I'm planning a GPU upgrade for my AM4 gaming system. My current RTX 3060 Ti is starting to struggle with newer and upcoming games, especially since I'm interested in competitive performance and will be gaming at 4K. My system has a Ryzen 7 5700X3D, an ASRock B550 Pro4 motherboard, 32GB of DDR4-3200 memory, and a 700W Aerocool King Power PSU. I'm considering a refurbished RTX 4090 for around £1,427, with a two-year store warranty, but I'm also looking at an RTX 5080, RTX 5070 Ti, used RTX 3080 Ti or RTX 4080, and AMD options such as the RX 9070 XT or RX 7800 XT. Would a 4090 be excessive for this CPU and platform, and would I need to replace my PSU regardless of which card I choose? How do these options compare for 4K gaming and long-term value?
4 Answers
The newer high-end cards will all work with the 5700X3D; the CPU is not a reason to avoid a 4090, 4080, 5080, or similar GPU at 4K. However, the RTX 4090 is often priced too close to newer cards to make it attractive. The RX 9070 XT is one of the stronger value options, while a discounted RTX 4080 or 5070 Ti could also make sense if you prefer Nvidia’s features. A 7800 XT is another reasonable step up if you find one at a particularly good price, though it is less suited to demanding 4K settings than the faster options.
The Ryzen 7 5700X3D should be capable of running any of these GPUs, particularly at 4K where the graphics card is usually the limiting factor. A 4090 would perform extremely well, but at £1,427 it may not be the best value unless you specifically want the highest performance available. An RTX 4080-class card or RX 9070 XT would be more sensible choices for most builds, while still offering strong 4K performance with upscaling when needed.
You should plan to replace the 700W PSU for a 4090, and likely for an RTX 5080 as well. Those cards need more headroom than your current unit provides, and a quality higher-wattage PSU is important for handling transient power spikes safely. Check the exact recommendation for whichever card you buy, but something around 850W or higher from a reputable manufacturer would be a safer target for the top-end options.
The RX 9070 XT is worth considering for this system. It pairs well with the 5700X3D, offers strong 1440p and capable 4K performance, and may be a better value than the higher-end Nvidia cards. FSR can help maintain smooth 4K frame rates in demanding games. The main reasons to stay with Nvidia would be features such as DLSS, stronger ray-tracing performance, CUDA-specific applications, or simply wanting to keep Nvidia’s software and ecosystem.
I haven’t used an AMD card before, so the main question for me is whether giving up Nvidia features would be noticeable in the games I play.
That makes sense. Since I’m definitely targeting 4K, I’m mainly trying to balance smooth performance in newer games with not overspending on a card that won’t offer good value.