Photo: Santiago Mejia, The Chronicle
Sam Duong
moves stock at Central Computers, where cryptocurrency miners are
purchasing all the high-end graphics processor units they can find.
At a computer store in downtown San Francisco, a five-shelf
cabinet normally filled with graphics cards — popular add-ons that soup
up PCs — stands bare.
It’s a strange but true sign that the cryptocurrency craze is
bleeding into the real world — with speculators taxing electrical grids
and silicon supplies in their quest to make digital money.
“We need as many as we can find,” said Donnie Williams, 36, a
Novato resident, as he and his business partner David Miller, 47, of
Pleasanton, paid $1,000 for the only graphics card in stock one day last
week at Central Computers near the Moscone Center. The two needed the
card to add to five they had already installed in their computing rig
inside Miller’s home.
People who help mine, or create, bitcoin and other cryptocurrencies
are snapping up the processors as the currencies have soared in value.
Whenever people buy and sell these digital coins, the transaction is
verified through a series of complex mathematical computations. Whoever
does that math earns some currency themselves. The high-end chips in
graphics cards process those computations faster, accelerating miners’
earnings.
The mining is also
taxing real-world energy systems: The
Energy Institute at UC Berkeley’s Haas School of Business notes studies that show bitcoin mining around the world is consuming more energy per year than the country of Bulgaria.
College students are using free dorm electricity to make a fortune. On Wednesday, Stanford
University issued
students a stern warning against using campus power or computers to
mine cryptocurrency, reminding students, “Stanford resources must not
be used for personal financial gain.”
The skyrocketing demand for graphics processors is good news for
companies like Santa Clara’s Advanced Micro Devices and Nvidia, which
make them. But shortages and price rises have angered other users, like
video game enthusiasts, who rely on the cards to make sure the latest
graphics-intensive games scream across their monitors.
Dan Sherman of St. Louis said he planned to build a new gaming
computer, which he needed for his job as a video game commentator and
streamer for an e-sports organization.
“It was super shocking to see the prices go up,” Sherman, 32, said in
an email. “I was not expecting this at all. It’s really disappointing
that I’ll have to wait to move forward with my plans, or maybe won’t get
a chance to at all.”
The video game news site
Kotaku has blamed miners for causing “the great graphics card shortage of 2018.”
“Gamers are resentful of miners,” said Craig Yeung, general manager
of the six-store Central Computers chain, based in Santa Clara. His
stores are capping sales at four per customer to try to keep some
inventory available for regular customers, like businesses or video game
players.
Caught by the shortage are engineering and architectural firms, which
use increasingly sophisticated 3-D and virtual reality software for
computer-aided design work. Video game and movie special-effects studios
also rely on the graphics processor units inside high-end workstations.
But Yeung said he receives email from cryptocurrency miners around the world seeking as many graphics cards as they can get.
The recent run-up in cryptocurrency prices — bitcoin is now
worth $11,000, up from $1,000 a year ago though down from a recent peak
near $20,000 — has created a gold-rush atmosphere for small-scale miners
like Williams and Miller, who have spent about $12,000 on equipment in
the last month to cash in on the cryptocurrency craze.
Typically, miners will connect several cards together to work as one
custom-built machine, with a motherboard, cooling fans, power
converters, monitor and software. The rig will run all day and all
night, processing the complex transactions that combined, make up the
community-run accounting system for transactions in bitcoin, Ethereum,
ripple and other new currencies.
These rigs plug into an elaborate online ecosystem designed to keep
decentralized cryptocurrency transactions honest. The miners play a
vital role in verifying transactions. For their efforts — if their
computers are fast enough to keep up — they are rewarded in
cryptocurrency.
“For me, it’s like investing in stocks and gambling at the same
time,” Miller said. “It’s got that excitement. Ever bet on a horse race?
You root for your horse, if it comes in, it comes in. If it doesn’t …”
And so, the top-rated video graphics cards using processors made by
Advanced Micro Devices and Nvidia are hard to find in stores, and the
shortages have caused prices to rise. Miller and Williams, for example,
bought an Nvidia GeForce GTX 1080 card that used to cost about $600,
said Central Computers store manager Candy Kwong.
Because of the rush, Central Computers limits purchases to four cards
per customer. Nvidia itself has placed a two-per-customer limit on
orders online. Both Nvidia and AMD declined to comment for this story,
citing SEC regulations requiring a “quiet period” before they release
quarterly earnings reports.
Prices online for top-range AMD and Nvidia cards have almost doubled
in the past two months, said Phillip Carmichael, founder of
PCPartPicker.com, an Austin, Texas, company that tracks prices of parts
for customers who build their own computers.
“Our users are certainly not happy with the current situation, but
there’s not much to do right now besides wait it out,” Carmichael said
in an email.
Eugene Chung, CEO of San Francisco’s Penrose Studios, said his
startup relies on graphics cards to create virtual reality animation
stories. He doesn’t see the shortages as having an immediate impact on
his business, since capital costs can be spread out over time. But he
does wonder whether rising graphics-card costs will affect his business
in other ways. To run virtual reality headsets, consumers need PCs with
powerful graphics cards. If those get more expensive, it could tamp down
growth in the virtual reality market.
“My biggest concern is for consumers,” Chung said.
But it’s also hard to predict what will happen in the future because
the cryptocurrency market “is very transitory,” said Gregory La Blanc, a
lecturer at UC Berkeley’s Haas School of Business.
Small-scale miners like Miller and Williams have to contend with
large-scale mining operations in places like China, Russia and Iceland,
where electricity is cheaper and the cool climate keeps the chips from
overheating, he said. The recent surge in bitcoin’s price — it reached
$19,783 in mid-December before falling sharply — has drawn more people
into the market despite tough competition.
“Ultimately, it sounds like the Gold Rush in California in the 1840s,
when you could show up with a pickaxe and a pan and make money in the
first couple of years,” La Blanc said. “But the big mining companies
showed up with hydraulics and heavy-duty machinery and steam engines and
put these little guys out of business fairly quickly.”
Such prospects are not putting off Rod Mohammed, 25, of Riverside,
who dropped by Central Computers the day after Miller and Williams. The
only GTX 1080 card in stock, which a clerk had placed in the otherwise
barren graphics card section moments earlier, was already priced $50
higher.
Photo: Santiago Mejia, The Chronicle
Rod Mohammed views the last high-end
graphics processing unit at the Central Computers store in South of
Market.
He said he’d been scouring computer stores for those elusive
cards: “Fry’s, Best Buy, I mean everywhere, and nobody’s got them.”
Mohammed has built a rig with six graphics cards he bought last month,
when they were $670 each.
“When I saw (the value of) bitcoin shoot from a thousand bucks to
$20,000, I said, ‘I don’t want to miss this, I don’t want to be that guy
who’s slapping himself in the face for not jumping in at the right
time,’” he said. “And if you figure you can make over a thousand bucks a
month extra profit, why not, right?”
Ultimately, he didn’t buy the lone card available. “One doesn’t do me
any good, you’ve got to get six of these,” he said. “I don’t know why
anyone would want to buy just one, unless they’re just gaming.”
Benny Evangelista is a San Francisco Chronicle staff writer. Email: bevangelista@sfchronicle.com Twitter: @ChronicleBenny
Bitcoin mining explained
A bitcoin is a digital token that you can send electronically to
anyone in the world. A bitcoin is a type of cryptocurrency — the general
term for any currency whose value derives from computer code rather
than the backing of a physical good or government guarantee.
No single person or company runs the network on which bitcoin is
exchanged. Instead, transactions are recorded by computers on a digital
ledger. Because the transactions aren’t centrally stored, people have to
verify them by running complex mathematical equations — essentially,
solving a puzzle.
Solving the puzzle is known as “mining,” and it yields a prize in the
form of more bitcoin, the reward for verifying transactions. The cost
of mining is computing power; generally speaking, the more computing
power a miner uses, the better the chance of solving the puzzle and
getting the prize.
That computing power has a price — the cost of the hardware and the electricity to run it. Crescent Electric
estimates
that it costs $6,200 in California to mine one bitcoin, based on the
current price of electricity in the state. A bitcoin is currently worth
almost twice that, making for a nice profit margin.
The microprocessors in standard PCs aren’t as good at solving
equations as the specialized processors found on graphics cards. By
rigging graphics cards together, miners improve their odds.
— New York Times and Chronicle staff