AMD Ryzen 7 5800U vs Intel Xeon E-2186G Comparison

The Verdict

The data presents a genuinely split decision between these two processors. The AMD Ryzen 7 5800U wins four of the six head-to-head benchmarks, while the Intel Xeon E-2186G takes the other two, but the margins tell a more nuanced story than the raw win count. The Ryzen 7 5800U dominates in Geekbench and Cinebench R15, with particularly large advantages in single-core R15 (40.5% ahead) and multi-core R15 (39.3% ahead). The Xeon E-2186G, however, flips the script in Cinebench R23, where it leads by 29% in multi-core and 12% in single-core.

For mobile users and those prioritizing efficiency, the Ryzen 7 5800U is the clear choice. Its 15 W TDP against the Xeon's 95 W TDP, combined with its 8 cores and 16 threads, makes it the more practical option for thin-and-light systems. The Xeon E-2186G, with its 6 cores and 12 threads, higher clock speeds, and server/workstation segment positioning, suits sustained heavy workloads where the R23 results matter more. The Xeon also supports ECC memory, a critical feature for data integrity in workstation environments.

Both processors sit at the 54th percentile among all CPUs in the database, and their average benchmark scores are remarkably close: 3369 for the Ryzen versus 3462 for the Xeon, a difference of under 3%. The Xeon's nearest rival, the Intel Core i7-9700F, matches it exactly at 3464 with a 0% delta, while the Ryzen's closest competitor, the AMD Ryzen 5 PRO 7530U, sits at 3394, only 0.7% ahead. This is a pairing where the "better" processor depends entirely on the workload and platform constraints.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 7 5800U has 8 cores and 16 threads, while the Intel Xeon E-2186G has 6 cores and 12 threads.

Q: How do their single-core performances compare in Cinebench R23?

A: The Intel Xeon E-2186G leads with a score of 1622 versus the Ryzen 7 5800U's 1427, a 12% advantage for the Xeon.

Q: What about Geekbench single-core results?

A: The AMD Ryzen 7 5800U wins that test with 1656 points against the Xeon's 1550, a 6.8% margin in favor of the Ryzen.

Q: Do both processors support ECC memory?

A: No. The Intel Xeon E-2186G supports ECC memory, while the AMD Ryzen 7 5800U does not.

Q: What are their average benchmark scores in the database?

A: The Ryzen 7 5800U averages 3369, and the Xeon E-2186G averages 3462. The Xeon is about 2.8% higher on average.

Q: Which processor has a higher boost clock?

A: The Intel Xeon E-2186G boosts to 4.70 GHz, while the AMD Ryzen 7 5800U boosts to 4.40 GHz.

Architecture Differences

The two chips come from fundamentally different design philosophies. The AMD Ryzen 7 5800U uses the Zen 3 architecture on the Cezanne-U codename, built on TSMC's 7 nm process node. It packs 10,700 million transistors into a 180 mm² die. The Intel Xeon E-2186G uses the Coffee Lake architecture, specifically the Coffee Lake-S WS codename, on Intel's 14 nm process with a 154 mm² die size and no transistor count recorded in the database.

The cache hierarchies differ notably. Both share 64 KB of L1 per core, but the Ryzen has 512 KB of L2 per core while the Xeon has 256 KB. For L3, the Ryzen offers 16 MB shared, while the Xeon provides 12 MB shared. These differences matter for workloads that benefit from larger cache footprints, particularly the Ryzen's double L2 allocation per core.

Integrated graphics also separate the two. The Ryzen 7 5800U comes with Radeon Vega 8 graphics, while the Xeon E-2186G has HD Graphics P630. The Ryzen's mobile-focused design with integrated Vega graphics makes it suitable for systems without discrete GPUs, whereas the Xeon's P630 is more of a basic display output solution for server and workstation platforms.

The platform ecosystems diverge completely. The Ryzen uses AMD Socket FP6, a mobile socket designed for laptops and compact systems. The Xeon uses Intel Socket 1151, a desktop-oriented socket adapted for workstation use. The Ryzen is marked as "Active" in production status, while the Xeon is "End-of-life." The Ryzen also has a much later release date of 2021-01-11 compared to the Xeon's 2018-05-30, reflecting the generational gap between the two designs.

Specification Differences

The specification sheets reveal a tale of two very different product categories. The Ryzen 7 5800U is a mobile processor with a 15 W TDP, while the Xeon E-2186G is a server/workstation part with a 95 W TDP. This 80 W gap explains a lot about their intended use cases and performance characteristics.

Clock speeds favor the Xeon. Its base clock is 3.80 GHz versus the Ryzen's 1900.00 MHz (1.90 GHz), and its boost reaches 4.70 GHz against the Ryzen's 4.40 GHz. The Xeon's higher base clock suggests sustained performance capability, while the Ryzen's lower base clock indicates a design focused on power efficiency and thermal management.

Memory bandwidth also differs. The Ryzen supports 51.2 GB/s, while the Xeon supports 42.7 GB/s, giving the AMD part a bandwidth advantage despite the Xeon's higher clocks. Both use dual-channel DDR4 memory, but the Ryzen's faster bandwidth could benefit memory-intensive workloads.

PCIe connectivity is another differentiator. The Ryzen provides Gen 3 with 8 lanes (CPU only), while the Xeon provides Gen 3 with 16 lanes (CPU only). The Xeon's doubled lane count makes it more suitable for systems with multiple expansion cards or high-bandwidth peripherals.

The Xeon has a launch MSRP of $506 and supports ECC memory; the Ryzen has no recorded launch MSRP and lacks ECC support. The Ryzen's part number is 100-000000285, while the Xeon's is SR3WR. Neither processor has an unlocked multiplier.

Head-to-Head Benchmarks

The benchmark results show a fascinating reversal between test suites. In Cinebench R15, the Ryzen 7 5800U absolutely dominates. Multi-core sees the Ryzen score 1613 against the Xeon's 1158, a 39.3% advantage. Single-core R15 shows an even bigger gap: 229 versus 163, a 40.5% lead for the Ryzen. These are massive margins that suggest the Ryzen's architecture is far more efficient at this particular workload, likely benefiting from its newer Zen 3 design and larger cache configuration.

Geekbench results also favor the Ryzen, though by smaller margins. Multi-core Geekbench shows the Ryzen at 7132 against the Xeon's 6204, a 15% advantage. Single-core Geekbench has the Ryzen at 1656 versus 1550, a 6.8% edge. These results indicate the Ryzen maintains its architectural advantage across different benchmarking methodologies.

The Xeon fights back in Cinebench R23, and the turnaround is dramatic. Multi-core R23 sees the Xeon score 11492 against the Ryzen's 8154, a 29% lead for Intel. Single-core R23 also favors the Xeon: 1622 versus 1427, a 12% advantage. This reversal is striking because it directly contradicts the R15 results, suggesting the R23 workload scales differently with the Xeon's higher clocks and different cache behavior.

The Xeon also has a Cinebench R20 result recorded in its benchmark data: 4826 multi-core and 681 single-core. The Ryzen has no R20 results in the database, so a direct comparison is not possible for that test.

The overall picture from the six head-to-head tests shows the Ryzen winning four and the Xeon winning two. But the average benchmark scores tell a closer story: the Ryzen averages 3369, and the Xeon averages 3462. The Xeon's R23 dominance pulls its average above the Ryzen's, despite losing the majority of individual tests.

Where Each One Wins

The Ryzen 7 5800U is the winner in scenarios that value efficiency and modern architecture. Its 15 W TDP makes it suitable for laptops and compact systems where thermal and power budgets are tight. The 39.3% and 40.5% leads in Cinebench R15 multi-core and single-core, respectively, show that this chip can outperform the Xeon in certain legacy workloads while consuming a fraction of the power. The Geekbench wins, 15% in multi-core and 6.8% in single-core, reinforce its general-purpose computing strength.

The Ryzen's larger L2 cache (512 KB per core versus 256 KB) and shared 16 MB L3 give it an advantage in workloads that repeatedly access the same data. Its higher memory bandwidth of 51.2 GB/s versus 42.7 GB/s also helps in memory-bound scenarios. The integrated Radeon Vega 8 graphics make it a more self-contained solution for systems without discrete GPUs.

The Xeon E-2186G wins in sustained, high-thread-count workloads represented by Cinebench R23. Its 29% multi-core lead and 12% single-core lead in that test suggest it can maintain higher performance over longer durations, likely due to its 95 W TDP allowing sustained clocks. The 4.70 GHz boost clock and 3.80 GHz base clock provide a strong foundation for server and workstation tasks that run for extended periods.

The Xeon's ECC memory support makes it the choice for data-sensitive applications like financial modeling, scientific computing, or any workload where memory errors are unacceptable. Its 16 PCIe Gen 3 lanes double the Ryzen's 8 lanes, enabling more expansion options for workstation builds. The launch MSRP of $506 positions it as a professional-grade component, and its server/workstation market segment confirms this targeting.

The data suggests a clear use-case split. Mobile productivity, general computing, and power-constrained environments favor the Ryzen 7 5800U. Sustained professional workloads, ECC-dependent applications, and systems requiring maximum PCIe expansion favor the Xeon E-2186G. The 54th percentile ranking for both processors indicates they occupy similar overall performance tiers, but their strengths lie in different domains.