Intel Pentium 4 HT 631

The Intel Pentium 4 HT 631 is an end-of-life desktop processor released on 2006-01-04, built on Intel’s 65 nm Cedar Mill incarnation of the NetBurst architecture. It has one physical core, two threads via Hyper-Threading, and a 3.00 GHz base clock with no boost clock listed. The cache layout is a 28 KB L1 and a 2 MB L2, the TDP is 86 W, and the socket is Intel Socket 775. It supports DDR1, DDR2, and DDR3 memory over a dual-channel bus, and the record lists PCIe Gen 2 for connectivity. Critically for this database entry, the benchmarks array is empty, the average benchmark score is 0, and the nearestRivals list is empty. The only global ranking figure present is a 50th-percentile placement relative to all CPUs.

Benchmark Performance

The most important statement about this processor’s benchmark section is what it does not contain. There are no benchmark records, no average score, and no named rivals. Because nearestRivals is empty, there are no deltaPct values to compare, and any statement such as “X percent ahead of” or “Y percent behind” a rival would be unsupported by the data. Exact percentage deltas cannot be computed from the fact pack.

What remains is the 50th-percentile figure. A 50th-percentile placement places the CPU at the middle of the database’s distribution of all CPUs. That is a neutral midpoint: not a high rank, not a low rank. It is also not a score. It does not say how fast the chip is; it only says where the chip sits in the overall performance ordering.

The structural hardware facts provide the only performance context. The chip runs at a fixed 3.00 GHz base clock, since no boost clock is present. It has one core and two threads. The 2 MB L2 cache is the larger cache level, and the 28 KB L1 cache is the smaller first-level cache. Neither cache figure is accompanied by bandwidth or latency measurements. The 65 nm process, 188 million transistors, and 81 mm² die size describe the implementation, but they do not translate into a benchmark score.

The 50th-percentile overall position is consistent with a single-core desktop processor from the 2006 era, but the data does not allow a more precise interpretation. There is no frequency-versus-rival measurement, no cache benchmark, and no multi-thread scaling result. In a benchmark database, this entry is essentially a hardware identity with a placement percentile and no measured performance deltas.

What can be said from the data is limited but clear: the processor is not at the bottom and not at the top. It sits at the median. For a single-core, dual-thread part with a 3.00 GHz base clock and a 2 MB L2 cache, that placement is neither surprising nor informative by itself. Until benchmark records are added, any attempt to rank it against specific CPUs using exact percentages would be fabrication.

Power and Thermals

The thermal figure in the fact pack is unambiguous: the TDP is 86 W. That is a thermal design power value, not a measured power-consumption number under a specific workload, but it establishes the thermal envelope that a cooling solution must handle.

An 86 W TDP implies a capable air cooler rather than an exotic liquid setup. The chip is built on a 65 nm process, and that is the only process figure available. No power draw measurements exist in the record, and no efficiency metrics are included. The TDP is also the only thermal number in the entry; there are no maximum-temperature figures, no cooler requirements, and no fan specifications.

For system builders, the 86 W figure sits in the range where a modest active cooling solution should be sufficient. The fact pack does not specify what cooler shipped with the processor, nor does it mention noise levels or thermal headroom. The data only supports the conclusion that the processor is designed around an 86 W thermal envelope.

There is no measured power story beyond TDP. That means the database cannot confirm how much power the chip draws at idle, under load, or in a thermally constrained environment. The architecture is NetBurst on the Cedar Mill codename, and the process node is 65 nm, but those facts do not by themselves quantify efficiency. The thermal class for the chip is therefore defined entirely by the 86 W TDP.

Who Should Consider It

Because there are no benchmark scores, workload recommendations must be grounded in the processor’s listed characteristics rather than measured performance. The 50th-percentile placement suggests a mid-pack processor overall, but the shape of that performance is constrained by the hardware.

Single-threaded workloads are the most natural fit. The 3.00 GHz base clock is the only listed frequency, and the processor has one physical core. For software that relies heavily on one execution thread, that core and its 2 MB L2 cache are the primary resources. The database does not include office-application scores, so an office user cannot point to a specific result, but the hardware layout is consistent with lighter productivity tasks.

Multi-threaded creation workloads are a weaker match. The chip has two threads, but they both run on one physical core. Threaded rendering, video encoding, or heavy compilation would have only two logical threads to work with, and those threads share the same execution engine. No creation benchmark is present to quantify the result, but the core count and thread count are the limiting structural facts.

For gaming, no game benchmarks are listed. The processor also has no integrated graphics on the CPU package; the fact pack lists integrated graphics as “On certain motherboards (Chipset feature).” That means display output depends on the motherboard chipset, and a gaming or media system would require a separate graphics solution. The 50th-percentile overall placement does not indicate the gaming performance class, and there are no game-specific scores to cite.

The memory support is broad for the platform: DDR1, DDR2, and DDR3 are listed, with a dual-channel memory bus. ECC memory is not supported. The PCIe Gen 2 interface is present in the record, but no lane count is given. The processor is designated as desktop, end-of-life, and built for Intel Socket 775. Buyers building around this socket would need to account for the lack of any benchmark data when setting expectations.

FAQ

Q: What is the base clock speed of the Intel Pentium 4 HT 631?

A: The base clock is 3.00 GHz. No boost clock is listed, so 3.00 GHz is the only frequency figure in the record.

Q: Does the processor support ECC memory?

A: No. The eccMemory field is false.

Q: What socket does the processor use?

A: It uses Intel Socket 775.

Q: What is the TDP?

A: The TDP is 86 W.

Q: Does it have an unlocked multiplier?

A: No. The multiplierUnlocked field is false.

Q: What is the production status?

A: The production status is end-of-life. The release date is listed as 2006-01-04.

Q: What is the part number?

A: The part number is SL94Y.

Single-Thread vs Multi-Thread Behavior

The defining split in this processor is one core and two threads. That is a Hyper-Threading arrangement: one physical execution core can present two logical threads to the operating system. This is not the same as having two physical cores.

In single-threaded workloads, the processor can focus the entire core on one stream of work. The 3.00 GHz base clock and the 2 MB L2 cache are the resources available to that stream. Because there is no boost clock, there is no higher frequency state to invoke when only one thread is active. The single-thread behavior is therefore anchored at 3.00 GHz.

In multi-threaded workloads, two threads may be scheduled at once. Both threads are handled by the same physical core, so they share execution resources. The fact pack does not specify how the 28 KB L1 and 2 MB L2 caches are partitioned between the two threads; it only provides the total cache sizes. The dual-channel memory bus is shared between the threads as well, though no bandwidth figure is given.

The real-world split between single-thread and multi-thread behavior is not measured anywhere in this entry. There are no SMT on/off comparisons, no single-thread benchmark scores, and no multi-thread benchmark scores. The 50th-percentile overall placement does not separate the two behaviors. The hardware description, however, is clear: a two-thread workload can be accepted by the scheduler, but both threads are competing for the same single core.

What the split means in practice is that highly serial software should align with the 3.00 GHz clock, while software that can use exactly two threads may see some benefit from having a second logical thread available. The size of that benefit is not quantified in the database. Because there are no multi-core capabilities, software expecting more than two parallel threads would have no additional hardware contexts to use.

The single-thread versus multi-thread story is thus defined by the chip’s physical structure: one physical core, two logical threads, a fixed 3.00 GHz frequency, a 2 MB L2 cache, and an 86 W TDP. Those are the facts that shape the processor’s behavior. The benchmark database supplies no scores to measure how that behavior performs against other CPUs, and the empty nearestRivals list leaves no exact percentage deltas to report.