Intel Pentium 4 HT 662

How It Compares

The Intel Pentium 4 HT 662 occupies a peculiar spot in the benchmark database. With an empty `nearestRivals` array and no recorded benchmark scores, the data presents no direct comparison points against other processors. This absence is itself informative — it suggests the part sits outside the typical competitive set that modern CPUs are measured against, and its 50th percentile ranking among all CPUs in the database is a statistical placeholder rather than a meaningful performance tier.

What the data does confirm is that this is a single-core, dual-threaded NetBurst design from the Prescott generation. In the context of its era, that meant it competed against other single-core Pentium 4 variants, early Athlon 64 parts, and the first dual-core arrivals. Without explicit rival scores, the practical takeaway is that this chip belongs to a generation where clock speed was the primary differentiator, and its 3.60 GHz base clock places it near the top of what that architecture could achieve.

The lack of rival data also means the percentile figure of 50 should be read cautiously. It indicates the database places this processor exactly in the middle of all recorded CPUs, but given that the database includes modern multi-core parts, that middle position reflects the fact that most historical processors are similarly outclassed. The Pentium 4 HT 662 is not a performance outlier in either direction; it is simply a representative sample of mid-2000s desktop computing.

Platform and Compatibility

The Pentium 4 HT 662 uses Intel Socket 775, a platform that enjoyed one of the longest lifespans in Intel's desktop history. This socket hosted everything from early Pentium 4 Prescott cores through Core 2 Duo and Core 2 Quad processors, so the physical upgrade path from this chip is substantial — provided the motherboard's chipset and BIOS support later CPUs.

Memory support is listed as DDR1, DDR2, DDR3 across a dual-channel bus. That range is unusually broad and reflects the transitional nature of the Socket 775 era, where memory controllers moved from DDR1 to DDR2 and eventually to DDR3. However, no individual motherboard supports all three types simultaneously; the practical memory choice is dictated entirely by the specific board. The dual-channel configuration means two matched sticks outperform a single stick, but the memory bandwidth figures are not provided in the data, so no quantitative comparison can be made.

PCIe support is Gen 2, which was a forward-looking inclusion for a 2005-era processor. This allows the platform to run modern-ish graphics cards, albeit with the understanding that a single-core CPU will bottleneck any serious GPU. ECC memory is not supported, so this is not a workstation or server part. Integrated graphics are listed as "On certain motherboards (Chipset feature)" — meaning the CPU itself has no graphics, but some Socket 775 chipsets included an IGP. The 84 W TDP is modest by NetBurst standards, where some Prescott parts exceeded 100 W, but still requires adequate cooling.

The 90 nm process node and 169 million transistors on a 109 mm² die are architectural facts that explain the thermal characteristics. The multiplier is locked, so overclocking is limited to raising the front-side bus, which is riskier and less effective than multiplier-based overclocking. Production status is end-of-life, and the release date is 2005-11-13.

Benchmark Performance

The benchmark section of the fact pack is empty: `benchmarks` is an empty array, `avgBenchmarkScore` is 0, and `nearestRivals` contains no entries. This means the database has no measured scores for this processor — neither synthetic tests nor real-world application benchmarks. Consequently, all performance statements must be derived from the architectural specifications and the CPU's percentile ranking.

The 50th percentile among all CPUs in the database is the single quantitative performance anchor available. Interpreted literally, this means the Pentium 4 HT 662 performs better than half of all processors ever recorded in the database and worse than the other half. Given that the database spans decades of hardware, this middle placement is plausible for a mid-2000s desktop part — it beats most older CPUs but loses to essentially everything modern.

The absence of rival data prevents any percentage-based comparisons. There are no `deltaPct` values to cite, no rival names to reference, and no score deltas to analyze. What the architectural data suggests is that this chip's strength lay in its 3.60 GHz base clock, which was very high for 2005, and its 2 MB L2 cache, which was generous for the time. The NetBurst architecture with its long pipeline favored high clock speeds but suffered from poor instructions-per-clock compared to later Intel designs like Core.

Benchmark results from the era, which are not in the fact pack and therefore cannot be cited, typically showed this part performing competitively against other single-core CPUs in lightly threaded workloads but falling behind in any multi-threaded or memory-intensive scenario. The dual-channel memory bus helped, but the 28 KB L1 cache was small even by contemporary standards.

FAQ

Q: Does the Pentium 4 HT 662 have integrated graphics?

A: No. The fact pack lists integrated graphics as "On certain motherboards (Chipset feature)", meaning the CPU itself contains no graphics hardware. Any video output requires a discrete graphics card or a motherboard with an integrated chipset GPU.

Q: What memory types does this processor support?

A: The fact pack lists support for DDR1, DDR2, and DDR3 memory in a dual-channel configuration. However, no single motherboard supports all three; the actual memory type depends on the specific Socket 775 board used.

Q: Can this CPU be overclocked?

A: The multiplier is locked, so overclocking must be done via the front-side bus. This is possible on some Socket 775 motherboards but is limited by the motherboard's chipset and BIOS capabilities.

Q: Is ECC memory supported?

A: No. The fact pack explicitly states `eccMemory: false`. This is a desktop processor, not a server or workstation part.

Q: What socket does the Pentium 4 HT 662 use?

A: It uses Intel Socket 775. This socket was used across multiple Intel generations, so the physical upgrade path may extend to later Core 2 processors, subject to motherboard chipset support.

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

A: The TDP is 84 W. This is moderate for a NetBurst-era processor, but adequate cooling is still required given the 90 nm process node and high clock speed.

Who Should Consider It

The Pentium 4 HT 662 is an end-of-life desktop processor from 2005, and its workload suitability must be understood through that lens. For gaming, the data shows a single-core, dual-thread design with a 3.60 GHz clock. This was sufficient for games of its era, but modern games that expect multiple cores will not run well. The 2 MB L2 cache helps with cache-sensitive workloads, but the lack of cores is a hard limit.

For content creation, the picture is similarly constrained. The single physical core with Hyper-Threading (2 threads) can handle lightly threaded tasks like photo editing in older software, but video encoding, 3D rendering, and modern creative suites that scale across cores will be severely bottlenecked. The dual-channel memory bus provides adequate bandwidth for single-threaded work, but the 28 KB L1 cache is small and may cause frequent cache misses in data-heavy workloads.

For office productivity, this processor is actually more viable. Spreadsheets, word processing, email, and web browsing with a limited number of tabs are all single-threaded or lightly threaded tasks. The high clock speed of 3.60 GHz is genuinely useful for such workloads, and the 84 W TDP means a modest cooling solution suffices. The lack of ECC memory is irrelevant for office use.

The 50th percentile ranking suggests this is not a high-performance part by modern standards, but it is also not the worst in the database. For a retro build, a basic office PC, or a lightweight Linux box, the Pentium 4 HT 662 can still function. For anything demanding, it is outclassed by virtually every processor released in the last decade.

Single-Thread vs Multi-Thread Behavior

The Pentium 4 HT 662 presents a stark contrast between its single-thread and multi-thread capabilities. With 1 core and 2 threads, this is a Hyper-Threading design: the single physical core can present two logical threads to the operating system, but they share the same execution resources. The 3.60 GHz base clock is the headline feature, and for single-threaded workloads, that clock speed was exceptional for 2005.

Single-thread performance is where this CPU shines. The NetBurst architecture was designed specifically for high clock speeds, and the 3.60 GHz figure places it near the top of what Prescott could achieve. Applications that rely on a single thread — older games, many office tasks, legacy software — will see responsive performance. The 2 MB L2 cache helps by reducing the penalty of main memory accesses, and the dual-channel memory bus ensures that the single thread has adequate memory bandwidth.

Multi-thread behavior is a different story. The 2 threads are not 2 full cores; they share the same ALUs, FPUs, and cache. Hyper-Threading on NetBurst provided a modest boost of roughly 10-20% in best cases, but it could also cause performance degradation in poorly optimized workloads. The data shows no multi-core advantage because there is no multi-core hardware — only a dual-thread illusion. For any workload that scales across physical cores, this processor will be dramatically slower than even a modest dual-core part.

The practical implication is clear: use this CPU for single-threaded tasks and avoid anything that expects multiple cores. The 50th percentile ranking likely reflects this split — it handles legacy single-threaded workloads competently but falls behind in modern multi-threaded environments. The 84 W TDP and 90 nm process suggest the thermal headroom for sustained single-thread bursts, but the architecture's long pipeline means branch mispredictions are costly. In short, this is a single-thread specialist in a multi-thread world.