AMD A8-3520M

The AMD A8-3520M is a 4-core, 4-thread mobile processor from the Llano generation, built on the K10 architecture and a 32 nm process node. It operates with a base clock of 1600 MHz and a boost clock of 2500 MHz, and it sits at the 8th percentile of all CPUs in the database, indicating it is a low-end part by modern standards. Its average benchmark score of 471 places it in a tightly contested cluster of rivals, where performance differences are measured in fractions of a percent rather than meaningful margins.

How It Comps

The closest rival is the AMD A8-5550M, which posts an average score of 472. The A8-3520M trails by a negligible 0.2%, meaning the two chips are effectively interchangeable in real-world workloads. Neither part offers a tangible advantage over the other, and any difference you might notice would be within run-to-run benchmark variance.

Against the Intel Core i7-640LM, the A8-3520M scores 687 in Geekbench multi-core versus the Intel's 470 average, giving the AMD part a 0.2% lead in the aggregate benchmark. This is another statistical dead heat. The Intel part is a low-voltage dual-core, while the AMD part is a quad-core, but the overall average scores suggest the extra cores do not translate into a decisive win.

The AMD A8-4500M is the next rival, with an average score of 469. The A8-3520M is 0.5% ahead here. Both are Llano-generation quad-core mobile parts, and the data shows they belong to the same performance tier. You would be hard-pressed to tell them apart in everyday use.

Finally, the AMD Phenom II X3 720 averages 468, which puts the A8-3520M 0.6% ahead. Interestingly, the Phenom II X3 is a desktop triple-core part, yet its older architecture and lower efficiency bring it down to the same level as this mobile quad-core. The A8-3520M wins, but the margin is trivial.

Who Should Consider It

The A8-3520M is not a processor for demanding workloads. Its Geekbench multi-core score of 687 and single-core score of 255 place it firmly in the entry-level mobile segment. For basic office tasks — word processing, spreadsheets, web browsing with a modest number of tabs — the data indicates it is adequate, provided you keep expectations low.

Gaming is not a realistic use case for the CPU itself, but the integrated Radeon HD 6620G graphics means the platform can handle very light, older titles at low settings and resolutions. The CPU's low single-core score of 255 will bottleneck most modern games, which rely heavily on single-thread performance. This is a machine for email, video playback, and lightweight productivity, not for content creation or software compilation.

For content creation, the 4-core, 4-thread configuration and 128 KB of L1 cache per core (1 MB L2 per core) provide some parallel capacity, but the low 1600 MHz base clock and 2500 MHz boost clock severely limit throughput. Multi-threaded applications like video encoding will run, but slowly. The 8th percentile ranking against all CPUs reinforces that this is a processor for basic computing, not for creative professionals.

Benchmark Performance

The Geekbench multi-core score of 687 is the headline number for this processor. It shows that the A8-3520M can utilize all four cores simultaneously, but the absolute value is low. The single-core score of 255 is significantly weaker, which is typical of the K10 architecture and its modest clock speeds.

Against the nearest rivals, the deltas are uniformly tiny. The A8-3520M is 0.2% behind the A8-5550M, 0.2% ahead of the Core i7-640LM, 0.5% ahead of the A8-4500M, and 0.6% ahead of the Phenom II X3 720. These numbers tell a clear story: the A8-3520M sits at the exact center of a performance cluster where no part has a meaningful edge. The average benchmark score of 471 aligns almost perfectly with the 472, 470, 469, and 468 scores of its rivals.

The gap between the multi-core score (687) and the single-core score (255) is a ratio of roughly 2.7:1. This indicates that the processor scales reasonably well across cores, but the absolute single-thread performance is the limiting factor for most software. In any workload that is not heavily parallelized, the A8-3520M will feel sluggish.

FAQ

Q: How many cores and threads does the AMD A8-3520M have?

A: It has 4 cores and 4 threads, with no hyper-threading, so each core handles exactly one thread.

Q: What is the boost clock speed of this processor?

A: The base clock is 1600 MHz, and it can boost up to 2500 MHz when thermal and power conditions allow.

Q: Does this CPU support ECC memory?

A: No, ECC memory is not supported. It uses dual-channel DDR3 memory.

Q: What integrated graphics does it include?

A: It features the Radeon HD 6620G, which is an integrated graphics solution suitable for basic display output and very light gaming.

Q: What socket does the A8-3520M use?

A: It uses the AMD Socket FS1, which is a mobile-specific socket.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, so overclocking is not an official feature.

Power and Thermals

The A8-3520M has a TDP of 35 watts, which classifies it as a mainstream mobile processor rather than an ultra-low-power part. This TDP level means it requires a cooling solution designed for moderate heat output — a standard laptop heat pipe and fan assembly, not a passive cooler. The 35 W TDP is a middle ground: it is low enough for thin-and-light laptops from its era, but high enough that sustained load will produce noticeable heat.

Given the 32 nm process node and the K10 architecture, the 35 W TDP is reasonable for a quad-core part of this vintage. The integrated Radeon HD 6620G shares the same thermal budget, meaning the CPU and GPU must coexist within that 35 W envelope. Under combined CPU and GPU load, the processor will likely throttle its boost clock below 2500 MHz to stay within thermal limits.

For cooling, a capable air cooler with a heat pipe is sufficient. There is no need for exotic liquid cooling or oversized heatsinks, as the 35 W TDP is well within the range of standard mobile cooling designs. The die size of 228 mm² with 1,178 million transistors is relatively large, but the power density is manageable at these clock speeds.

Single-Thread vs Multi-Thread Behavior

The single-core Geekbench score of 255 is the weakest aspect of this processor. This places it far below modern entry-level chips and indicates poor performance in tasks like web browsing with complex JavaScript, spreadsheet recalculation, or any application that relies on a single thread. The 1600 MHz base clock is low, and even the 2500 MHz boost clock cannot compensate for the architectural limitations of K10.

In contrast, the multi-core score of 687 is roughly 2.7 times higher than the single-core score, showing that the processor can effectively distribute workloads across its four cores. Applications that are well-threaded — such as video transcoding, file compression, or rendering — will see better utilization of the available hardware. However, the absolute multi-core score is still low, so even well-parallelized tasks will complete slowly compared to any modern processor.

The practical implication is that this CPU favors multi-threaded batch workloads over interactive single-threaded use. If you run a long encoding job, the system will churn through it using all four cores, but the user interface will remain responsive only because the OS can schedule background tasks on other cores. For everyday use, the single-thread deficiency is the dominant factor, making the A8-3520M feel dated and slow. The 8th percentile ranking against all CPUs confirms that this is a processor for basic, non-demanding tasks, and its benchmark splits reflect that reality.