The best processor for PC gaming is on sale for $49 off at Amazon. The AMD Ryzen 7 9800X3D is up for grabs for $430 (was $479). Amazon doesn't list an end date for the discount, but considering the popularity of the high-performing 3D V-Cache CPU, it probably won't be available to purchase for $430 for long. The 9800X3D has been one of the best-selling CPUs on Amazon since its release last November. It has earned top-notch reviews from critics and customers alike.Amazon estimates orders placed today (September 22) will arrive anywhere from two weeks to a month from now.The 9800X3D is the fastest gaming CPU on the market today. Earlier this year, AMD released a pair of Ryzen 9 3D V-Cache CPUs that have similarly robust specs, just with more of a productivity focus over gaming. The Ryzen 9 9900X3D is available for $588 at Amazon, while the more popular 9950X3D is priced at $664 (was $699). But if you're looking for a gaming processor for a high-end rig, the 9800X3D is the best option on the AMD side.At the moment, the 9800X3D is slotted in the No. 2 spot on the Amazon's best seller chart for CPUs. The only processor ahead of it is the aforementioned AMD Ryzen 7 7800X3D, which is still a very good processor for gaming more than two years after its release. You can get the Ryzen 7 7800X3D for $358.49 (was $449) at Amazon.Sign up for GameSpot's Weekly Deals Newsletter: