AMD

AMD Athlon II X2 255

AMD processor specifications and benchmark scores

2
Cores
2
Threads
โ€”
GHz Boost
65W
TDP
๐Ÿ–ฅ๏ธIntegrated GPU

AMD Athlon II X2 255 Specifications

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Athlon II X2 255 Core Configuration

Processing cores and threading

The AMD Athlon II X2 255 features 2 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
2
Threads
2
SMP CPUs
1
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Athlon II X2 255 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Athlon II X2 255 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 II X2 255 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.1 GHz
Boost Clock
N/A
Multiplier
15.5x
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AMD's Athlon II X2 255 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Athlon II X2 255 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 II X2 255'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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K10 Architecture & Process

Manufacturing and design details

The AMD Athlon II X2 255 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 Athlon II X2 255 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Regor
Process Node
45 nm
Transistors
410 million
Die Size
117 mmยฒ
Generation
Athlon II X2 (Regor)
๐Ÿ”ข

K10 Instruction Set Features

Supported CPU instructions and extensions

The Athlon II X2 255 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
๐Ÿ”Œ

Athlon II X2 255 Power & Thermal

TDP and power specifications

The AMD Athlon II X2 255 has a TDP (Thermal Design Power) of 65W, 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
65W
๐Ÿ”ง

AMD Socket AM3 Platform & Socket

Compatibility information

The Athlon II X2 255 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
PCIe
Gen 2
Package
ยตPGA
DDR5

AMD Socket AM3 Memory Support

RAM compatibility and speeds

Memory support specifications for the Athlon II X2 255 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 II X2 255 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
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AMD's Athlon II X2 255 Integrated Graphics

Built-in GPU specifications

The AMD Athlon II X2 255 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 Athlon II X2 255 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)
๐Ÿ“ฆ

Athlon II X2 255 Product Information

Release and pricing details

The AMD Athlon II X2 255 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 II X2 255 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jan 2010
Market
Desktop
Status
End-of-life
Part Number
ADX255OCK23GQ

Athlon II X2 255 Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how AMD Athlon II X2 255 performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #1739 of 1788
103
1%
Max: 14,978
Compare with other CPUs

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on AMD Athlon II X2 255. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #1739 of 1788
431
1%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of AMD Athlon II X2 255. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #1740 of 1784
60
1%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of AMD Athlon II X2 255 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #1740 of 1788
1,027
1%
Max: 148,601
Compare with other CPUs

๐Ÿ† Top 5 Performers

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Athlon II X2 255 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #1737 of 1788
145
1%
Max: 20,979
Compare with other CPUs

About AMD Athlon II X2 255

The AMD Athlon II X2 255 processor, a dual-core CPU from 2010, delivers a baseline computing experience for basic tasks. With its 3.1 GHz clock speed, this Regor-core chip can handle web browsing, office applications, and media playback, though demanding software will reveal its age. For users considering the Athlon II X2, workstation performance is limited; multitasking is confined to lighter workloads as the two threads struggle with modern multi-threaded applications. Its cost-effectiveness is now primarily historical, as this processor is largely obsolete for new builds, but it can be a frugal upgrade for very old AM3 systems. Compatibility is a key consideration, as the Athlon II 255 requires a Socket AM3 motherboard and DDR3 memory, creating a platform that is difficult to expand with modern components. Ultimately, the Athlon II X2 255's utility today is niche, serving as a stopgap solution where absolute minimum cost is the only priority.

When evaluating the Athlon II II X2 255 against modern entry-level chips, its performance benchmarks, like a Cinebench R23 multi-core score around 1027, illustrate a significant generational gap. For any task beyond the simplest computing, the Athlon 255 processor will feel sluggish, especially when compared to even the most affordable contemporary CPUs that offer more cores and superior efficiency. The thermal design power of 65W is respectable, but modern processors achieve far more performance per watt, making the older AMD chip less attractive from an energy standpoint. Prospective users must carefully assess their software needs, as the dual-core architecture of the AMD Athlon II X2 255 is a major bottleneck for today's applications and operating systems. While it served as a capable budget option in its time, the Athlon II X2 255 now represents a technological era whose performance expectations have been vastly surpassed.

The Intel Equivalent of Athlon II X2 255

Looking for a similar processor from Intel? The Intel Core i5-670 offers comparable performance and features in the Intel lineup.

Intel Core i5-670

Intel โ€ข 2 Cores

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