Intel SL8CP Pentium D 820 Desktop CPU — main product image

Intel

Intel SL8CP Pentium D 820 Desktop CPU

Name: Intel SL8CP Pentium D 820 Desktop CPU
Brand: Intel
SKU: SL8CP

★★★★★5.0 (1 reviews)

The Intel Pentium D 820 brought dual-core processing to the desktop, offering multitasking capability on the LGA 775 platform.

$18.71*

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Intel Pentium D 820 (SL8CP) is a dual-core desktop processor from Intel's first generation of consumer dual-core chips. Built on the NetBurst microarchitecture and designed for the LGA 775 socket, it was among the earliest processors to bring true hardware multitasking to mainstream desktops. Each of its two cores operates independently, allowing the system to distribute workloads across them for improved responsiveness when running multiple applications simultaneously.

Today, the Pentium D 820 serves primarily as a legacy replacement part. Its NetBurst-era design consumed considerably more power and generated more heat than the Core-series processors that succeeded it, and its per-clock performance is modest by any current standard. However, for users maintaining older workstations, point-of-sale terminals, or industrial systems built around LGA 775 motherboards, the Pentium D 820 provides a compatible and functional processor that keeps those machines operational without requiring a full platform replacement.

Specifications

Brand

Intel

Model

SL8CP

Processor Family

Pentium D

Processor Number

820

Number of Cores

2 (Dual-Core)

Socket

LGA 775

Application

Desktop

Pros & Cons

👍 Pros

Dual-core design enables basic multitasking across two independent processing cores
Compatible with the widely available LGA 775 motherboard platform
Provides a functional replacement or upgrade for legacy desktop systems still in service

👎 Cons

Based on the older NetBurst architecture, which is significantly less efficient than modern processor designs
High thermal output requires adequate cooling that may limit use in compact or passively cooled systems
Lacks support for modern instruction sets and features expected by current software
Performance is far below that of any current-generation desktop processor

Frequently Asked Questions

How many cores does the Pentium D 820 have?

The Pentium D 820 is a dual-core processor, meaning it has two independent processing cores on a single package, allowing it to handle multiple threads simultaneously.

What socket does this processor use?

The Pentium D 820 uses the LGA 775 socket, which was Intel's mainstream desktop socket during this processor generation.

Is the Pentium D 820 suitable for modern software and operating systems?

This processor was designed for an earlier era of computing. While it can run basic tasks, it lacks the performance, instruction set extensions, and efficiency required by current operating systems and applications.

Does this processor include integrated graphics?

No, the Pentium D 820 does not include integrated graphics. A discrete graphics card or a motherboard with onboard graphics is required for display output.