INTEL

Intel Pentium III Xeon 800 2.8V

Intel processor specifications and benchmark scores

1
Cores
1
Threads
GHz Boost
25W
TDP

Intel Pentium III Xeon 800 2.8V Specifications

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Pentium III Xeon 800 2.8V Core Configuration

Processing cores and threading

The Intel Pentium III Xeon 800 2.8V 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
2
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Pentium III Xeon 800 2.8V Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Pentium III Xeon 800 2.8V 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 III Xeon 800 2.8V by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
800 GHz
Boost Clock
N/A
Multiplier
6x
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Intel's Pentium III Xeon 800 2.8V Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Pentium III Xeon 800 2.8V 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 III Xeon 800 2.8V's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
32 KB
L2 Cache
256 KB
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P6 Architecture & Process

Manufacturing and design details

The Intel Pentium III Xeon 800 2.8V 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 III Xeon 800 2.8V incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
P6
Codename
Cascades
Process Node
180 nm
Foundry
Intel
Transistors
28 million
Die Size
106 mm²
Generation
Pentium III Xeon (Cascades)
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P6 Instruction Set Features

Supported CPU instructions and extensions

The Pentium III Xeon 800 2.8V 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
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Pentium III Xeon 800 2.8V Power & Thermal

TDP and power specifications

The Intel Pentium III Xeon 800 2.8V has a TDP (Thermal Design Power) of 25W, 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
25W
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Intel Slot 2 Platform & Socket

Compatibility information

The Pentium III Xeon 800 2.8V uses the Intel Slot 2 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 Slot 2
Package
SECC
DDR5

Intel Slot 2 Memory Support

RAM compatibility and speeds

Memory support specifications for the Pentium III Xeon 800 2.8V 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 III Xeon 800 2.8V 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 Bus
Single-channel
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Pentium III Xeon 800 2.8V Product Information

Release and pricing details

The Intel Pentium III Xeon 800 2.8V 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 III Xeon 800 2.8V by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Jan 2000
Launch Price
$901
Market
Server/Workstation
Status
End-of-life
Part Number
SL3WTSL4H8

Pentium III Xeon 800 2.8V Benchmark Scores

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No benchmark data available for this CPU.

About Intel Pentium III Xeon 800 2.8V

Intel Pentium III Xeon 800 2.8V: A Deep Dive for Tech Enthusiasts

The Intel Pentium III Xeon 800 2.8V is a niche gem from the early 2000s, designed for workstation-class tasks with its 180nm process technology and single-core architecture. At 2.8GHz base clock and 25W TDP, it balances performance and power efficiency for everyday computing. This chip was Intel's response to emerging professional demands, offering reliability for tasks like video editing or software development in setups constrained by older motherboards. Its Socket Slot 2 design makes it compatible with older Pentium III-based systems, making it a collector's favorite for retro tech enthusiasts. The launch price of $901 reflects its premium positioning, but its value proposition lies in its durability and precise clock speeds for legacy applications.

For workstation performance, the Pentium III Xeon 800 2.8V shines in productivity-heavy environments where stability matters more than raw overclocking. Its single-thread design optimizes efficiency for applications that rely on single-core performance, such as CAD software or encoding workflows. While modern CPUs dominate in multithreaded tasks, this Xeon remains competitive for niche workflows like legacy database management or server-side scripting in outdated infrastructure. The 180nm process ensures minimal heat output, translating to quieter operation and cooler running during extended work sessions. Its compatibility with older chipsets highlights its relevance in evolving hardware ecosystems where backward compatibility is key.

Cost effectiveness defines the Pentium III Xeon 800 2.8V's appeal, offering a low-cost entry point for maintaining older systems without financial risk. For $901 spent decades ago, it delivers consistent performance for essential tasks, making it a budget-friendly workhorse in retro computing communities. Motherboard support focuses on compatibility with Pentium III-era platforms, prioritizing reliability over cutting-edge features. This chipset's legacy lies in its ability to power functional, stable systems for basic productivity without the complexity of modern hardware drivers. While it lacks RGB lighting or AI features, its simplicity and proven reliability make it ideal for minimalist builders or hobbyists reviving classic software.

The AMD Equivalent of Pentium III Xeon 800 2.8V

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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