Do I Need to Upgrade My PSU When Upgrading from an RTX 2070?

January 16, 2026 4 answers
Asked by GamerDude88
I'm currently running an RTX 2070 paired with a Ryzen 5600X for 1440p gaming, but I'm hitting VRAM limits, so I'm considering upgrading to an AMD 9070XT, which is priced around ยฃ600 and seems like the best value right now in the UK. My current power supply is a 2017 Corsair TX750M with only two daisy-chain PCIe 8-pin connectors, while some of the new cards require three. Is it safe to daisy-chain an additional connector for power, or should I just go ahead and replace the PSU altogether?

Answers

PowerGuru
Definitely check the strength of the 12V rail on your PSU. If it's 300W per rail, swapping it out is wise. The RTX 2070 pulls around 200W, so the 9070XT's 300W draw means you want that extra margin just to be safe.
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TechWhiz42
Given your PSU's age, upgrading it might be a good idea. A newer model with 850W capacity would offer better stability and efficiency, especially since you mentioned itโ€™s from 2017.

PowerPlay15: That's true! The TX750M is showing its age. An 850W upgrade could help with future-proofing too!

SafePower33: For sure. My old PSU lasted over 15 years, but I'd still recommend getting a new one to be safe.

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VoltageCheckMate
Using a pigtail for the third connector should work fine, but I'm skeptical if 750W will be enough, especially for an overclocked card. Undervolting may help if you have issues, but just be cautious with your power draw.
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OldButGold
As for my experience, even with an older system running a 6080 XT on a 750W PSU, I never ran into issues. Just make sure you keep an eye on the temperatures and performance.
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