Intel Core i5-8265U vs Intel Xeon Gold 6326 Comparison

Head-to-Head Benchmarks

The benchmark data presents a complete sweep for the Intel Xeon Gold 6326, which wins all six recorded Cinebench comparisons against the Intel Core i5-8265U. The margins are substantial across every workload, both multi-core and single-core.

Looking first at Cinebench R15, the Xeon Gold 6326 scores 2812 in the multi-core test against 451 for the Core i5-8265U. That is a 523.5% advantage. The single-core R15 result follows the same pattern, with the Xeon at 396 versus 63, a 528.6% lead. These deltas are so large that they indicate a fundamental difference in processing capability rather than a marginal architectural edge.

Moving to Cinebench R20, the multi-core score for the Xeon Gold 6326 is 11719, while the Core i5-8265U manages 1882, a 522.7% difference. In single-core R20, the Xeon scores 1654 against 265, which is 524.2% higher. The consistency of these percentages, all hovering near the 520% to 530% range, suggests the performance gap scales almost uniformly across rendering workloads.

Cinebench R23, the most demanding of the three versions in the database, shows the Xeon Gold 6326 at 27904 multi-core versus 4482 for the Core i5-8265U, a 522.6% lead. Single-core R23 puts the Xeon at 3939 and the Core i5 at 632, a 523.3% advantage. In every single test, the Xeon Gold 6326 delivers a score that is roughly six times higher than the mobile chip. The data shows no workload category where the Core i5-8265U closes the gap below 500%.

The average benchmark score in the database tells a slightly different story, though. The Xeon Gold 6326 has an average score of 8071, placing it in the 64th percentile of all CPUs. The Core i5-8265U has a higher average score of 8568, also in the 64th percentile. This is because the Core i5-8265U has additional PassMark benchmarks recorded in the database, including data compression at 76049, data encryption at 1961, extended instructions at 4904, find prime numbers at 18, floating point math at 12963, integer math at 21560, multithread at 5838, physics at 405, random string sorting at 10117, and single thread at 2030. These PassMark results are not part of the direct head-to-head Cinebench comparisons but they do influence the overall average.

The nearest rivals for the Xeon Gold 6326 in the database include the Intel Xeon Platinum 8180M with an average score of 8110 (0.5% lower), the Intel Core i3-8100 at 8123 (0.6% lower), the AMD EPYC 7302 at 8139 (0.8% lower), and the Intel Xeon Gold 5318Y at 8147 (0.9% lower). For the Core i5-8265U, the closest competitors are the Intel Core i5-8250U at 8577 (0.1% lower), the Intel Core i7-10510U at 8580 (0.1% lower), the AMD EPYC 7601 at 8619 (0.6% higher), and the Intel Pentium Gold G7400 at 8515 (0.6% lower). These rival comparisons show that both processors sit in similar percentile territory overall, despite the massive Cinebench gap.

FAQ

Q: Which processor wins the Cinebench R23 multi-core test?

A: The Intel Xeon Gold 6326 scores 27904, while the Intel Core i5-8265U scores 4482. The Xeon leads by 522.6%.

Q: Is the single-core performance gap as large as the multi-core gap?

A: Yes. In Cinebench R15 single-core, the Xeon Gold 6326 scores 396 versus 63 for the Core i5-8265U, a 528.6% lead. In R20 single-core, the Xeon leads 1654 to 265 (524.2%), and in R23 single-core, 3939 to 632 (523.3%).

Q: How many benchmark wins does each processor have in the head-to-head comparison?

A: The Intel Xeon Gold 6326 wins all six head-to-head Cinebench tests. The Intel Core i5-8265U records zero wins in those comparisons.

Q: What is the average benchmark score for each processor?

A: The Xeon Gold 6326 has an average benchmark score of 8071. The Core i5-8265U has an average benchmark score of 8568. Both sit in the 64th percentile of all CPUs.

Q: Does the Core i5-8265U have any benchmark categories not recorded for the Xeon Gold 6326?

A: Yes. The Core i5-8265U has PassMark results in the database for data compression (76049), data encryption (1961), extended instructions (4904), find prime numbers (18), floating point math (12963), integer math (21560), multithread (5838), physics (405), random string sorting (10117), and single thread (2030). No PassMark scores are recorded for the Xeon Gold 6326.

Q: How do the nearest rivals compare for each processor?

A: For the Xeon Gold 6326, the closest rival is the Intel Xeon Platinum 8180M at 8110 average score (0.5% lower), followed by the Intel Core i3-8100 at 8123 (0.6% lower), the AMD EPYC 7302 at 8139 (0.8% lower), and the Intel Xeon Gold 5318Y at 8147 (0.9% lower). For the Core i5-8265U, the Intel Core i5-8250U is closest at 8577 (0.1% lower), then the Intel Core i7-10510U at 8580 (0.1% lower), the AMD EPYC 7601 at 8619 (0.6% higher), and the Intel Pentium Gold G7400 at 8515 (0.6% lower).

Where Each One Wins

The Intel Xeon Gold 6326 wins every Cinebench rendering benchmark in the database, both multi-core and single-core. The multi-core wins are expected given its 16 cores and 32 threads, but the single-core wins are equally decisive. The Xeon leads by 528.6% in R15 single-core, 524.2% in R20 single-core, and 523.3% in R23 single-core. This means the Xeon is not just a throughput monster, it also has a per-thread advantage in these workloads.

The Intel Core i5-8265U does not win any head-to-head test, but it does have a broader benchmark footprint in the database. The PassMark scores recorded for the mobile chip cover data compression, encryption, extended instructions, prime number finding, floating point math, integer math, multithread performance, physics, random string sorting, and single thread performance. These are workloads where the Core i5-8265U has recorded data, but no direct comparison exists for the Xeon Gold 6326 in those same tests.

For a use-case split, the Xeon Gold 6326 is the clear choice for rendering and CPU-intensive compute tasks where Cinebench scores are representative. The Core i5-8265U, with its PassMark results, may have utility in scenarios where those specific workloads matter, but the database does not provide a head-to-head comparison in those areas. The data shows the Xeon wins all direct comparisons, and the Core i5's only advantage is having more recorded benchmark categories.

Specification Differences

The core and thread counts differ substantially. The Intel Xeon Gold 6326 has 16 cores and 32 threads, while the Intel Core i5-8265U has 4 cores and 8 threads. That is a 4x difference in both core count and thread count.

Clock speeds also differ, though the base clock figures appear in different formats in the database. The Xeon Gold 6326 has a base clock of 2.90 GHz and a boost clock of 3.50 GHz. The Core i5-8265U has a base clock listed as 1600.00 MHz and a boost clock of 3.90 GHz. The Xeon has a higher base clock but a lower boost clock compared to the mobile chip.

Thermal design power is a major differentiator. The Xeon Gold 6326 has a TDP of 185 watts, while the Core i5-8265U has a TDP of 15 watts. The socket types are completely different as well, with the Xeon using Intel Socket 4189 and the Core i5 using Intel BGA 1528.

Memory support differs significantly. Both support DDR4, but the Xeon Gold 6326 uses an eight-channel memory bus with 204.8 GB/s bandwidth, while the Core i5-8265U uses a dual-channel bus with 38.4 GB/s bandwidth. ECC memory is supported on the Xeon but not on the Core i5. PCIe connectivity also differs, with the Xeon offering Gen 4 with 64 lanes (CPU only) versus Gen 3 with 16 lanes (CPU only) for the Core i5.

The integrated graphics situation is one-sided. The Core i5-8265U includes UHD Graphics 620, while the Xeon Gold 6326 has no integrated graphics listed.

Production status and release dates differ. The Xeon Gold 6326 is listed as active with a release date of 2021-04-05. The Core i5-8265U is end-of-life with a release date of 2018-09-30. The Core i5-8265U has a launch MSRP of $297, while the Xeon Gold 6326 has no launch MSRP recorded in the database.

Architecture Differences

The two processors come from different architectural generations. The Intel Xeon Gold 6326 is built on Ice Lake, specifically the Ice Lake-SP codename, using a 10 nm process node from Intel. The Intel Core i5-8265U uses Whiskey Lake, specifically Whiskey Lake-U, on a 14 nm process node. The process node difference of 10 nm versus 14 nm is a notable architectural separation.

Cache layouts differ across all levels. Both have 64 KB of L1 cache per core. The L2 cache is 1 MB per core on the Xeon Gold 6326, while the Core i5-8265U has 256 KB per core. The L3 cache is 24 MB shared on the Xeon versus 6 MB shared on the Core i5. The Xeon has four times the L3 cache and four times the L2 cache per core.

The market segments are entirely different. The Xeon Gold 6326 targets the server and workstation segment, while the Core i5-8265U is a mobile processor. This is reflected in the TDP, socket, memory bus, and PCIe specifications. The Xeon's eight-channel memory and 204.8 GB/s bandwidth are server-class features, while the Core i5's dual-channel 38.4 GB/s bandwidth fits a mobile power envelope.

The generation naming in the database reflects the different product lines: the Xeon Gold 6326 is part of the Xeon Gold (Ice Lake-SP) generation, while the Core i5-8265U is part of the Core i5 (Whiskey Lake) generation. The multiplier is locked on both processors, so neither offers overclocking flexibility through unlocked multipliers.

The Core i5-8265U has a part number listed as SRFFXSREJQSREJR, while no part number is recorded for the Xeon Gold 6326.

The Verdict

The data points to a straightforward conclusion for rendering workloads. The Intel Xeon Gold 6326 outperforms the Intel Core i5-8265U by approximately 520% to 530% across all six Cinebench tests in the database. There is no workload in the head-to-head comparison where the Core i5-8265U comes close. The Xeon's 16 cores, 32 threads, 24 MB of shared L3 cache, and eight-channel memory configuration deliver a level of compute throughput that the 4-core, 8-thread mobile chip cannot approach.

The Intel Core i5-8265U is not without recorded strengths, however. Its PassMark results show capability in specific tasks like data compression (76049), integer math (21560), and floating point math (12963). Those scores are only recorded for the Core i5, so a direct comparison with the Xeon Gold 6326 in those workloads is not possible from the database. The Core i5 also has integrated UHD Graphics 620, a feature the Xeon entirely lacks, which matters for systems that need a display output without a discrete GPU.

For buyers choosing between these two, the decision hinges on the workload. The Xeon Gold 6326 is the clear choice for server or workstation deployments where Cinebench-style rendering performance, ECC memory support, 64 PCIe Gen 4 lanes, and eight-channel DDR4 bandwidth are required. The Core i5-8265U is a mobile chip with a 15 watt TDP, so it fits in laptops and compact systems where power consumption and integrated graphics are priorities. The Xeon's 185 watt TDP and socket 4189 requirement place it firmly in a rack or workstation chassis.

The average benchmark scores in the database complicate a simple ranking. The Xeon Gold 6326 averages 8071, while the Core i5-8265U averages 8568, despite the Xeon winning every direct comparison. This is because the Core i5 has additional PassMark benchmarks contributing to its average, and those scores are relatively high. Both processors sit in the 64th percentile of all CPUs, which means either one is a midline performer in the broader database context.

The production status matters for long-term planning. The Xeon Gold 6326 is active, while the Core i5-8265U is end-of-life. For new deployments, the Xeon is the more future-proof option. For existing mobile systems, the Core i5 remains a functional part despite its end-of-life status.

The verdict from the recorded data is clear: the Xeon Gold 6326 is the superior processor for compute-heavy server and workstation tasks, while the Core i5-8265U serves a niche mobile role with integrated graphics and a much lower power envelope. The direct benchmark comparisons leave no ambiguity about which one delivers more raw performance in Cinebench workloads.