AMD A4-5145M

The AMD A4-5145M is a mobile processor from AMD, built on the Piledriver architecture within the Richland generation, under the A4 product family. It is fabricated on a 32 nm process node, integrates two cores with two threads, and operates at a base clock of 2000.00 MHz with a boost clock of 2.60 GHz. The processor carries a 17 W thermal design power, targets the mobile market segment, and was released on 2013-05-31. Its production status is listed as Active. The chip contains 1,178 million transistors on a 246 mm² die.

Benchmark Performance

The benchmark database records an average benchmark score of 0 for the A4-5145M, indicating that no standardized benchmark results have been logged for this processor. The benchmarks array in the database is empty, so no individual workload scores are available for analysis. The processor's percentile ranking against all CPUs in the database is 50, which places it exactly at the midpoint of the distribution — the median performer.

A 50th percentile ranking means the A4-5145M sits above half of all CPUs tracked in the database and below the other half. This is a central, balanced position rather than an outlier at either extreme. In the absence of logged benchmark scores, the processor's specifications serve as the primary performance indicators. Two cores and two threads limit the processor to two concurrent execution streams, while the base clock of 2000.00 MHz and boost clock of 2.60 GHz define the operating frequency envelope.

The nearestRivals field for the A4-5145M is empty, meaning no direct rival processors have been benchmarked against it in the database. Consequently, no rival names, scores, or percentage deltas can be reported. The only comparative anchor is the 50th percentile standing, which indicates a mid-pack position in the overall CPU population. The lack of benchmark data means the percentile is derived from the processor's specification-based classification rather than from measured workload performance.

Power and Thermals

The thermal design power of the A4-5145M is 17 W, a figure that classifies it within the low-power mobile segment. Processors in this TDP class are typically intended for compact, thin-and-light laptop designs where heat dissipation is constrained. A 17 W TDP implies that a modest cooling solution — a small heat pipe assembly or a compact fan — is generally sufficient to maintain operating temperatures. The data does not specify a cooler, so no claims about specific cooler dimensions or types can be made beyond this qualitative assessment.

The 32 nm process node represents the manufacturing technology used to produce the chip. The die measures 246 mm² and contains 1,178 million transistors, a substantial transistor count for a dual-core mobile part of its generation. This transistor density reflects the integration of additional logic beyond the two CPU cores, including the Radeon HD 8310G integrated graphics and the dual-channel DDR3 memory controller. The 17 W TDP budget must cover both the CPU cores and the integrated graphics, meaning that sustained CPU-intensive workloads may reduce the frequency available to the graphics block, and vice versa. The boost clock of 2.60 GHz represents the upper frequency limit, achievable under favorable thermal and power conditions.

Platform and Compatibility

The A4-5145M uses the AMD Socket FP2 interface, a mobile socket designed for AMD's Richland generation of processors. The platform supports DDR3 memory in a dual-channel configuration, providing two memory channels for data transfer. Error-correcting code (ECC) memory is not supported, which is typical for the mobile consumer segment. The memory bus configuration is specified as dual-channel, but the memory bandwidth figure is not listed in the database.

The processor integrates the Radeon HD 8310G graphics solution, which eliminates the need for a discrete GPU in basic usage scenarios. The integrated graphics share the system memory for frame buffering, a common arrangement in this class of mobile processor. The database does not specify a PCIe configuration for the A4-5145M, so no claims about PCIe lane counts or versions can be made from the available data.

The production status is listed as Active, and the release date of 2013-05-31 places the processor in the Richland generation. The part number AM5145SIE44HL identifies the specific SKU. The clock multiplier is not unlocked, meaning the processor does not support multiplier-based overclocking. The processor's market segment is Mobile, confirming its intended use in laptop and portable systems. The socket type is FP2, which is the platform interface for this mobile part.

FAQ

Q: What socket does the AMD A4-5145M use?

A: The processor uses the AMD Socket FP2 interface.

Q: How many cores and threads does the A4-5145M have?

A: It has 2 cores and 2 threads, meaning each core handles one thread with no simultaneous multi-threading.

Q: What is the TDP of the A4-5145M?

A: The thermal design power is 17 W.

Q: Does the A4-5145M include integrated graphics?

A: Yes, it integrates the Radeon HD 8310G graphics solution.

Q: What memory type does the A4-5145M support?

A: It supports DDR3 memory in a dual-channel configuration, with no ECC support.

Q: When was the A4-5145M released?

A: The release date is 2013-05-31.

How It Compares

The nearestRivals field in the database is empty for the A4-5145M, meaning no direct rival processors have been benchmarked against it. No rival names, scores, or percentage deltas are available for comparison. The only comparative metric is the percentileVsAllCpus value of 50, which positions the A4-5145M at the median of all CPUs tracked in the database.

A percentile of 50 means the A4-5145M outperforms half of all recorded CPUs and is outperformed by the other half. This places it in the middle of the performance spectrum — not a high-end part and not a low-end part. The 2-core, 2-thread configuration with a boost clock of 2.60 GHz is consistent with an entry-to-mid-level mobile processor of its generation. The empty rivals list also means that the database has not yet established benchmark scores for this processor, which is consistent with the average benchmark score of 0. The processor's standing is therefore defined by its specification-based percentile rather than by head-to-head benchmark comparisons.

Single-Thread vs Multi-Thread Behavior

The A4-5145M's thread configuration is straightforward: 2 cores and 2 threads, with no additional logical threads per core. This means the processor can handle two threads simultaneously, one per core. For single-threaded workloads, the processor can dedicate all resources to one core, allowing the boost clock of 2.60 GHz to be reached. The base clock of 2000.00 MHz represents the guaranteed frequency under sustained load, when both cores are active.

The difference between the boost clock of 2.60 GHz and the base clock of 2000.00 MHz provides frequency headroom for burst workloads. Single-threaded applications — such as older games, spreadsheet calculations, or lightly threaded productivity tools — benefit from the higher boost frequency. Multi-threaded applications that can utilize both cores will run at a lower sustained frequency but will still benefit from having two physical cores rather than one. The absence of simultaneous multi-threading means the processor cannot extract additional parallelism from a single core.

The cache hierarchy consists of 128 KB of L1 cache per core and 512 KB of L2 cache per core. No L3 cache is listed in the database. This means that shared data access between cores must go through the memory controller, which could add latency in multi-threaded workloads that share data between cores. The dual-channel DDR3 memory support helps mitigate this by providing adequate memory bandwidth, but the absence of L3 cache is a structural characteristic for workloads with high data-sharing requirements.

The integrated Radeon HD 8310G graphics block shares the same die and the 17 W power envelope as the CPU cores. When the GPU is active — for example, during video playback or light gaming — the CPU's available power budget is reduced, which can lower the achievable boost frequency. The 17 W TDP must cover both the CPU and GPU, so the actual CPU frequency in mixed workloads depends on the power distribution between the two blocks. This is a common trade-off in low-power mobile processors, where the integrated graphics and CPU compete for the same thermal and power headroom.