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New Radeon RX 6600 XT is reportedly super-efficient at crypto mining

AMD RX 6600 XT promotional image

AMD's newly released $379 Radeon RX 6600 XT graphics card may be an Ethereum (ETH) mining powerhouse if this performance leak from yesterday is to be believed. For miners, performance per watt is more often the most valuable metric and the RX 6600 XT can apparently output 32MH/s with the GPU sipping just 55W of power after some tweaks according to a video by YouTuber Dizzy Mining.

The RX 6600 XT is based on the full Navi 23 chip and consists of 32 Compute Units running at a game clock of 2,359MHz. It packs 8GB GDDR6 memory that's clocked at 2,000MHz. This YouTuber apparently had an MSI Gaming X variant whose core game clock is even higher at 2,428MHz.

Since ETH mining is memory intensive, the video creator clocked his purported MSI core down to around 1.2GHz and overclocked the VRAM up to 2.2GHz, which is the limit imposed by AMD. As a result, the GPU power (indicated by HWiNFO64 as GPU ASIC Power) dropped significantly down to just 55W while doing 32.16MH/s EThash on DaggerHashimoto (image above).

Below is a chart prepared by Redditor Trollatopoulous which compares the performance per watt (PPW) of the 6600 XT against other GPUs using this alleged hash output. Assuming the performance shown by Dizzy Mining is accurate, this makes the new Radeon RX 6600 XT the most efficient Ethereum mining GPU.

For gamers, this could signal bad news as miners will be very enticed by this level of PPW. And perhaps to make matters worse, the price of ETH has also been rising for a couple of days and is currently sitting at $3,243.21 according to CoinDesk.

Source: Dizzy Mining (YouTube)

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