AMD

AMD Phenom II X4 955 (125W)

AMD processor specifications and benchmark scores

4
Cores
4
Threads
โ€”
GHz Boost
125W
TDP
๐Ÿ–ฅ๏ธIntegrated GPU ๐Ÿ›ก๏ธECC Memory

AMD Phenom II X4 955 (125W) Specifications

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Phenom II X4 955 (125W) Core Configuration

Processing cores and threading

The AMD Phenom II X4 955 (125W) features 4 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
4
Threads
4
SMP CPUs
1
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Phenom II X4 955 (125W) Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Phenom II X4 955 (125W) 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 Phenom II X4 955 (125W) by AMD 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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AMD's Phenom II X4 955 (125W) Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Phenom II X4 955 (125W) 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 Phenom II X4 955 (125W)'s cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
128 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
6 MB (shared)
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K10 Architecture & Process

Manufacturing and design details

The AMD Phenom II X4 955 (125W) is built on AMD's 45 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 Phenom II X4 955 (125W) incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Deneb
Process Node
45 nm
Transistors
758 million
Die Size
258 mmยฒ
Generation
Phenom II X4 (Deneb)
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K10 Instruction Set Features

Supported CPU instructions and extensions

The Phenom II X4 955 (125W) by AMD 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
SSE4A
AMD64
AMD-V
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Phenom II X4 955 (125W) Power & Thermal

TDP and power specifications

The AMD Phenom II X4 955 (125W) has a TDP (Thermal Design Power) of 125W, 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
125W
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AMD Socket AM3 Platform & Socket

Compatibility information

The Phenom II X4 955 (125W) uses the AMD Socket AM3 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
AMD Socket AM3
Chipsets
AMD 700 Series, AMD 800 Series, AMD 900 Series, nForce 630a, nForce 700a, nForce 900a
PCIe
Gen 2
Package
ยตPGA
DDR5

AMD Socket AM3 Memory Support

RAM compatibility and speeds

Memory support specifications for the Phenom II X4 955 (125W) 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 Phenom II X4 955 (125W) 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
DDR3
Memory Bus
Dual-channel
Memory Bandwidth
21.3 GB/s
ECC Memory
Supported
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AMD's Phenom II X4 955 (125W) Integrated Graphics

Built-in GPU specifications

The AMD Phenom II X4 955 (125W) 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 Phenom II X4 955 (125W) 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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Phenom II X4 955 (125W) Product Information

Release and pricing details

The AMD Phenom II X4 955 (125W) is manufactured by AMD 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 Phenom II X4 955 (125W) by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Apr 2009
Market
Desktop
Status
End-of-life
Part Number
HDX955FBK4DGIHDX955FBK4DGMHDX955FBGMBOX

Phenom II X4 955 (125W) Benchmark Scores

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No benchmark data available for this CPU.

About AMD Phenom II X4 955 (125W)

The AMD Phenom II X4 955 (125W) CPU remains a solid choice for users seeking reliable performance from a mature architecture. This four-core processor delivers a base clock speed of 3.20 GHz, making it well-suited for multitasking and light to moderate workloads. While not the fastest in its class, the AMD Phenom II X4 955 (125W) provides consistent performance in everyday computing tasks and older applications. Its 6 MB of shared L3 cache helps in data retrieval efficiency, benefiting both productivity and certain types of software. The 125W TDP ensures it runs relatively cool and efficiently, making it a good fit for systems with standard cooling solutions. Even with its age, the AMD Phenom II X4 955 (125W) can still handle modern operating systems with ease. This AMD Phenom II X4 955 (125W) offers a balance between performance and power consumption that appeals to budget-conscious builders. When it comes to gaming, the AMD Phenom II X4 955 (125W) holds up reasonably well for titles from its era and some older games that don't demand the latest CPU features. While it may not be the best option for high-end gaming setups, the AMD Phenom II X4 955 (125W) can still run many games at medium settings with acceptable frame rates. Its four cores and 3.20 GHz base clock provide enough power for less demanding titles and even some newer games with optimized settings. The AMD Phenom II X4 955 (125W) benefits from compatibility with a wide range of motherboards, which enhances its appeal for budget builds and retro gaming. It's important to note that the AMD Phenom II X4 955 (125W) may struggle with more modern, CPU-intensive games that require higher core counts and faster clock speeds. However, for its time and price point, the AMD Phenom II X4 955 (125W) delivers a good value for users looking to build a cost-effective system.

The Intel Equivalent of Phenom II X4 955 (125W)

Looking for a similar processor from Intel? The Intel Core i5-750 offers comparable performance and features in the Intel lineup.

Intel Core i5-750

Intel โ€ข 4 Cores

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