I havent tested my laptop card yet.
Specs: i7 2630QM 2.0ghz blahblah, AMD 6570M 1gb GDDR5 51.2gb/s bandwidth i think, 4gb ram

I read that on some powerful cards like the 560 ti, the official hi-res pack doesnt make a difference in fps/lag/loading time/stutter.
However, what about my card? If someone has a similar card to mine and uses the hi-res pack(and maybe ENB too), could you tell me the results?

maybe try the 2k low res textures mod...still looks better the beths hi res(imo)

It also depends on the resolution you play at, and what type of AntiAliasing you use. Playing at a higher resolution requires more vram. Enabling high levels of AA requires more vram. That eats out of your vram budget. And if it's too much, you might not have enough vram left to store the high-res textures.

Download GPU-Z. Install it. Run it and look to find where it says how much vram is in use at the moment. Keep GPU-Z open. Then start Skyrim. Load a savefile. Do a few fast travels to different locations, so you are sure you have "seen" a lot of different textures. Then alt-tab and look at GPU-Z. How much vram is in use now ? If it is getting close to 1GB, then you might be in trouble.

On my old gtx260 (with 896MB vram) I was using 800+ MB of vram, without the high-res texture pack (but with Vurt's and a few small addons). I was playing at 8xMSAA @1920x1200. Now I have a gtx680. With high-res textures, and a lot more eyecandy and addons, I use 1.5-1.6GB of vram already.

I have a GTX560 with 1GB vram. I use Beth's high res pack and a few other textures: Better Dynamic Snow, Enhanced Distant Terrain, W.A.T.E.R., Enhanced Blood Textures. I may have had more at one point. Anyway, works fine for me. I've seen others complaining about their 1GB cards not being enough, though. It could just be their setup or some unrelated issue they're just blaming on the Beth Texture Pack. Who knows?

i have a gtx 460 v2 1gb and i run the hi-res pack at 1920x1080, nice fps

You have a lowish mid range card, unless you indeed have the GDDR5 version then its closer to a medium mid range card. I either case I wouldn't bother.

Its definitely not a GTX 560 TI, in terms of specs

GTX 560 TI
26.3
52.61
128.26

6570M
5.2
13
28.8(DDR3) 57.6(GDDR5)

Pixel Fillrate ; Texture Fillrate ; Memory Bandwidth