AMD Ryzen 9 7900, Ryzen 7 7700, and Ryzen 5 7600 CPUs Can Reach 170W PBO Profiles On MSI X670 & B650 Motherboards, Performance Demonstrated


MSI Outperforms AMD Ryzen 9 7900, Ryzen 7 7700, and Ryzen 5 7600 CPUs With Up To 170W PBO Profiles On X670 & B650 Motherboards

AMD recently unveiled its Ryzen 7000 Non-X CPUs, which have a TDP of 65W. These CPUs are ideal for mainstream desktop PCs and are less expensive than their ‘X’ counterparts. Non-X CPUs, unlike Intel, retain their unlocked design, allowing PC builders to enjoy a variety of tuning options. MSI is demonstrating a few of those tuning options on their X670 and B650 motherboards, which will undoubtedly help with performance.

The Config TDP (cTDP) option was added to the X670 and B650 motherboards with the latest MSI AGESA BIOS Firmware, which we covered yesterday. The AMD Ryzen 7000 Non-X line has a CPU TDP of 65W, a PPT of 88W, a TDC of 75A, and an EDC of 150A by default. The Config TDP (cTDP) option allows users to adjust the PBO profiles from 45W to 170W. The total number of modes is 45W/65W/95W/105W/125W/170W. Users can enjoy a higher boost clock as well as improved performance on their Non-X CPUs with this setting.

According to MSI, adjusting the PBO is the simplest way to overclock the Ryzen CPUs. As previously stated, MSI motherboards have a total of six cTDP profiles from which to choose based on your cooling solution. Starting with the AMD Ryzen 9 7900, users can gain 9% more performance with the 95W cTDP mode and 13% more performance with the 170W cTDP mode. This would essentially provide slightly better performance than the Ryzen 9 7900X at a lower price point. You can also reduce the PBO profile to 45W if you’re only going to do light workloads and want to save energy while still getting good performance (84% of the stock Ryzen 9 7900).

The AMD Ryzen 7 7700 gains 2% in performance with the 95W TDP and 3% with the 170W TDP. This is because the CPU’s 142W PPT is already at its limit. The Ryzen 5 7600 also sees a 1% performance boost at 95W but actually degrades at 170W TDP due to thermal throttling. As a result, it appears that the higher-end Ryzen 9 Non-X CPUs benefit from this more than the entry-level SKUs. It will be interesting to see if the same options are enabled for AMD’s Ryzen 7000 X3D lineup, which also supports PBO but does not support manual overclocking.

The AMD Ryzen 7000 Non-X CPU lineup will be available on January 10th, followed by the Ryzen 7000 X3D parts in February. MSI will release additional BIOS updates in the coming weeks to ensure stable performance and support for the most recent chips.


Source: chi11eddog


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