AMD (via Kepler_L2) launched a new Linux patch that exposes the cache configuration for its Navi 21, Navi 22, and Navi 23 silicon. The last is rumored to power the chipmaker’s upcoming Radeon RX 6600 series (or possibly RX 6500 series).

The description for the patch reads: “The L1 cache information has been up to date and the L2/L3 information has been added. The adjustments have been made for Vega10 and more recent ASICs. There are no adjustments for the older ASICs earlier than Vega10.” Therefore, it holds a ton of valuable information on each current and future AMD product.

Introduced with RDNA 2, Infinity Cache basically acts as a large L3 cache that is accessible by using the GPU. It’s there to assist enhance performance since AMD’s RDNA 2 graphics cards employ particularly slim memory interfaces. The Radeon RX 6800 XT for instance makes use of a 256-bit bus, however manages to mainly keep pace with the GeForce RTX 3080’s 320-bit bus that additionally consists of greater clocked GDDR6X memory.

Navi 21 (Sienna Cichlid) and Navi 22 (Navy Flounder) sport 128MB and 96MB of Infinity Cache, respectively. According to the new information, Navi 23 will wield 32MB of Infinity Cache. In assessment to Navi 22, we’re searching at a 66.7% discount on Navi 23. That must additionally assist cut down the die size, although at the cost of performance.

The jury is still out on whether AMD will use Navi 23 for the Radeon RX 6600 series, though. Some assume that Navi 23 should locate its way into the Radeon RX 6500 series instead. Regardless, AIDA64, a popular monitoring and diagnostics tool, currently obtained assist for Radeon RX 6600 series. Assuming that the software’s launch notes are accurate, the Radeon RX 6600 XT and RX 6600 will certainly be based totally around the Navi 23 die.

ASRock registered a couple of Radeon RX 6600 XT models with the Eurasian Economic Commission (EEC) now not so lengthy ago. It’s necessary to spotlight that no longer each product makes it to the market, however, if what ASRock submitted is true, the Radeon RX 6600 XT may additionally feature 12GB of GDDR6 memory. Realistically, it makes extra sense for the Radeon RX 6600 XT to have 8GB of GDDR6 memory throughout a 128-bit memory interface.

The fact that AIDA64 already helps the Radeon RX 6600 series hints that a plausible launch may additionally no longer be too a long way around the corner. We’re nevertheless waiting for a trimmed down Radeon RX 6700 with the usage of Navi 22, which we assume to see sometime in April.

Powerhouse Performance

The AMD Radeon RX 6000 Series graphics cards represent the forefront of extreme engineering and design to deliver ultra-high frame rates. Powerful new compute units, the all-new AMD Infinity Cache, and large amounts of GDDR6 memory enable the ultimate gaming experience.

4K Gaming Performance | Average over 10 Games

Radeon RX 6900 XT Up to 101 FPS

Radeon RX 6800 XT Up to 95 FPS

Radeon RX 6800Up to 81 FPS


AMD RDNA™ 2 architecture is the foundation for next-generation PC gaming graphics, the PlayStation 5 and Xbox Series S and X consoles. The groundbreaking RDNA architecture was first introduced at E3 2019, and since then has continuously evolved to spearhead the next generation of high-performance gaming. It’s the DNA that powers your games, the DNA that brings your games to life, the DNA that keeps evolving.

AMD RDNA 2 Powers Gaming​

AMD RDNA 2 architecture introduces significant architecture advancements in the form of an enhanced compute unit, a new visual pipeline, and an all-new AMD Infinity Cache, enabling high-resolution gaming performance with vivid visuals.

AMD Infinity Cache for Power Efficient Performance

AMD RDNA 2 Architecture is even more efficient than before with the introduction of AMD Infinity Cache, an all-new cache level that enables high bandwidth performance at low power and low latency. This global cache is seen by the entire graphics core, capturing temporal re-use and enabling data to be accessed instantaneously. Leveraging the best high-frequency approaches from “Zen” architecture, AMD Infinity Cache enables scalable performance for the future.

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