AMD

AMD Athlon II X3 405e

AMD processor specifications and benchmark scores

3
Cores
3
Threads
โ€”
GHz Boost
45W
TDP
๐Ÿ–ฅ๏ธIntegrated GPU

AMD Athlon II X3 405e Specifications

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Athlon II X3 405e Core Configuration

Processing cores and threading

The AMD Athlon II X3 405e features 3 physical cores and 3 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
3
Threads
3
SMP CPUs
1
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Athlon II X3 405e Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Athlon II X3 405e 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 X3 405e by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.3 GHz
Boost Clock
N/A
Multiplier
11.5x
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AMD's Athlon II X3 405e Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Athlon II X3 405e 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 X3 405e'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)
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K10 Architecture & Process

Manufacturing and design details

The AMD Athlon II X3 405e 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 X3 405e incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Rana
Process Node
45 nm
Transistors
300 million
Die Size
169 mmยฒ
Generation
Athlon II X3 (Rana)
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K10 Instruction Set Features

Supported CPU instructions and extensions

The Athlon II X3 405e 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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Athlon II X3 405e Power & Thermal

TDP and power specifications

The AMD Athlon II X3 405e has a TDP (Thermal Design Power) of 45W, 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
45W
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AMD Socket AM3 Platform & Socket

Compatibility information

The Athlon II X3 405e 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 X3 405e 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 X3 405e 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 X3 405e Integrated Graphics

Built-in GPU specifications

The AMD Athlon II X3 405e 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 X3 405e 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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Athlon II X3 405e Product Information

Release and pricing details

The AMD Athlon II X3 405e 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 X3 405e by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Oct 2009
Market
Desktop
Status
End-of-life
Part Number
AD405EHDK32GIAD405EHDGIBOXAD405EHDK32GMAD405EHDGMBOX

Athlon II X3 405e 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 X3 405e 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 #1711 of 1788
114
1%
Max: 14,978

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 X3 405e. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #1711 of 1788
475
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 X3 405e. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #1714 of 1784
66
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 X3 405e after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #1711 of 1788
1,131
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 X3 405e maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #1711 of 1788
159
1%
Max: 20,979
Compare with other CPUs

About AMD Athlon II X3 405e

The AMD Athlon II X3 405e processor, released in October 2009, features three cores and three threads operating at a base clock of 2.30 GHz with a modest 45W TDP on a 45 nm process. In real-world performance expectations, this chip handles basic office tasks like web browsing, document editing, and light multitasking adequately but struggles with modern applications due to its age and lack of hyper-threading. Productivity benchmarks reveal its Cinebench R23 multicore score of 1,131 points and R20 multicore at 475 points, indicating suitability for undemanding workloads rather than intensive rendering or compilation. Single-core performance, with R23 at 159 points and R20 at 66 points, further limits responsiveness in threaded single-task scenarios. The Cinebench R15 multicore result of 114 points underscores its position as an entry-level option from the Athlon II X3 generation. Overall, users can expect reliable operation for legacy systems without power-hungry demands. For productivity-focused environments, the Athlon II X3 405e delivers data-backed efficiency in low-stakes scenarios, evidenced by its consistent Cinebench scores across revisions. Its 45W TDP ensures cooler operation compared to higher-wattage contemporaries, making it viable for always-on office PCs. Cost effectiveness shines in the used market, where this processor often retails for under $20, offering tremendous value for budget rebuilds or HTPC builds. Pairing it with affordable AM3 motherboards amplifies savings without sacrificing basic compatibility. Benchmark data confirms it outperforms dual-core predecessors in multicore tasks by approximately 50% in R15 metrics, justifying its niche appeal today. Enthusiasts note its energy-efficient "e" designation translates to lower electricity costs over time. Motherboard support for the 405e model remains robust within the AM3 ecosystem, compatible with hundreds of boards from AMD's 2009-2011 era including chipsets like 760G and 870. This socket's longevity allows upgrades from earlier Athlon II parts, enhancing system flexibility. Data from benchmark databases shows stable performance across BIOS revisions, minimizing compatibility issues. Cost effectiveness extends here, as AM3 boards are plentiful and inexpensive on secondary markets. In summary, the AMD Athlon II X3 405e provides a data-driven case for economical, low-power computing in non-demanding office setups.

The Intel Equivalent of Athlon II X3 405e

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

View Specs Compare

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