Well I am very happy to report that transferring the .dat file worked like a charm. With my crappy internet it could take days to download this game, but copying over the files took less than a half hour total. It needed to download something like half a megabyte patch once it was done and I was in the game. Awesome.
Glad to hear it. Are you happy with your performance on the new PC?
So what do you think? I also can picture a hot cpu causing other components, by proximity to the cpu, to create a lag situation.
A CPU can affect framerate performance (and it probably is, given how terrible zerg performance is in GW2), but not ping. As Quaker said, ping is a measure of network latency, expressed as milliseconds of delay between your computer and a remote server, so it is affected [potentially] by the network infrastructure starting with your own modem and router and going all the way to Arenanet's own servers.
The only component actually inside a PC that has the potential to directly affect ping is your network adapter, I guess, but I think if anything was wrong with that it just wouldn't work at all. If the ping really is spiking, it's more likely an issue of a slow or unreliable internet service provider.
I recently moved GW2 from my SSD (C:) to my hard drive (D:) and I just tried running it. It appeared to want to re-download the whole thing. Like the poster above said, it appears to lose track of the .dat file.
What ended up happening? Did you have to download the entire .dat file?
I would have expected it to appear to start the download, assess the .dat file present, and quickly finish up.
I'm not sure what to recommend without knowing exactly what your options are, to be honest.
The Radeons R7 250 & R7 260, as well as the Geforce GT 740 are basically comparable. Just note that the R7 250 and GT 740 both have versions equipped with DDR3 and GDDR5 memory. GDDR5 versions are much faster.
(Oh, and as an aside; no I did not get a portal stone. Seriously Arena Net; f**k you...)
If it's any consolation, I think the portal stone only gets you into one particular beta. Tying it to a drop indicates that they're trying to control the number of people they let in this time. But there will likely be more betas and map stress tests where they're going to want to open the floodgates and let everyone in. Sorry your luck hasn't worked out this time, though.