Increase RAM?

Hello, I have 4 GB DDR3 1333MHz Memory in my laptop, I use that laptop for gaming and VMware. When I use VMware there is a bit of slow operations in my PC, is it because of less RAM?
I know how to upgrade RAM. Just want to confirm whether it is needed or not.

specs of the laptop? that would help, might be a issue with virtualization settings or something too...

Okay,
CPU- i7 2630 QM 2GHz 4/8
GPU- GT 540M
HDD- 500GB 7200 RPM

What OS? You'll need a 64-bit OS to access that extra RAM.

Its Windows 7 Home Premium 64 Bit OS.

Don't have any knowledge on VMware but it seems like its a system resource hog software. Increasing the ram will definitely help as your computer will have more free / cache space to roam on.

Giving more Specifications,
I run XP SP3 32 bit in VMware, I allocated 1 GB Memory for it and 2 cores of CPU.

What's your exact CPU model? Not all CPUs support virtualisation and all virtual machines tend to be somewhat slow without hardware virtualisation support. Also, have you installed the virtualisation extensions (I think that's what they were called anyway) under your guest OS? I think there should be a menu option for that...

Anyway, whether or not RAM is the actual problem depends on what you do on the virtual machine... before upgrading anything, though, I would try increasing the amount of allocated RAM for the virtual machine to, say, 2GB. If that fixes your problem, you really only need to consider getting more memory if you don't have enough left over to do other things - which probably won't happen unless you game and run a virtual machine simultaneously. And if it doesn't fix it - -well, you know that RAM most likely isn't the culprit here.