Quote:
Originally Posted by Robertus
I do realise your point popper...but isn't it the same with 20mb (on a different scale)?
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thats the thing though, many people think they get it but infact they dont, and thats understandable, if you dont have a reference point to base the up/down ratio on its easy to assume the above is the same, its not.
a "good ratio" in this case means it wont usually stall the download connection , not the more general "good ratio" as in, as close as 1 to 1/synchronous as you can get.
if the set ratio indicates your upload is below the right point, your connection will stall before you reach the top download rate, hence a "bad ratio".
if the set ratio indicates your upload is above the right point, your connection will Not stall before you reach the top download rate, hence a "good ratio".
as our reference point we take Druchii's Ethernet LAN speed as the average to do our rough calcs.
in effect Druchii is utilising
only 
28.846Mbit in upload ACK packets for his 75Mbit download, well within the Ethernet tcp/ip (100Mbit ethernet i assume) speed safe/good 1to1 ration, and so way above the point of a potentially stalled connection, hence a
really "good ratio" the best you an get infact being
synchronous.
its already been pointed out that the ration for 50Mbit/s with the 1.5Mbit/s ration is a "Bad ratio" as it needs a bare minimum of 1.733Mbit.
the 20Mbit needs a bare minimum of 693Kbit/s ,so at 768Kbit/s it's in the "good ratio" column.
the 10Mbit needs a bare minimum of 346Kbit/s ,so at 512Kbit/s it's in the "good ratio" column.
the 4Mbit needs a bare minimum of 138Kbit/s ,so at 400Kbit/s it's in the "good ration" column.
OC these are rough calcs and are the bare minimum to max out your download rate, as i said, the higher the upload rate the far better it is....
the best OC being the same speed up as down,
a one to one ratio or synchronous, whatever that payed for speed rate is.
the US are selling these now, we generally dont see it in the Uk anymore, but we may once Wimax takes off such as the package being sold in west manchester for instance.