Intel Pentium III 1400

The Intel Pentium III 1400 is a single-core, single-thread desktop processor built on the P6 architecture with the Tualatin codename. It was released on 2001-11-30 and is now end-of-life, occupying the 50th percentile among all CPUs in the database, with an average benchmark score of 0. This processor operates at a base clock of 1400.00 MHz, integrates 44 million transistors on an 80 mm² die using a 130 nm process node from Intel, and carries the part numbers SL64W, SL6C2, and SL6HR.

Platform and Compatibility

The Intel Pentium III 1400 uses the Intel Socket 370 interface, a socket that was common for desktop processors in its era. The platform is built around the P6 architecture, which dictates the chipset and motherboard requirements. The processor itself has no PCIe support listed in the data, so expansion relies on the motherboard’s chipset capabilities rather than any integrated PCIe controller on the CPU. Memory support is not specified in the fact pack, meaning the memory type, bus width, and bandwidth are determined entirely by the chipset on the motherboard, not by the processor. ECC memory is not supported by this CPU, which limits its use in error-correcting memory configurations.

The upgrade path for this socket is limited; given that this is a Tualatin-core Pentium III, it represents one of the later iterations of the Socket 370 platform. The data shows no series or generation grouping beyond the Pentium III (Tualatin) label, so compatibility is tied strictly to motherboards that support this specific core. The integrated graphics are listed as "On certain motherboards (Chipset feature)", which means the processor does not contain a graphics unit, and any video output depends entirely on the motherboard’s chipset. For users on this platform, the practical upgrade would involve finding another Socket 370 CPU that the motherboard’s BIOS recognizes, but the fact pack does not list any such alternatives.

Power and Thermals

The Pentium III 1400 has a thermal design power (TDP) of 31 watts. This is a modest power envelope, indicative of a processor that does not require aggressive cooling solutions. The 130 nm process node, while large by modern standards, was efficient enough for this era, and the 44 million transistor count is low, contributing to the 31W figure. In terms of cooling tier, a 31W TDP implies that a basic passive heatsink or a low-profile active cooler would suffice, as the thermal load is minimal. The fact pack does not provide any boost clock or additional power state data, so the 31W represents the nominal maximum sustained power draw under load.

Given the absence of a boost clock, the processor runs at a fixed 1400.00 MHz, which simplifies thermal management—there is no variable frequency to cause transient power spikes. The die size of 80 mm² also aids in heat dissipation, as the concentrated heat source is relatively small. For system builders, this means that the cooling solution can be chosen for quiet operation rather than high airflow, since the thermal output is low. No wattage figures for coolers are provided, but the 31W TDP clearly places this in the entry-level thermal class.

Benchmark Performance

The benchmark data for the Pentium III 1400 is sparse: the average benchmark score is 0, and the nearestRivals array is empty. This absence of comparative scores makes it impossible to quote exact percentage deltas against other CPUs. However, the percentileVsAllCpus field places it at the 50th percentile, meaning it sits exactly in the middle of the database’s CPU performance distribution. This is a neutral position—neither a standout performer nor a laggard, but rather a median representative of the processors cataloged.

With a single core and a single thread, the benchmark results would reflect the limitations of parallel workloads, but without any scores to analyze, the data cannot show how it stacks against specific rivals. The 1400.00 MHz clock speed is the only performance-related number available, and it suggests that the processor’s strength lies in its clock rate relative to its architecture. The lack of rival data means the text cannot state "30% ahead of X" or "behind by Y percent" because no such figures exist in the fact pack. The 50th percentile is the sole comparative metric, and it indicates that this CPU is neither exceptional nor deficient when viewed across the entire database.

The empty benchmarks array further reinforces that this processor has not been subjected to standardized testing in this dataset, or the results were not recorded. The average score of 0 is a placeholder rather than a measured outcome, so readers should interpret the performance section as indicative only of the processor’s theoretical capability based on its clock and architecture, not as a measured outcome.

Who Should Consider It

Based on the data, the Pentium III 1400 is a desktop processor with 1 core and 1 thread, which fundamentally limits its suitability for modern multi-threaded workloads. For gaming, this CPU would be constrained by the single thread, as most contemporary games require multiple cores, but the fact pack does not include gaming-specific scores. The 50th percentile ranking suggests that for legacy or single-threaded applications, it might perform adequately, but no exact numbers support a stronger claim.

For content creation, the single-thread nature is a severe bottleneck; video editing, rendering, and 3D modeling typically scale with multiple threads, and with only one thread available, the processor would be relegated to basic tasks. Office workloads, such as word processing, spreadsheets, and web browsing, are more forgiving of single cores, so this CPU could handle those duties, provided the software is not too demanding. The lack of ECC memory support means it is not suited for server or reliability-critical environments.

The 31W TDP makes it an option for low-power or fanless builds, but the end-of-life status and the absence of modern features like PCIe and integrated graphics reduce its appeal. The integrated graphics being a chipset feature means a discrete graphics card is required, adding to the system cost. Therefore, the processor is best considered for retro computing, embedded systems from that era, or as a drop-in replacement for a failed CPU in an existing Socket 370 motherboard, rather than for new builds.

Single-Thread vs Multi-Thread Behavior

The Pentium III 1400 has 1 core and 1 thread, which means it cannot execute any parallel threads; all tasks run sequentially. This is a pure single-thread processor, so its performance is entirely determined by the 1400.00 MHz clock speed and the P6 architecture’s instruction efficiency. In single-thread performance, the processor would rely on its clock rate, but with no benchmark scores, the exact behavior cannot be quantified. The 50th percentile ranking implies that, across all CPUs, it sits in the middle, but this does not distinguish between single-thread and multi-thread scores because the benchmark array is empty.

Real-world implications of this single-thread-only design are significant for operating systems and applications that assume multi-threading. A modern OS like Windows 10 or 11 may still run, but background processes and system services would contend for the same single thread, reducing responsiveness. For single-threaded applications, such as older games or legacy software, the processor can dedicate its full resources to that task, which could yield acceptable performance. However, any attempt to run multiple applications simultaneously would cause context-switching overhead, degrading throughput.

The fact pack does not provide separate single-thread and multi-thread benchmark scores, so the analysis must rely on the core/thread count alone. With 1 thread, the multi-thread performance is essentially identical to single-thread performance, as there is no parallelism. This behavior is straightforward: the processor is a single-lane road, and all traffic must queue. The 50th percentile reflects this mediocrity—it is not a high-performance part, nor is it the worst, but it is inherently limited by its lack of additional threads.

FAQ

Q: What socket does the Intel Pentium III 1400 use?

A: The processor uses Intel Socket 370.

Q: How many cores and threads does this CPU have?

A: It has 1 core and 1 thread, meaning it can execute only a single instruction sequence at a time.

Q: What is the thermal design power (TDP) of the Pentium III 1400?

A: The TDP is 31 watts, indicating a low-power processor that does not require extensive cooling.

Q: Does this processor support ECC memory?

A: No, ECC memory is not supported, so the CPU is not suitable for error-correcting memory configurations.

Q: What is the process node and transistor count?

A: It is built on a 130 nm process node with 44 million transistors, and the die size is 80 mm².

Q: What is the release date and production status?

A: It was released on 2001-11-30 and is currently end-of-life.