I'm working on a budget AM4 build and I already have my GPU, the RX 6600, and a Ryzen 5 5600 CPU. I'm curious if using PCIe 3.0 instead of PCIe 4.0 will affect my FPS significantly. I'm on a tight budget, so I'm hoping to find out if the performance will be similar or if I'll lose a lot of frames.
3 Answers
You really shouldn't worry about it too much! Even with higher-end cards, going with PCIe 3.0 might only cost you about 2-3% in performance, which you probably won't even notice while gaming.
The RX 6600 is limited to 8 lanes, so you're right to be cautious. Most of the time, the difference is minimal unless you're gaming at 4K with heavy texture packs. Stick with 1080p or 1440p, and you might only see a 1-3% drop in performance, which isn't significant.
You've got to consider that the RX 6600 does face some limitations with PCIe 3.0 since it provides less overall bandwidth. But for most games right now, it's not likely to be a big deal. Just keep an eye on future-proofing if you plan to upgrade later!
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