whole damn collection.
If you're getting 10 megabytes/second, then you're running faster than a 100-baseT network, let alone the 10base-T that's on the NE2000 board that's supported by the Neptune-X.
The ether_ne.sys v0.02 driver that's on the NFGames FTP site comes with a readme that says ...
development environment & speed comparison
X68030-25MHz (cache on) + Neputune-Evolution
+ Ether_ne.sys + ftp.x
Self-made AT machine i486SX-66MHz
+ TFTPD (FTP Daemon for Windows95)
We gave a speed comparison in.
Reception 27KB / sec transmission 80KB / sec
- Modified version ether_ne.sys
Reception 30KB / sec transmission 137KB / sec
The above results I am based on the transfer speed display in the mput command of ftp.x.
Please note that it contains a certain amount of error in this value (network
Even numbers will vary by the amount of flowing packets).
Now, those are pitifully slow numbers, and that's on an X68030-25!
Back in the PC days, I was getting 800KB/second transfers out of a 10base-T network.
Communication through high-speed serial is an option, and there's the lovely 4-port high-speed serial port board for the X68000 that should easily do 500Kb/s that I've not been able to get a hold of.
A USB-FIFO with good programming on the PC end can get 1 megabyte/s transfer ... and it's such a simple port-based I/O solution on the X68000 that it really should be able to achieve a reasonable fraction of that (even without DMA).
As for actual internet-access on the X68000 ... I'm afraid that it's something that just doesn't interest me, but I can understand if others think that it's "cool".