AMD Ryzen Embedded V3C18I vs Intel Xeon E5-1680 v4 Comparison

The Verdict

The recorded data presents a clear, if narrow, overall winner: the Intel Xeon E5-1680 v4 takes all six head-to-head Cinebench comparisons, with each win landing within a tight 2.3% to 2.5% margin. The AMD Ryzen Embedded V3C18I trails by 2.5% in four of six tests, and by 2.3% in the remaining two. The average benchmark score reinforces this: the Intel part sits at 3494, while the AMD chip records 3406, a difference of roughly 2.5% in the Intel favor. The Intel Xeon also holds a slightly higher percentile rank among all CPUs, at 55 versus 54 for the AMD processor.

However, the verdict is not a simple recommendation of one part over the other. The AMD Ryzen Embedded V3C18I draws only 15 watts of thermal design power, while the Intel Xeon E5-1680 v4 consumes 140 watts. That is a massive disparity that the benchmark scores do not reflect. For workloads where power draw and heat output are the primary constraints, the AMD part is clearly the better fit, as its performance is within a few percentage points of a chip that uses over nine times the power. For users with ample cooling and a power budget that can accommodate a 140-watt processor, the Intel Xeon offers the higher raw scores in every recorded test. The choice hinges entirely on whether the absolute performance ceiling or the efficiency envelope matters more.

Architecture Differences

The two processors come from different design philosophies and fabrication eras. The AMD Ryzen Embedded V3C18I uses the Zen 3+ architecture, codenamed Rembrandt, built on a 6 nm process at TSMC. The Intel Xeon E5-1680 v4 uses the Broadwell architecture, specifically Broadwell-EP, manufactured on Intel's 14 nm process. The AMD part is newer, with a release date of September 26, 2022, while the Intel chip launched on June 19, 2016. The AMD processor remains in active production, whereas the Intel Xeon is listed as end-of-life.

Both chips feature 8 cores and 16 threads, so the thread count is identical. The base and boost clocks differ notably: the AMD chip runs at a base of 1900 MHz and boosts to 3.80 GHz, while the Intel part has a base of 3.40 GHz and boosts to 4.00 GHz. The Intel chip has higher clocks across the board, which helps explain its lead in single-threaded tests.

Cache layouts diverge as well. The AMD chip has 64 KB of L1 per core and 512 KB of L2 per core, with 16 MB of shared L3. The Intel chip also has 64 KB of L1 per core, but only 256 KB of L2 per core, while its shared L3 is larger at 20 MB. Memory support differs: the AMD part uses DDR5 in a dual-channel configuration, while the Intel part uses DDR4 in a quad-channel setup. Both achieve the identical memory bandwidth of 76.8 GB/s according to the database. Both support ECC memory.

The sockets are incompatible. AMD uses Socket FP7, while Intel uses Socket 2011-3. PCIe capabilities also differ: the AMD chip provides Gen 4 with 20 lanes from the CPU, while the Intel chip offers Gen 3 with 40 lanes. The Intel part is larger physically, with a die size of 246 mm² and 3,400 million transistors, while the AMD chip has no recorded die size or transistor count. Neither processor has integrated graphics recorded, and both are locked multipliers.

Head-to-Head Benchmarks

The head-to-head results are consistent across all six Cinebench workloads. In Cinebench R15 multicore, the Intel Xeon E5-1680 v4 scores 1217 against the AMD Ryzen Embedded V3C18I's 1187, a 2.5% delta in favor of Intel. In R15 singlecore, Intel records 171 versus AMD's 167, a 2.3% lead. The R20 multicore test shows Intel at 5073 and AMD at 4946, again 2.5% apart. R20 singlecore gives Intel 716 and AMD 698, a 2.5% gap. R23 multicore yields 12080 for Intel and 11777 for AMD, a 2.5% margin. Finally, R23 singlecore shows Intel at 1705 and AMD at 1662, also 2.5% apart.

The pattern is remarkably uniform. The Intel chip wins every test by essentially the same margin, regardless of whether the workload is single-threaded or multi-threaded. This suggests that the advantage is not tied to core count or scaling behavior, but rather to the higher clock speeds and possibly the larger L3 cache. The AMD chip, despite its newer architecture and smaller process node, cannot overcome the clock deficit. Its base clock is 1.5 GHz lower, and its boost clock is 0.2 GHz lower. The data shows that the Intel part maintains a consistent edge across all recorded workloads.

The average benchmark scores place these chips among different rival sets. The AMD chip's nearest rivals include the Intel Xeon E-2236 at 3410 average score, the Intel Xeon E-2146G at 3410, the AMD Ryzen 5 PRO 7530U at 3394, and the Intel Core i7-10875H at 3432. The delta percentages are tiny, ranging from -0.8% to 0.4%. The Intel Xeon E5-1680 v4 sits near the Intel Xeon E-2246G at 3492, the Intel Core i9-9900T at 3499, the Intel Xeon E-2176G at 3502, and the Intel Xeon D-1732TE at 3486. Again, the deltas are within 0.2% of zero. This indicates that both chips are tightly clustered with their respective competitors.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Xeon E5-1680 v4 wins every single-core Cinebench test. In R15, it scores 171 versus 167 for the AMD part, a 2.3% lead. In R20, it scores 716 versus 698, and in R23, it scores 1705 versus 1662, both 2.5% ahead.

Q: How do the multi-core scores compare?

A: The Intel chip wins all three multi-core tests. Cinebench R15 gives Intel 1217 and AMD 1187, R20 gives 5073 versus 4946, and R23 gives 12080 versus 11777. Each margin is 2.5% in favor of Intel.

Q: What is the power consumption difference?

A: The AMD Ryzen Embedded V3C18I has a thermal design power of 15 watts, while the Intel Xeon E5-1680 v4 has a TDP of 140 watts. The Intel chip draws substantially more power while delivering only about 2.5% higher scores.

Q: Are the memory bandwidth figures different?

A: No. Both processors record the same memory bandwidth of 76.8 GB/s. However, the AMD chip uses dual-channel DDR5, while the Intel chip uses quad-channel DDR4.

Q: Which processor is still in production?

A: The AMD Ryzen Embedded V3C18I is listed as active in production. The Intel Xeon E5-1680 v4 is listed as end-of-life, meaning it is no longer actively produced.

Q: Do both processors support ECC memory?

A: Yes. The database records ECC memory support as true for both the AMD Ryzen Embedded V3C18I and the Intel Xeon E5-1680 v4.

Where Each One Wins

The Intel Xeon E5-1680 v4 wins every benchmark in the recorded data. Its advantage is uniform across single-core and multi-core workloads, with deltas of 2.3% to 2.5%. This makes it the clear choice for applications that rely purely on Cinebench-style rendering performance and where power consumption is not a limiting factor. Its higher base clock of 3.40 GHz and boost clock of 4.00 GHz, combined with a larger 20 MB L3 cache, appear to give it a consistent edge. The chip also offers 40 PCIe Gen 3 lanes, which is double the lane count of the AMD part, potentially benefiting systems with many expansion cards. Its quad-channel DDR4 memory interface matches the AMD chip's bandwidth despite the older memory standard.

The AMD Ryzen Embedded V3C18I wins the efficiency comparison by a wide margin. Its 15-watt TDP is a fraction of the Intel chip's 140-watt TDP, yet its performance deficit is only around 2.5%. For embedded or compact systems where cooling is limited, power delivery is constrained, or energy costs are a concern, the AMD part is the rational selection. It also uses newer DDR5 memory and PCIe Gen 4, which may offer advantages in specific workloads that are not captured by the Cinebench suite. Its 6 nm process node from TSMC suggests a more modern manufacturing approach, and it remains in active production, which matters for long-term supply reliability. The AMD chip also has a smaller physical footprint potential due to the FP7 socket, though the database does not record cooler or board size details.

The use-case split is straightforward. For a stationary workstation with robust cooling and a stable power supply, the Intel Xeon E5-1680 v4 delivers the highest recorded scores. For a fanless or low-power embedded deployment, a compact industrial PC, or any scenario where the 15-watt TDP is a hard requirement, the AMD Ryzen Embedded V3C18I is the only sensible pick, as it sacrifices only a small percentage of performance while reducing power draw by an order of magnitude. The data does not support calling either chip a universal winner; it supports matching the chip to the physical and thermal constraints of the deployment.