Intel Core 3 100U vs Intel Core Ultra X7 368H Comparison

Head-to-Head Benchmarks

The benchmark data presents a complete sweep. The Intel Core Ultra X7 368H wins all 17 recorded head-to-head comparisons, with no benchmark favoring the Intel Core 3 100U. The scale of the victory varies sharply by workload, and the pattern reveals where each processor's architecture has its strengths.

The Cinebench series shows the most consistent dominance. In Cinebench R23 multi-core, the Core Ultra X7 368H scores 28221 against 10624 for the Core 3 100U, a delta of -62.4 percent. That same -62.4 percent delta repeats in Cinebench R20 multi-core, where the score is 11852 versus 4462, and in Cinebench R15 multi-core, where it is 2844 versus 1070. The single-core Cinebench results are nearly identical in proportional terms: Cinebench R23 single-core gives the Core Ultra X7 a 3984 against 1499, again -62.4 percent. Cinebench R20 single-core is 1673 versus 629, and Cinebench R15 single-core is 401 versus 150, both at -62.4 percent. This consistency across three Cinebench versions indicates the performance gap is not an artifact of one test iteration, but a stable architectural advantage.

The PassMark suite shows more variation. The narrowest gap is in single-thread performance, where the Core Ultra X7 368H scores 4005 against 3506, a delta of -12.5 percent. This is the Core 3 100U's least damaging result, indicating that its single-core design, while older, is not catastrophically far behind in lightly threaded tasks. The widest gap appears in PassMark find prime numbers, where the Core Ultra X7 scores 321 against just 52, a delta of -83.8 percent. The extreme margin in prime number calculation suggests the Core Ultra X7's integer execution resources are far more capable per cycle, or its higher clock rate plays a decisive role.

PassMark extended instructions also shows a large gap at -69.2 percent, with the Core Ultra X7 scoring 25669 versus 7894. PassMark physics is similarly lopsided at -69.3 percent, with scores of 2857 and 876. Floating point math sits at -73.2 percent, with the Core Ultra X7 reaching 105681 against 28322. Data encryption is -67.8 percent, at 25228 versus 8128. Data compression comes in at -56.4 percent, with 312927 versus 136497. Integer math is the closest of the heavy multi-threaded workloads at -55.1 percent, scoring 88083 against 39580. Multithread overall is -62 percent, at 32956 versus 12522. Random string sorting is -60.1 percent, at 38093 versus 15191.

The average benchmark score tells the same story from a different angle. The Core Ultra X7 368H averages 40518 across the recorded tests, while the Core 3 100U averages 16148. That is roughly a 2.5x difference in aggregate output. The percentile ranking reinforces it: the Core Ultra X7 sits at the 87th percentile of all CPUs in the database, while the Core 3 100U sits at the 70th percentile. The Core 3 100U's nearest rivals are the Intel Core i7-10850H at 16204 (-0.3 percent), the Intel Core i5-10600KF at 16228 (-0.5 percent), the Intel Core i7-1260U at 16320 (-1.1 percent), and the AMD Ryzen 5 4600H at 16341 (-1.2 percent). The Core Ultra X7's nearest rivals are the Intel Core 7 253PE at 40557 (-0.1 percent), the Intel Core 5 223PE at 40585 (-0.2 percent), the AMD Ryzen 9 7940H at 40431 (0.2 percent), and the Intel Xeon 6507P at 40426 (0.2 percent). The Core 3 100U trades blows with last-generation mid-range parts, while the Core Ultra X7 sits among high-end mobile and even server-class chips.

FAQ

Q: Which processor wins in single-threaded performance?

A: The Intel Core Ultra X7 368H wins. In PassMark single-thread, it scores 4005 against 3506, a delta of -12.5 percent. In Cinebench R23 single-core, it scores 3984 against 1499, a delta of -62.4 percent.

Q: How large is the multi-threaded performance gap?

A: The Core Ultra X7 368H leads by roughly 2.5x in aggregate. In Cinebench R23 multi-core, it scores 28221 versus 10624, a delta of -62.4 percent. In PassMark multithread, it scores 32956 versus 12522, a delta of -62 percent.

Q: What is the widest single benchmark gap between the two?

A: The widest gap is in PassMark find prime numbers, where the Core Ultra X7 368H scores 321 versus 52 for the Core 3 100U, a delta of -83.8 percent.

Q: What is the narrowest single benchmark gap?

A: The narrowest gap is in PassMark single-thread, where the Core Ultra X7 368H scores 4005 versus 3506, a delta of -12.5 percent.

Q: How do the two processors compare in data encryption?

A: The Core Ultra X7 368H scores 25228 in PassMark data encryption, while the Core 3 100U scores 8128, a delta of -67.8 percent.

Q: Which processor has the higher average benchmark score?

A: The Core Ultra X7 368H averages 40518, while the Core 3 100U averages 16148. The Core Ultra X7 also sits at the 87th percentile of all CPUs, compared to the 70th percentile for the Core 3 100U.

Architecture Differences

The two processors come from entirely different design generations. The Intel Core 3 100U uses Raptor Lake architecture, with the Raptor Lake-U codename and a 10 nm process node fabricated by Intel. The Intel Core Ultra X7 368H uses Panther Lake architecture, with the Panther Lake codename and a 3 nm process node, also fabricated by Intel. This node difference is likely a major contributor to the performance gap, as the 3 nm process permits denser, more power-efficient transistors.

Core counts differ substantially. The Core 3 100U has 6 cores and 8 threads, indicating a hybrid layout with some cores lacking hyper-threading. The Core Ultra X7 368H has 16 cores and 16 threads, meaning it has no hyper-threading at all across its core configuration. The Core Ultra X7 gains its multi-threaded advantage purely from having more physical cores, not from additional threads per core.

Cache hierarchies are also distinct. The Core 3 100U has 80 KB of L1 per core, 1.25 MB of L2 per core, and 10 MB of shared L3. The Core Ultra X7 368H has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. Every level of cache is larger on the Core Ultra X7, which helps explain its advantage in data-heavy workloads like compression and random string sorting.

The integrated graphics differ completely. The Core 3 100U uses UHD Graphics 64EU, while the Core Ultra X7 368H uses Arc B390. The Arc B390 is a more modern graphics architecture, though the benchmark data does not include graphics-specific tests.

Memory support diverges. The Core 3 100U supports DDR4 and DDR5, while the Core Ultra X7 368H supports only LPDDR5X. The Core Ultra X7 also lists a memory bandwidth of 153.6 GB/s, while the Core 3 100U has no recorded memory bandwidth figure. Both use dual-channel memory buses. The Core 3 100U has no ECC memory support, and neither does the Core Ultra X7.

PCIe connectivity differs. The Core 3 100U provides Gen 4 with 8 lanes, while the Core Ultra X7 provides Gen 5 with 4 lanes. The Core Ultra X7's PCIe Gen 5 lanes offer higher per-lane bandwidth, but fewer total lanes, which may affect expandability in some mobile designs.

The Core Ultra X7 368H has a release date of 2026-01-04, while the Core 3 100U was released on 2024-01-07. The two-year gap explains the architectural gulf. The Core 3 100U carries part number SRMYL, while the Core Ultra X7 carries part number SA4R7Q9EJ. Neither processor has an unlocked multiplier.

Specification Differences

The Intel Core Ultra X7 368H has 16 cores and 16 threads, while the Intel Core 3 100U has 6 cores and 8 threads. The Core Ultra X7's base clock is 2.00 GHz, compared to 1.20 GHz for the Core 3 100U. The boost clock is 5.00 GHz versus 4.70 GHz. The Core Ultra X7 has a TDP of 25 watts, while the Core 3 100U has a TDP of 15 watts.

The sockets are incompatible. The Core 3 100U uses Intel BGA 1744, while the Core Ultra X7 uses Intel BGA 2540. The Core 3 100U is built on Raptor Lake architecture with a 10 nm process, while the Core Ultra X7 uses Panther Lake architecture with a 3 nm process. The Core 3 100U belongs to the Core 3 generation (Raptor Lake-U), while the Core Ultra X7 belongs to the Ultra X7 generation (Panther Lake-H) and the Core Ultra Series 3.

Cache sizes differ at every level. The Core 3 100U has 80 KB L1 per core, 1.25 MB L2 per core, and 10 MB shared L3. The Core Ultra X7 has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3. Memory support differs: DDR4 and DDR5 for the Core 3 100U, versus LPDDR5X only for the Core Ultra X7. The Core Ultra X7's memory bandwidth is listed at 153.6 GB/s, while the Core 3 100U has no listed bandwidth. PCIe differs: Gen 4 with 8 lanes for the Core 3 100U, Gen 5 with 4 lanes for the Core Ultra X7. Integrated graphics differ, with UHD Graphics 64EU on the Core 3 100U and Arc B390 on the Core Ultra X7. Release dates differ, with the Core 3 100U launching on 2024-01-07 and the Core Ultra X7 on 2026-01-04. The Core 3 100U has a launch MSRP of $426, while the Core Ultra X7 has no recorded launch MSRP.

Where Each One Wins

The Intel Core Ultra X7 368H wins every recorded benchmark, so the more useful question is which workloads show the largest and smallest gaps. The Core Ultra X7 is most dominant in PassMark find prime numbers, where it leads by -83.8 percent, and in floating point math, where it leads by -73.2 percent. These are compute-heavy tasks that benefit from more cores, higher clocks, and a newer process node. The Core Ultra X7 also excels in extended instructions (-69.2 percent) and physics (-69.3 percent), indicating strong SIMD and simulation performance.

The Intel Core 3 100U's relative strength is in single-threaded work. Its PassMark single-thread score of 3506 is only -12.5 percent behind the Core Ultra X7's 4005. In integer math, the gap narrows to -55.1 percent, the smallest multi-threaded deficit. Data compression is also comparatively close at -56.4 percent. These results suggest the Core 3 100U is not embarrassed in lightly threaded or integer-bound scenarios, even though it still loses.

For a user focused on battery-conscious mobile workloads, the Core 3 100U's 15 watt TDP is lower than the Core Ultra X7's 25 watts, which could matter in fanless or ultra-portable designs. But the performance data shows no workload category where the Core 3 100U is genuinely competitive, only a few where the gap is less severe.

The Verdict

The data supports a clear split. The Intel Core Ultra X7 368H is the superior processor in every recorded benchmark, with its largest advantages in integer-heavy and floating-point workloads, and its smallest in single-threaded tests. It offers 16 cores versus 6, a higher base and boost clock, a 3 nm process against 10 nm, larger caches at every level, and a higher average benchmark score of 40518 versus 16148. Its 87th percentile ranking places it among high-end mobile processors, with nearest rivals including the AMD Ryzen 9 7940H and the Intel Xeon 6507P.

The Intel Core 3 100U, by contrast, sits at the 70th percentile, competing with the Intel Core i7-10850H and AMD Ryzen 5 4600H. It has a lower TDP of 15 watts, which may appeal to designs prioritizing power efficiency, and its single-thread performance is only -12.5 percent behind in PassMark single-thread. For users who primarily run lightly threaded applications and want a lower-power part, the Core 3 100U remains functional. For any workload that scales with cores, cache, or clock speed, the Core Ultra X7 368H is the decisive choice. The benchmark results do not show a single test where the Core 3 100U wins, and the architectural gap between Raptor Lake on 10 nm and Panther Lake on 3 nm is reflected in every recorded score.