INTEL

Intel Pentium 4 1.5

Intel processor specifications and benchmark scores

1
Cores
1
Threads
GHz Boost
58W
TDP
🖥️Integrated GPU

Intel Pentium 4 1.5 Specifications

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Pentium 4 1.5 Core Configuration

Processing cores and threading

The Intel Pentium 4 1.5 features 1 physical cores and 1 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
1
Threads
1
SMP CPUs
1
⏱️

Pentium 4 1.5 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Pentium 4 1.5 benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Pentium 4 1.5 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
1500 GHz
Boost Clock
N/A
Multiplier
15x
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Intel's Pentium 4 1.5 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Pentium 4 1.5 processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Pentium 4 1.5's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
8 KB
L2 Cache
256 KB
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NetBurst Architecture & Process

Manufacturing and design details

The Intel Pentium 4 1.5 is built on Intel's 180 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in Pentium 4 1.5 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
NetBurst
Codename
Willamette
Process Node
180 nm
Foundry
Intel
Transistors
42 million
Die Size
217 mm²
Generation
Pentium 4 (Willamette)
🔢

NetBurst Instruction Set Features

Supported CPU instructions and extensions

The Pentium 4 1.5 by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
🔌

Pentium 4 1.5 Power & Thermal

TDP and power specifications

The Intel Pentium 4 1.5 has a TDP (Thermal Design Power) of 58W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
58W
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Intel Socket 478 Platform & Socket

Compatibility information

The Pentium 4 1.5 uses the Intel Socket 478 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 478
Package
µPGA
DDR5

Intel Socket 478 Memory Support

RAM compatibility and speeds

Memory support specifications for the Pentium 4 1.5 define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Pentium 4 1.5 determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR1, DDR2
🖥️

Intel's Pentium 4 1.5 Integrated Graphics

Built-in GPU specifications

The Intel Pentium 4 1.5 includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the Pentium 4 1.5 provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
On certain motherboards (Chipset feature)
Graphics Model
On certain motherboards (Chipset feature)
📦

Pentium 4 1.5 Product Information

Release and pricing details

The Intel Pentium 4 1.5 is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Pentium 4 1.5 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Aug 2001
Market
Desktop
Status
End-of-life
Part Number
SL5TJSL5N8SL59VSL6BASL62YSL5UF

Pentium 4 1.5 Benchmark Scores

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No benchmark data available for this CPU.

About Intel Pentium 4 1.5

The Intel Pentium 4 1.5 GHz is a single‑core, single‑thread CPU that debuted in late 2001. Built on a 180 nm process, it slots into the legacy Socket 478 platform that once powered many entry‑level desktops. With a base clock of 1.5 GHz and a thermal design power of 58 W, it was positioned as a modest step up from the earlier 1.3 GHz models. The chip belongs to the Willamette generation, marking Intel’s first foray into the NetBurst micro‑architecture. Although the clock speed sounds low by today’s standards, the design emphasized higher instruction throughput rather than raw frequency. Its modest transistor count and simple pipeline make it a useful reference point for studying early‑2000s CPU evolution.

In everyday tasks such as web browsing, office productivity, and media playback, the 1.5 GHz Pentium 4 delivers performance that feels sluggish compared to even budget modern chips. Basic applications launch, but page rendering and script execution can lag noticeably when multiple tabs are open. The single‑threaded nature means that any software that can leverage multiple cores will quickly outpace it. File compression and video transcoding are particularly slow, as the processor lacks the SIMD extensions found in later Intel families. That said, the CPU can still handle lightweight Linux distributions or Windows 98/ME environments without choking. Users who stick to legacy software or retro gaming platforms will find the performance acceptable, provided expectations are tempered.

When it comes to gaming, Intel’s early‑generation Pentium 4 at 1.5 GHz is far from a powerhouse. Most titles released after 2003 demand at least a dual‑core processor and a dedicated graphics card to achieve

The AMD Equivalent of Pentium 4 1.5

Looking for a similar processor from AMD? The AMD Ryzen 5 1400 offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 1400

AMD • 4 Cores

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