Intel Core i3-8100 vs Intel Xeon Platinum 8180M Comparison

The Intel Core i3-8100 and the Intel Xeon Platinum 8180M occupy opposite ends of Intel’s 2017 product stack, yet the aggregate benchmark data places them as near-identical rivals. The i3-8100 posts an average benchmark score of 8123, while the Xeon Platinum 8180M sits at 8110, a delta of just 0.2%. This statistical tie masks a complete divergence in workload performance, driven by fundamentally different core architectures and market intentions. The data reveals a desktop part and a server behemoth that, despite similar overall averages, could not be more different in their individual strengths.

Head-to-Head Benchmarks

The head-to-head results are decisively one-sided. Across all six shared Cinebench tests, the Xeon Platinum 8180M wins every round, with deltas hovering around -86.6% for the i3-8100. In Cinebench R23 multi-core, the Xeon scores 28040 against the i3’s 3769, a massive 86.6% gap. The single-core story is equally stark: the Xeon’s 3958 in R23 single-core dwarfs the i3’s 532. The pattern repeats in Cinebench R20, where the Xeon’s 11776 multi-core score is 86.6% higher than the i3’s 1582, and even in R15, where the Xeon’s 2826 multi-core result versus the i3’s 379 shows the same proportional deficit.

The closest margin in the entire head-to-head set is still a blowout. In Cinebench R15 single-core, the Xeon’s 398 beats the i3’s 53 by 86.7%. These are not marginal wins; they are generational-scale defeats. The i3-8100’s best showing is its Cinebench R23 single-core score of 532, yet the Xeon still outperforms it by a factor of roughly 7.4. The data suggests that the Xeon Platinum 8180M does not merely edge out the i3-8100 — it overwhelms it in every measurable shared workload, leaving no benchmark where the i3 can claim even a symbolic victory.

Where Each One Wins

The wins breakdown is unambiguous: the Xeon Platinum 8180M claims all six head-to-head benchmarks, while the i3-8100 takes zero. This means the Xeon dominates in both multi-threaded and single-threaded Cinebench tests. For multi-core rendering, the Xeon’s 28 cores and 56 threads provide a 7.4x advantage in R23 multi-core (28040 vs 3769). For single-core tasks, the Xeon’s higher boost clock of 3.80 GHz, compared to the i3’s fixed 3.60 GHz base, explains its consistent single-core lead, such as the 3958 versus 532 in R23 single-core.

The i3-8100 has no benchmark wins in the shared test suite, but its other benchmark data suggests where it might hold its own in a broader comparison. Its PassMark single-thread score of 2203 and Geekbench single-core score of 1214 indicate competent single-core performance for a desktop chip. However, against the Xeon’s specific Cinebench results, the i3 cannot find a foothold. The Xeon’s wins are not confined to multi-core; its single-core scores are equally superior, meaning the i3-8100’s only potential advantage would be in power efficiency or platform cost, neither of which is captured in these benchmark scores.

Architecture Differences

The two processors are built on the same 14 nm process node but diverge completely in every other architectural aspect. The i3-8100 uses the Coffee Lake architecture, while the Xeon Platinum 8180M is based on Skylake-SP. The i3 is a quad-core design with 4 threads, whereas the Xeon is a 28-core, 56-thread monster. The Xeon’s transistor count is listed at 8,000 million, but the i3’s is not specified; the i3’s die size is 126 mm², while the Xeon’s die size is not provided. Both share 64 KB of L1 cache per core, but the L2 cache differs: the i3 has 256 KB per core, while the Xeon has a substantially larger 1 MB per core. The L3 cache also contrasts sharply, with the i3 offering 6 MB shared and the Xeon providing 38.5 MB shared.

The Xeon’s 38.5 MB L3 cache is more than six times larger than the i3’s 6 MB, which likely contributes to its superior multi-core throughput in cache-sensitive workloads like Cinebench. The Xeon also supports a boost clock of 3.80 GHz, a feature the i3 lacks entirely — the i3 is locked at 3.60 GHz with no turbo capability. Both chips support ECC memory, but the i3 is a desktop part with integrated UHD Graphics 630, while the Xeon has no integrated graphics, reflecting its server/workstation role. The Xeon’s socket is Intel Socket 3647, versus the i3’s Intel Socket 1151, making them physically incompatible platforms.

Specification Differences

The specification table shows clear divergences across every major field. The core counts differ by a factor of seven: 4 cores and 4 threads for the i3 versus 28 cores and 56 threads for the Xeon. Base clocks are 3.60 GHz for the i3 and 2.50 GHz for the Xeon, but the Xeon adds a boost clock of 3.80 GHz, while the i3 has no boost option. Thermal design power is another major gap: 65 W for the i3 versus 205 W for the Xeon, a 140 W difference that reflects the Xeon’s much larger silicon. The sockets are incompatible, as noted, and the process nodes are identical at 14 nm, but the Xeon’s transistor count of 8,000 million versus the i3’s unspecified count underscores the scale difference.

Memory support is listed as DDR4 for both, but the i3 specifies a dual-channel bus with 38.4 GB/s bandwidth, while the Xeon’s memory bus and bandwidth are not provided. The i3 has 16 PCIe Gen 3 lanes (CPU only), while the Xeon’s PCIe configuration is null. Integrated graphics are present on the i3 (UHD Graphics 630) but absent on the Xeon. The market segments differ: Desktop for the i3, Server/Workstation for the Xeon. Release dates are close — the i3 launched on 2017-10-04, about three months after the Xeon’s 2017-07-10 — but the i3 is marked as end-of-life, while the Xeon’s production status is not specified. The i3 has a launch MSRP of $117, while the Xeon has no listed MSRP.

FAQ

Q: Which processor wins the most head-to-head benchmarks?

A: The Intel Xeon Platinum 8180M wins all six shared Cinebench tests, while the Intel Core i3-8100 wins zero. The deltas are consistently around -86.6% for the i3, indicating a complete sweep by the Xeon.

Q: What is the performance gap in multi-core Cinebench R23?

A: The Xeon Platinum 8180M scores 28040 in Cinebench R23 multi-core, while the i3-8100 scores 3769. This is a delta of -86.6% for the i3, meaning the Xeon is roughly 7.4 times faster in this specific test.

Q: Does the i3-8100 have any advantage in single-core performance?

A: No. The Xeon wins every single-core Cinebench test as well. In R23 single-core, the Xeon scores 3958 versus the i3’s 532, a delta of -86.6%. The i3’s fixed 3.60 GHz clock cannot match the Xeon’s 3.80 GHz boost clock.

Q: How do the core counts compare between the two?

A: The i3-8100 has 4 cores and 4 threads, while the Xeon Platinum 8180M has 28 cores and 56 threads. This sevenfold difference in core count directly drives the Xeon’s multi-core dominance.

Q: Are these processors compatible with the same motherboard?

A: No. The i3-8100 uses Intel Socket 1151, while the Xeon Platinum 8180M uses Intel Socket 3647. They are physically incompatible and target entirely different platforms (Desktop versus Server/Workstation).

Q: What is the average benchmark score comparison between the two?

A: The i3-8100 has an average benchmark score of 8123, and the Xeon Platinum 8180M has an average of 8110. The Xeon is 0.2% behind the i3 in this metric, making them effectively tied in aggregate despite their different workload profiles.

The Verdict

The data points to a clear conclusion: choose the Intel Xeon Platinum 8180M if your priority is raw computational throughput, especially in multi-threaded workloads. Its 28 cores and 56 threads deliver a 7.4x advantage in Cinebench R23 multi-core (28040 versus 3769) and a similar margin across all shared tests. The Xeon also wins single-core tests, meaning it offers no compromise for lightly threaded tasks — its 3.80 GHz boost clock ensures superiority even there. This processor is designed for server and workstation environments where the 205 W TDP and Socket 3647 are acceptable trade-offs for massive parallel performance.

The Intel Core i3-8100, by contrast, has zero benchmark wins in the shared suite. Its aggregate average score of 8123 is statistically identical to the Xeon’s 8110, but this is misleading. The i3’s strength lies in its desktop-oriented design: a 65 W TDP, integrated UHD Graphics 630, and Socket 1151 compatibility make it a sensible choice for a basic desktop build. Its 4 cores and 4 threads are sufficient for entry-level tasks, and its PassMark single-thread score of 2203 shows competent everyday responsiveness. However, against the Xeon, the i3 is outclassed in every measurable performance metric. The data suggests that the i3-8100 is best suited for budget-conscious desktop users who do not need extreme multi-core power, while the Xeon Platinum 8180M is the unequivocal choice for anyone running heavily threaded server workloads. The 0.2% aggregate difference between them is a statistical artifact of their divergent benchmark profiles, not an indication of comparable real-world performance.