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takyon writes:

AMD Ryzen 7 5800X3D Review: 3D V-Cache Powers a New Gaming Champion

On average at 1080p, the 5800X3D is ~9% faster than the 12900K, which costs 30% more, and ~7% faster than the Core i9-12900KS, which costs a whopping 64% more. That means the Ryzen 7 58000X3D is now both the fastest gaming chip in our test suite and a better value for gaming specifically than the Core i9 models.

Overclocking either of Intel's Core i9 models requires a beefy cooler and robust motherboard. However, despite its much tamer overall power requirements, the Ryzen 7 5800X3D is still ~3% faster than the overclocked 12900K in our cumulative measurement.

[...] AMD's marketing claim is that the Ryzen 7 5800X3D is, on average, 15% faster than the Ryzen 9 5900X. The 3D V-Cache doesn't improve performance in all games, so this will vary, but we recorded a 21% increase over the 5900X at 1080p in our test suite, which is incredibly impressive.

The 5800X3D and the 5800X are built from the same basic design, but the X3D model has a 200 MHz lower boost and 400 MHz lower base clock than the 5800X. Despite that limitation, we recorded a massive 28% gain over the 5800X at 1080p, which is impressive. However, overclocking the 5800X3D's [DDR4] memory yielded an average performance increase of only about 1%, which isn't too meaningful.

[...] These results clearly show that the Ryzen 7 5800X3D is a chip designed specifically for gaming, not for leading-edge performance in application workloads. We've highlighted the 5800X3D beating the 12900K in gaming, but we'd be remiss if we didn't mention that the 12900K is 29% faster in single-threaded work and 62% faster in threaded applications. That chasm grows even larger with the Core i9-12900KS.

The Ryzen 7 5800X3D's CPU cores have access to 96 MiB of L3 cache instead of the 32 MiB of the Ryzen 7 5800X, and this is exactly what some games needed to see a performance boost.

For some people, this would be a "sidegrade". The 12-core Ryzen 9 5900X's price has collapsed to as low as $380, lower than the 5800X3D's $450 MSRP. This CPU is focused on gaming performance at the expense of application performance, due to the lower core count than the 5900X/5950X and lower clock speeds than the regular 5800X, unless an application can take advantage of the tripling of L3 cache.

Also at Guru3D.

See also: AMD Ryzen 7 5800X3D Review Roundup

Previously: AMD Ryzen 7 5800X3D CPU Could be in Short Supply When It Launches
AMD Announces the 5800X3D and New Low-End/Mid-Range Ryzen CPUs

Original Submission