Intel Xeon L5506

Intel Xeon L5506 is a 4-core, 4-thread server processor from the Nehalem architecture, built on Intel’s 45 nm process with 731 million transistors on a 263 mm² die. It runs at a base clock of 2.13 GHz with no boost clock, draws a 60 W TDP, and targets the Server/Workstation market segment. The processor is end-of-life, released on 2009-03-29, and sits at the 50th percentile among all CPUs in the database, indicating a mid-pack standing for its era.

Benchmark Performance

The Intel Xeon L5506’s benchmark data shows no individual scores, and its average benchmark score is listed as 0. Its percentile ranking of 50 places it exactly at the median of all CPUs tracked, meaning half of all processors in the database perform better and half perform worse. This percentile is a broad indicator; without specific rival scores or delta percentages, the practical takeaway is that the L5506 is a middling performer, not a standout in any direction.

Because the nearestRivals array is empty, there are no direct comparison deltas to cite. The data simply shows that this chip does not have recorded benchmarks to define its exact standing against contemporaries. In the context of its release generation, a 50th percentile ranking suggests it was neither a flagship nor a low-end part; it occupied a comfortable middle ground for entry-level server tasks. For a builder evaluating it today, the lack of benchmark scores means its real-world performance must be inferred from its architecture and clock speed rather than from direct measurements. The 2.13 GHz base clock, with no turbo or boost capability, caps its peak throughput, and the 4-core/4-thread configuration limits parallel work compared to higher-core Xeons of the same socket.

Power and Thermals

The L5506 has a TDP of 60 W, which is notably low for a server processor of its generation. This TDP class places it in the efficiency-oriented segment of the Nehalem lineup, where lower power draw was a priority over raw performance. A 60 W TDP implies that a modest air cooler is sufficient—something like a stock Intel cooler or a basic third-party tower would handle the heat output without strain.

For a server or workstation chassis, this low TDP also means reduced cooling requirements for the system as a whole, potentially allowing for quieter fans or denser server configurations. The 45 nm process node, while older, contributes to this efficiency; the 731 million transistors are packed into a 263 mm² die, and the power envelope remains modest. In practical terms, the data indicates that thermal management is not a concern for this chip, even in tightly packed enclosures. Builders can prioritize other components, such as storage or memory, without worrying about excessive heat generation from the CPU. The absence of a boost clock further stabilizes power draw, as the processor never spikes to higher clocks and thus maintains a consistent thermal profile under load.

Single-Thread vs Multi-Thread Behavior

The L5506 has 4 cores and 4 threads, meaning no hyper-threading is present. Each core handles exactly one thread, which simplifies scheduling but limits parallel efficiency. The base clock of 2.13 GHz is modest, and without a boost clock, single-thread performance is fixed at that speed.

For single-threaded workloads, the data suggests that the L5506 will lag behind processors with higher base clocks or boost capabilities. A 2.13 GHz Nehalem core, while architecturally sound, is not competitive with later-generation chips or even higher-clocked same-generation parts. Single-thread tasks that are latency-sensitive—such as certain database queries or legacy applications—will see only moderate performance.

Multi-threaded behavior is similarly constrained. With 4 threads, the chip can handle four simultaneous tasks or one task that scales to four threads, but it will not shine in heavily threaded workloads like video rendering or scientific simulations that favor 8, 12, or 16 threads. The 4 MB shared L3 cache helps somewhat, as all cores can access the same pool, but the lack of hyper-threading means the processor cannot extract additional parallelism from a single core. The split between single-thread and multi-thread is balanced in the sense that both are limited by the same clock speed and core count; neither excels. Real-world use cases that benefit from this chip are those with light to moderate threading, where the 60 W TDP and 4 cores provide adequate throughput without excess power consumption.

Who Should Consider It

Given its benchmark percentile of 50 and its specifications, the L5506 is suited for specific, low-intensity server roles. For basic file serving, lightweight web hosting, or as a dedicated controller for network services, the 4 cores and 4 threads are adequate, and the 60 W TDP makes it an energy-conscious choice for always-on systems.

For gaming, the data does not support this processor. Gaming workloads typically favor higher single-thread performance, and the 2.13 GHz base clock with no boost will bottleneck modern titles. The lack of integrated graphics also means a discrete GPU is mandatory, but even then, the CPU would likely hold back the GPU in CPU-bound scenarios.

For content creation, the picture is mixed. Simple tasks like photo editing or light video transcoding on a single thread might be passable, but multi-threaded rendering or 3D modeling would suffer due to the 4-thread limit. The processor is better suited to office or database workloads that are not compute-intensive—for example, running a small business server, handling email, or hosting a lightweight virtual machine.

The 50th percentile ranking reinforces this niche positioning; it is not a performance part, but it is not a complete slouch either. Builders with legacy Socket 1366 motherboards and DDR3 memory could repurpose this chip for a low-power home server or a testing rig. However, for any modern workload that demands speed or parallel processing, the data indicates that this is not the right choice.

FAQ

Q: What is the core and thread count of the Intel Xeon L5506?

A: The L5506 has 4 cores and 4 threads, with no hyper-threading support.

Q: Does the L5506 support boost clock speeds?

A: No, the base clock is 2.13 GHz, and no boost clock is listed.

Q: What is the TDP of this processor, and what cooling does it imply?

A: The TDP is 60 W, which allows for a basic air cooler; no high-end cooling solution is required.

Q: Is the L5506 compatible with ECC memory?

A: Yes, ECC memory is supported, and the processor uses triple-channel DDR3.

Q: What is the production status of the L5506?

A: The processor is end-of-life, meaning it is no longer manufactured.

Q: How does the L5506 rank among all CPUs in the database?

A: It sits at the 50th percentile, meaning it performs better than half of all CPUs and worse than the other half.

Platform and Compatibility

The Intel Xeon L5506 uses the Intel Socket 1366 interface, which was common for high-end desktops and servers in the Nehalem era. The architecture is Nehalem, with the codename Gainestown, and it belongs to the Xeon (Gainestown) generation. The socket supports triple-channel DDR3 memory, and ECC memory is a supported feature, making it suitable for error-sensitive server workloads.

The processor has PCIe Gen 2 support, which is an older standard but sufficient for many server peripherals and expansion cards. The memory bus is triple-channel, meaning three memory channels operate in parallel, which can improve bandwidth versus dual-channel designs. The cache hierarchy includes 64 KB of L1 per core, 256 KB of L2 per core, and 4 MB of shared L3 cache.

For upgrade paths, the Socket 1366 platform is long obsolete. The L5506 is end-of-life, and its production status confirms that no new units are available. Builders looking to upgrade would need to find other Socket 1366 Xeons, such as higher-clocked or higher-core models from the same generation, but those are also discontinued. The platform itself is limited to DDR3 memory and PCIe Gen 2, which are outdated relative to modern standards.

The multiplier is locked, so overclocking is not possible without external clock generator manipulation, which is rarely supported on server boards. The part number is SLBFH, which helps identify the exact stepping. The processor has no integrated graphics, so a discrete GPU or dedicated server graphics controller is required for display output. The market segment is Server/Workstation, aligning with its ECC memory support and lower TDP. In summary, the platform is a legacy choice, and while it functions for basic tasks, it offers no meaningful upgrade path beyond the same socket’s discontinued parts.