Intel Pentium 4 HT 3.20

The Intel Pentium 4 HT 3.20 is a single-core, dual-thread desktop processor from Intel's NetBurst family, built on the Northwood core at 130 nm. It runs at a 3.20 GHz base clock with 8 KB of L1 and 512 KB of L2 cache, draws an 82 W TDP, and occupies the 50th percentile in the benchmark database. Released on June 22, 2003, it is now end-of-life, but its data still tells a clear story about early-2000s desktop computing.

Benchmark Performance

The benchmark record for this part is sparse. The benchmarks array is empty and the average benchmark score is 0. That does not mean the processor is incapable; it means no recorded runs populate the database. The percentile vs all CPUs is 50, placing this chip exactly at the median of every processor tracked. Half of all CPUs in the database outperform it, and half fall behind. For a chip that was once a clock-speed leader, this is a striking position: the data shows a part that has been overtaken by the march of cores and efficiency, yet one that still sits ahead of a long tail of low-end and legacy hardware.

No nearest rivals are listed, so no deltaPct values exist to cite. The comparison here is against the entire database distribution. A 50th percentile rank means the Pentium 4 HT 3.20 is not an outlier in either direction. In aggregate throughput, it lands in the middle of the pack — a reasonable result for a single-core design with hyper-threading when arrayed against the multi-core parts that dominate the upper half.

What the percentile does not capture is the shape of that performance. A median aggregate score can come from a chip that is strong in one dimension and weak in another. The data points to a part that leans on clock speed — 3.20 GHz — to generate its results. With only one core, the average benchmark score of 0 is a placeholder, but the 50th percentile rank is derived from the broader dataset. In practical terms, this processor handles a single demanding thread competently and will not embarrass itself in lightly threaded workloads, but it falls behind quickly when the workload scales across cores.

Single-Thread vs Multi-Thread Behavior

This processor has 1 core and 2 threads. The thread count comes from hyper-threading, which lets the single physical core present two logical processors to the operating system — that is the "HT" in the product name. The base clock of 3.20 GHz is the only frequency figure; there is no boost clock, so the chip runs at that speed under load, subject to thermal and power limits.

Single-thread performance is the strong suit. A 3.20 GHz NetBurst core with an 8 KB L1 and 512 KB L2 cache delivers snappy response in legacy applications written for single-core CPUs. The 130 nm Northwood design was built for high clock speeds, and the data here — 1 core, high clock — reinforces that this is a part designed for raw clock speed over parallel throughput.

Multi-thread behavior is more nuanced. With 2 threads on 1 core, hyper-threading allows the core to work on two instruction streams simultaneously, but it does not double throughput. The execution resources are shared, so the benefit appears only when one thread stalls — on a cache miss, a branch mispredict, or a memory wait — and the other thread can use the idle resources. In the best case, the 2-thread configuration behaves like a modest efficiency boost over a single-threaded Pentium 4; in the worst case, with both threads competing for the same resources, gains shrink toward zero.

For real workloads, this split means: older single-threaded applications run at the full 3.20 GHz and see the benefit of the high clock. Applications that can use two threads see a smaller, inconsistent gain. Anything that wants more than two threads — modern games, video encoders, compilers — is bottlenecked by the single core. The 512 KB L2 cache is small by modern standards, so workloads with large working sets will spend more time waiting on memory.

Platform and Compatibility

The Pentium 4 HT 3.20 uses Intel Socket 478, a platform that was widespread in the early 2000s. Memory support covers DDR1 and DDR2, a transitional feature — the chip can be paired with either memory generation depending on the motherboard. There is no ECC memory support, so this is aimed at mainstream desktops rather than servers or workstations.

The integrated graphics situation is unusual: graphics are available "on certain motherboards" as a chipset feature. The processor itself has no integrated GPU, but some Socket 478 motherboards with integrated graphics chipsets can provide display output. That makes the platform flexible for basic builds without a discrete graphics card, though the performance of such chipset graphics is limited.

PCIe support is not listed in the data, and the multiplier is locked, so overclocking via multiplier adjustment is not an option. The processor is end-of-life, so the upgrade path is limited to whatever Socket 478 motherboards remain in circulation. The part number SL792SL6WG identifies the specific stepping. The release date of June 22, 2003 places this chip in the middle of the Pentium 4 era. The 130 nm process, 55 million transistors, and 131 mm² die size are all markers of an older manufacturing era. Motherboards, memory, and cooling are all out of production, so a build around this CPU requires sourcing used parts.

How It Compares

With no nearest rivals listed in the database, the comparison must be drawn against the full field. The 50th percentile rank is the anchor. This processor sits at the exact middle of all CPUs tracked by the database. It outperforms half of all recorded processors — a large group that includes low-end, low-clock, and very old parts — and it trails the other half, which includes all modern multi-core designs.

Against the top of the database, the gap is enormous in multi-threaded workloads, but the single-thread clock of 3.20 GHz keeps it from being a complete outlier. In the context of its own era, this was a high-clock part. In the context of the entire database, it is a median performer. The lack of rival data means no percentage deltas can be cited, but the percentile alone tells the story: this is a middle-of-the-road processor that has aged into a retro or entry-level role.

Power and Thermals

The TDP is 82 W — the amount of heat the cooling solution must dissipate under sustained load. For a single-core processor, 82 W is a notable figure, reflecting the high clock speed and the NetBurst architecture's power appetite. The 130 nm process node and 55 million transistors on a 131 mm² die give a sense of the density: this is not a power-efficient design by modern standards.

Cooling requirements are modest but not trivial. An 82 W TDP class processor needs a capable air cooler with a decent heatsink and fan. The stock coolers from the era were designed for this thermal envelope, and any modern tower cooler with a Socket 478 mounting kit would handle it easily. The lack of a boost clock means the CPU does not have a turbo mode that would spike power draw; it runs at 3.20 GHz continuously under load. Thermals will be steady rather than spiky, which simplifies cooling. Because the multiplier is locked, there is no easy overclocking path, so the 82 W TDP is effectively the ceiling for this chip in stock operation. A builder using this processor today should ensure the cooler is in good condition — old thermal paste should be replaced — but the thermal load is well within the range of a basic air cooler.

Who Should Consider It

This processor suits a narrow set of use cases today, all grounded in its 1-core, 2-thread design and 3.20 GHz clock.

For gaming, this is a retro option. Games from the early 2000s designed for single-core CPUs will run at the full clock speed. The 50th percentile rank means it is not a competitive modern gaming chip, but for period-correct builds — an early-2000s machine with era-appropriate software — it delivers the intended experience. Modern games that require multiple cores will not run well, and the 512 KB L2 cache will hurt in titles with large streaming datasets.

For content creation, this is not a practical choice. Video encoding, 3D rendering, and photo editing in modern software all scale across cores, and a 1-core processor with 2 threads will be severely limited. The 2-thread hyper-threading helps only in lightly threaded tasks. The data shows a chip that will complete single-threaded operations at a reasonable pace, but anything that spreads across threads will expose the single-core bottleneck.

For office and productivity, the picture is mixed. Basic word processing, spreadsheet work, and email are all lightly threaded and will run at 3.20 GHz. The 50th percentile position suggests it can handle these tasks without frustration, provided the rest of the system is matched. However, modern web pages are heavy on JavaScript and often use multiple threads, so the experience will degrade on contemporary sites.

The end-of-life status and Socket 478 platform mean this is not a daily-driver recommendation. It is a collector's piece, a retro gaming build, or a learning platform for understanding NetBurst architecture. The 82 W TDP and 130 nm process are historical artifacts. For anyone who wants to experience early-2000s desktop computing, the Pentium 4 HT 3.20 offers a genuine midpoint experience — neither the fastest nor the slowest of its era, and exactly at the median of everything the database tracks.