AMD Ryzen Embedded V1605B

The AMD Ryzen Embedded V1605B is a 4-core, 8-thread desktop processor built on the 14 nm Zen architecture, with a base clock of 2.00 GHz and a boost clock of 3.60 GHz. It carries a 15 W TDP and an integrated Radeon Vega 8 graphics solution, positioning it as a compact computing option within the embedded market segment.

Platform and Compatibility

The processor uses the AMD Socket FP5, a platform designed specifically for embedded and mini-PC form factors. Memory support is limited to DDR4, operating through a dual-channel memory bus; ECC memory is not supported, which narrows its suitability for error-critical server or workstation roles. The architecture is Zen, codenamed "Great Horned Owl," representing the first-generation Zen cores from AMD. The processor is manufactured by GlobalFoundries on a 14 nm process, with a transistor count of 4,950 million and a die size of 210 mm². The cache hierarchy is structured as 128 KB of L1 per core, 512 KB of L2 per core, and a shared 2 MB L3 cache. The production status remains active, with a release date of February 20, 2018. The multiplier is locked, meaning overclocking is not an intended feature. The PCIe support is not specified in the data, so expansion capabilities remain undefined. The upgrade path is inherently restricted by the FP5 socket, which is tied to embedded boards rather than mainstream consumer motherboards. The integrated Radeon Vega 8 GPU provides a baseline for display output without a discrete graphics card, which is typical for this class of processor. The 15 W TDP indicates a low-power design, suitable for passively cooled or small-form-factor systems. The lack of ECC and the specific socket make this a niche part, aimed at industrial or specialized applications rather than general desktop builds.

Who Should Consider It

The benchmark data positions this processor at the 41st percentile among all CPUs, indicating it outperforms roughly two-fifths of the tested population. For gaming, the integrated Radeon Vega 8 GPU handles light titles, but the single-core score of 806 in Cinebench R23 suggests that demanding modern game engines, which rely heavily on single-thread performance, will be a limiting factor. Creation workloads, such as video editing or 3D rendering, benefit from multi-threaded performance; the R23 multi-core score of 5714 shows capability for moderate rendering tasks, though it lags behind higher-tier desktop parts. Office productivity and web browsing are well within its grasp, as the dual-channel DDR4 support and 8 threads provide smooth multitasking for typical business applications. The embedded nature of the chip, with its 15 W TDP and active production status, makes it a candidate for digital signage, thin clients, or fanless industrial PCs. Users who require ECC memory or high-bandwidth PCIe peripherals should look elsewhere, as those features are absent or unspecified. The processor is a poor fit for enthusiasts seeking overclocking, given the locked multiplier. For workloads that are lightly threaded, the 3.60 GHz boost clock offers reasonable responsiveness, but the Zen architecture's efficiency at low power is the primary draw here.

Single-Thread vs Multi-Thread Behavior

The single-thread scores are 81 in Cinebench R15, 338 in R20, and 806 in R23, while the multi-thread scores are 575, 2399, and 5714 respectively. The ratio between multi-thread and single-thread performance is roughly 7:1 in R23, which is lower than the theoretical 8:1 from 8 threads, indicating some scaling inefficiency. This inefficiency is typical for a 15 W TDP part, where thermal and power constraints limit sustained all-core boost frequencies. In single-thread workloads, the 3.60 GHz boost clock provides a solid baseline for legacy applications, spreadsheet macros, or lightweight coding tasks. The multi-thread results, however, show that the processor can handle parallel tasks like batch photo processing or software compilation, but the 2 MB shared L3 cache may cause contention in cache-sensitive workloads. For real-world use, this split means that an office user will perceive good responsiveness in single-threaded applications, while a video editor will see slower renders compared to a desktop chip with more cache and higher power budget. The benchmark scores across all three Cinebench versions show consistent scaling, with R23 multi-core being 2.38 times higher than R15 multi-core, reflecting the test's increased workload size. The single-core R23 score of 806 is modest, placing it below many modern desktop CPUs, but the embedded focus prioritizes efficiency over raw speed. Users running heavily threaded workloads will find the 8 threads useful, but the 15 W envelope caps the sustained performance. The data suggests a balanced design for low-power multitasking, not a high-performance computing tool.

How It Compares

The nearest rival, Intel Core i5-4670K, has an average score of 1654, which is 0.1% higher than the V1605B's average of 1652. This puts the two processors on nearly identical footing in overall benchmark performance, despite the Intel part being a desktop enthusiast chip with a higher TDP. The i5-4670K likely achieves parity through higher clock speeds, but the V1605B counters with more threads, making them comparable in mixed workloads.

The Intel Core i5-5675R, with an average score of 1648, is 0.2% lower than the V1605B. This difference is negligible, meaning the two parts trade blows depending on the specific test. The i5-5675R features an integrated GPU, similar to the V1605B, but the V1605B's lower TDP makes it more attractive for compact systems.

The Intel Core i7-980X, a six-core processor from an older generation, scores 1647 on average, which is 0.3% lower than the V1605B. Despite having fewer threads (6 cores, 12 threads), the i7-980X's higher power draw and older architecture result in a near-tie with the embedded AMD part. This underscores the efficiency gains of the Zen architecture.

The AMD Ryzen 5 PRO 2500U, a mobile part, has an average score of 1657, which is 0.3% higher than the V1605B. This rival is 0.3% faster, but both share the same Zen architecture and similar 15 W-class designs, making them close cousins. The V1605B's desktop market segment may offer better sustained cooling, but the benchmark difference is within noise.

Benchmark Performance

The average benchmark score for the V1605B is 1652, placing it at the 41st percentile of all CPUs. The closest rival, Intel Core i5-4670K, scores 1654, yielding a delta of -0.1%, meaning the V1605B is essentially tied with a popular desktop CPU from 2013. The Intel Core i5-5675R scores 1648, giving the V1605B a +0.2% advantage; this is a negligible lead that does not translate to perceptible real-world differences. The Intel Core i7-980X scores 1647, and the V1605B leads it by 0.3%, which is a modest margin for a processor with half the cores and a fraction of the power budget. The AMD Ryzen 5 PRO 2500U scores 1657, putting the V1605B 0.3% behind; this is the largest gap among the rivals, but still within a 1% band of parity. In Cinebench R23, the multi-core score of 5714 and single-core score of 806 show a 7.09x scaling factor, which is below the ideal 8x. In R20, the multi-core score of 2399 and single-core of 338 yield a 7.10x ratio, similar to R23. In R15, the multi-core score of 575 and single-core of 81 produce a 7.10x ratio as well, confirming consistent scaling behavior across test versions. The percentile rank of 41 means that 59% of CPUs in the database outperform it, but the embedded focus on low power and compact size justifies the performance trade-off. The delta percentages against the nearest rivals, ranging from -0.3% to +0.3%, demonstrate that this processor sits in a tightly contested performance tier where architectural differences and power limits are more relevant than raw scores.

FAQ

Q: What is the average benchmark score for the AMD Ryzen Embedded V1605B?

A: The average benchmark score is 1652, placing it at the 41st percentile among all CPUs.

Q: How does the V1605B compare to the Intel Core i5-4670K?

A: The V1605B has an average score of 1652, which is 0.1% lower than the i5-4670K's 1654, making them statistically equivalent.

Q: Does the V1605B support ECC memory?

A: No, ECC memory is not supported. The processor only supports DDR4 memory through a dual-channel bus.

Q: What is the boost clock speed of the V1605B?

A: The boost clock is 3.60 GHz, while the base clock is 2.00 GHz.

Q: Which integrated GPU is included with the V1605B?

A: The processor includes a Radeon Vega 8 integrated graphics solution.

Q: Is the V1605B faster or slower than the AMD Ryzen 5 PRO 2500U?

A: The V1605B is 0.3% slower, with an average score of 1652 versus 1657 for the Ryzen 5 PRO 2500U.