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Ethereum Targets Sept. 19 for GPU-Based Mining Switch

With The Merge, the cryptocurrency will move from a traditional mining model to a 'Proof of Stake' algorithm. But no one will be surprised if the new deadline is pushed back (again).

 & Michael Kan Principal Reporter

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The developers behind Ethereum remain confident the cryptocurrency will phase out GPU-based mining soon. But it won’t occur next month as originally thought. 

Instead, the Ethereum community is targeting the week of Sept. 19 as a “potential” date to kick off The Merge, or when the cryptocurrency transitions from its traditional mining model to a "Proof of Stake" algorithm. Tim Beiko, an engineer at the Ethereum Foundation, mentioned the proposed timeline last week during a meeting with developers.  

However, the Ethereum community is cautioning that the date is merely meant for planning purposes, and assumes the process can occur without a major hitch. “It’s not do-or-die, it’s a coordination point to help everyone plan. A lot of node operators have a lot of work to do between now and then, and targets help to focus minds,” wrote Ben Edgington, one of the developers behind The Merge. 

Still, the development is good news for graphics card supplies. Ethereum mining has been blamed as a major reason for the great GPU shortage that started in late 2020 and persisted until earlier this year when demand finally waned. Since then, many Ethereum miners have bailed or temporarily stopped due to the cryptocurrency’s value crashing in recent months and the Proof of Stake transition on the horizon. 

Phasing out GPU-based mining also promises to drastically reduce power consumption for the cryptocurrency. The problem is that the Ethereum Foundation has been trying to migrate from a mining-based model to a Proof of Stake for years, but the developers have repeatedly delayed the transition. Back in May, Ethereum co-founder Vitalik Buterin also said it’s possible The Merge could be pushed to October or later in the year if errors pop up, so don't be surprised if Sept. 19 passes without a full transition.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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