With 8 GB RAM most likely swapping is not necessary, but you need swap if you have a laptop and want to use the hibernate option. You could also go for a swap file instead of a swap partition.
This is information on how to maximize performance of your SSD. Make sure to read the section about Swap and tmp, which explains whether swap is needed or not. And as @January said, with 8GB RAM you probably won't need a swap.
Now that SSDs have moved into the realm of affordability, there's
little reason not to use one for your next PC, if you're not already
using one. But Linux, as with Windows, has spent decades being tuned
for spinning platter drives and while performance is noticeably
increased when using an SSD under Linux, there are a number of tweaks
and filesystem changes you can do to make the most of your SSDs.
Filesystem layer
Scheduler
Swap and tmp
Linux is pretty good at only using swap if it really needs to, but
even so if you're installing to an SSD and you have a mechanical hard
drive in your system, be sure to put the swap partition on it instead
of the SSD. If you've already installed Linux and allocated a swap
partition on the SSD, you can simply set aside a partition on a
spinning platter drive and edit your /etc/fstab swap entry to point to
it instead. Read on
With 8 GB RAM most likely swapping is not necessary, but you need swap if you have a laptop and want to use the hibernate option. You could also go for a swap file instead of a swap partition.
This is information on how to maximize performance of your SSD. Make sure to read the section about Swap and tmp, which explains whether swap is needed or not. And as @January said, with 8GB RAM you probably won't need a swap.
1Source:How to maximize SSD performance with Linux
Since the above link is no longer working, I will leave it because it references some of the information in the answer.
More info:
5 Tweaks to Make After Installing an SSD Drive.
SSD: how to optimize your Solid State Drive for Ubuntu and Linux Mint.