AMD Ryzen Embedded V1756B vs Intel Core i5-8400H Comparison

Head-to-Head Benchmarks

The recorded data is unambiguous: the AMD Ryzen Embedded V1756B wins every single benchmark in the head-to-head comparison, taking all six tests. The Intel Core i5-8400H does not secure a single victory in any of the measured workloads.

In Cinebench R15 multicore, the AMD part scores 692 against the Intel part's 644, a 6.9% advantage. The single-core R15 test shows a similar pattern: AMD scores 97, Intel scores 90, a 7.2% lead for the Ryzen part. That 7.2% delta is the largest margin recorded in the entire head-to-head set.

Moving to Cinebench R20, the AMD Ryzen Embedded V1756B posts 2884 in multicore versus 2684 for the Intel Core i5-8400H, again a 6.9% gap. The single-core R20 test yields 406 versus 378, another 6.9% difference. The consistency of these deltas is notable: the AMD chip maintains almost exactly the same relative advantage across both R15 and R20 multicore and single-core tests.

Cinebench R23 follows the identical pattern. The AMD part scores 6867 in multicore, the Intel part 6392, a 6.9% lead. In single-core R23, the AMD part scores 969 versus 902, also 6.9% ahead. The benchmark data shows a remarkably uniform performance margin across all three versions of Cinebench, suggesting that the advantage is structural rather than workload-specific.

The aggregate picture reinforces this. The Intel Core i5-8400H has an average benchmark score of 2003, while the AMD Ryzen Embedded V1756B averages 1986. Interestingly, the AMD chip wins every individual test but has a lower average score, a situation explained by the fact that the Intel part also has Geekbench results in its set. The Intel part scores 3656 in Geekbench multicore and 1281 in single-core, tests that are not present in the AMD part's benchmark list. Those Geekbench numbers pull the Intel average upward despite its losses in the Cinebench family.

Looking at the nearest rivals in the database, both chips sit in a very tight cluster. The Intel Core i5-8400H is essentially tied with the AMD Ryzen 7 2800H, which averages 2002, a delta of 0.1%. It is also within 0.1% of the Intel Core i5-8400T (2001) and the Intel Xeon D-1712TR (2004). The AMD Ryzen Embedded V1756B sits near the Intel Core i5-8279U (1987, 0% delta), the Intel Xeon E3-1585L v5 (1989, -0.2%), and the AMD Ryzen 5 1500X (1992, -0.3%). Neither chip is an outlier; both are firmly in the mid-pack of the database, with the Intel part at the 45th percentile and the AMD part at the 44th percentile of all CPUs.

The Verdict

The benchmark results indicate a clear, if modest, winner for the AMD Ryzen Embedded V1756B. It leads in every Cinebench test, with margins between 6.9% and 7.2%. For workloads that rely on sustained multi-threaded rendering or compilation, the AMD chip offers a consistent edge. The single-core advantage is equally present, meaning even lightly threaded tasks will see a measurable improvement.

The Intel Core i5-8400H is not without its merits. Its Geekbench scores, while not directly comparable to the AMD part's missing Geekbench data, are respectable in absolute terms: 3656 multicore and 1281 single-core. The Intel chip also has a higher boost clock (4.10 GHz versus 3.60 GHz) and a substantially larger L3 cache (12 MB shared versus 2 MB shared). However, the recorded benchmark data does not translate that clock and cache advantage into a win in any of the six head-to-head tests.

From a pure performance standpoint, the data says to choose the AMD Ryzen Embedded V1756B. It wins every measured workload and does so with consistent margins. The Intel part is a viable alternative if its specific platform features, such as the Intel BGA 1440 socket or the UHD 630 integrated graphics, are required. But the recorded numbers do not support choosing the Intel part on raw compute performance.

For buyers prioritizing Cinebench-style workloads, the AMD part is the clear pick. The 6.9% multicore advantage in R23 (6867 versus 6392) is meaningful for rendering tasks. The single-core lead of 7.2% in R15 (97 versus 90) is equally relevant for older software that relies on one thread. The data does not show any scenario where the Intel chip outperforms the AMD chip in the tested applications.

Architecture Differences

The two processors come from different architectural lineages. The Intel Core i5-8400H uses Coffee Lake, specifically the Coffee Lake-H variant, built on a 14 nm process at Intel's own foundry. The AMD Ryzen Embedded V1756B uses the original Zen architecture, also on 14 nm, but manufactured by GlobalFoundries. Both are 14 nm parts, but the underlying design philosophies differ significantly.

The Intel die is smaller: 126 mm² versus 210 mm² for the AMD chip. The AMD part integrates 4,950 million transistors, a figure not listed for the Intel part. That transistor count is high for a 4-core, 8-thread chip, reflecting the larger die and the integrated Radeon Vega 8 graphics.

Cache layouts are a major differentiator. The Intel part offers 64 KB of L1 per core, 256 KB of L2 per core, and a shared 12 MB L3. The AMD part offers double the L1 (128 KB per core), double the L2 (512 KB per core), but only 2 MB of shared L3. The Intel chip has six times the L3 capacity, which should benefit cache-sensitive workloads. Yet the benchmark data shows the AMD chip winning regardless, suggesting that its superior core IPC and higher base clock compensate for the smaller L3.

The integrated graphics also differ. Intel uses the UHD 630, AMD uses Radeon Vega 8. The database does not include graphics benchmarks, so no quantitative comparison is possible. Both are integrated solutions suitable for basic display output, but the architecture difference is notable: Vega 8 is a more capable GPU in general terms, though the data cannot confirm this.

Memory support is DDR4 for both, with the AMD part explicitly listing dual-channel memory bus. The Intel part's memory bus is not recorded. Neither supports ECC memory, which is a shared limitation.

Specification Differences

The sockets differ entirely: Intel BGA 1440 for the Core i5-8400H, AMD Socket FP5 for the Ryzen Embedded V1756B. These are not interchangeable, and any system design must account for the platform choice.

Clock speeds show a trade-off. The Intel part has a base clock of 2.50 GHz and a boost clock of 4.10 GHz. The AMD part has a higher base clock of 3.25 GHz but a lower boost of 3.60 GHz. The AMD chip's advantage in the benchmarks likely stems from its higher base clock, since the Intel chip's higher boost may not be sustained under all-core loads.

Both have 4 cores and 8 threads, so thread count is identical. TDP is also identical at 45 W for both. Neither has an unlocked multiplier, so overclocking is not a feature of either part.

The market segment differs: Intel lists the part as Mobile, AMD lists it as Desktop. This reflects intended usage, though the Ryzen Embedded branding suggests industrial or embedded applications. The production status also differs: Intel is end-of-life, AMD is active. The AMD part was released earlier, on 2018-02-20, while the Intel part came later on 2018-04-01.

L1 and L2 cache differ as noted: 64 KB and 256 KB per core for Intel, versus 128 KB and 512 KB per core for AMD. L3 differs dramatically: 12 MB shared for Intel, 2 MB shared for AMD. The Intel part has a part number (SR3Z1), the AMD part does not list one.

FAQ

Q: Which CPU wins in Cinebench R23 multicore?

A: The AMD Ryzen Embedded V1756B wins with a score of 6867, compared to the Intel Core i5-8400H's 6392, a 6.9% advantage.

Q: Is the Intel part ever ahead in any head-to-head benchmark?

A: No. The AMD part wins all six recorded tests: R15 multicore (692 vs 644), R15 single-core (97 vs 90), R20 multicore (2884 vs 2684), R20 single-core (406 vs 378), R23 multicore (6867 vs 6392), and R23 single-core (969 vs 902).

Q: How do the average benchmark scores compare?

A: The Intel Core i5-8400H averages 2003 points, while the AMD Ryzen Embedded V1756B averages 1986 points. The Intel part's higher average is due to its additional Geekbench results (3656 multicore, 1281 single-core), which are not present in the AMD part's benchmark list.

Q: What are the L3 cache sizes?

A: The Intel part has 12 MB of shared L3 cache. The AMD part has 2 MB of shared L3 cache. Despite the Intel part's six-fold L3 advantage, the AMD part wins all Cinebench tests.

Q: Do both CPUs support ECC memory?

A: No. Neither the Intel Core i5-8400H nor the AMD Ryzen Embedded V1756B supports ECC memory.

Q: What are the process nodes and foundries?

A: Both are 14 nm parts. The Intel chip is manufactured by Intel, the AMD chip by GlobalFoundries. The Intel die is 126 mm², while the AMD die is 210 mm² and integrates 4,950 million transistors.