I just built my first gaming PC and want to get the best possible performance, especially in competitive games such as Rainbow Six Siege, Fortnite, and Valorant. Could someone give me a practical optimization checklist covering BIOS, drivers, Windows settings, graphics settings, cooling, and anything else that actually makes a difference? My system has an XFX Radeon RX 9070 XT 16GB, an Intel Core Ultra 5 250KF, 32GB of DDR5-6000 memory, an ASRock B860 Pro-A WiFi 6E motherboard, a 1TB NVMe SSD, an 850W 80+ Gold power supply, and a dual-tower air cooler. I'm using an ASUS ROG Strix 24-inch 380Hz Fast IPS monitor.
4 Answers
Keep Windows and the motherboard firmware reasonably current, remove unnecessary startup programs and overlays, and use the normal high-performance settings only if testing shows they help. Keep the SSD from getting nearly full, make sure the case has good airflow, and run a memory test if you get crashes. Avoid registry hacks, debloating scripts, disabling security features, or aggressive overclocks marketed as mandatory optimizations; they often cause instability for little or no measurable gain.
The processor is not automatically a bad choice. Your actual FPS depends on the game, resolution, settings, background tasks, and whether the GPU or CPU is the limit. Competitive titles can be CPU-sensitive, so use an FPS monitor and compare GPU usage: low GPU usage with the frame rate capped by one or two CPU threads suggests a CPU limit, while near-100% GPU usage means graphics settings or resolution are the limiting factor. Benchmark your own system after each change instead of chasing other people’s numbers.
Start with the basics: update the motherboard BIOS if needed, install the Intel chipset and networking drivers, and install the latest AMD graphics driver directly from AMD. In the BIOS, enable the memory profile so the DDR5 actually runs at its rated 6000 MT/s. Then install your games, set the monitor to 380 Hz in Windows and in-game, and use a DisplayPort cable that supports the refresh rate. Verify everything with a monitoring tool rather than changing random registry settings.
For competitive games, use sensible settings instead of blindly maxing everything. Lower-heavy options such as shadows, effects, and post-processing if you want higher and more consistent frame rates, while keeping textures reasonably high since the card has plenty of VRAM. Enable FreeSync if it works properly with your monitor, and consider limiting FPS slightly below the monitor’s maximum refresh rate for smoother frame pacing. Check temperatures and clock speeds during a real gaming session; stable performance matters more than a brief peak FPS number.
Also make sure the monitor is actually set to its high-refresh mode. Windows sometimes leaves a new display at 60 Hz until you change it manually.

That makes sense. I’ll compare frame times and utilization rather than changing a bunch of settings without checking whether they help.