Intel Pentium 4 HT 3.0E

Launched in early 2004 as part of Intel’s NetBurst architecture, the Pentium 4 HT 3.0E is a single-core, dual-threaded desktop processor built on the 90 nm Prescott process. It operates at a fixed 3.00 GHz base clock with no boost capability, and it remains a notable example of the high-frequency, high-power design philosophy of that era. The processor is end-of-life, with a 50th percentile performance ranking relative to all CPUs in the database, and it carries no average benchmark score, meaning its quantitative standing is derived entirely from architectural characteristics and system-level compatibility rather than recorded test results.

Platform and Compatibility

The Pentium 4 HT 3.0E uses Intel Socket 478, a platform that was widely adopted for Pentium 4 processors during the early 2000s. Socket 478 motherboards typically support DDR1 memory, and in some cases DDR2, depending on the chipset and board design. The processor’s memory support explicitly lists both DDR1 and DDR2, but no memory bus width or bandwidth figures are provided, so the practical memory throughput depends entirely on the paired motherboard and its chipset implementation. ECC memory is not supported, which positions this processor for mainstream desktop use rather than workstation or server environments where error-correcting memory would be expected.

The processor lacks any dedicated PCIe specification in the data, which suggests that PCIe connectivity, if present, is a function of the chipset rather than the CPU itself. The integrated graphics statement is phrased as “On certain motherboards (Chipset feature),” clarifying that the Pentium 4 HT 3.0E does not contain a graphics core; instead, any onboard video capability would come from the motherboard’s chipset, not the processor. For upgrade paths, the processor’s Socket 478 interface limits users to motherboards and chipsets from that generation. Since the production status is end-of-life, no forward-compatible upgrade within the same socket is implied by the data, and users would need to move to a different socket for newer Intel architectures. The 90 nm process node and 125 million transistors on a 109 mm² die were advanced for the time, but they do not translate into modern platform longevity.

Power and Thermals

This processor carries a TDP of 115 watts, which is substantial for a single-core part. That figure places it in a power class that demands a robust cooling solution — a capable air cooler with a copper base and a larger fan would be the minimum recommendation, though the data does not specify any cooler type or size. The high TDP is a direct consequence of the Prescott core’s design, which favored extreme clock speeds over efficiency. For a system builder in 2004, a 115 W TDP meant careful attention to case airflow, power supply capacity, and motherboard VRM quality, since the CPU would generate significant heat under sustained load. The absence of a boost clock means the processor runs at its full 3.00 GHz whenever active, so thermal load is constant rather than bursty. In modern terms, this TDP is comparable to many mid-range multi-core processors, but it is delivered from a single physical core, making the thermal density high relative to the die size of 109 mm². The data does not list any thermal specification beyond the TDP, so no operating temperature limits or cooling tier classifications can be stated with numeric precision. However, the 115 W figure alone signals that a stock Intel cooler from that era would be marginal, and aftermarket cooling would be advisable for sustained operation.

Benchmark Performance

Benchmark results for the Pentium 4 HT 3.0E are sparse: the benchmarks array is empty, and the average benchmark score is zero. The only quantitative performance indicator is the percentileVsAllCpus value of 50, which places the processor exactly at the median of all CPUs in the database. This percentile is a relative measure, not an absolute score, so it indicates that half of recorded processors perform better and half perform worse. Given the processor’s single core and two threads, the 50th percentile is likely a reflection of its historical context — many older and slower parts exist, but also many faster ones. Without rival data in the nearestRivals array, no direct percentage deltas can be computed against specific competitors. The processor’s 3.00 GHz clock speed, 1 MB L2 cache, and 16 KB L1 cache are the only architectural numbers available for interpreting performance. The 1 MB L2 cache was generous for its time and likely helped mitigate the high-latency memory access of the DDR1/DDR2 era. However, the lack of any benchmark scores means that all performance statements must remain qualitative or based on the percentile alone. The data shows that this processor sits in the middle of the performance distribution, which is a reasonable outcome for a high-clocked but single-threaded part from early 2004.

How It Compares

The nearestRivals array is empty, so there are no direct competitor names, scores, or deltaPct values to reference. This absence means the Pentium 4 HT 3.0E cannot be positioned against any specific rival based on quantitative data. In the broader CPU landscape, its 50th percentile ranking places it at the midpoint, but without named rivals, the analysis cannot state whether it outperforms or trails any particular model. The processor’s architecture — NetBurst with Prescott codename — is known for long pipelines and high clock speeds, but no other CPUs in the same architecture are listed for comparison. The only structural comparison possible is internal: the processor has one core and two threads, which was a distinguishing feature at launch, but the data does not provide sibling processors like the 2.8E or 3.2E to contrast. Consequently, any positional statement must acknowledge the lack of direct rival data. The processor’s market segment is Desktop, and its production status is end-of-life, so it competes only in legacy or retro-computing contexts where modern processors are not relevant. Without rival scores, the percentile remains the sole comparative metric, and it suggests parity with the median CPU rather than dominance or deficiency.

Single-Thread vs Multi-Thread Behavior

The Pentium 4 HT 3.0E has one physical core and two threads, enabled by Hyper-Threading technology. The base clock is 3.00 GHz, and there is no boost clock, so both threads run at the same fixed frequency when active. The 16 KB L1 cache and 1 MB L2 cache are shared between the two logical processors, meaning each thread competes for the same cache resources. In single-threaded workloads, the full 1 MB L2 cache and the entire execution pipeline are available to the one active thread, which is the optimal scenario for this processor. The high clock speed of 3.00 GHz would have been competitive for integer and floating-point tasks of that era, but the data does not include specific single-thread scores. In multi-threaded workloads, the second thread provides a modest throughput gain because it fills idle execution units during stalls, but it does not double performance since the core is still a single physical unit. The 50th percentile ranking does not differentiate between single-thread and multi-thread performance, so the split must be inferred from the core and thread counts. For real-world usage, this processor would excel in lightly threaded applications like early 2000s office software, web browsing, and legacy games, where one thread dominates. In contrast, modern workloads that expect multiple cores would see significant limitations, as the two threads share a single core’s execution resources. The lack of an L3 cache and the modest L2 size further constrain multi-threaded performance, since concurrent threads must share the 1 MB L2. The data does not provide any benchmark scores to quantify the single-thread versus multi-thread gap, but the architectural split — one core, two threads — is clear: the processor is fundamentally a single-thread performer with a secondary thread that helps hide latency, not a true multi-threaded engine.