Intel Atom C5325

# Intel Atom C5325: Benchmark Analysis

The Intel Atom C5325 is an 8-core, 8-thread server and workstation processor from Intel's Parker Ridge family, built on the Tremont architecture and manufactured on a 10 nm process. Released on June 5, 2022, this chip occupies the 50th percentile among all CPUs in the database, indicating it sits squarely in the middle of the performance distribution. With a base clock of 2.40 GHz and no boost clock listed, the C5325 is a power-efficient, single-frequency design aimed at specific embedded and networking workloads rather than raw compute throughput.

Benchmark Performance

The C5325's benchmark data is unusual: the average benchmark score is listed as 0, and the nearestRivals array is empty. This means the database currently holds no direct comparative scores for this processor against peer chips. The 50th percentile ranking, however, provides context — half of all CPUs in the database perform at or below this level, while half perform above it. This places the C5325 in the middle of the overall spectrum, which is notable given its modest 8-core, 8-thread configuration and 41 W TDP.

Without direct rival scores or deltaPct values, the analysis must rely on the architectural characteristics and market positioning. The lack of boost clock is a significant performance indicator: this processor does not dynamically scale its frequency upward, meaning sustained workloads run at a fixed 2.40 GHz. For multi-threaded tasks that can utilize all 8 cores simultaneously, the processor delivers consistent, predictable throughput. For single-threaded workloads, the absence of a boost clock means it cannot temporarily boost performance, which will cap its responsiveness in latency-sensitive applications.

The empty benchmarks array suggests either this specific SKU has not been widely tested in the database, or its niche deployment (primarily in networking appliances and edge servers) results in fewer standardized benchmark submissions. The 50th percentile ranking, while not granular, at least confirms it is not an outlier on the low end. In practical terms, users should expect performance roughly comparable to other mid-range, low-power server processors of its generation, but the data does not support more specific numerical claims.

Single-Thread vs Multi-Thread Behavior

The C5325's thread configuration — 8 cores, 8 threads — means there is no simultaneous multithreading (SMT). Each core handles exactly one thread, which simplifies scheduling and reduces overhead but limits the processor's ability to extract extra work from a single physical core. For applications that rely on high single-thread performance, this is a notable constraint: with a fixed 2.40 GHz and no boost, single-threaded performance is determined entirely by the architectural efficiency of the Tremont cores.

Tremont is Intel's low-power microarchitecture, designed primarily for efficiency rather than peak performance. In the C5325, this means each core delivers modest per-thread IPC (instructions per clock) compared to larger Intel cores like those in the Core or Xeon lines. Benchmark results typically show Tremont-based parts lagging significantly behind in single-threaded tasks. For multi-threaded workloads, the 8 physical cores provide linear scaling without SMT interference, but each core's individual throughput remains the limiting factor.

Real-world implications: workloads that are heavily single-threaded — such as legacy database queries, certain network control-plane functions, or light scripting — will feel constrained. Conversely, workloads that are parallelizable and cache-friendly — such as packet processing, network forwarding, or simple data aggregation — can leverage all 8 cores effectively. The L2 cache of 4.5 MB per module (with two cores per module in Tremont designs) helps mitigate some latency in multi-threaded scenarios, but the total cache is modest compared to server-class Xeons.

How It Compares

Given the empty nearestRivals array, there are no direct comparative scores to cite. This is itself a finding: the C5325 occupies a niche where standardized competitive benchmarks are either not published or not submitted to the database. However, based on its specifications, we can reason about its positioning qualitatively.

Against typical low-power Xeon processors (e.g., Xeon D series), the C5325 would likely trade single-thread advantage for lower power consumption and smaller physical footprint. The 41 W TDP is indicative of a thermal design that allows passive cooling in compact enclosures — a trait more common in Atom-class parts than in Xeons. Against other Atom processors (e.g., the C5000 series), the C5325 with its 8 cores sits near the higher end of that family, offering more parallelism than 4-core variants but with the same base-clock-only behavior.

The 50th percentile ranking suggests that, across all CPUs, the C5325 is not a performance outlier. In a server context, it would be considered an entry-level or specialized processor, not a primary compute node. For comparison, a modern 16-core Xeon would likely rank well above the 50th percentile, while a 2-core low-power Atom would rank below. The C5325's position in the middle reflects its balance of core count, clock speed, and efficiency.

FAQ

Q: Does the Intel Atom C5325 support ECC memory?

A: Yes, the C5325 supports ECC memory, which is critical for server and workstation reliability requirements.

Q: What is the socket type for the C5325?

A: The C5325 uses the Intel BGA 2106 socket, which means it is soldered to the motherboard and not upgradeable.

Q: How many PCIe lanes does the C5325 provide?

A: The processor provides 8 PCIe Gen 3 lanes from the CPU itself, which is limited compared to server Xeons but sufficient for basic expansion.

Q: Does the C5325 have integrated graphics?

A: No, the C5325 has no integrated graphics (N/A), so a discrete GPU or a BMC with graphics is required for display output.

Q: What is the memory bandwidth of the C5325?

A: The C5325 supports dual-channel DDR4 memory with a maximum bandwidth of 46.9 GB/s.

Q: When was the C5325 released?

A: The release date is June 5, 2022, and it remains in active production.

Power and Thermals

The C5325 has a TDP of 41 W, which classifies it as a low-power processor. This TDP figure is modest by server standards — typical Xeon processors range from 80 W to 200+ W — and is comparable to many laptop-class parts. The 41 W TDP means that a capable air cooler with a small heatsink and low-speed fan is sufficient for most deployments. In fact, given the BGA 2106 socket and the server/workstation market segment, many systems will use passive heatsinks relying on chassis airflow to dissipate heat.

The absence of a boost clock also simplifies thermal management: since the processor does not transiently increase power draw, cooling requirements are consistent under sustained load. This is beneficial for dense enclosures where thermal headroom is limited. The 10 nm process node helps keep power density manageable, but the Tremont architecture is inherently efficiency-focused, so the 41 W TDP is not surprising. For comparison, a higher-clocked 8-core Xeon would typically require 65–95 W, making the C5325 significantly more power-lean.

Thermal implications for system design: the 41 W TDP allows for fanless operation in well-ventilated chassis, which is ideal for networking appliances, industrial PCs, and edge servers. The production status is "Active," indicating ongoing availability. There is no multiplier unlock, so overclocking is not possible, and the fixed base clock means power draw is constant regardless of workload intensity (up to the TDP limit). This predictability is advantageous for power budgeting in multi-node deployments.

Platform and Compatibility

The C5325 uses the Intel BGA 2106 socket, which is a ball-grid-array (soldered) design. This means the processor is permanently attached to the motherboard, eliminating any possibility of CPU upgrades or replacements. System builders must choose the exact SKU they need at purchase time. The memory support is DDR4 in a dual-channel configuration, with a maximum bandwidth of 46.9 GB/s. ECC memory is supported, which is essential for error-correcting workloads in server environments.

PCIe connectivity is provided via Gen 3 with 8 lanes from the CPU only. This is a limited PCIe allocation compared to larger server processors — a Xeon might offer 40–64 lanes — but it is sufficient for a single high-bandwidth device (e.g., a network interface card with multiple 10 GbE ports) or a few lower-bandwidth peripherals. There is no integrated graphics, so any display output requires a discrete GPU or a remote management controller with its own video capabilities.

The platform is designed for the server/workstation market segment, and the lack of overclocking support (multiplier unlocked: false) reinforces this positioning. The part number is SRL3W, which can be used for identification in OEM systems. The memory bus is dual-channel, meaning two DIMM slots (or two channels across more slots) are used to achieve the 46.9 GB/s bandwidth. Upgrade path is effectively non-existent due to BGA soldering, so the platform is best viewed as a fixed-function appliance rather than an expandable server.

Who Should Consider It

The C5325 is suited for workloads that prioritize low power consumption and predictable performance over raw speed. In networking, the 8 cores can handle packet forwarding, firewall rules, and VPN termination at moderate throughput. The 41 W TDP allows deployment in fanless or low-noise environments, which is a common requirement for home lab routers or edge gateways. The ECC memory support adds reliability for data-integrity-sensitive tasks like network-attached storage (NAS) or lightweight database caching.

For content creation, the C5325 is not recommended. Single-threaded performance — capped at 2.40 GHz with no boost — is insufficient for video encoding, 3D rendering, or photo editing, where high clock speeds and IPC are critical. Multi-threaded creation workloads (e.g., batch image processing) would use all 8 cores, but each core's modest throughput means overall render times would be significantly longer than a comparable desktop CPU. The absence of integrated graphics also requires a discrete GPU for any display output, adding cost and power.

For office productivity, the C5325 is overkill and underpowered in the wrong ways. Its low power draw is attractive for always-on thin clients, but the lack of boost clock and modest per-core performance would feel sluggish for interactive tasks like spreadsheet manipulation or web browsing. The processor is better suited for headless server roles: virtualization hosts running several lightweight VMs, container hosts for microservices, or dedicated network appliances. The dual-channel DDR4 with ECC is a strong fit for these reliability-oriented, I/O-light workloads.

Architecture and Design

The C5325 is built on the Tremont microarchitecture, which is Intel's low-power core design. Tremont is a significant departure from the larger Sunny Cove or Golden Cove cores used in mainstream processors; it is optimized for power efficiency and compact die size rather than peak performance. The codename for this platform is Parker Ridge, and the generation is listed as "Atom (Tremont)." The process node is 10 nm, manufactured by Intel's own foundry.

The core layout consists of 8 cores arranged in modules, with each module sharing an L2 cache of 4.5 MB. This is a key architectural detail: in Tremont, two cores share a 4.5 MB L2 slice, which means the 8-core C5325 has four modules, each with its own 4.5 MB L2, for a total of 18 MB of L2 cache (though not aggregated as a single pool). The L1 cache is 64 KB per core, which is split between instruction and data (typically 32 KB each in Tremont designs). There is no L3 cache listed, which is consistent with Atom processors that rely on L2 as the last-level cache to reduce latency and power.

The memory controller supports DDR4 in dual-channel mode, with a peak bandwidth of 46.9 GB/s. ECC is supported, which requires a compatible motherboard and registered or unbuffered ECC DIMMs. The PCIe controller is Gen 3 with 8 lanes, a deliberate choice to keep power and pin counts low. The lack of a boost clock is a design decision: Tremont cores in this SKU are configured for a fixed frequency, likely to ensure consistent power draw in thermally constrained environments. The 10 nm process (Intel's 10 nm SuperFin, though the fact pack does not specify the variant) enables this efficiency, though it is not as advanced as Intel's later 7 nm or 4 nm nodes.

The absence of integrated graphics is notable for a 10 nm part, but it aligns with the server/workstation target where discrete GPUs or BMCs are standard. The overall design philosophy is clear: maximize core count within a 41 W envelope, provide essential server features (ECC, DDR4), and sacrifice clock speed, cache depth, and PCIe bandwidth to achieve these goals. This makes the C5325 a purpose-built component rather than a general-purpose CPU, and its benchmark profile — mid-pack at the 50th percentile — reflects that specialization.