Would an RTX 5080 Be Too Much for My i5-8600 Build?

For a lower-cost upgrade with fewer concerns about the older processor, look at an RTX 4070-class card, an RTX 5060 Ti 16GB, or a Radeon RX 9060 XT. Nvidia makes sense if DLSS and ray tracing are priorities, while the AMD options usually offer stronger rasterized performance for the money. Your target resolution matters a lot—ultrawide 1440p will put more of the workload on the GPU than standard 1080p.

The 5080 should work in the system, but the i5-8600 will hold it back in many games, especially at 1080p or when targeting high refresh rates. At 1440p and above, the GPU becomes more important, so the bottleneck may be less noticeable. Make sure the power supply has enough wattage and the correct connectors before buying.

I’d avoid putting most of the budget into a 5080 while keeping that CPU and motherboard. A Radeon 9070 XT or a non-XT 9070 would be a more balanced choice, although the processor could still limit performance in CPU-heavy games. A platform upgrade to something like a newer DDR4-compatible system could make better use of the graphics card without forcing an expensive memory replacement.