INTEL

Intel Pentium Extreme Edition 840

Intel processor specifications and benchmark scores

2
Cores
4
Threads
GHz Boost
130W
TDP
🔓Unlocked 🖥️Integrated GPU

Intel Pentium Extreme Edition 840 Specifications

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Pentium Extreme Edition 840 Core Configuration

Processing cores and threading

The Intel Pentium Extreme Edition 840 features 2 physical cores and 4 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
2
Threads
4
SMP CPUs
1
⏱️

Pentium Extreme Edition 840 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Pentium Extreme Edition 840 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 Extreme Edition 840 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.2 GHz
Boost Clock
N/A
Multiplier
16x 🔓
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Intel's Pentium Extreme Edition 840 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Pentium Extreme Edition 840 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 Extreme Edition 840's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
16 KB (per core)
L2 Cache
1 MB (per core)
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NetBurst Architecture & Process

Manufacturing and design details

The Intel Pentium Extreme Edition 840 is built on Intel's 90 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 Extreme Edition 840 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
NetBurst
Codename
Smithfield
Process Node
90 nm
Foundry
Intel
Transistors
230 million
Die Size
206 mm²
Generation
Pentium Extreme Edition (Smithfield)
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NetBurst Instruction Set Features

Supported CPU instructions and extensions

The Pentium Extreme Edition 840 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
SSE3
Intel 64
🔌

Pentium Extreme Edition 840 Power & Thermal

TDP and power specifications

The Intel Pentium Extreme Edition 840 has a TDP (Thermal Design Power) of 130W, 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
130W
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Intel Socket 775 Platform & Socket

Compatibility information

The Pentium Extreme Edition 840 uses the Intel Socket 775 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 775
Chipsets
Intel 955X/975X, P/G/Q965, Bearlake(3x)*, Eaglelake(4x)*, nForce 4/500/600/700, VIA PT880 Pro/890/900, VIA P4M800/900, SiS 661FX, 656, 671, ATi RS600, RD600
Package
FC-LGA4
DDR5

Intel Socket 775 Memory Support

RAM compatibility and speeds

Memory support specifications for the Pentium Extreme Edition 840 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 Extreme Edition 840 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, DDR3
Memory Bus
Dual-channel
🖥️

Intel's Pentium Extreme Edition 840 Integrated Graphics

Built-in GPU specifications

The Intel Pentium Extreme Edition 840 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 Extreme Edition 840 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)
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Pentium Extreme Edition 840 Product Information

Release and pricing details

The Intel Pentium Extreme Edition 840 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 Extreme Edition 840 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Apr 2005
Launch Price
$999
Market
Desktop
Status
End-of-life
Part Number
SL8FK

Pentium Extreme Edition 840 Benchmark Scores

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No benchmark data available for this CPU.

About Intel Pentium Extreme Edition 840

When Intel unleashed the Pentium Extreme Edition 840, it represented the pinnacle of dual-core consumer computing in 2005. Built on a 90 nm process and codenamed Smithfield, this chip featured two physical cores capable of handling four threads simultaneously with Intel's Hyper-Threading technology. Its 3.20 GHz clock speed was impressive for the era, targeting enthusiasts who demanded maximum performance for gaming and demanding applications. The Intel Pentium Extreme Edition 840 was a statement piece, designed to dominate the high-end market segment. It required the robust Intel Socket 775 platform, pushing the boundaries of what was possible on the desktop.

Key specifications of this powerhouse processor include:

  1. Dual-core architecture with four processing threads
  2. High base clock speed of 3.20 GHz
  3. Demanding 130W Thermal Design Power (TDP)
  4. Compatibility with the Intel Socket 775 platform
  5. Manufactured on a 90 nm process technology
  6. Premium launch price point of $999 upon release

From a performance perspective, the Intel Pentium Extreme Edition 840 was a monster in its day, particularly in multi-threaded scenarios where its dual cores could flex their muscles. While synthetic benchmarks of the time showed significant leads in applications optimized for multiple threads, real-world gaming benefits were more nuanced. Games that were primarily single-threaded saw less dramatic gains, but the chip's raw clock speed ensured smooth performance. It squarely targeted the enthusiast and gamer market segment, users for whom cost was secondary to having the absolute best available hardware.

Considering an upgrade path from this legacy processor requires a complete platform overhaul, as Socket 775 is long obsolete. Modern equivalents offer exponentially more cores, higher efficiency, and integrated graphics, making the original Extreme Edition a fascinating relic. For retro computing enthusiasts, building a period-accurate high-end system around this CPU can be a rewarding project. However, for any modern gaming or productivity tasks, even entry-level contemporary processors will provide a vastly superior experience with much lower power consumption.

The AMD Equivalent of Pentium Extreme Edition 840

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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