Isn't HDD speed highly relevant?
Mine is slow, and I have an initial load time after clicking Continue of, like, 2 minutes. The fact I have the horsepower to get smooth frame rates with everything maxed has no effect on load times.
To some degree it is, but most hard drives people are using these days are either SSD (which is a huge difference) or ones running at 7200RPM.
Of course if you're on an SSD you're going to probably notice a speed difference. However, I've been warned off on installing my copy of DAI on my SSD as the person who told me the lag issue is because of the DRM in the game which does alot of read and writes to the hard drive, as a result it'll significantly reduce the lifespan of the SSD.
And beside that, any developer who's producing a game expecting people to install it on SSD to get decent performance.... is being hugely unrealistic. Most people still only use SSD to host their OS and basic programs. The lifespan and expense of an SSD still puts it out of reach for people to quickly and cheaply replace it if it dies.
Anyways, long story short...
No - it shouldn't make a difference what my speed of drive is. Not unless I was using an old PATA drive, which would be in a computer WAY below spec.
Silvercloak