Hey Ham! Oh boy, if it’s been 25 years since you built a PC, then you’re used to looking for which FSB your Pentium III is, getting the right speed SDRAM, and shelling out for a high-end Sound Blaster Audigy card. Welcome to the new millenium.
For the CPU - you’ve chosen a Ryzen 9 9950X. This is actually not the fastest gaming CPU on the market today, that honor belongs to the Ryzen 7 9800X3D. 3D V-Cache smooths out performance, so that you not only get a high average framerate, but stutters are minimized - those tiny drops to single-digit FPS that happen for fractions of a second at a time are gone. The Ryzen 9 9950X3D also exists, but serves a different purpose - it is designed for content creation professionals who need 16 cores for workstation tasks, but who use the same machine to run high-end games in their downtime. Precious few games utilize more than 8 cores today, and the 9800X3D is the only CPU that can hold over 60fps in the newest Microsoft Flight Sim at 4K resolution.
There’s nothing negative I can say about your motherboard choice, no critiques whatsoever. Power delivery to the CPU and GPU on that board is top-notch, you’ll be served well for many years.
As far as memory goes, this is a nuance topic. For AMD systems you want the Trident Z5 Neo not the regular version; the regular one is Intel XMP only and will have stability issues on an AMD system… I’ve personally run into issues with just 2 sticks. The Neo version won’t have that problem. That said, AMD CPUs use a modern FSB equivalent called Infinity Fabric which handles all communications between the CPU, RAM, and CPU-connected PCIe slots… it can reliably run at up to 2000MHz on almost all Ryzen 9000 series CPUs and it must be an even divider of the RAM speed. If you run 6400MHz RAM, your options for infinity fabric speed are 2133 at 1:3, or 1600 at 1:4, and most chips won’t do 2133MHz Infinity Fabric. This is a silicon lottery type thing. For that reason you’d be better served by a good quality 6000MHz kit with CL30 or tighter timings. CL28 exists. The RAM latency is infinitely less important on a system with 3D V-Cache, as the super-sized cache on the processor makes up for almost any RAM latency issues.
An RTX 5070 Ti is an excellent choice of GPU, but it will leave your 9800X3D (or 9950X) sitting around twiddling its thumbs. You’ll have more CPU than your games know what to do with. Even an RTX 5090 does not fully saturate the capabilities of a 9800X3D CPU. If you’re opting for “only” (and I use heavy air quotes around the word “only”) a 5070 Ti, then you might as well scale back your CPU choice to something like a Ryzen 7 9700X - you’ll see almost no difference in gaming.
The King 95 Pro is one of the current top picks for out-of-the-box airflow, particularly for the price. And the view you get with the giant curved glass panel is unmatched.
This power supply is extreme overkill. The RTX 5070 Ti maxes out at only 300W of power usage, and you might hit about 180W on your CPU under extreme boost conditions. You’d be well served by an 850W unit as this gives you some headroom for future upgrades; if you’re going with a high-quality brand such as Corsair, PC Power and Cooling, Seasonic, etc… then you will likely never have a problem.
Your storage is a bit on the crazy side, and not because of the capacity but because of the speed. If this PC is for modern games, you won’t see a difference today between drives running at 7GB/second or drives running at over 10GB/second. Save yourself a chunk of change and go with something like a Silicon Power US75 4TB drive; if you want to stick with Samsung as a brand name then a 990 EVO Plus will serve your needs well. The only time you’d notice a difference is if you are editing large videos; moving them around, you’ll see a benefit to more throughput. You won’t see this in games.
As far as the cooler goes, Corsair is fine; Arctic Cooling is better. Their Liquid Freezer III lineup is objectively the best choice for cooling a current Ryzen CPU; the way the CPUs are designed, the actual CPU cores are offset slightly from center within the CPU package, and the I/O die is also under the heat spreader on the CPU, causing the cores to be offset. The Liquid Freezer III has offset mounting, so that the CPU cooler block is directly centered over where the cores are located for maximum cooling - most articles I’ve read are showing a 6 to 7 degree difference Celsius in CPU temperature. The radiator is also thicker at 38mm, so it has additional cooling capacity besides the advantages from the block mounting design.
Best of luck with your build, and I hope you enjoy!
definitely high end all around. Cant wait to see how it turns out once its all built this is no dial up machine thats for sure 
