AMD EPYC 9115

The AMD EPYC 9115 is a 16-core, 32-thread server processor built on the Zen 5 architecture (codenamed Turin) and manufactured on TSMC's 4 nm process. It belongs to the EPYC 9005 series, targets the Server/Workstation market segment, and carries a launch MSRP of $726. With an average benchmark score of 69,887, it sits in the 96th percentile of all CPUs, placing it firmly in the upper tier of available processors for multi-threaded workloads.

Benchmark Performance

The EPYC 9115 delivers a Cinebench R23 multi-core score of 42,003 points, which represents a substantial capability for heavily threaded rendering and simulation tasks. This score is the highest among its nearest rivals listed, outpacing the Intel Core i7-14700K (which scores 70,074 average) by a margin that reflects the EPYC's server-oriented design. However, the average benchmark score comparison tells a more nuanced story: the EPYC 9115 trails the Intel Core i7-14700K by a slim 0.3% (70,074 vs 69,887), and similarly lags the Core i7-14700KF by 0.3% and the AMD Ryzen 9 9950X by 0.8%. The largest deficit is against the Intel Xeon Platinum 8270, where the EPYC trails by 1.6%.

These deltas are remarkably tight, indicating that the EPYC 9115 competes directly with high-end desktop and older server parts in aggregate performance, despite its different market positioning. In Cinebench R20, the multi-core score of 17,641 and single-core score of 2,490 demonstrate a balanced profile, while the R15 results (4,233 multi-core, 597 single-core) reinforce consistency across benchmark generations. The PassMark multi-thread score of 49,416 further corroborates strong parallel performance, and the data compression score of 604,120 suggests excellent throughput for archival and database workloads. The floating-point math score of 115,955 and integer math score of 183,390 indicate robust arithmetic capability, though the prime number finding score of 285 is notably lower, reflecting a design that prioritizes throughput over latency-sensitive integer operations.

Single-Thread vs Multi-Thread Behavior

The split between single-thread and multi-thread performance reveals the EPYC 9115's dual nature. Its Cinebench R23 single-core score of 5,929 is competitive with modern desktop parts, indicating that Zen 5's architectural improvements deliver strong per-thread efficiency. The PassMark single-thread score of 3,377 confirms this, and the R20 single-core score of 2,490 shows similar strength. This means the processor does not sacrifice responsiveness for multi-core muscle — a key advantage for mixed workloads that alternate between lightly threaded and heavily threaded phases.

The multi-thread results, however, are where the EPYC 9115 justifies its server classification. The R23 multi-core score of 42,003 is roughly seven times the single-core score, scaling well across the 16 cores and 32 threads. The PassMark multi-thread score of 49,416 versus the single-thread score of 3,377 yields a scaling factor of approximately 14.6, which is impressive for a dual-die design with a shared 64 MB L3 cache. The extended instructions score of 45,686 and random string sorting score of 71,473 further indicate that the processor handles diverse data manipulation tasks efficiently. For real-world workloads, this split means the EPYC 9115 excels in scenarios like video rendering, scientific computation, and virtualization, where all cores are saturated, while still providing snappy single-thread performance for compilation, scripting, and light interactive tasks.

How It Compares

Against the Intel Core i7-14700K, the EPYC 9115 trails by just 0.3% in average benchmark score (69,887 vs 70,074). This near-parity is striking given the EPYC's server pedigree and lower core count compared to the i7's hybrid architecture, but the EPYC's Zen 5 efficiency and high memory bandwidth (576.0 GB/s) help close the gap. The i7-14700K may edge ahead in bursty desktop workloads, but the EPYC offers a different trade-off with its twelve-channel DDR5 memory bus.

The Intel Core i7-14700KF presents an identical story, with a 0.3% lead over the EPYC (70,104 vs 69,887). Since the KF variant lacks integrated graphics, the comparison is purely computational, and the data shows the EPYC 9115 is essentially on par with this unlocked desktop part. This suggests that for multi-threaded server tasks, the EPYC's additional memory channels and ECC support provide value beyond raw benchmark averages.

The AMD Ryzen 9 9950X, a 16-core desktop flagship, leads the EPYC 9115 by 0.8% (70,420 vs 69,887). This is a closer margin than expected, as the 9950X typically operates at higher clock speeds, but the EPYC's base clock of 2.60 GHz and boost of 4.10 GHz are competitive. The EPYC's lower power envelope (125 W TDP) likely contributes to the small deficit, yet the performance gap is minimal, making the EPYC a viable alternative for users who need server features without sacrificing much throughput.

The Intel Xeon Platinum 8270, an older server processor, outperforms the EPYC 9115 by 1.6% (71,056 vs 69,887). This result is counterintuitive given the EPYC's newer architecture and higher memory bandwidth, but it likely reflects the Xeon's higher core count and mature software optimizations. However, the EPYC 9115 offers a more modern platform with PCIe Gen 5 and DDR5 support, which the data compression and encryption scores (604,120 and 33,914, respectively) suggest can translate to better real-world efficiency despite the aggregate benchmark deficit.

Who Should Consider It

For gaming workloads, the EPYC 9115 is not an obvious choice, but the data shows it is capable. The single-thread score of 3,377 in PassMark and 5,929 in Cinebench R23 indicate sufficient per-core performance for most game engines, though the server-oriented design with 128 PCIe lanes and twelve-channel memory is overkill for consumer gaming. Enthusiasts building a workstation that also games might find the balance acceptable, but dedicated gaming rigs would favor the rival Ryzen 9 9950X, which leads by 0.8% in average score.

For content creation, the EPYC 9115 shines. The Cinebench R23 multi-core score of 42,003 and PassMark multi-thread score of 49,416 make it well-suited for video editing, 3D rendering, and batch processing. The floating-point math score of 115,955 supports physics simulations and visual effects work, while the data compression score of 604,120 accelerates file archiving and media transcoding pipelines. Compared to the Core i7-14700K, the 0.3% deficit is negligible in practice, and the EPYC's ECC memory support adds reliability for long renders.

For office and enterprise workloads, the EPYC 9115 is a strong fit. The PassMark data encryption score of 33,914 indicates robust security processing, and the integer math score of 183,390 handles database transactions and spreadsheet calculations efficiently. The multi-thread score of 49,416 supports virtual machine consolidation, while the 96th percentile ranking ensures it outperforms the vast majority of CPUs. IT departments deploying this processor for application servers, file storage, or DevOps build machines would find the performance adequate, though the Xeon Platinum 8270's 1.6% lead suggests legacy software may favor older Intel platforms.

Power and Thermals

The EPYC 9115 has a TDP of 125 watts, which classifies it as a moderate-power server processor. This is a relatively low figure for a 16-core, 32-thread part, especially one with a 4.10 GHz boost clock, indicating that the 4 nm process and Zen 5 architecture deliver strong efficiency. The thermal implications are that a capable air cooler or a modest liquid cooler should suffice for most server chassis, though the dual-die design (2x 70.6 mm²) means heat is distributed across two chiplets. The 16,630 million transistor count and shared 64 MB L3 cache add to the thermal density, but the 125 W envelope keeps cooling requirements manageable in standard 1U or 2U servers.

The absence of a vCache 3D variant means the EPYC 9115 does not rely on stacked cache to manage thermals, relying instead on conventional L3. For workstation users, this TDP allows for quieter cooling solutions compared to higher-power rivals, which is advantageous in office environments. The data does not provide direct thermal measurements, but the power class suggests that sustained all-core loads will require adequate airflow, while single-threaded tasks will run cool and quiet.

Platform and Compatibility

The EPYC 9115 uses AMD Socket SP5, which is the platform designed for the EPYC 9005 series. This socket supports DDR5 memory across a twelve-channel memory bus, yielding a peak memory bandwidth of 576.0 GB/s — a figure that significantly outperforms dual-channel desktop platforms and supports memory-intensive applications like in-memory databases and large-scale virtualization. ECC memory is supported, which is critical for data integrity in server environments, and the processor integrates no graphics, requiring a discrete GPU for display output.

PCIe Gen 5 is supported with 128 lanes (CPU only), providing ample connectivity for high-speed NVMe storage, GPU accelerators, and network interfaces. This is a key differentiator from older server platforms like the Intel Xeon Platinum 8270, which lacks PCIe Gen 5, and it enables future-proofing for next-generation peripherals. The upgrade path is clear: the EPYC 9115 is an active production part, and its socket compatibility with the broader EPYC 9005 series means users can potentially migrate to higher-core-count parts without changing motherboards. The processor is not multiplier unlocked, so overclocking is not an option, but server platforms rarely require it. With a release date of October 2024, the platform is current, and the part number (100-000001552) indicates a standardized SKU for system integrators. The L1 cache is 80 KB per core and L2 is 1 MB per core, with 64 MB of shared L3, providing a solid cache hierarchy for the 16 cores.