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AMD confirmed that reaching 2,000 MHz on the clock Infinity fabric of the Ryzen 5000 CPU it may not be as easy as expected. If you were watching 4000MHz DDR4, you’d probably prefer to wait for BIOS updates.
In fact, PC Gamer claims that even using a Corsair Vengeance RGB Pro DDR4-4000MHz RAM along with the Ryzen 9 5900X when running FCLK above 1,800MHz, a failed attempt has occurred every time it has been tested.
AMD’s response was the following: “We are working on further optimizations for 1900-2000MHz fabric clocks in our next version of AGESA. AMD cannot guarantee that any sample (including the 5900X) will achieve these speeds. Although some current Ryzen 5000 samples can achieve tissue speeds. over 1900, we are confident that even more users will be able to achieve these speeds with future optimizations. If you remember about the 3000 series, many, but not all, users have been able to achieve a fabric speed of 1900. We think that it will be a similar situation with the 5000 and 2000MHz series processors “.
But why is it so important?
The main reason this is important is because you are looking for a 1: 1 ratio between the memory clock and Infinity fabric for optimal performance. Running 4,000 MHz memory (which is actually clocked at 2,000 MHz) along with an FCLK of 1,800 MHz will cause the buses to be out of sync as they could be.
This isn’t the first time we’ve seen this in FCLK, as XT chips can potentially run at 1,900 MHz. Some users have managed to get Infinity Fabric running at 1,900 MHz and memory at 3,800 MHz, although the real difference this has made in the games are not very clear. Also, not all processor, motherboard, and memory combinations have been successful, which is why AMD hasn’t made a lot of noise about this update.
AMD finally confirms that reaching 2,000 MHz in the Ryzen 5000 Infinity Fabric is not as easy as expected, will it be possible with future optimizations?
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