Intel Core i5-8250U vs Intel Xeon Gold 6346 Comparison

Head-to-Head Benchmarks

The recorded data shows a complete sweep for the Intel Xeon Gold 6346 across all six shared Cinebench tests. The smallest margin of victory comes in Cinebench R23 multi-core, where the Xeon scores 31650 against the Core i5-8250U's 4918, a 543.6% advantage. The largest gap appears in Cinebench R15 single-core, with the Xeon at 450 and the mobile chip at 69, a 552.2% difference. These are not close contests by any measure.

Multi-threaded workloads amplify the core-count disparity. In Cinebench R15 multi-core, the Xeon Gold 6346 posts 3190 versus 495 for the i5-8250U, a 544.4% lead. Cinebench R20 multi-core shows 13293 against 2065, a 543.7% delta. The pattern holds in every iteration of the benchmark suite, with deltas clustering tightly between 543.6% and 552.2%. The consistency of these margins suggests a structural advantage rather than a workload-specific quirk.

Single-core results tell a similar story, though the percentages are slightly higher. The Xeon leads by 552.2% in R15 single-core, 544.7% in R20 single-core, and 543.8% in R23 single-core. The i5-8250U's best single-core showing is 694 in R23, while the Xeon reaches 4468. Even in the most lightly threaded scenarios, the server processor maintains a massive edge.

The average benchmark score places the Xeon Gold 6346 at 9155, while the i5-8250U sits at 8577. Interestingly, the Xeon's nearest rival in the database is the Intel Xeon Gold 5320 with an average score of 9234, a delta of -0.9%, meaning the 5320 edges it out slightly. The Core i5-8250U's closest competitor is the Intel Core i7-10510U at 8580, a delta of 0%, essentially a dead heat. The Xeon also sits near the Intel Core i7-1165G7 (9235, -0.9%) and the Core i5-10300H (9243, -0.9%), while the i5-8250U is within 0.7% of the Intel Pentium Gold G7400 (8515) and within 0.5% of the AMD EPYC 7601 (8619).

Percentile rankings are surprisingly close given the performance gap. The Xeon Gold 6346 lands in the 65th percentile of all CPUs, while the i5-8250U sits in the 64th percentile. This suggests that the database's overall CPU population includes many high-core-count server parts and that the i5-8250U, despite its modest absolute scores, still outperforms a large share of registered processors.

Architecture Differences

The two processors come from different architectural eras and design philosophies. The Intel Xeon Gold 6346 uses Ice Lake-SP, built on Intel's 10 nm process, while the Core i5-8250U uses Kaby Lake-R, fabricated on a 14 nm node. The process node gap alone does not explain the performance difference, but it does point to generations of design separation.

Core counts diverge sharply. The Xeon packs 16 cores and 32 threads, whereas the i5-8250U offers 4 cores and 8 threads. This fourfold core count, combined with double the threads per core, drives the multi-threaded benchmark results. The Xeon's base clock of 3.10 GHz and boost clock of 3.60 GHz look modest next to the i5-8250U's base clock of 1600.00 MHz and boost of 3.40 GHz, but the Xeon's advantage comes from sheer parallel throughput rather than raw clock speed.

Cache hierarchies scale with the core counts. Both chips allocate 64 KB of L1 per core, but the L2 differs: the Xeon has 1 MB per core, while the i5-8250U has 256 KB per core. Shared L3 cache shows the starkest difference, with the Xeon offering 36 MB shared versus the i5-8250U's 6 MB shared. For workloads that rely on repeated data access across cores, the Xeon's larger cache footprint reduces memory pressure.

Memory support separates the two further. The Xeon Gold 6346 supports DDR4 over an eight-channel memory bus with a recorded bandwidth of 204.8 GB/s. The i5-8250U also supports DDR4, but the database records no memory bus width or bandwidth figure for it. ECC memory is supported on the Xeon but not on the i5-8250U, a critical feature for server workloads where data integrity matters.

The Xeon uses Intel Socket 4189, while the i5-8250U uses Intel BGA 1356, meaning the former is a socketed server part and the latter is soldered to the motherboard. The Xeon also lists PCIe Gen 4 with 64 lanes (CPU only), while the i5-8250U has no recorded PCIe information. Integrated graphics appear only on the i5-8250U, which includes UHD 620; the Xeon has no integrated graphics recorded.

Power envelopes illustrate the intended use cases. The Xeon Gold 6346 has a TDP of 205, while the i5-8250U draws only 15. The Xeon's higher power budget supports its 16 cores and eight-channel memory controller, while the i5-8250U's low TDP targets thin-and-light mobile designs. Die size is recorded only for the i5-8250U at 123 mm², with no die size listed for the Xeon.

Release dates reflect the generational gap. The Xeon Gold 6346 launched on 2021-04-05, while the i5-8250U arrived on 2017-08-20. Both remain in active production according to the database. Neither chip has an unlocked multiplier, and neither has a recorded launch MSRP.

The Verdict

The benchmark data points to a clear conclusion: the Intel Xeon Gold 6346 outperforms the Intel Core i5-8250U in every measured Cinebench test by a margin of at least 543.6%. The Xeon's 16 cores, 32 threads, 36 MB of L3 cache, and 204.8 GB/s memory bandwidth make it the superior choice for compute-heavy server and workstation tasks. The i5-8250U, with 4 cores, 8 threads, 6 MB of L3, and a 15 TDP, serves a completely different purpose: low-power mobile computing where battery life and thermal limits take priority.

The Xeon's average benchmark score of 9155 versus the i5-8250U's 8577 shows that even on a normalized basis, the server chip leads. Yet the percentile rankings tell a nuanced story. Both processors sit near the 65th and 64th percentiles respectively, meaning the i5-8250U is not an outlier in the low end; it simply competes in a different performance class.

For users deciding between these two, the choice hinges on workload and platform. The Xeon demands a server motherboard with Socket 4189, an eight-channel memory setup, and a power delivery system capable of handling 205 watts. The i5-8250U fits into BGA 1356 mobile boards with integrated graphics and minimal cooling requirements. The data does not support using the i5-8250U for heavy multi-threaded rendering or virtualization, nor does it support using the Xeon for portable, battery-powered computing.

FAQ

Q: Which processor has more cores?

A: The Intel Xeon Gold 6346 has 16 cores and 32 threads, while the Intel Core i5-8250U has 4 cores and 8 threads.

Q: How large is the L3 cache difference?

A: The Xeon Gold 6346 has 36 MB of shared L3 cache, whereas the Core i5-8250U has 6 MB of shared L3 cache.

Q: Do both chips support ECC memory?

A: No. The Xeon Gold 6346 supports ECC memory, but the Core i5-8250U does not.

Q: What is the TDP of each processor?

A: The Xeon Gold 6346 has a TDP of 205, while the Core i5-8250U has a TDP of 15.

Q: Which processor has integrated graphics?

A: The Core i5-8250U includes UHD 620 integrated graphics; the Xeon Gold 6346 has no integrated graphics recorded.

Q: How do their average benchmark scores compare?

A: The Xeon Gold 6346 has an average benchmark score of 9155, while the Core i5-8250U has an average of 8577.

Where Each One Wins

The Intel Xeon Gold 6346 wins every shared benchmark in the database. Its advantages concentrate in multi-threaded workloads: Cinebench R23 multi-core shows a 543.6% lead, R20 multi-core a 543.7% lead, and R15 multi-core a 544.4% lead. These results point to rendering, video encoding, scientific simulation, and database workloads that scale across 32 threads. The 204.8 GB/s memory bandwidth and eight-channel DDR4 support further favor memory-intensive server tasks. ECC memory support makes the Xeon suitable for error-sensitive environments like financial modeling or long-running computations.

The single-core results also favor the Xeon, with leads between 543.8% and 552.2% across the Cinebench suite. This means even lightly threaded applications, such as legacy software or single-threaded compilers, run faster on the Xeon. The higher base clock of 3.10 GHz compared to the i5-8250U's 1600.00 MHz base clock contributes to this advantage, though boost clocks are closer at 3.60 GHz versus 3.40 GHz.

The Intel Core i5-8250U wins in scenarios not captured by the shared Cinebench tests. Its 15 TDP enables deployment in thin-and-light laptops without active cooling solutions. The integrated UHD 620 graphics eliminate the need for a discrete GPU in basic display and video playback tasks. The 123 mm² die size and BGA 1356 socket indicate a compact, low-cost integration path for mobile motherboards. The i5-8250U's Passmark results, while not directly compared to the Xeon in the head-to-head table, show a functional mobile processor: 1886 in single-thread, 5812 in multithread, and 20885 in integer math. These numbers demonstrate adequate performance for office productivity, web browsing, and light content creation.

The Xeon's market segment is recorded as Server/Workstation, while the i5-8250U is listed as Mobile. This classification aligns with the benchmark data. The Xeon wins in raw performance, memory capacity, and data integrity features. The i5-8250U wins in power efficiency, portability, and integrated display output. No benchmark in the database shows the i5-8250U ahead of the Xeon, so the mobile chip's strengths are qualitative rather than quantitative.

Specification Differences

The two processors differ across nearly every recorded specification. Core count: 16 versus 4. Threads: 32 versus 8. Base clock: 3.10 GHz versus 1600.00 MHz. Boost clock: 3.60 GHz versus 3.40 GHz. TDP: 205 versus 15. Socket: Intel Socket 4189 versus Intel BGA 1356. Architecture: Ice Lake versus Kaby Lake. Codename: Ice Lake-SP versus Kaby Lake-R. Process node: 10 nm versus 14 nm. Die size: not recorded versus 123 mm².

Cache configurations differ in L2 and L3. Both have 64 KB L1 per core. L2 is 1 MB per core on the Xeon and 256 KB per core on the i5-8250U. L3 is 36 MB shared versus 6 MB shared. Memory support shows DDR4 on both, but the Xeon has an eight-channel bus with 204.8 GB/s bandwidth, while the i5-8250U has no recorded bus width or bandwidth. ECC memory: true on the Xeon, false on the i5-8250U. PCIe: Gen 4 with 64 lanes on the Xeon, not recorded on the i5-8250U. Integrated graphics: none on the Xeon, UHD 620 on the i5-8250U.

Market segment: Server/Workstation versus Mobile. Release date: 2021-04-05 versus 2017-08-20. Part numbers: SRKHNCD8068904570201 for the Xeon and SR3LA for the i5-8250U. Both are in active production, both have locked multipliers, and neither has a recorded launch MSRP. The generation field lists "Xeon Gold (Ice Lake-SP)" for the Xeon and "Core i5 (Kaby Lake-U Refresh)" for the i5-8250U. These differences reinforce the fundamental positioning: a scalable server platform designed for sustained throughput versus a mobile processor engineered for minimal power draw.