AMD Ryzen 5 PRO 5675U vs AMD Ryzen Embedded V3C14 Comparison

The AMD Ryzen 5 PRO 5675U and AMD Ryzen Embedded V3C14 are both 15 W parts, but they target different segments: one is a mobile processor, the other a desktop-class embedded chip. The benchmark data reveals a fascinating split, where each processor dominates in different types of workloads, making the choice between them highly dependent on the specific application. The Ryzen 5 PRO 5675U, a 6-core/12-thread Zen 3 part, and the Ryzen Embedded V3C14, a 4-core/8-thread Zen 3+ part, are nearly tied in average benchmark score, but their performance profiles diverge sharply.

Head-to-Head Benchmarks

The head-to-head results are a study in contrasts. In the Cinebench R15 tests, the AMD Ryzen 5 PRO 5675U is the clear winner. In the multicore test, it scores 1326 against the V3C14's 1017, a substantial 30.4% advantage. The single-core gap is even more pronounced, with the 5675U scoring 215.5 versus 143 for the V3C14, a 50.7% lead. These are not marginal differences; they represent a generational and architectural performance gulf in this specific benchmark version.

However, the tables turn entirely in the Cinebench R23 tests. Here, the AMD Ryzen Embedded V3C14 scores 10099 in the multicore test, while the Ryzen 5 PRO 5675U manages only 7866.5. This gives the V3C14 a 22.1% advantage, a massive swing from the R15 results. The single-core R23 test is much closer, with the V3C14 winning narrowly at 1425 versus 1387.5, a 2.6% difference. The data presents a confusing picture: the Ryzen 5 PRO wins decisively in R15, but the V3C14 wins decisively in R23 multicore.

This discrepancy is likely a factor of the benchmark versions themselves and how they scale with the hardware. The R15 tests appear to favor the 5675U's higher boost clock and possibly its architecture, while R23, which is a longer and more demanding workload, seems to favor the V3C14's newer Zen 3+ architecture and its more efficient 6 nm process node. The overall benchmark averages reflect this tug-of-war. The Ryzen 5 PRO 5675U has an average benchmark score of 2988, while the V3C14 is close behind at 2921. The nearest rivals for the 5675U include the Intel Xeon E-2334 (2988, 0% delta) and the Intel Core i7-11375H (3018, -1% delta). The V3C14 sits near the Intel Xeon E-2186M (2912, 0.3% delta) and the Intel Core i5-9600KF (2935, -0.5% delta).

Architecture Differences

The architectural differences between these two processors are significant and explain the benchmark behavior. The AMD Ryzen 5 PRO 5675U is built on the Zen 3 architecture, codenamed Cezanne-U, and fabricated on a 7 nm process at TSMC. It has 6 cores and 12 threads, with a base clock of 2.30 GHz and a boost clock of 4.30 GHz. Its cache configuration includes 64 KB of L1 per core, 512 KB of L2 per core, and a substantial 16 MB of shared L3 cache. The chip is built on a die size of 180 mm² and contains 10,700 million transistors.

In contrast, the AMD Ryzen Embedded V3C14 uses the newer Zen 3+ architecture, codenamed Rembrandt, and is manufactured on a more advanced 6 nm process at TSMC. It is a smaller part with only 4 cores and 8 threads. Its clocks are also more conservative: a base clock of 2.30 GHz and a boost clock of 3.80 GHz, which is 0.50 GHz lower than the 5675U. The V3C14 has the same per-core L1 and L2 cache sizes (64 KB and 512 KB), but its shared L3 cache is halved to 8 MB. The transistor count and die size for the V3C14 are not listed in the data.

Memory support is a major differentiator. The 5675U supports DDR4 memory with a dual-channel bus and a memory bandwidth of 51.2 GB/s. It does not support ECC memory. The V3C14, on the other hand, supports the newer DDR5 standard, also with a dual-channel bus, but with a significantly higher memory bandwidth of 76.8 GB/s. Critically, the V3C14 supports ECC memory, a feature essential for embedded and reliability-focused applications. The PCIe capabilities also differ: the 5675U offers Gen 3 with 8 lanes (CPU only), while the V3C14 provides Gen 4 with 20 lanes (CPU only), offering both more bandwidth and more connectivity options.

Where Each One Wins

Based on the benchmark results and architectural features, the strengths of each processor are clear. The AMD Ryzen 5 PRO 5675U wins in legacy workloads and single-threaded tasks that resemble the Cinebench R15 test. Its 50.7% lead in R15 single-core is a massive advantage for applications that are not well-threaded or that rely on older instruction sets. The higher boost clock of 4.30 GHz likely plays a significant role here. For a mobile platform, this chip is also paired with Radeon Vega 7 integrated graphics, making it a more complete package for a laptop where a discrete GPU is not available. Its larger 16 MB L3 cache also benefits workloads that can utilize it.

The AMD Ryzen Embedded V3C14 wins in modern, heavily threaded workloads that resemble Cinebench R23 multicore. Its 22.1% lead here suggests that its Zen 3+ architecture is more efficient at sustaining high performance over time, a critical factor for embedded systems that run 24/7. The 6 nm process node contributes to this efficiency. The V3C14's support for DDR5 memory and ECC is a clear win for server and embedded applications where memory integrity and bandwidth are paramount. The 20 PCIe Gen 4 lanes also make it a superior choice for connecting high-speed peripherals, storage, or network cards. The V3C14 is also classified in the Desktop market segment, while the 5675U is Mobile.

The Verdict

The data dictates a clear split in recommended use cases. For a mobile device, the AMD Ryzen 5 PRO 5675U is the obvious choice. It offers superior single-core performance in legacy benchmarks, has integrated graphics, and its 15 W TDP is suited for a thin-and-light chassis. Its 50.7% margin in Cinebench R15 single-core is the single largest performance gap in the entire comparison and suggests it will feel snappier in everyday, lightly-threaded tasks. The fact that it has 6 cores and 12 threads also provides more parallel processing capability than the 4-core/8-thread V3C14, even if that advantage is not reflected in the R23 multicore test.

For an embedded system requiring reliability and modern features, the AMD Ryzen Embedded V3C14 is the winner. The combination of ECC memory support, DDR5 bandwidth, and 20 PCIe Gen 4 lanes makes it a far more capable platform for networking, storage, or industrial control. Its superior Cinebench R23 multicore score of 10099 indicates it can sustain heavy, continuous compute loads better than the 5675U. The 22.1% lead in that benchmark is the most important metric for a device that is expected to run at full load for extended periods. The V3C14 also has a slightly higher percentile ranking among all CPUs (51st) compared to the 5675U (52nd), though this is a marginal difference.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 5 PRO 5675U has a higher boost clock of 4.30 GHz, compared to the AMD Ryzen Embedded V3C14's 3.80 GHz.

Q: Which processor won the most head-to-head benchmark comparisons?

A: The head-to-head results are tied at 2 wins each. The Ryzen 5 PRO 5675U won the Cinebench R15 multicore and single-core tests, while the Ryzen Embedded V3C14 won the Cinebench R23 multicore and single-core tests.

Q: Does the AMD Ryzen Embedded V3C14 support ECC memory?

A: Yes, the AMD Ryzen Embedded V3C14 supports ECC memory. The AMD Ryzen 5 PRO 5675U does not.

Q: What is the difference in L3 cache size between the two processors?

A: The AMD Ryzen 5 PRO 5675U has 16 MB of shared L3 cache, while the AMD Ryzen Embedded V3C14 has 8 MB of shared L3 cache.

Q: Which processor offers more PCIe lanes?

A: The AMD Ryzen Embedded V3C14 offers 20 PCIe Gen 4 lanes (CPU only), while the AMD Ryzen 5 PRO 5675U offers 8 PCIe Gen 3 lanes (CPU only).

Q: How do their average benchmark scores compare?

A: The AMD Ryzen 5 PRO 5675U has an average benchmark score of 2988, and the AMD Ryzen Embedded V3C14 has an average benchmark score of 2921, a difference of 67 points.