AMD EPYC 7401

The AMD EPYC 7401 is a 24-core, 48-thread server processor built on the Zen architecture, code-named Naples, and released on 2017-06-28. It sits in the EPYC 7001 series, targeting the Server/Workstation market segment, and the benchmark data shows it holds a 50th percentile position among all CPUs, indicating a mid-pack standing in the broader performance landscape.

Benchmark Performance

The benchmark results for the AMD EPYC 7401 are sparse, with no individual scores or rival comparisons provided in the data. The only quantitative performance indicator available is the percentileVsAllCpus value of 50, which places this processor exactly at the median of all CPUs tracked. This is a significant finding, as it suggests that while the EPYC 7401 is not a top-tier performer in raw benchmark terms, it is also far from being a low-end option. The average benchmark score is listed as 0, which implies that either no benchmark runs have been aggregated for this specific part or that the data collection is incomplete. With no nearestRivals data populated, the analysis must rely on the architectural characteristics to infer performance expectations. The 24 cores and 48 threads, combined with a base clock of 2000.00 MHz and a boost clock of 3.00 GHz, indicate that this processor is designed for throughput-oriented workloads rather than single-threaded speed. The 64 MB of shared L3 cache is substantial and should provide strong cache residency for large datasets, which is typical for server-class parts. Without explicit benchmark scores, the percentile of 50 serves as the only direct comparative metric, and it suggests that in a mixed workload environment, the EPYC 7401 would perform at a level equal to the median CPU, but the core count and cache size imply that its real-world performance in multi-threaded tasks would likely be far above that median.

Who Should Consider It

Based on the available data, the AMD EPYC 7401 is clearly oriented toward server and workstation use cases that benefit from high core counts and large shared caches. The 24-core, 48-thread configuration with a 64 MB L3 cache makes it a suitable candidate for virtualization environments where multiple virtual machines need concurrent CPU resources. Database workloads, particularly those with large working sets that fit into the 64 MB L3 cache, would see performance benefits from reduced memory latency. The eight-channel memory bus with 170.6 GB/s of bandwidth is a strong indicator that memory-intensive applications, such as in-memory analytics or high-performance computing simulations, are within the target scope. For content creation tasks like 3D rendering or video encoding, the multi-threaded nature of these workloads means the EPYC 7401 would likely excel, given that the core count is high and the boost clock of 3.00 GHz is respectable for a server part. However, for gaming or lightly threaded office applications, the data suggests this processor is not optimized; the base clock of 2000.00 MHz is relatively low, and the single-thread performance is not a highlighted strength of the Zen architecture in this generation. Benchmark results, reflected in the 50th percentile, indicate that typical consumer workloads would not leverage the full potential of this chip. Therefore, the EPYC 7401 is best suited for users running sustained, parallel workloads that scale with core count, rather than those needing high frequency for latency-sensitive tasks.

Power and Thermals

The thermal design power (TDP) for the AMD EPYC 7401 is 170 watts, which is a significant figure for a server processor. This TDP class indicates that the chip is designed for dual-socket or single-socket server platforms with robust cooling solutions. In a server chassis, this typically implies the use of active heat sinks with high-static-pressure fans or liquid cooling in dense environments. The 14 nm process node from GlobalFoundries, with 4,800 million transistors on a 213 mm² die, suggests that the power density is moderate, and the 170 W TDP is a reasonable envelope for the 24-core configuration. For workstation users, this TDP means that a capable air cooler with a large heatsink and multiple heat pipes would be necessary, and case airflow must be sufficient to dissipate the heat. The boost clock of 3.00 GHz, when sustained across all cores, would push the processor toward its thermal limits, so the cooling solution must be able to handle prolonged all-core loads. The absence of an integrated graphics unit means that no power is diverted to an iGPU, allowing the full TDP budget to be dedicated to CPU cores and cache. In a data center context, the 170 W TDP is within the range of standard 1U and 2U server cooling designs, but it does require attention to ambient temperature and airflow paths. The data does not provide specific thermal throttling behavior, but the TDP class implies that sustained operation at full load will generate substantial heat, and the platform must be designed accordingly.

Platform and Compatibility

The AMD EPYC 7401 uses the AMD Socket SP3, which is the server-grade socket for the Naples generation. The platform is built around the Zen architecture, and the chip is part of the EPYC 7001 series, which is the first generation of EPYC processors. Memory support is DDR4 with an eight-channel bus, providing a maximum memory bandwidth of 170.6 GB/s, and ECC memory is supported, which is critical for server reliability. The PCIe interface is Gen 3, though the data does not specify the number of lanes; however, for a server part of this class, it is typical to have a high lane count for expansion. The production status is listed as Active, meaning the processor is still in production and available for purchase. The multiplier is unlocked, which is unusual for a server processor, suggesting that overclocking is possible, though in a server environment this is rarely a primary use case. The upgrade path is defined by the Socket SP3 platform, which supports the EPYC 7001 series; the data does not indicate compatibility with later EPYC generations, so upgrades would be limited to within the same series. The lack of integrated graphics means a discrete GPU is required for display output, but for server workloads this is typically not a concern. The eight-channel memory architecture requires that all memory channels be populated to achieve the full 170.6 GB/s bandwidth, and the DDR4 support implies a broad range of available memory modules. The process node of 14 nm and the die size of 213 mm² are relevant for understanding the physical package, but they do not directly affect compatibility.

FAQ

Q: How many cores and threads does the AMD EPYC 7401 have?

A: The AMD EPYC 7401 has 24 cores and 48 threads.

Q: What is the thermal design power (TDP) of this processor?

A: The TDP is 170 watts.

Q: What memory type and bus width does it support?

A: It supports DDR4 memory with an eight-channel bus, providing 170.6 GB/s of memory bandwidth.

Q: Does the processor support ECC memory?

A: Yes, ECC memory is supported.

Q: What socket does the AMD EPYC 7401 use?

A: It uses AMD Socket SP3.

Q: What is the L3 cache size?

A: The L3 cache is 64 MB shared.

Q: Is the processor still in production?

A: Yes, the production status is listed as Active.

Q: What is the base and boost clock speed?

A: The base clock is 2000.00 MHz and the boost clock is 3.00 GHz.

Single-Thread vs Multi-Thread Behavior

The AMD EPYC 7401 presents a clear divergence between single-thread and multi-thread performance, as inferred from its clock speeds and core count. The base clock of 2000.00 MHz is modest, and even the boost clock of 3.00 GHz is not exceptional for single-threaded workloads. This indicates that the processor is not optimized for tasks that rely on high per-core frequency, such as legacy software, certain gaming engines, or lightly threaded applications. In contrast, the 24 cores and 48 threads, combined with the 64 MB L3 cache, make it a formidable multi-threaded performer. The data suggests that the EPYC 7401 would significantly outperform lower-core-count processors in parallel workloads, but the lack of benchmark scores means the exact magnitude cannot be quantified. The 50th percentile ranking among all CPUs likely reflects a blend of single-thread and multi-thread tests, but given the core count, the multi-thread scores are probably well above the 50th percentile, while single-thread scores are likely below it. The architecture's design philosophy for Naples is to maximize throughput for server workloads, where many concurrent threads are more valuable than a few fast ones. The eight-channel memory bus and high memory bandwidth of 170.6 GB/s further support this, as multi-threaded tasks often require high memory throughput to feed all cores. In real-world terms, the EPYC 7401 would be an excellent choice for compiling large codebases, running scientific simulations, or processing big data, but it would be a poor fit for tasks like web browsing or office productivity where single-thread performance dominates. The unlocked multiplier is an interesting note, as it could allow users to raise the boost clock, but the data does not indicate the headroom available, and doing so would likely increase power consumption beyond the 170 W TDP.

How It Compares

The nearestRivals field for the AMD EPYC 7401 is empty, meaning there is no direct comparative data available in the fact pack. This absence of rival information limits the analysis to the processor's own specifications and its percentile ranking. Without specific rival names, scores, or deltaPct values, it is impossible to state exact performance differences. However, the 50th percentile vs all CPUs provides a general reference point: this processor sits in the middle of the performance distribution across all tracked CPUs. In the context of its own generation, the EPYC 7001 series, the 7401 is positioned as a mid-range offering with 24 cores, while the series includes higher-core-count parts that would likely score higher in multi-threaded benchmarks. The lack of rivals also means that no comparison can be made against Intel server parts or other AMD EPYC models in terms of specific percentages. The data does show that the EPYC 7401 has a 64 MB L3 cache and 170.6 GB/s memory bandwidth, which are competitive features for its era, but without rival data, the relative standing cannot be quantified. The production status of Active and release date of 2017-06-28 indicate it is an older part, so newer processors from the same manufacturer would likely outperform it, but again, no numbers support this. The only concrete comparative metric is the percentile of 50, which serves as a baseline for understanding that the EPYC 7401 is not an outlier in either direction. In the absence of rival data, the conclusion is that the EPYC 7401 is a solid, mid-performing server chip whose value lies in its core count and memory subsystem, rather than in benchmark dominance.