AMD Ryzen Embedded R1505G

The AMD Ryzen Embedded R1505G is a 2-core, 4-thread processor built on the Zen architecture and fabricated on a 14 nm process by GlobalFoundries. It operates at a base clock of 2.40 GHz and a boost clock of 3.30 GHz, with a TDP of 25 W. In the benchmark database, it achieves an average score of 1110, placing it at the 31st percentile among all CPUs tracked. That percentile figure hints at a part that sits in the lower half of the performance spectrum, yet its nearest rivals cluster tightly around the same score, suggesting that the R1505G is competitive within its niche.

Who Should Consider It

The R1505G’s benchmark profile points to a processor for workloads that do not demand high core counts or extreme single-thread speed. Its Cinebench R23 multi-core score of 3225 and single-core score of 455 indicate that lightly threaded tasks—such as office productivity, web browsing, and basic media playback—fall comfortably within its reach. The integrated Radeon Vega 3 graphics provide display output and can handle simple GPU-accelerated tasks, though the absence of dedicated graphics benchmarks means we cannot quantify gaming or rendering performance. For embedded systems where power efficiency is paramount, the 25 W TDP makes this chip a strong candidate. The 31st percentile ranking, however, warns that heavily multi-threaded workloads like video encoding or software compilation will leave this processor trailing the majority of desktop CPUs. Given its “Mobile” market segment and active production status, the R1505G is best suited for compact, power-conscious designs rather than high-performance workstations.

Power and Thermals

With a TDP of 25 W, the R1505G belongs to the low-power class. The 14 nm process from GlobalFoundries, combined with a die size of 148 mm² housing 3,500 million transistors, contributes to its efficiency. This thermal envelope allows for modest cooling solutions—typically a small fan or passive heatsink—in embedded chassis. The processor does not have an unlocked multiplier (multiplierUnlocked: false), meaning users cannot adjust clock speeds to trade power for performance. The base clock of 2.40 GHz and boost of 3.30 GHz are fixed by the platform, so thermal management focuses on sustaining boost behavior under sustained load. The 25 W rating also implies that system designers can allocate a minimal cooling budget, which is a key advantage in space-constrained embedded designs.

Benchmark Performance

Benchmark results across Cinebench versions consistently illustrate the R1505G’s position. In Cinebench R15 multi-core, it scores 324; in R20 multi-core, 1354; and in R23 multi-core, 3225. Single-core scores are 191 in R20 and 455 in R23. These numbers place the processor at the 31st percentile overall, with an average benchmark score of 1110. When compared to its nearest rivals, the deltas are minuscule: the Intel Core i3-7300 and Core i7-5557U each average 1111, putting the R1505G 0.1% behind; the AMD Ryzen 3 3200U and Intel Core i5-3450 average 1108, putting the R1505G 0.2% ahead. Such narrow margins indicate that the R1505G delivers performance statistically equivalent to these four competitors. The multi-core scores, while low in absolute terms, show that the 2-core/4-thread design scales reasonably well, but the single-core numbers reveal the architectural limits of a low-power Zen part.

How It Compares

Intel Core i3-7300: This rival posts an average score of 1111, just one point higher than the R1505G’s 1110. The -0.1% delta means the R1505G trails by a hair, but the difference is within noise. For identical average workloads, the two perform almost identically, though the i3-7300 likely relies on higher clocks while the R1505G brings integrated graphics and a lower TDP.

Intel Core i7-5557U: Also averaging 1111, this mobile part shows the same -0.1% delta. The R1505G’s performance is effectively a tie with this older mobile chip, despite the i7-5557U having a different microarchitecture and generation. The benchmark data suggests that the R1505G can match a previous-generation mainstream mobile CPU.

AMD Ryzen 3 3200U: The Ryzen 3 3200U averages 1108, and the R1505G is 0.2% ahead. This is the only rival where the R1505G leads, though the margin is still sub-percent. Both are low-power AMD parts, and the R1505G’s slight edge in average score suggests a well-tuned implementation.

Intel Core i5-3450: The i5-3450 also averages 1108, and the R1505G again leads by 0.2%. This desktop part from an earlier era is matched by the embedded R1505G, highlighting how far low-power processors have come. The tight clustering of all four rivals around the 1110 mark underscores the R1505G’s position as a mid-low-end performer.

Single-Thread vs Multi-Thread Behavior

The R1505G’s single-core scores—191 in Cinebench R20 and 455 in R23—are modest by modern standards. The multi-core scores—1354 in R20 and 3225 in R23—are substantially higher, demonstrating that the 2-core/4-thread design scales well with multi-threaded workloads. However, the absolute multi-core numbers still place the CPU at the 31st percentile, indicating that while thread scaling is efficient, the base per-thread performance is limited. This split suggests that applications relying on a single fast thread will see lower performance, while those that can utilize four threads will get closer to the processor’s potential. For embedded workloads like control systems or simple web servers, the multi-threaded capability is likely sufficient. The single-thread performance, though low, is adequate for interactive tasks, but it will be a bottleneck for latency-sensitive operations that cannot parallelize.

FAQ

Q: What socket does the AMD Ryzen Embedded R1505G use?

A: It uses AMD Socket FP5.

Q: Does the R1505G support ECC memory?

A: No, ECC memory is not supported.

Q: What is the TDP and what does it imply for cooling?

A: The TDP is 25 W, which is a low-power rating suitable for compact embedded systems with modest cooling.

Q: What integrated graphics does the processor include?

A: It includes Radeon Vega 3 integrated graphics.

Q: How much memory bandwidth does the dual-channel DDR4 controller provide?

A: The dual-channel memory bus supports up to 38.4 GB/s of bandwidth.

Q: When was the processor released?

A: It was released on February 24, 2020.

Platform and Compatibility

The R1505G is built for AMD Socket FP5, a platform used in embedded and mobile systems. It supports dual-channel DDR4 memory, with a maximum bandwidth of 38.4 GB/s, but no ECC. The CPU provides 8 PCIe Gen 3 lanes for connecting peripherals, which is limited compared to desktop platforms but adequate for embedded I/O. The integrated Radeon Vega 3 graphics handles display output without a discrete GPU. The processor is not multiplier-unlocked, so overclocking is not possible. The production status is active, meaning it remains available for new designs. The 14 nm process and 148 mm² die size are key physical characteristics, and the part number YE1505C4T2OFG identifies this specific SKU. For upgrade paths, the FP5 socket is shared with other embedded/mobile parts, but the R1505G’s fixed clocks and lack of an unlocked multiplier mean any performance improvement would require a different processor on the same socket.