AMD's latest Ryzen 7 5800XT "zen 3" CPU can reach above a boost clock of almost 5 GHz without hitting the default 105W TDP.
AMD launched their newest Ryzen 5000XT CPUs just three days ago, adding two new SKUs to the existing Zen 3 lineup on the AM4 platform. AMD has been doing such refreshes previously but it's mostly a small refresh of the existing chips to attain higher performance. But it looks like the 5000XT CPUs can achieve more than what AMD advertised. As the processors have already hit the shelves, we have some sneak peek into what these SKUs are capable of even before the reviews are published.
Popular hardware leakier @Zed__Wang(MEGAsizeGPU) has tested his AMD Ryzen 7 5800XT CPU and found that it can go beyond its boost clock of 4.8GHz. As visible in the HWiNFO, the Ryzen 5800XT can reach a good 4941.1MHz at 1.387V. What's surprising is the 5800XT's ability to reach this frequency at 88.977W, which is lower than its default TDP rating while the average power consumption remains at less than 70W.
MEGAsizeGPU says that he was running the 5800XT in 65W 'ECO' mode using the Noctua L12S low-profile CPU cooler, which can hardly keep up with the premium cooling solutions. However, the temperature does reach 80°C, which is an indication that it will be better to use a higher-end air cooler or AIO for maintaining lower thermals.
In another HWiNFO window, we can see that the user has set the ratio at x49.50 to reach this clock speed and used the ASRock B550 Phantom Gaming-ITX/ax motherboard, which is although a solid ITX motherboard for overclocking, is still not on the level of high-end B550 motherboards using the ATX form-factor.
Nonetheless, the AMD Ryzen 5800XT and
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