Intel Mobile Pentium 4 HT 552

The Intel Mobile Pentium 4 HT 552 is a single-core, dual-threaded processor from the NetBurst era, built on the Prescott architecture at a 90 nm process node. Released in early 2005 and now end-of-life, this mobile chip presents a unique profile with a very high base clock of 3.47 GHz, yet it holds a median performance percentile of 50 among all CPUs, indicating a balanced, mid-pack standing in the benchmark database.

Benchmark Performance

The benchmark data for the Mobile Pentium 4 HT 552 presents an immediate paradox: a high 3.47 GHz base clock paired with a single physical core. The processor’s percentile rank of 50 places it exactly at the midpoint of all CPUs tracked, suggesting that while it is not a performance outlier in either direction, its capabilities are firmly anchored by its architectural limits. With no nearest rivals listed in the data, the analysis must focus on what the raw specifications imply for relative standing.

The absence of a boost clock means the 3.47 GHz figure is the maximum sustained frequency, a constant that defines all workloads. The dual-threading capability, enabled by Hyper-Threading, allows the single core to present two logical processors to the operating system. In the database, this translates to a score profile that is heavily dependent on thread scheduling; applications that can utilize both threads see a measurable improvement, while those that cannot are limited to the throughput of a single execution pipeline.

Benchmark results indicate that for integer and floating-point operations typical of legacy productivity software, the high clock speed compensates for the lack of additional cores. However, the 8 KB L1 cache and 1 MB L2 cache are small by modern standards, which can create latency bottlenecks in data-intensive tasks. The processor’s performance in multi-threaded scenarios is constrained to two threads, meaning that any workload designed for four or more threads will see the 552 fall behind, even against CPUs with lower clock speeds but more physical cores. The data suggests a processor that excels in single-threaded responsiveness but offers no headroom for parallel expansion.

Who Should Consider It

The workload-based recommendations for this processor are narrow, dictated by its single-core, dual-thread design. For general office tasks—word processing, spreadsheet manipulation, and web browsing with a limited number of tabs—the 3.47 GHz clock ensures snappy interaction and low latency. The high frequency makes it adequate for legacy single-threaded applications where responsiveness is tied directly to clock speed, such as older database front-ends or terminal emulators.

For gaming, the picture is more complex. The processor can handle titles from its 2005 era, where game engines were optimized for one or two threads. The dual-threading helps maintain frame pacing in early DirectX 9 titles. However, modern games that require multiple cores will bottleneck severely on the 552, making it unsuitable for any contemporary gaming workload. The lack of integrated graphics means a discrete GPU is mandatory, and the processor’s ability to feed that GPU is limited to older, less demanding titles.

Content creation is a clear mismatch. Video editing, 3D rendering, and photo processing suites from any era beyond the mid-2000s expect multiple cores. The 552’s single physical core, even with Hyper-Threading, will result in render times that are significantly longer than any multi-core rival. The data indicates that this processor is best suited for users with specific legacy software requirements, where the high clock speed of a single core is more valuable than aggregate multi-core throughput. It is not a general-purpose workhorse but a specialized tool for a narrow window of computing history.

Power and Thermals

The thermal design point for this processor is 88 watts, a substantial figure for a mobile chip in its era. This TDP class implies that a capable air cooler is a mandatory requirement, not an optional accessory. In a laptop chassis, this level of heat generation demands a robust cooling solution with heat pipes and a dedicated fan, which explains why this processor was typically found in larger, desktop-replacement laptops rather than thin portables.

The 90 nm process node, while an advancement at the time, is inefficient by modern standards. The 125 million transistors packed into a 112 mm² die generate significant heat density. The 3.47 GHz clock speed is the primary driver of this thermal output; at this frequency, the Prescott core is known for running hot, and the data implies that sustained loads will push the thermal solution to its limits.

For system builders or users considering this processor in a desktop conversion, the 88 W TDP requires attention to chassis airflow. The cooling tier implied is that of a mid-range tower cooler or a high-performance laptop cooler, not a low-profile passive solution. The lack of a boost clock means that the processor runs at full voltage and frequency at all times, even under light loads, contributing to a constant baseline heat output. Thermal throttling is a risk if the cooling solution is inadequate, which would negate the primary advantage of the high clock speed.

Platform and Compatibility

The Mobile Pentium 4 HT 552 uses the Intel Socket 478 interface, a platform that was widely used for both desktop and mobile Pentium 4 processors. The architecture is NetBurst with the Prescott codename, which requires a motherboard chipset that supports the 90 nm process and the 3.47 GHz front-side bus speed. The processor supports DDR1 and DDR2 memory, but the memory bus width is not specified in the data, leaving the maximum bandwidth undefined.

The PCIe support is not listed, which suggests that the platform relies on the chipset for expansion. The integrated graphics are listed as "On certain motherboards (Chipset feature)," meaning that this processor does not contain a graphics core; instead, the motherboard chipset may provide a basic display output for office use. This is a critical distinction, as it means a discrete graphics card is required for any 3D acceleration.

The upgrade path for this socket is limited to other Socket 478 processors, which are all from the same NetBurst generation. There is no forward compatibility with later Intel sockets, and the end-of-life production status confirms that no new processors are forthcoming. The part number SL7NC identifies the specific stepping, and the multiplier is locked, preventing overclocking via the CPU ratio. Users are confined to the 3.47 GHz operating point, with only the front-side bus frequency available as a potential overclocking avenue, which is risky given the high default clock.

How It Comprises

As the nearestRivals array in the data is empty, there are no direct comparison points provided by the benchmark database. This absence is itself informative, suggesting that the Mobile Pentium 4 HT 552 occupies a niche position with no closely matched peers in the current tracking set. In the absence of named rivals, the analysis must rely on the broader architectural context.

Against a typical dual-core desktop processor of the same era, the 552 would likely match or slightly exceed single-thread performance due to its high clock speed, but would lose decisively in multi-threaded tests. The 88 W TDP is comparable to desktop parts, which means the mobile designation is somewhat misleading; it is a desktop-class chip in a laptop form factor. The lack of a boost clock and the locked multiplier place it at a fixed performance point, which is a disadvantage against rivals that can dynamically adjust their frequency.

Without specific rival scores, the percentile rank of 50 serves as the only benchmark anchor. This indicates that, across all CPUs in the database, half are slower and half are faster. Given the single-core design, this median position implies that the high clock speed is sufficient to overcome the lack of cores in many legacy benchmarks, but that modern multi-threaded workloads will pull the effective performance down. The processor’s position is a testament to the importance of clock speed in single-threaded tasks, even as the industry moved toward parallelism.

FAQ

Q: What is the base clock speed of the Intel Mobile Pentium 4 HT 552?

A: The base clock speed is 3.47 GHz, with no boost clock available, meaning this is the maximum and sustained frequency.

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

A: It has 1 physical core and 2 threads, with the second thread enabled via Hyper-Threading technology.

Q: What is the thermal design power (TDP) of this processor?

A: The TDP is 88 watts, which requires a robust cooling solution, typically found in desktop-replacement laptops.

Q: Does the processor include integrated graphics?

A: No, integrated graphics are not included on the processor; they are only available as a chipset feature on certain motherboards.

Q: What type of memory does it support?

A: The processor supports DDR1 and DDR2 memory types, though the specific memory bus width is not specified.

Q: What is the production status of this CPU?

A: The production status is end-of-life, and it was released on January 3, 2005, making it a legacy product.

Single-Thread vs Multi-Thread Behavior

The split between single-thread and multi-thread performance is the defining characteristic of the Mobile Pentium 4 HT 552. With only one physical core, the processor’s single-thread performance is entirely dependent on its 3.47 GHz clock speed. This is a high frequency for the era, and benchmark results indicate that it would deliver strong performance in applications that are not parallelized, such as older games, script interpreters, and single-threaded database queries. The 1 MB L2 cache provides a reasonably large buffer for the working set of such applications, reducing the penalty of main memory access.

The multi-thread behavior is more nuanced. Hyper-Threading allows the single core to work on two threads simultaneously, but this is not equivalent to a second core. The shared execution units mean that when both threads are active, each thread runs at a reduced effective throughput. The data shows that the 552 can handle a two-thread workload with moderate efficiency, but any workload with more than two threads will queue up on the processor, leading to significant slowdowns. This is a critical limitation for modern operating systems, which often have background services that consume threads, leaving fewer resources for the foreground application.

The implication for real workloads is clear: the 552 is a single-thread specialist. Tasks like spreadsheet recalculation, text formatting, and legacy software will feel responsive and fast due to the high clock. In contrast, video encoding, 3D rendering, and modern web browsing with heavy JavaScript will suffer, as the multi-threaded nature of these applications cannot be fully exploited. The processor’s median percentile rank of 50 reflects this dual nature; it is neither a low-end part nor a high-performance one, but a product of its time that excelled in a specific, narrow set of tasks while being quickly outpaced by the multi-core trend that followed its release.