Which GPU Should I Choose for My First PC Build?

I'd definitely recommend the 9060 XT 8GB. It offers significantly better performance than the 5060 for a similar price. Plus, your Ryzen 7 5700X won't bottleneck it, so it should work seamlessly with your setup.

If you're open to getting used parts, I’d look into a 4070 Super or Ti. They're comparable to a 5070 in terms of performance but can be found for under $400, which is a steal! Just be cautious of the condition.

Keep in mind that if your motherboard uses AM4, your PCIe slots might be 3.0 or 4.0. If you choose the 5060 with its PCIe x8 configuration, you could lose out on some performance. Honestly, for that price point, I wouldn’t recommend going for an 8GB GPU.

From my experience, the 9060 XT, even in 8GB, outperforms the 5060 noticeably. Unless you have a strong preference for Nvidia’s feature set, I'd say go for the 9060 XT. Also, consider checking out the used market; you might find a great deal on something like a used 3080 or even a 6800 XT that could fit your budget.

Honestly, you should aim for at least 12GB of VRAM; 8GB is just not enough for long-term use. You might have to explore buying a used card to find one that fits your budget, but it’s worth it to avoid wasting money.