AMD’s upcoming line of 7000X3D processors, which includes the Ryzen 9 7950X3D, Ryzen 9 7900X3D and Ryzen 7 7800X3D, promises incredible gaming performance thanks to massive 3D V-Cache. However, these newer processors apply caching to only one of the two CCDs. (opens in new tab) (the complex core die) make up the chip architecture, so the software and firmware must ensure that the game uses the correct CCD. Otherwise you won’t get any performance benefit. For non-gaming tasks, a non-cached CCD may be a better choice as it can reach higher boost clocks.
When assigning tasks to cores (or CCDs), both the OS and firmware can make mistakes and send higher priority workloads to slower threads. Fortunately, it may soon be possible to tweak the CCD priority in the BIOS. This allows fine-grained control over which core gets which task in an OS-independent way.
Twitter user HXL (@9550pro) share screenshot (opens in new tab) From the new Asus X670 Beta BIOS (version 0921 to be exact) it shows many advanced settings that can be used to control the X3D core.These images were originally s (opens in new tab)Join Asus’s forums. These settings contain many different algorithmic conditions and actions that can trigger the correct CCD core. HXL notes that these settings are built into his BIOS and are therefore OS independent.
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As we reported yesterday, these tweaks are important for non-gaming workloads, especially since the Ryzen 9 7950X3D is rumored to have a lower V-Cache CCD frequency than the cheaper 7800X3D. , each of the two CCDs has eight cores.
AMD has also documented that non-V-cache CCDs can achieve higher clocks.and Interview PC World (opens in new tab) In January, AMD’s head of product management Scott Stankard said, “By not stacking one of the CCDs, we were able to get a 1T boost, max T boost up to 5.7 GHz.”
| CPU | Cores/Threads (P+E) | P-Core Base/Boost Clock (GHz) | Cache (L2/L3) | TDP |
|---|---|---|---|---|
| Ryzen 9 7950X3D | 16/32 | 4.2/5.7 | 144MB (16+128) | 120W |
| Ryzen 9 7900X3D | 12/24 | 4.4/5.6 | 140MB (12+132) | 120W |
| Ryzen 7 7800X3D | 8/16 | 4.x/5.0 | 104MB (8+96) | 120W |
For more information and links to download the Beta BIOS, visit this thread (opens in new tab) On Asus’ ROG forum. However, I wouldn’t recommend trying beta BIOSes, especially if the chip itself isn’t available until his February 28th. Additionally, these files are on a Dropbox linked from the forum, not the official source. For your machine’s security, wait until something official is available.
What we can read from this news is that many, if not all, X670 motherboards (including some of the best motherboards) will soon have a BIOS update that will allow fine-tuning which workload is assigned to which CCD. is to be provided. Presumably other chipsets such as the B650 will also enjoy these benefits. If you need any of these, see our tutorial on how to update the BIOS on your PC.
