What was the revenue for the fourth quarter of 2020 for Intel 
experiences for customers such as Tencent. We also announced the gold release of one API, our cross-industry open standards-based unified programming model that delivers a common developer experience across architectures.
Second, we've made strong progress extending our reach to accelerate our growth. Over the past several years, we have been making investments that have positioned us to lead key technology inflections such as AI, 5G network transformation, and the intelligent autonomous edge. We infuse AI capabilities into everything we make from the cloud to PCs and we see tremendous growth prospects as we build our position in data center training to complement the strength of our Intel Xeon for inference. We made a significant step in AI this quarter when Amazon announced EC2 instances that will leverage up to eight of our Habana Gaudi AI training accelerators, and deliver up to 40% better price-performance than current GPU-based EC2 instances for machine learning workloads.
We've also invested to drive networking workload convergence on Intel silicon. In 2020, we expanded our footprint into the Radio Access Network delivering Xeon SoCs, FPGAs, and custom solutions for 5G base station designs and reaching our goal of 40% share, two years ahead of our original target. Today, we are the leading network silicon provider winning in the wireless, enterprise, and cloud networks, and delivering $6 billion in revenue this year, up approximately 20% versus 2019. Finally, we have enviable assets to lead the explosive growth of intelligent and autonomous edge computing.
Our IOTG and Mobileye businesses have combined annual revenue of $4 billion. Mobileye delivered a record fourth quarter and had an explosive start to 2021 with a number of exciting CES announcements. Third, we've maintained our discipline in thoughtfully allocating our shareholders' capital. Since 2015, we have grown revenue by more than $22 billion and more than doubled EPS.
We've driven spending from 36% of revenue to 25% of revenue while investing in manufacturing capacity expansion, adding more than $1 billion of R&D targeted to higher growth initiatives, and focusing our product portfolio. As a result, we anticipate approximately $12 billion in proceeds from our NAND and McAfee exits over time. At the same time, we've been delivering substantial capital returns to shareholders, including $19.8 billion in 2020 alone through dividends and share buybacks, the latter of which included a $10 billion accelerated share repurchase announced in August. Building on this, today, we announced that we are increasing our annual dividend by $0.07, or 5% from $1.32 to $1.39 per share.
Before I pass it to George for more details on our fourth-quarter results, I want to reiterate that I couldn't be more proud of the team at Intel and I cherish the time I've spent here. I look forward to watching Pat and the team's continued progress as they build on Intel's purpose to deliver breakthrough technology that enriches the lives of everyone on the planet. I also thank our investors and analysts on the line today for their continued support of Intel and for our valued engagements over the years.
George Davis -- Chief Financial Officer
Thanks, Bob, and good afternoon everyone. Q4 marked a much stronger than expected finish to a record year. Both Mobileye and our PC-centric segment achieved record quarters. Q4 revenue was $20 billion, exceeding our guidance by $2.6 billion.
The revenue beat was broad-based led by stronger than expected notebook and cloud demand, along with contributions from desktop and enterprise and government. Datacenter related demand also led to stronger revenues in NAND. The gross margin for the quarter was 58.4%, exceeding the guide by 3 points due to flow through on higher revenue, and the benefit of Ice Lake server achieving production qualification prior to year-end. Q4 EPS was $1.52, $0.42 above our guide due to strong operational performance, and further boosted by gains from our ICAP portfolio.
Excluding a one-time tax adjustment, about two-thirds of our
experiences for customers such as Tencent. We also announced the gold release of one API, our cross-industry open standards-based unified programming model that delivers a common developer experience across architectures.
Second, we've made strong progress extending our reach to accelerate our growth. Over the past several years, we have been making investments that have positioned us to lead key technology inflections such as AI, 5G network transformation, and the intelligent autonomous edge. We infuse AI capabilities into everything we make from the cloud to PCs and we see tremendous growth prospects as we build our position in data center training to complement the strength of our Intel Xeon for inference. We made a significant step in AI this quarter when Amazon announced EC2 instances that will leverage up to eight of our Habana Gaudi AI training accelerators, and deliver up to 40% better price-performance than current GPU-based EC2 instances for machine learning workloads.
We've also invested to drive networking workload convergence on Intel silicon. In 2020, we expanded our footprint into the Radio Access Network delivering Xeon SoCs, FPGAs, and custom solutions for 5G base station designs and reaching our goal of 40% share, two years ahead of our original target. Today, we are the leading network silicon provider winning in the wireless, enterprise, and cloud networks, and delivering $6 billion in revenue this year, up approximately 20% versus 2019. Finally, we have enviable assets to lead the explosive growth of intelligent and autonomous edge computing.
Our IOTG and Mobileye businesses have combined annual revenue of $4 billion. Mobileye delivered a record fourth quarter and had an explosive start to 2021 with a number of exciting CES announcements. Third, we've maintained our discipline in thoughtfully allocating our shareholders' capital. Since 2015, we have grown revenue by more than $22 billion and more than doubled EPS.
 We've driven spending from 36% of revenue to 25% of revenue while investing in manufacturing capacity expansion, adding more than $1 billion of R&D targeted to higher growth initiatives, and focusing our product portfolio. As a result, we anticipate approximately $12 billion in proceeds from our NAND and McAfee exits over time. At the same time, we've been delivering substantial capital returns to shareholders, including $19.8 billion in 2020 alone through dividends and share buybacks, the latter of which included a $10 billion accelerated share repurchase announced in August. Building on this, today, we announced that we are increasing our annual dividend by $0.07, or 5% from $1.32 to $1.39 per share.
Before I pass it to George for more details on our fourth-quarter results, I want to reiterate that I couldn't be more proud of the team at Intel and I cherish the time I've spent here. I look forward to watching Pat and the team's continued progress as they build on Intel's purpose to deliver breakthrough technology that enriches the lives of everyone on the planet. I also thank our investors and analysts on the line today for their continued support of Intel and for our valued engagements over the years.
George Davis -- Chief Financial Officer
Thanks, Bob, and good afternoon everyone. Q4 marked a much stronger than expected finish to a record year. Both Mobileye and our PC-centric segment achieved record quarters. Q4 revenue was $20 billion, exceeding our guidance by $2.6 billion.
The revenue beat was broad-based led by stronger than expected notebook and cloud demand, along with contributions from desktop and enterprise and government. Datacenter related demand also led to stronger revenues in NAND. The gross margin for the quarter was 58.4%, exceeding the guide by 3 points due to flow through on higher revenue, and the benefit of Ice Lake server achieving production qualification prior to year-end. Q4 EPS was $1.52, $0.42 above our guide due to strong operational performance, and further boosted by gains from our ICAP portfolio.
Excluding a one-time tax adjustment, about two-thirds of our