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Ethereum Looks to Phase Out GPU Mining in August With Move to Proof-of-Stake

If it happens, then demand for GPUs among cryptocurrency miners could seriously dampen, making it easier for consumers to buy a PC graphics card at normal prices.

 & Michael Kan Principal Reporter

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After numerous delays, Ethereum might finally be close to phasing out GPU-based mining. 

Ethereum co-founder Vitalik Buterin today said the cryptocurrency is aiming to transition from its traditional mining model to a “Proof-of-Stake” algorithm later this summer, likely in August. 

“We’ve been working on Proof-of-Stake almost seven years now, but finally all of that work is coming together,” he said at the ETH Shanghai Web 3.0 Developer Summit.

Buterin image

Ethereum mining has taken some of the blame for the great PC graphics card shortage, which only began to abate earlier this year. The thin supplies led to skyrocketing prices for GPUs and rampant scalping across the market.

However, the mining should come to an end once Ethereum switches to Proof-of-Stake, which nixes the need to rely on energy-intensive GPUs to maintain the cryptocurrency’s blockchain. Once the transition occurs, Ethereum is expected to cut its energy costs by as much as 99.5%. 

Of course, long-time Ethereum watchers might be rolling their eyes at Buterin’s announcement. Developers behind the cryptocurrency have been promising a transition to Proof-of-Stake for years, only to delay its implementation over and over again. In his comments on Friday, Buterin acknowledged it’s possible Proof-of-Stake could be derailed again if an error pops up. 

“There is always the risk of problems, there is always the risk of delays,” he said. “And so September is possible, and October is maybe possible as well. But The Merge is, at this point, looking like very close to happening. So Ethereum will finally become a proof-of-stake network.”

If Proof-of-Stake does occur on time, then this could help free up demand for GPUs right as Nvidia and AMD are expected to release next-generation graphics cards. Still, it’s possible miners could shift to another cryptocurrency once Ethereum transitions to Proof-of-Stake. One Ethereum miner told PCMag on Thursday he’s already been preparing by learning to mine other coins with his existing supply of GPUs. 

In the meantime, Buterin said the developers of the cryptocurrency are rolling out a Proof-of-Stake model on an Ethereum test network on June 8. “So this will be a major test, larger than any of the tests that we’ve done before. Taking a large existing test network with many applications in Proof-of-Work, and moving it to Proof-of-Stake” he said. “And if everything goes well, then the likely plan is for The Merge to happen in the summer.”

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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