INTEL

Intel Pentium 4 HT 620

Intel processor specifications and benchmark scores

1
Cores
2
Threads
GHz Boost
84W
TDP
Integrated GPU

At a Glance

Intel
Cores / Threads 1C / 2T
Base Clock 2.8 GHz
TDP 84W
Architecture NetBurst
Socket Intel Socket 775
nm
Process 90 nm
Released Feb 2005

Intel Pentium 4 HT 620 Specifications

Pentium 4 HT 620 Core Configuration

Processing cores and threading

The Intel Pentium 4 HT 620 features 1 physical cores and 2 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
2
SMP CPUs
1

Pentium 4 HT 620 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Pentium 4 HT 620 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 HT 620 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.8 GHz
Boost Clock
N/A
Multiplier
14x

Intel's Pentium 4 HT 620 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Pentium 4 HT 620 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 HT 620's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
28 KB
L2 Cache
2 MB

NetBurst Architecture & Process

Manufacturing and design details

The Intel Pentium 4 HT 620 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 4 HT 620 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
NetBurst
Codename
Prescott
Process Node
90 nm
Foundry
Intel
Transistors
169 million
Die Size
135 mm²
Generation
Pentium 4 HT (Prescott)

NetBurst Instruction Set Features

Supported CPU instructions and extensions

The Pentium 4 HT 620 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 4 HT 620 Power & Thermal

TDP and power specifications

The Intel Pentium 4 HT 620 has a TDP (Thermal Design Power) of 84W, 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
84W

Intel Socket 775 Platform & Socket

Compatibility information

The Pentium 4 HT 620 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
PCIe
Gen 2
Package
FC-LGA4
DDR5

Intel Socket 775 Memory Support

RAM compatibility and speeds

Memory support specifications for the Pentium 4 HT 620 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 HT 620 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 4 HT 620 Integrated Graphics

Built-in GPU specifications

The Intel Pentium 4 HT 620 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 HT 620 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 HT 620 Product Information

Release and pricing details

The Intel Pentium 4 HT 620 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 HT 620 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Feb 2005
Market
Desktop
Status
End-of-life
Part Number
SL8AB

Pentium 4 HT 620 Benchmark Scores

No benchmark data available for this CPU.

About Intel Pentium 4 HT 620

The Intel Pentium 4 HT 620 is an end-of-life desktop processor from Intel, built on the NetBurst architecture with the Prescott codename. It has 1 core, 2 threads, a 2.80 GHz base clock, 28 KB of L1 cache, and 2 MB of L2 cache. Its specification set places it on Intel Socket 775 with dual-channel DDR1, DDR2, or DDR3 support, PCIe Gen 2, and an 84 W TDP. The benchmark record is sparse: the benchmark array is empty, the average benchmark score is 0, the percentile versus all CPUs is 50, and the nearest-rivals list is empty.

Platform and Compatibility

The platform story starts with the socket. This CPU uses Intel Socket 775, so any motherboard must provide that socket. The memory support list covers DDR1, DDR2, and DDR3, with a dual-channel memory bus. ECC memory is not supported. The PCIe interface is Gen 2, which defines the expansion connectivity available through the platform.

Integrated graphics are listed in the fact pack as a chipset feature available on certain motherboards, not as an on-die graphics unit. The part number is SL8AB, and the production status is end-of-life. That status means the CPU is no longer in current production, and the release date is 2005-02-19. The market segment is desktop, so the platform assumptions are built around a desktop motherboard rather than a mobile design.

Upgrade path considerations flow directly from the socket and platform generation. Because the CPU is bound to Intel Socket 775, an upgrade on the same board requires a motherboard that supports that socket. The memory generation in use will also be dictated by the motherboard and chipset. The CPU's listed memory support spans DDR1, DDR2, and DDR3 over dual channels, but the exact memory implementation is a platform-level decision. The end-of-life production status reinforces that this is a legacy Socket 775 platform part rather than a path into a current product line.

Who Should Consider It

The workload profile is narrow. One core and two threads at 2.80 GHz fit software that runs primarily on a single thread. Basic office tasks, document editing, and lighter desktop applications can fit that model. For workloads that use exactly two threads, the two logical threads may provide some overlap. But anything that expects more than two hardware threads will be limited by the CPU's available thread count.

Creation workloads such as rendering or video encoding depend heavily on parallel threads. With 1 core and 2 threads, the CPU lacks the parallel resources those workloads expect. The same limitation applies to software designed for more than two threads: it will simply exceed the CPU's thread capacity. The data points to a part for a legacy desktop system with modest, single-threaded duties, not for a new high-throughput build. The end-of-life status and 2005 release date reinforce that this is not a general-purpose recommendation for current workloads.

Benchmark Performance

The fact pack records no benchmark measurements for this CPU. The benchmarks array is empty, and the average benchmark score is 0. The only performance-position field is the percentile versus all CPUs, which is 50. That percentile places the entry at the midpoint of the database's percentile scale, but it is not accompanied by any raw benchmark score or rival delta.

The nearest-rivals list is empty, so there are no exact percentage differences to report. Without rival names, rival scores, or deltaPct values, the data cannot support a statement that this CPU is a certain percentage ahead of or behind another processor. The quantitative benchmark picture is therefore a picture of missing data rather than a measured result. The 50th percentile is a useful midpoint signal, but it cannot be converted into a percentage margin without a score to anchor it.

How It Compares

There are no nearest rivals in the fact pack for this CPU. The nearestRivals field is an empty list, which means no rival names and no deltaPct values exist for this entry. As a result, the Pentium 4 HT 620 cannot be positioned against a named competitor in this database.

The only comparative signal is the 50th percentile position relative to all CPUs. That signal is a general midpoint reading, but it is not a substitute for rival-to-rival benchmark data. In this data record, the CPU simply does not have a comparison group. Any direct-performance comparison to another processor would require benchmark scores that are not present in the fact pack.

Single-Thread vs Multi-Thread Behavior

This CPU has 1 physical core and 2 threads. That asymmetry is the core of its behavior. With only one physical core, two software threads must share the same execution resources. The 2.80 GHz base clock is the only frequency listed; no boost clock is present.

For a single-threaded task, the CPU can dedicate its resources to that thread. The 28 KB L1 cache and 2 MB L2 cache are the memory-side resources available to that thread. For multi-threaded tasks, the CPU can address two logical threads, but it cannot provide the parallel execution of a second independent core. The NetBurst and Prescott design in the fact pack supports this one-core, two-thread arrangement.

The practical consequence is a narrow performance split. Single-threaded work can run at the full 2.80 GHz base clock with access to the cache hierarchy. Two-thread work can see some overlap, but only within one physical core. Work that needs more than two threads will go beyond the available logical thread count. The multi-thread behavior is therefore best described as limited two-thread overlap, not multi-core scaling.

FAQ

Q: What socket does the Intel Pentium 4 HT 620 use?

A: It uses Intel Socket 775.

Q: How many cores and threads does it have?

A: It has 1 core and 2 threads.

Q: Which memory types are supported?

A: DDR1, DDR2, and DDR3 are supported, with a dual-channel memory bus. ECC memory is not supported.

Q: Does the CPU have integrated graphics?

A: Integrated graphics are listed as a chipset feature available on certain motherboards, not as a dedicated on-die GPU.

Q: Is the multiplier unlocked?

A: No, the multiplierUnlocked field is false.

Q: Is this processor still in production?

A: No, production status is end-of-life. The release date is 2005-02-19.

Power and Thermals

The thermal specification is 84 W TDP. That is the figure a cooling solution must be designed around for normal operation. The processor is manufactured on Intel's 90 nm process, with 169 million transistors on a 135 mm² die. Those process and die details are relevant to power behavior: the 84 W TDP class implies a desktop cooling solution rather than a low-power mobile design.

The multiplier is locked, so enthusiast frequency adjustment is not an available feature in the data. Without a boost clock, the 2.80 GHz base clock represents the entire operating frequency envelope. For a Socket 775 desktop build, the cooling implication is straightforward: match the cooler to the 84 W TDP requirement.

The AMD Equivalent of Pentium 4 HT 620

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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