"Doesn't the texture resolution only unnoticeably affect the game's performance?"
Sizes of textures - this is one of the first parameters that strongly influence performance. For big textures not only is the large size of the video memory is filled immediately, as even most of the other operations with textures immediately begin to use more resources of CPU and GPU...
"Again, if my GC doesn't have enough VRam, how can I run games smoothly, happily, perfectly with very high texture quality?"
One game strife to another...
For TF2 "insane" textures, GC should have more= 8Gb VRAM!
"I don't think anyone at all would lend me their GC unless it's a spare one, ever"
They do not necessarily lend it to u, but just bring it and install it and test game i.g. one hour and if game run good on GC with 2Gb or more in ur case it would clearly show a problem...
All is simple: if GC don't meet min requirements (2Gb of VRAM) or CPU, then u don't have a guarantee to running game normal and any problems may acquire... I.g. another requirement is 4-core CPU... Seemingly a game must somehow run on any 2-cores CPUs, but developers decided to play normally on such a CPU in any case will not be possible and a game don't run on almost all 2-cores CPU (u have to use dll injector for running it nevertheless on own risk)...
A friend of mine plays Titanfall 2 with a laptop, he has to keep every setting at its lowest-quality value to achieve 30 mere frames per seconds. Still, I asked him to temporarily change the texture quality to Medium and it ran normally (then he realized he could keep them). I'd like to remark that texture quality is my one and only problem, since I have a 4-core CPU (2.80GHz clock), around 4 gibibytes of Display Memory (of which nearly 1 gibibyte is dedicated) and 8GiB of main memory. This is the only game that has ever given me this kind of problem; I would guess Titanfall 2 wants to run on 8-cores CPUs, but I just barely slightly doubt that's the case.
there will still be a lot of TF2 patches and resolved, and new problems)))
