Why are my games still lagging on my 4gb RAM Lenovo G50-30?

I've tried playing skyrim, just cause 2, dead space 3 and some other games which require 2gb ram to play but they are still laggy as hell and unplayable. I don't understand how it says thats the minimum requirement is 2gb ram to play yet it still lags, especially skyrim. The lenovo has an intel graphics driver and 4gb ram, so surely this would be enough. Even fallout new vegas, which runs fine, lags major in areas with alot of lighting. If i was to upgrade it to 8gb ram, would this solve the lagg? As 8gb is the most i can upgrade it to.

Guest 2 answers

What computer should I choose?

Objective of the computer:
- Play games such as World of Warcraft, DayZ, GMod, Minecraft, and so on (not too heavy, I suppose).
- Photoshop/Flash/After Effects projects (I have 8 gigs of RAM and currently After Effects alone wastes me 4 gigs of RAM alone)
- Game Development (using cry engine 3/unreal engine 4/autodesk, etc)

Which is the best?

LENOVO Z50 £699
Intel® i7-4510U Processor
- Dual-core
- 2 GHz / 3.1 GHz with Turbo Boost
- 4 MB cache
Memory: 16 GB
Graphics: NVIDIA GeForce 840M
Hard drive: 1 TB SSHD

OR

HP ENVY 17-k251na for £799
Intel® i7-5500U Processor
- Dual-core
- 2.4 GHz
- 4 MB cache
Memory: 12 GB
Graphics: NVIDIA® GeForce® GTX 850M
Hard drive: 1 TB & 8 GB SSD

OR

LENOVO Y50 £899
Intel® i7-4710HQ Processor
- Quad-core
- 2.5 GHz / 3.5 GHz with TurboBoost
- 6 MB cache
Memory: 16 GB
Graphics: NVIDIA® GeForce® GTX 860M
Hard drive: 1 TB SSHD

My personal comment: I have never used Lenovo, but I have tried an HP Pavilion and it broke right away when it fell on the floor for the first time (screen frame fell off etc!) from a really small distance (about 20/30cm). I'm looking for full performance. The Lenovo looks great but I'm not sure about the graphics card, because I know GTX is better than GT and GT is better than just GeForce, right?
I realize the third lenovo is the best in performance, but the price is kind of worrying, so I'm asking for an opinion on that too.

So, which one should I choose?

Dat Worgen 2 answers

No recovery option in Lenovo Tab S8?

No recovery option in Lenovo Tab S8?

Added (1). So I locked myself out of my tab and I can only open it by entering the password (which I forgot). There's no forgot password option where you can enter your google account to get pass the lock screen. The phone has a google account. Is there any way to bring up that menu? I thought all android devices had the Forgot Password? Option

Naruto 1 answer