I'm replacing my current PC, which has a Ryzen 5 3600 and RTX 2070. I mainly play games and work from home doing software-related tasks, sometimes at the same time. I also run three 144 Hz monitors plus a 34-inch ultrawide monitor. I put together a roughly $3,200 build around a Ryzen 7 9800X3D, RTX 5070 Ti, 32 GB of DDR5-6000 CL30 memory, a 2 TB Samsung 990 Pro, an 850 W Gold power supply, and a large dual-tower air cooler. I'm not very experienced with hardware, so I'd appreciate a check for compatibility issues or obviously poor value. I'm willing to spend extra for reliability and peace of mind, but I don't want to waste money on parts that won't provide a practical benefit.
3 Answers
The parts should be compatible, but the build is heavily overpaying in several places. A Thermalright Peerless Assassin or Phantom Spirit should cool the 9800X3D well for a fraction of the Noctua cooler’s price. The 990 Pro is also excellent but unnecessary for gaming and normal software work; a good midrange PCIe 4.0 NVMe drive will feel nearly identical. The memory kit is priced unusually high too, so look for a reasonably priced 32 GB DDR5-6000 CL30 kit. Put the savings toward the graphics card if gaming performance is the priority. Multiple high-refresh monitors make a capable GPU sensible, but the CPU and cooler do not need to be this extravagant.
Yes, the 990 Pro will work in the build, but it is mostly an expensive luxury here. Games and typical development workloads rarely benefit enough from a flagship drive to justify that price. The 9800X3D is a strong gaming processor, although the graphics card usually determines performance at higher resolutions and settings. If you are buying mainly for gaming, compare the RTX 5070 Ti with similarly priced alternatives before committing, since the listed price looks especially high. An 850 W quality ATX 3.x power supply is appropriate.
The alternate direction makes more sense: keep a strong gaming CPU, use a much cheaper dual-tower cooler, choose sensibly priced DDR5-6000 memory, and move more of the budget toward the GPU. Your four-monitor setup does not automatically require a premium CPU, though you should verify that the selected graphics card has enough outputs for all displays. For work and gaming at the same time, 32 GB is usable, but 64 GB could be worthwhile if your development tools, virtual machines, browsers, or containers use a lot of memory.

My current system was limited by its CPU and had inadequate cooling, so I’m intentionally spending extra for peace of mind. I agree that the SSD and cooler may be overkill, though. The 990 Pro would still work correctly in this system, right?