AMD Ryzen Embedded R1606G vs Intel Pentium Silver J5040 Comparison

Intel Pentium Silver J5040 and AMD Ryzen Embedded R1606G occupy the same performance percentile (21st) among all CPUs, yet their benchmark profiles diverge sharply. The Intel part wins one of four head-to-head tests, while the AMD part wins three, but the magnitude of those wins tells a more nuanced story than the raw win count. The J5040’s victory in Cinebench R23 multi-core is substantial, while the R1606G’s single-core dominance is even more pronounced, making the choice between them entirely dependent on workload type.

Where Each One Wins

The Intel Pentium Silver J5040 is the clear winner in sustained multi-threaded rendering workloads. Its Cinebench R23 multi-core score of 2739 stands 48.7% above the Ryzen Embedded R1606G’s 1842, a decisive margin that highlights the benefit of four physical cores over two. This advantage appears specifically in the newer R23 benchmark, which is more demanding and better optimized for modern multi-core scaling than older tests. For tasks that can utilize four threads simultaneously—such as video encoding, batch photo processing, or compiling—the J5040 provides a tangible performance edge.

The AMD Ryzen Embedded R1606G wins in every other measured scenario. Its Cinebench R15 multi-core score of 317 beats the J5040’s 276 by 12.9%, and its single-core scores are in a different league entirely. In R15 single-core, the R1606G scores 139 versus 91 for the J5040, a 34.5% advantage. In R23 single-core, the gap widens to 56.5%, with the AMD part scoring 888 versus 386 for the Intel part. This pattern indicates that the R1606G is superior for lightly threaded applications, real-time responsiveness, and any workload where per-core performance matters more than raw thread count. The R1606G also wins the legacy R15 multi-core test, suggesting that its higher clock speeds and newer architecture compensate for the core deficit in older benchmarks.

FAQ

Q: Which CPU has better single-core performance?

A: The AMD Ryzen Embedded R1606G wins decisively. Its Cinebench R23 single-core score is 888, which is 56.5% higher than the Intel Pentium Silver J5040’s 386. The R15 single-core test shows a similar pattern, with the R1606G scoring 139 versus 91 for the J5040, a 34.5% gap.

Q: Which CPU is faster in multi-core workloads?

A: It depends on the benchmark generation. In Cinebench R23 multi-core, the Intel Pentium Silver J5040 wins with 2739 points versus 1842 for the AMD part, a 48.7% lead. However, in the older R15 multi-core test, the AMD Ryzen Embedded R1606G wins 317 to 276, a 12.9% margin.

Q: How do their overall benchmark averages compare?

A: The Intel Pentium Silver J5040 has a slightly higher average benchmark score of 801, compared to 797 for the AMD Ryzen Embedded R1606G. Both CPUs sit at the 21st percentile among all processors, indicating they are statistically near-identical in aggregate performance.

Q: What are the core and thread counts?

A: The Intel Pentium Silver J5040 has 4 cores and 4 threads. The AMD Ryzen Embedded R1606G has 2 cores and 4 threads, using simultaneous multithreading to reach the same thread count as the Intel part.

Q: Which CPU has a higher boost clock?

A: The AMD Ryzen Embedded R1606G boosts to 3.50 GHz, which is higher than the Intel Pentium Silver J5040’s 3.20 GHz boost. The AMD part also has a higher base clock at 2.60 GHz versus 2.00 GHz for the Intel part.

Q: What is the power consumption difference?

A: The Intel Pentium Silver J5040 has a 10 W TDP, while the AMD Ryzen Embedded R1606G has a 25 W TDP. The Intel part consumes significantly less power, which may be relevant for passively cooled or battery-powered designs.

Head-to-Head Benchmarks

The most striking result is the Cinebench R23 single-core test, where the AMD Ryzen Embedded R1606G outscores the Intel Pentium Silver J5040 by 502 points (888 versus 386). This 56.5% delta is the largest margin in any comparison, reflecting the Zen architecture’s superior instructions-per-clock and the R1606G’s higher boost clock of 3.50 GHz versus 3.20 GHz. For any application that is not fully multi-threaded, this gap translates into noticeably faster operation.

The second-largest win also belongs to AMD. In Cinebench R15 single-core, the R1606G scores 139, which is 34.5% higher than the J5040’s 91. This consistency across two different benchmark versions confirms that the single-core advantage is not an artifact of one test but a fundamental architectural difference.

The Intel Pentium Silver J5040’s only victory comes in Cinebench R23 multi-core, where it scores 2739 versus 1842 for the AMD part. The 48.7% delta is substantial and directly attributable to the J5040’s four physical cores versus the R1606G’s two. Interestingly, the tables turn completely in the older Cinebench R15 multi-core test, where the AMD part wins 317 to 276 (12.9%). This reversal suggests that the R15 benchmark does not scale as effectively with four cores, or that the R1606G’s higher clock speeds (2.60 GHz base, 3.50 GHz boost) provide a larger relative benefit in that workload.

The win count stands at 3 for AMD and 1 for Intel, but the average benchmark scores tell a different story: 801 for the J5040 and 797 for the R1606G, a negligible 0.5% difference. This near-tie in aggregate metrics, despite the lopsided head-to-head results, indicates that the benchmarks are weighted toward different strengths—the R23 multi-core test pulls the Intel average up, while the single-core tests pull the AMD average down less dramatically.

Specification Differences

The two CPUs differ in almost every fundamental specification. The Intel Pentium Silver J5040 has 4 cores, while the AMD Ryzen Embedded R1606G has 2 cores, though both support 4 threads. The Intel part has a base clock of 2.00 GHz and a boost clock of 3.20 GHz; the AMD part runs at 2.60 GHz base and 3.50 GHz boost, making it faster in both measures.

Power consumption diverges significantly: the J5040 has a 10 W TDP, while the R1606G has a 25 W TDP. The Intel part uses an Intel BGA 1090 socket, while the AMD part uses an AMD Socket FP5. Memory support is identical in type (DDR4) and bus width (dual-channel), with the same theoretical bandwidth of 38.4 GB/s, and neither supports ECC memory.

PCIe capabilities favor AMD: the R1606G provides Gen 3 with 8 lanes (CPU only), while the J5040 offers only Gen 2 with 6 lanes. Integrated graphics also differ—Intel uses UHD Graphics 605, while AMD uses Radeon Vega 3. The Intel part has a launch MSRP of $161, while the AMD part has no listed launch MSRP. Production status differs as well: the J5040 is end-of-life, while the R1606G is active. The Intel part was released in November 2019, and the AMD part in February 2020.

Architecture Differences

The architectural split is stark. The Intel Pentium Silver J5040 uses the Goldmont Plus architecture on the Gemini Lake codename, built on a 14 nm process at Intel’s foundry. The die size is 93 mm². The AMD Ryzen Embedded R1606G uses the Zen architecture (codename Zen, part of the "Banded Kestrel" generation), fabricated by GlobalFoundries on a 14 nm process, with a die size of 148 mm² and 3,500 million transistors.

Cache hierarchies are completely different. The Intel part has 56 KB of L1 cache per core and 4 MB of shared L2 cache, with no L3 cache. The AMD part has 96 KB of L1 cache per core, 512 KB of L2 cache per core, and 4 MB of shared L3 cache. This gives the R1606G a more robust cache structure, which contributes to its single-core advantage.

The Intel part has 4 cores on a single die with shared L2, while the AMD part has 2 cores with per-core L2 and a shared L3. The AMD architecture also includes simultaneous multithreading, enabling 4 threads from 2 cores, whereas the Intel part relies on 4 physical cores with no SMT. The R1606G’s newer Zen architecture and higher clocks explain its single-core dominance, while the J5040’s four cores explain its R23 multi-core win.

The Verdict

Based strictly on the benchmark data, the AMD Ryzen Embedded R1606G is the better choice for users prioritizing single-core performance and responsiveness. Its 56.5% lead in Cinebench R23 single-core and 34.5% lead in R15 single-core make it the superior processor for everyday tasks, legacy software, and any workload that does not scale perfectly across four threads. The R1606G also wins the older R15 multi-core test, suggesting it handles typical mixed workloads more effectively than the raw core count would imply.

The Intel Pentium Silver J5040 is the better choice for users running modern, fully multi-threaded applications that can exploit four physical cores. Its 48.7% advantage in Cinebench R23 multi-core is the largest single win in the comparison, and its 10 W TDP makes it far more power-efficient than the AMD part’s 25 W. For embedded or mobile designs where thermal headroom is limited and multi-threaded rendering is a primary task, the J5040’s four cores provide a clear benefit.

The aggregate metrics show these CPUs are nearly identical overall—801 versus 797 average benchmark scores, both at the 21st percentile. The R1606G’s three head-to-head wins versus the J5040’s one are counterbalanced by the Intel part’s larger margin of victory. The deciding factor is workload: choose the R1606G for single-threaded speed and lower power per clock, or the J5040 for multi-threaded rendering and minimal power draw. The data does not support a universal winner, only a conditional one based on application demands.