Parallels vs VMWare for Mac I use Parallels on my iMac and Macbook Pro.  It seems to run fine on my iMac but kind of causes my MBP to become a little sluggish and fans to get pegged.  I was speaking with someone that runs several VMWare VMs on their Macbook without any problems at all.  They mentioned my MBP should have more than enough resources to handle several VMs.

Does VMWare generally perform outstandingly better than Parallels on Macs?

Here are my machine specs (both running OS X 10.10.3):

iMac
3.2 Ghz Intel Core i5
16GB DDR3 RAM
NVIDIA GeForce GT 755M 1024 RAM
500GB SSD w/25GB free space
VM is allocated 2GB of RAM

Macbook Pro
2.7 Ghz Intel Core i7
16GB DDR3 RAM
Intel HD Graphics 4000 1024 RAM
500GB SSD w/47GB free space
VM is allocated 2GB of RAM
Parallels on Mac has a better performance. It integrates with OS X in a way which is not possible with VMware. I am using parallels with multiple VMs without any problems or sluggishness. I have allocated 3 GB RAM to each VM. Check how many CPU cores you have allocated to your VM.