The RX 7900 XTX Taichi is a powerful GPU, and your system specs are impressive! Regarding your concern about power consumption, the behavior you're observing seems consistent with the GPU's capabilities and power requirements.
The RX 7900 XTX typically has an average power consumption of around 400W during gaming, but it can experience power spikes under heavy loads, such as playing graphically demanding games like God of War: Ragnarok. These spikes can reach up to 574W or even higher in some cases, depending on the workload2. Upgrading to a 1000W PSU was a wise decision, as it provides enough headroom to handle these spikes without causing instability.
However, the stuttering issue you're experiencing after an hour of gameplay might not solely be related to the PSU. Here are a few additional factors to consider:
Thermal Throttling: Ensure that your GPU and CPU temperatures are within safe limits. Overheating can cause performance drops.
Driver Updates: Make sure your GPU drivers are up to date, as outdated drivers can lead to performance issues.
Background Processes: Check for any resource-intensive background applications that might be affecting performance.
Game Settings: Experiment with lowering some graphics settings to see if it improves stability.
If the stuttering persists despite addressing these factors, it might be worth monitoring your system's power delivery and thermal performance using tools like HWMonitor or MSI Afterburner.
Hope this helps!
