great, thanks for your help, I appreciate the reply.

According to the Dell spec sheet for the Precision T1700, here is what is stated about the Mini Tower.
"Mini tower: one PCI Express® x16 Gen 3 graphic card up to 150W (total for graphics)"

You can install any Quadro card up to a the following for each series:
Quadro M5000 8GB
Quadro P4000 8GB

Or the following Geforce cards (This does not factor in factory overclocked cards)
Geforce GTX 970 4GB
Geforce GTX 1070 8GB
Geforce GTX 1660 ti 6GB

In short... Yes you can install a Quadro P2200 5GB card, though you might want to consider going up another step to a P4000 8GB card

Update, I had a look on gpu.userbenchmark.com and it usefully lists all of the Nvidia graphics cards. Having had a look at "bang for buck" decided to go for a RTX 4000, seems like best compromise for speed vs cost. Should be here next week.

Interestingly my CAD vendor suggested looking at Solidworks benchmark test, they have a model you can download and render to compare your current system against benchmarks. Based on their benchmark RTX 4000 should be over 5x faster than my current K4200.  Will test when I get it and post.

UPDATE: 

I ordered the RXT4000 graphics card, but unfortunately it requires a separate power feed and the power supply fitted as standard to the T1700 doesn't have the extra feed and isn't powerful enough to run it. I have checked and apparently I need to replace the power supply to 500W+,  I have looked on You-tube and it looks like a mod  gamers have done to T1700 to fit gaming graphics cards.  Seems like a step too far for me so I sent the card back to Amazon.

I am using the Dell precision optimiser, however I discovered it doesn't update Nvidia drivers automatically. I was running the original driver, I installed the latest driver and it has improved the performance of Solidworks Visualise.