AMD EPYC 9845 Server Processor | 160-Core 3nm CPU, 3.7GHz Boost, DDR5-6400, PCIe 5.0 for Data Centers

AMD EPYC™ 9845 Server Processor | 160-Core 3nm CPU, 3.7GHz Boost, DDR5-6400, PCIe 5.0 for Data Centers

In the dynamic landscape of enterprise data centers, where artificial intelligence (AI), high-performance computing (HPC), and mission-critical applications require exceptional power and efficiency, the AMD EPYC™ 9845 Server Processor emerges as a transformative solution. Released in October 2024 as part of AMD’s EPYC 9005 series (codenamed Turin), this 3nm server CPU redefines industry performance standards by offering unparalleled core density, memory bandwidth, and connectivity capabilities to support the most demanding modern workloads. Whether deployed for AI model training, large-scale data analytics, media streaming, or virtualization, the EPYC 9845 delivers the reliability, speed, and scalability that enterprises and data center operators require to maintain a competitive edge.

Unmatched Core Density & Performance: 160 Cores for Next-Generation Workloads

At the core of the AMD EPYC 9845 lies an advanced configuration built on AMD’s cutting-edge Turin architecture and manufactured using TSMC’s 3nm process technology—one of the most sophisticated manufacturing processes currently available. With 160 physical cores and 320 threads (enabled by AMD’s Simultaneous Multithreading, SMT), the EPYC 9845 provides exceptional parallel processing capabilities, making it ideally suited for multi-threaded workloads that demand substantial computational resources. Unlike legacy server processors, which struggle to manage concurrent tasks effectively, the EPYC 9845’s high core count ensures consistent performance even when running dozens of virtual machines (VMs), containerized applications, or AI inference workloads simultaneously.

The processor’s clock speed specifications further enhance its performance capabilities: a 2.1GHz base clock delivers consistent, reliable performance for routine workloads, while a 3.7GHz maximum boost clock provides the necessary processing power for latency-sensitive tasks requiring single-threaded performance. Additionally, the EPYC 9845 features an all-core boost speed of 3.25GHz, ensuring that the processor maintains high performance levels without throttling even when all 160 cores are fully utilized. This balance of core density and clock speed positions the EPYC 9845 as a versatile solution capable of addressing both latency-sensitive and throughput-intensive workload requirements.

When compared to legacy server processors—such as the Intel Xeon E3-1283L v4, which offers only 4 cores and 8 threads—the EPYC 9845 delivers a 40x increase in core count and a 40x increase in thread count, alongside a 3nm versus 14nm process advantage that translates to superior efficiency and performance. This generational leap in core density enables data centers to reduce their physical server footprint, thereby lowering power consumption and operational costs while increasing overall throughput.

Cutting-Edge Memory & Connectivity: DDR5-6400 & PCIe 5.0

The AMD EPYC 9845 is equipped with industry-leading memory and connectivity features, engineered to eliminate performance bottlenecks and ensure seamless data flow between the processor, memory, and storage subsystems. The processor supports DDR5 memory with speeds of up to 6400 MT/s (megatransfers per second), positioning it among the fastest server processors available for memory-intensive workloads such as AI training, big data analytics, and in-memory databases. With 12 memory channels per socket, the EPYC 9845 delivers a per-socket memory bandwidth of up to 614 GB/s—more than 30x the bandwidth of the Intel Xeon E3-1283L v4—and a maximum memory capacity of 6 TB per socket, enabling data centers to handle large datasets without compromising performance.

In addition to its advanced memory support, the EPYC 9845 features PCIe 5.0 connectivity, with 128 PCIe 5.0 lanes per socket. PCIe 5.0 offers twice the bandwidth of PCIe 4.0 (up to 32 GT/s per lane), facilitating faster data transfer between the processor and high-speed peripherals such as NVMe SSDs, GPUs, and network interface cards (NICs). This capability is critical for AI and HPC workloads that rely on rapid access to storage and accelerators, as well as for virtualization environments that require high I/O throughput to support multiple VMs.

The processor also supports ECC (Error-Correcting Code) memory, a critical feature for data centers managing mission-critical data. ECC memory detects and corrects single-bit errors and identifies multi-bit errors, ensuring data integrity and preventing system failures that could result in costly downtime. With ECC support, the EPYC 9845 provides the level of reliability required for enterprises to run business-critical applications with confidence.

3nm Process Technology: Efficiency & Power Optimization

Manufactured using TSMC’s 3nm process technology, the AMD EPYC 9845 delivers a significant improvement in power efficiency compared to previous-generation server processors. The 3nm process reduces transistor size, allowing AMD to integrate more cores into a compact die while minimizing power consumption per core. This translates to enhanced performance per watt—a key metric for data centers seeking to reduce their carbon footprint and operational costs.

The EPYC 9845 features a default TDP (Thermal Design Power) of 390W, with AMD’s Configurable TDP (cTDP) technology enabling operators to adjust power consumption between 320W and 400W based on workload requirements. This flexibility allows data centers to optimize power usage across different workload scenarios—reducing power consumption during off-peak hours or for less demanding tasks, and increasing power allocation to support peak performance when required. While the EPYC 9845’s TDP is higher than that of legacy processors such as the Intel Xeon E3-1283L v4 (47W), this difference reflects its significantly higher core count and performance capabilities, and its 3nm process ensures superior performance per watt compared to older, less dense processors.

The 3nm process also enhances thermal management, allowing the EPYC 9845 to operate at lower temperatures even under heavy workloads. This reduces the need for expensive cooling solutions, further lowering operational costs for data centers. Additionally, the processor’s advanced power management features—including AMD’s Precision Boost technology—dynamically adjust clock speeds based on workload demand, ensuring efficient power utilization and optimal performance at all times.

Advanced Security & Reliability: Built for Enterprise-Grade Environments

Data center security is a paramount concern for enterprises, and the AMD EPYC 9845 is equipped with a comprehensive suite of advanced security features designed to protect sensitive data and ensure system integrity. The processor incorporates AMD Infinity Guard, a robust security framework that provides hardware-level protection against a wide range of threats, including malware, data breaches, and unauthorized access.

Key security features of the EPYC 9845 include secure boot, which ensures that only trusted firmware and operating systems are loaded during system initialization; memory encryption, which encrypts data in memory to prevent unauthorized access in the event of a system compromise; and secure virtualization, which isolates VMs to mitigate cross-VM attack vectors. These features are essential for data centers handling sensitive data, such as financial institutions, healthcare providers, and government agencies.

In addition to its security capabilities, the EPYC 9845 is engineered for maximum reliability, with a design that meets the stringent requirements of enterprise-grade environments. The processor supports 1P (1-processor) and 2P (2-processor) configurations, enabling data centers to scale their systems based on evolving workload demands. It also features an extended product lifecycle, ensuring that data centers can deploy the processor with confidence, knowing it will receive long-term support.

Workload Versatility: Optimized for AI, HPC, and Beyond

The AMD EPYC 9845 is a versatile processor optimized for a wide range of data center workloads, making it an ideal choice for enterprises with diverse computing needs. Its high core count, fast memory bandwidth, and PCIe 5.0 connectivity make it particularly well-suited for the following applications:

• Artificial Intelligence (AI) & Machine Learning (ML): The EPYC 9845’s 160 cores and high memory bandwidth are well-suited for training and inference of large AI models, including deep learning neural networks. Its PCIe 5.0 connectivity enables seamless integration with GPUs and other AI accelerators, further enhancing performance.
• High-Performance Computing (HPC): For workloads such as scientific simulations, weather forecasting, and computational fluid dynamics, the EPYC 9845’s parallel processing power and fast memory bandwidth reduce time-to-result, enabling researchers and engineers to accelerate innovation.
• Virtualization & Cloud Computing: With 320 threads and robust support for multiple VMs, the EPYC 9845 is an ideal solution for cloud service providers and enterprises seeking to maximize VM density and reduce server costs.
• Media Streaming & Content Delivery: The processor’s high core count and efficient performance make it well-suited for streaming high-definition video, live events, and on-demand content, ensuring consistent playback quality even during peak traffic periods.
• Business-Critical Applications: From enterprise resource planning (ERP) and customer relationship management (CRM) to database management and transaction processing, the EPYC 9845’s reliability and performance ensure uninterrupted operation of business-critical applications.

Compared to competing server processors, the EPYC 9845 offers a unique combination of core density, memory bandwidth, and connectivity that distinguishes it in the market. For example, when compared to the Intel Xeon E3-1230 v6 (a 4-core, 8-thread processor launched in 2017), the EPYC 9845 delivers 40x more cores, 40x more threads, a 3nm versus 14nm process advantage, and significantly faster memory and PCIe connectivity. This makes the EPYC 9845 a far more capable solution for modern data center workloads.

Global Availability & Pricing

The AMD EPYC 9845 Server Processor is available globally, including in key regions such as North America, EMEA, APJ, China, and Latin America, ensuring accessibility for enterprises and data centers worldwide. The processor is offered in a tray configuration with the product ID 100-000001458, with a 1KU (1000-unit) pricing of $11,411 USD, reflecting its high-performance capabilities and enterprise-grade features. While the initial investment may be higher than that of entry-level server processors, the EPYC 9845’s efficiency, scalability, and performance deliver long-term cost savings by reducing server footprint, power consumption, and operational expenses.

Why Choose the AMD EPYC™ 9845 for Your Data Center?

In a competitive market saturated with server processors, the AMD EPYC 9845 stands out for its unmatched combination of core density, performance, efficiency, and security. Whether upgrading an existing data center or building a new infrastructure, the EPYC 9845 offers the following key benefits:

• 160 cores and 320 threads for exceptional parallel processing power
• 3nm process technology for superior performance per watt and energy efficiency
• DDR5-6400 memory support with 12 channels and 614 GB/s bandwidth
• 128 PCIe 5.0 lanes for high-speed connectivity to peripherals and accelerators
• Advanced security features with AMD Infinity Guard to protect sensitive data
• Versatility to support AI, HPC, virtualization, and business-critical workloads
• Global availability and enterprise-grade reliability

For data centers seeking to remain at the forefront of technological innovation, the AMD EPYC 9845 is more than a processor—it is a strategic investment that delivers the performance, efficiency, and scalability required to support the next generation of data center workloads. With its cutting-edge technology and enterprise-grade features, the EPYC 9845 is positioned to become the preferred choice for enterprises and data center operators worldwide.

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