best gpu upgrade for acer aspire tc-710

[leid1974]

300w psu,i5 6400 2.7 ghz, 8 gb ram ddr3l, windows 10 pro, have a logitech g29 wheel and dirt rally atm and only getting 13 fps. am willing to upgrade psu and other components if needed

 

[imsqam]

If I am correct then your system came with a GT 720 (19W), lucky to get 13 fps.

Now your mobo is an issue, very cheap and it has a PCI-Ex16 (x8) expansion slot.
http://www.tomshardware.com/answers/id-3083454/problem-slot.html

This will limit the speed of the GPU so I believe that anything above a 1050Ti is wasted. Good thing here is that it is only a 75W GPU and only needs a 300W PSU. But honestly I would still replace the PSU, low budget FSP model and your power draw is starting to get up there. Because of phenomena of PSU aging I can't say for sure if the PSU is still capable of producing 300W.

Here is a list of 1050 Ti cards
https://pcpartpicker.com/products/video-card/#c=380&sort=a8

Here is a parts list with my choices for GPU, PSU and a RAM upgrade to 16GB
PCPartPicker part list: https://pcpartpicker.com/list/r4V9Ps
Price breakdown by merchant: https://pcpartpicker.com/list/r4V9Ps/by_merchant/

Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory ($104.99 @ Newegg)
Video Card: EVGA GeForce GTX 1050 Ti 4GB SC GAMING ACX 2.0 Video Card ($139.99 @ Amazon)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($47.89 @ B&H)
Total: $292.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-02 09:35 EDT-0400

 

[dontlistentome]

Dirt Rally will run great with an RX 460 2gb card, if you're looking a cheap but effective upgrade. I agree the best upgrade for you would be a 1050 Ti but I think that's more than you need if Dirt Rally is your game.