I'm planning my first high-end gaming PC, mainly for CS2 and Valorant. My priorities are very high FPS, consistent frametimes, and strong 1% lows rather than AAA gaming performance. The planned parts are a Ryzen 7 9800X3D, MSI MAG B850 Tomahawk WiFi, 32GB of DDR5-6000 CL30, an RX 9070 XT, Kingston KC3000 2TB SSD, Thermalright Phantom Spirit 120 SE, Corsair RM750x, Phanteks XT Pro Ultra, and an Alienware AW2524HF 500Hz monitor.
I'll be buying the parts over the next few months, but I'm wondering whether the B850 Tomahawk is worth the extra cost over boards such as the ASRock B850 Pro RS or ASUS TUF B850. Stability and avoiding RAM or BIOS problems matter more to me than extra features. Is DDR5-6000 CL30 still the sensible choice for the 9800X3D, or would a slower kit be virtually identical? Is the ASRock Challenger version of the 9070 XT a good buy, or is it worth paying more for another model? Finally, is a high-quality 750W RM750x sufficient, or would 850W be a better choice for transient spikes and future upgrades?
The system will run at 1080p, and I'd especially appreciate real-world CS2 and Valorant FPS and 1% low figures from anyone with similar hardware. I'm aiming for a stable system that can be configured once and left alone.
4 Answers
The RM750x is a high-quality unit and should be adequate for a 9800X3D and 9070 XT at stock settings. You do not automatically need a 1000W PSU; an 850W model simply gives you more headroom for transient spikes, future upgrades, or aggressive tuning. If the price difference is modest, I’d choose a good 850W Gold unit, but I would not replace the RM750x solely because people claim the system requires 1000W.
The performance will be more than enough for those games, especially with a 500Hz monitor. A comparable system should generally stay well above 400 FPS in CS2 and around or above 500 FPS in Valorant, although maps, settings, smokes, and the rest of the match can affect 1% lows considerably.
DDR5-6000 CL30 is still a very sensible plug-and-play choice for Ryzen. Faster or tighter memory may provide small gains, but stability is more valuable here. You could consider CL36 if it is significantly cheaper, since the real-world difference with an X3D processor is usually small.
One practical issue is buying the parts several months apart. If you discover a defective motherboard, memory kit, or CPU after the retailer’s return period, troubleshooting becomes much harder. It may be better to save the money and purchase the core components within the same window so you can assemble and test everything while returns are still available.
I would also keep the Phantom Spirit unless you strongly prefer an all-in-one cooler. It is capable of handling this CPU, and a good air cooler is generally simpler and less failure-prone. Check the case airflow and fan noise instead of spending extra on an AIO just for slightly lower temperatures.
The B850 Tomahawk looks like a good middle ground for features and power delivery. You do not need an expensive enthusiast board for a 9800X3D, but I would compare the exact BIOS support, memory compatibility, rear I/O, and warranty rather than choosing based only on brand reputation. The ASUS TUF is also a reasonable alternative if it is cheaper and has the features you need.
For the graphics card, the Challenger should be fine if its price is good and you are comfortable with its cooler and noise levels. Premium models from Sapphire, XFX, PowerColor, or ASUS may have better acoustics, but they should not deliver a meaningful FPS increase.
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