Advancedsettings.xml with 8GB RAM?`

Hello,

Someone who is better at hardware and code than I am; on the wikipage there is a great recommendation for video cache when you have 1GB of RAM – I am on W7x64 and have 8GB of RAM.

How would you modify this:
<advancedsettings>
<network>
<buffermode>1</buffermode>
<cachemembuffersize>139460608</cachemembuffersize>
<readbufferfactor>20</readbufferfactor>
</network>
</advancedsettings>

..if you were me?

Thank you in advance!