Question regarding SSD speed in relation to capacity

Hey all, got a question about speed in an SSD based on how full it is. I just ordered a GP73 from HIDevolution and I got the 128GB M.2 NVME card with the stock 1TB HDD. My plan is to immediately pull the HDD and put it in a housing for an external drive. Then I'm going to put a 512GB Samsung EVO 860 VNAND drive in the 2.5" bay. My question is whether the NVME drive is going to be faster if I keep just my OS on it and store all my other stuff on the EVO SSD, or can I put some other stuff on the NVME drive until it's close to full and not notice any speed drop?

So, do SSD's lose speed based on how full of stuff they are?

 

When SSDs get filled up beyond 80% they will lose a bit of speed. Nothing you would notice as an average user but maybe synthetic benchmarks would be lower.

I stopped worrying about this long ago but again, I don't buy small SSDs so they always have a lot of free space.

One way to ensure you never reach the point where it would start deteriorating in speed is to overprovision your SSD(s) by 20% (although Samsung only recommends 10%, I find 20% is the better option and that's how most SSD tweaking guides on the web tell you)

 

I'd love to throw a 500GB or 1TB NVME card in there, but college student budgets are what they are. My hope is that I can leave the OS on the NVME card and then store the rest of the stuff on a 500GB EVO 860 SATA and still have enough speed that I won't notice not having a nicer drive.

I'll be researching how to overprovision the new drive.

 

the noticeable speed difference isn't all that concerning, for most people anyway. if you cared about speed, you would have gone and spent a lot more on more expensive storage solutions.

a -25% performance penalty is nothing on SSD storage. because it's general purpose is still storage, and it is still many folds faster than an empty hard drive.