Intel Xeon 6315P

Name: Intel Xeon 6315P
Brand: Intel
SKU: 2120

Manufacturer: Intel

The Intel Xeon 6315P is a quad-core entry in the enterprise CPU segment, designed around a 10nm semiconductor process with a thermal envelope of just 55W. It operates at a base clock of 2.8 GHz across four threads, climbing to 5.2 GHz under Turbo Boost 2.0 conditions, making it a measured option for workloads that benefit from frequency headroom without high sustained power draw.

On the memory side, the Xeon 6315P supports DDR5 at up to 4800 MHz across two channels, with a maximum capacity of 128 GB and a peak bandwidth of 76.8 GB/s — complemented by ECC support for added data integrity in server environments. The cache hierarchy consists of 320 KB of L1, 8 MB of L2 at 2 MB per core, and 12 MB of L3 at 3 MB per core. Instruction set coverage includes AVX2, FMA3, AES, and SSE 4.2, among others. In benchmark testing, the processor scores 10,789 in PassMark multi-threaded and 3,825 in the single-threaded result.

Pros

ECC memory support adds a layer of data integrity protection, making it suitable for environments where memory error correction is essential
DDR5 support with a maximum speed of 4800 MHz and 76.8 GB/s peak bandwidth provides a modern and capable memory subsystem
PCIe 5.0 compatibility enables high-bandwidth connectivity for supported storage and expansion hardware
A broad instruction set including AVX2, FMA3, and AES covers vectorized computation and hardware-accelerated encryption natively
The 55W TDP keeps power consumption contained relative to the four-core configuration, which can help with thermal management in dense server deployments
NX bit support provides hardware-level execution protection against certain memory-based security exploits

Cons

With only four cores and four threads and no multithreading support, the processor offers limited parallelism for workloads that scale across many concurrent threads
The absence of integrated graphics means a discrete graphics solution is always required, even for basic display output
A maximum memory capacity of 128 GB across just two channels may be restrictive for memory-intensive enterprise workloads that benefit from higher capacity or more channels
The clock multiplier is locked, removing any possibility of frequency adjustment through multiplier tuning
A single-threaded PassMark score of 3,825 indicates moderate per-core performance, which may be a limiting factor for latency-sensitive or single-threaded applications

Who is this for?

The Intel Xeon 6315P is well matched to server and workstation environments that prioritize power efficiency over core count, where its 55W TDP and DDR5 memory subsystem with ECC support make it a reliable option for tasks demanding data integrity. Its PCIe 5.0 interface and broad instruction set coverage — including AES and AVX2 — make it a reasonable fit for light to moderate enterprise workloads such as encrypted data processing, edge computing nodes, or virtualization hosts that do not require extreme thread counts. Organizations deploying compact or thermally constrained server configurations may also find its low power envelope practical for density-focused deployments.

Who is this NOT for?

This processor is not well suited to heavily parallelized workloads that scale across many simultaneous threads, as its four-core, four-thread design with no multithreading support offers limited concurrency. Environments relying on large in-memory datasets or multi-channel memory configurations may find the two-channel memory architecture and 128 GB capacity ceiling restrictive. It is equally unsuitable for users who require integrated display output, since no integrated graphics are included, and for those with latency-sensitive or single-threaded applications that demand higher per-core throughput than its PassMark single-thread score of 3,825 can consistently deliver.

General info:

Thermal Design Power (TDP)	55W
semiconductor size	10 nm
PCI Express (PCIe) version	5
Supports 64-bit	✓
CPU temperature	100 °C
Has integrated graphics	✕

The Intel Xeon 6315P carries a Thermal Design Power (TDP) of 55W, keeping its power footprint relatively contained for a server-class processor, with a maximum operating temperature of 100°C. It is built on a 10nm semiconductor process and supports the PCIe 5.0 interface, enabling high-bandwidth connectivity for compatible expansion cards and storage devices. The chip fully supports 64-bit computing, while integrated graphics are not included, meaning a discrete graphics solution is required for display output.

Performance:

CPU speed	4 x 2.8 GHz
CPU threads	4 threads
turbo clock speed	5.2GHz
L3 cache	12 MB
L1 cache	320 KB
L2 cache	8 MB
L2 core	2 MB/core
clock multiplier	28
Has an unlocked multiplier	✕
L3 core	3 MB/core
Turbo Boost version	2

The Intel Xeon 6315P runs four cores at a base speed of 2.8 GHz across four threads, with Turbo Boost 2.0 capable of pushing the clock up to 5.2 GHz on demand. The clock multiplier is set at 28 and is locked, meaning frequency adjustments through multiplier overclocking are not supported. Cache capacity is distributed across three levels: 320 KB of L1, 8 MB of L2 at 2 MB per core, and 12 MB of L3 at 3 MB per core, providing a tiered memory structure to help sustain data throughput close to the processor cores.

Memory:

Supports ECC memory	✓
maximum memory bandwidth	76.8 GB/s
DDR memory version	5
RAM speed (max)	4800 MHz
maximum memory amount	128GB
memory channels	2
bus transfer rate	16 GT/s

The Intel Xeon 6315P supports DDR5 memory at speeds of up to 4800 MHz across two channels, with a maximum supported capacity of 128 GB. Peak memory bandwidth reaches 76.8 GB/s, and the bus transfer rate is rated at 16 GT/s. ECC memory is supported, which allows the processor to detect and correct certain types of memory errors — a standard requirement in server and workstation environments where data reliability is a priority.

Features:

uses multithreading	✕
instruction sets	MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit	✓

The Intel Xeon 6315P does not support multithreading, meaning each physical core handles a single thread at a time. It includes the NX bit for hardware-level memory protection against certain classes of malicious code execution. On the instruction set side, the processor supports a broad range of extensions including AVX, AVX2, FMA3, AES, F16C, MMX, SSE 4.1, and SSE 4.2, covering vectorized math operations, hardware-accelerated encryption, and various media and floating-point processing capabilities.

Benchmarks:

PassMark result	10789
PassMark result (single)	3825

In PassMark testing, the Intel Xeon 6315P achieves a multi-threaded score of 10,789, reflecting its overall throughput across all active cores. Its single-threaded PassMark result stands at 3,825, which gives an indication of per-core processing speed for workloads that rely on sequential execution rather than parallelism.

Final Verdict

The Intel Xeon 6315P is a focused enterprise CPU that trades raw thread count for a disciplined balance of power efficiency and modern platform support. Its DDR5 memory subsystem with ECC capability and PCIe 5.0 interface give it a technically current foundation well suited to compact server deployments, edge nodes, and lightly threaded workloads where data reliability and thermal containment matter more than peak parallelism. Organizations that need a low-footprint, server-grade processor with a solid instruction set and stable memory characteristics will find it appropriately specified for its role — though those with demanding concurrent or memory-intensive workloads should weigh its four-core, two-channel design carefully before committing.