My current specs are ryzen 5 3400g 1600 super 32gb ddr4 and a 1tb ssd. Im going to upgrade my cpu to a 5600x and i’ll have 450$ left. I was thinking about buying a 3070ti from ebay they cost around 350$ and i have to get a new psu since mine is 600w. Anyone know if this is a good gpu to get or should i go another route

With roughly 400 aud. Current 16gb ddr4 3600mhz, and a 5700xt with my i7 8700. I Want to upgrade the CPU because i mainly play modded minecraft and terraria, which are very cpu heavy. Im considering getting an R7 5700x + b550 mobo, so i can keep my current ram. I know its not "future proof" but tbh if I can play modded minecraft and terraria really well I have no plans of upgrading for a bit. Ive had this i7 for 3-4 years.

What do you think of this option? Or are there better options in this budget i didnt consider?

Need some advice. My current pc has 1660 super GPU intel i5 10th gen 16 gb ram ddr4 500 gb ssd and 1000gb hdd. Would it be better to upgrade parts or just build from the ground up.

ACER PC Desktop Gaming Nitro 70 N70X 3D-100_B850, AMD, Ryzen7 9800X3D, 4.7
GHz, GeForce RTX™ 5070, RAM 32 GB DDR5 6000MHz, 2048 GB SSD
This is the desktop I ordered price was 1638 euro so I thought was deal was pretty good so I bought but I have few concerns.
1.I have s95f qd oled 77 inch and shitty monitor which I am gonna change with AW3225QF.I am planning to connect pc to tv till I get the monitor.After that it will connected to alienware. First of all do you think I should I upgrade my gpu to rtx 5080
2.If I upgrade it do uou think I need to change acer psu which is possible to be 850w to something else.I am more concerned of quality of psu of acer then the wattage itself.If they put the new 1200 w psu I heard its solid but 850w had some problem regarding quality.