As December 2016 drew to a close, the Bitcoin mining industry was undergoing a quiet but profound transformation. Bitcoin had surged to approximately $778, representing a remarkable 120% gain since the start of the year, and the network’s hash rate was climbing to unprecedented levels. Behind this growth was a new generation of mining hardware that was rapidly professionalizing an industry once dominated by hobbyists running GPUs in their bedrooms.
TL;DR
- Bitcoin traded at $778 in mid-December 2016, up 120% year-to-date from roughly $430
- The Ebit E9+ mining rig launched with 9 TH/s hashrate using 14nm ASIC chips — a significant efficiency leap
- Bitcoin trading volume exploded to 113 million coins in December 2016, compared to just 7 million in December 2013
- Chinese miners dominated production as yuan devaluation and capital controls drove local demand for BTC
- The mining industry was transitioning from hobbyist operations to industrial-scale data centers
The Hardware Revolution: Ebit E9+ and 14nm ASICs
December 2016 marked the arrival of a new class of Bitcoin mining hardware that would accelerate the network’s hash rate growth dramatically. Chinese manufacturer Ebang released the Ebit E9+, a mining rig powered by 14-nanometer ASIC chips capable of delivering 9 terahashes per second (TH/s). This was a meaningful step forward in mining efficiency, as the industry moved from the older 16nm and 28nm chip generations to the more power-efficient 14nm process node.
The significance of the 14nm transition cannot be overstated for mining economics. Smaller transistor sizes meant that each chip could perform more calculations per watt of electricity consumed, directly impacting profitability. In an industry where electricity costs could make or break a mining operation, even modest improvements in energy efficiency translated to substantial competitive advantages. The E9+’s 9 TH/s hashrate was roughly equivalent to what an entire small-scale mining farm might have produced just two years earlier.
This hardware evolution was part of a broader trend. Mining equipment manufacturers, predominantly based in China, were engaged in an arms race to produce ever more powerful and efficient ASIC chips. Companies like Bitmain, Canaan Creative, and Ebang were investing heavily in research and development, pushing the boundaries of semiconductor manufacturing to gain an edge in the increasingly competitive mining hardware market.
The Hash Rate Surge and Network Security
As new mining hardware came online throughout late 2016, Bitcoin’s network hash rate climbed steadily, reinforcing the security of the blockchain. A higher hash rate meant that any attacker seeking to execute a 51% attack would need to control a larger proportion of the network’s total computing power, making the blockchain more resistant to tampering and double-spend attempts.
The growing hash rate also reflected the increasing economic incentive to mine Bitcoin. With the price surging from around $430 at the start of 2016 to nearly $780 by mid-December, mining profitability had improved significantly even as the network difficulty adjusted upward. The block reward of 25 BTC per block was worth approximately $19,450 at December prices, providing substantial revenue for efficient mining operations. The next halving, which would reduce this reward to 12.5 BTC, was just six months away, scheduled for mid-2017, adding urgency for miners to capitalize on current reward levels.
China’s Dominance in Mining
By December 2016, China had established overwhelming dominance in Bitcoin mining, controlling an estimated 70% or more of the network’s hash rate. Several factors contributed to this concentration. Chinese hardware manufacturers had a natural advantage in sourcing ASIC chips and assembling mining rigs, often getting access to the latest equipment before international competitors. More importantly, certain Chinese provinces offered extremely cheap electricity — particularly Sichuan and Yunnan, where abundant hydropower during the wet season provided some of the lowest energy costs in the world.
The macroeconomic environment in China was also driving demand for Bitcoin. The Chinese yuan had been steadily depreciating throughout 2016, with the People’s Bank of China allowing gradual weakening that saw the currency hit eight-year lows against the dollar. Chinese citizens facing capital controls — which limited individuals to $50,000 in foreign currency purchases per year — increasingly turned to Bitcoin as a way to move wealth offshore. This capital flight dynamic was a key driver of Bitcoin’s 2016 price rally, with Chinese exchanges like BTC China, Huobi, and OKCoin consistently ranking among the highest-volume trading platforms globally.
The relationship between Chinese mining and Chinese Bitcoin trading created a powerful feedback loop. Miners earned Bitcoin, sold portions on Chinese exchanges to cover operational costs, and the resulting trading volume attracted more participants to the ecosystem. December 2016 saw an extraordinary 113 million bitcoins traded across exchanges, a sixteen-fold increase from the 7 million traded in December 2013 during the previous major price peak.
The Mining Industry Grows Up
The hardware advances of late 2016 were symptomatic of a broader maturation in the mining industry. Gone were the days when individuals could profitably mine Bitcoin with a single graphics card or even a single early-generation ASIC miner. The industry had evolved into a professional, capital-intensive operation requiring sophisticated facility management, advanced cooling systems, and deep expertise in semiconductor technology and energy procurement.
Mining farms were increasingly being built at industrial scale, with thousands of machines arranged in purpose-built facilities in regions with favorable electricity rates. These operations required significant upfront capital investment — not just for the mining hardware itself, but for electrical infrastructure, cooling systems, and the technical expertise to keep everything running at peak efficiency. The economics favored large operators who could negotiate bulk electricity rates and access the latest hardware at volume discounts.
This professionalization had important implications for Bitcoin’s decentralization narrative. While the protocol itself remained decentralized — no single entity controlled the blockchain — the mining infrastructure was becoming increasingly concentrated among a relatively small number of large operations, primarily located in China. This geographic and operational concentration would become a topic of intense debate within the Bitcoin community in the years that followed, particularly as the Chinese government began to scrutinize the cryptocurrency industry more closely.
Mining Economics at Year-End 2016
For miners operating in December 2016, the economics were compelling. With BTC at $778 and the block reward at 25 BTC, each block mined generated approximately $19,450 in revenue. The network was producing 144 blocks per day (one every 10 minutes on average), meaning total daily mining revenue across the entire network was roughly $2.8 million. Miners who had deployed the latest 14nm ASIC hardware and secured low-cost electricity were generating significant profits, reinvesting earnings into expanding their operations.
The total Bitcoin market capitalization stood at approximately $12.5 billion, with Bitcoin dominance at roughly 87% of the total cryptocurrency market. Ethereum held the number two position with a market cap of $681 million and a price of $7.83. The mining industry’s health was directly tied to Bitcoin’s market value, and the strong 2016 price performance had created a virtuous cycle of investment, hash rate growth, and increased network security.
Why This Matters
The mining industry’s evolution in late 2016 set the stage for the dramatic events of 2017. The deployment of increasingly powerful ASIC hardware and the concentration of mining operations in China would have far-reaching consequences for Bitcoin’s governance, security model, and geographic distribution. The hardware arms race that accelerated in December 2016 would continue to intensify, driving hash rate growth that would eventually make Bitcoin the most powerful computing network on Earth. Understanding this period of mining industrialization is essential for grasping how Bitcoin evolved from an experimental digital currency into a global financial infrastructure with billions of dollars in daily economic activity.
Disclaimer: This article is for informational and historical purposes only and does not constitute financial advice. Cryptocurrency markets are highly volatile. Always conduct your own research before making any investment decisions.
chinese dominance in 2016 mining was absolute – nobody could compete on scale
14nm asics revolutionized mining efficiency and consolidated the industry
industrial mining operations replaced hobbyists during this period