The Intel Xeon D-1813NT operates within a 42W Thermal Design Power (TDP), one of the more constrained figures in the enterprise server space, making it well-suited for passively cooled or thermally limited embedded deployments. It supports the PCIe 4.0 interface for connectivity with compatible expansion devices and operates fully in 64-bit mode. Integrated graphics are not included on this processor, which aligns with its intended use in headless server and appliance environments where display output is typically managed remotely or not required at all.
The processor is built around 4 cores running at a base frequency of 2.2 GHz each, yielding 8 threads in total through multithreading to handle concurrent tasks within its power-efficient profile. Turbo Boost 2.0 can lift the clock speed to 2.4 GHz, though the turbo range is narrow, reflecting the tight thermal constraints the chip is designed to operate within. The clock multiplier sits at 22 and is locked, leaving no room for manual frequency adjustment. On the cache side, the processor carries 10 MB of L3 cache distributed at 2.5 MB per core — a notably generous per-core allocation relative to its total core count, which helps reduce memory access latency for the types of workloads this chip typically handles.
The processor supports DDR4 memory across two channels, with a maximum operating speed of 2400 MHz — a figure consistent with its low-power, embedded server design intent. ECC memory is fully supported, enabling automatic detection and correction of single-bit errors to maintain data integrity during extended continuous operation, which is a standard expectation in enterprise and appliance deployments. Total memory capacity reaches up to 256GB, providing reasonable headroom for the workloads this class of processor is typically assigned to handle.
Multithreading is supported, allowing each physical core to handle two threads simultaneously and improving throughput for parallelizable tasks within this processor's compact core configuration. The instruction set is comprehensive for its class, spanning AVX and AVX2 for vectorized computation, FMA3 and F16C for floating-point acceleration, AES for hardware-assisted encryption, SSE 4.1 and SSE 4.2 for extended processing capabilities, and the legacy MMX extension. The NX bit is also present, providing hardware-enforced memory protection by preventing code execution in designated memory regions — a foundational security feature for embedded server and appliance environments.
In PassMark testing, the processor records an overall score of 7,732, capturing its aggregate multi-threaded throughput across all active cores and threads. The single-threaded PassMark result of 1,676 reflects per-core performance, which is a useful indicator for workloads that cannot distribute execution across multiple threads and instead rely on the processing speed of a single core at a time.
