AMD

AMD Athlon 64 FX-51

AMD processor specifications and benchmark scores

1
Cores
1
Threads
โ€”
GHz Boost
89W
TDP

AMD Athlon 64 FX-51 Specifications

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Athlon 64 FX-51 Core Configuration

Processing cores and threading

The AMD Athlon 64 FX-51 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
1
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Athlon 64 FX-51 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Athlon 64 FX-51 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 Athlon 64 FX-51 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.2 GHz
Boost Clock
N/A
Multiplier
11x
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AMD's Athlon 64 FX-51 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Athlon 64 FX-51 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 Athlon 64 FX-51's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
128 KB
L2 Cache
1 MB
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K8 Architecture & Process

Manufacturing and design details

The AMD Athlon 64 FX-51 is built on AMD's 130 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 Athlon 64 FX-51 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K8
Codename
SledgeHammer
Process Node
130 nm
Transistors
105 million
Die Size
193 mmยฒ
Generation
Athlon 64 (SledgeHammer)
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K8 Instruction Set Features

Supported CPU instructions and extensions

The Athlon 64 FX-51 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
AMD64
AMD-V
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Athlon 64 FX-51 Power & Thermal

TDP and power specifications

The AMD Athlon 64 FX-51 has a TDP (Thermal Design Power) of 89W, 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
89W
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AMD Socket 940 Platform & Socket

Compatibility information

The Athlon 64 FX-51 uses the AMD Socket 940 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 940
PCIe
Gen 2
Package
ยตPGA
DDR5

AMD Socket 940 Memory Support

RAM compatibility and speeds

Memory support specifications for the Athlon 64 FX-51 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 Athlon 64 FX-51 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
Memory Bus
Dual-channel
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Athlon 64 FX-51 Product Information

Release and pricing details

The AMD Athlon 64 FX-51 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 Athlon 64 FX-51 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Sep 2003
Market
Desktop
Status
End-of-life
Part Number
ADAFX51CEP5AKADAFX51CEP5AT

Athlon 64 FX-51 Benchmark Scores

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No benchmark data available for this CPU.

The Intel Equivalent of Athlon 64 FX-51

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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