Intel Core 3 100U vs Intel Core Ultra 7 270K Plus Comparison

Head-to-Head Benchmarks

The benchmark data records 17 head-to-head comparisons between the Intel Core 3 100U and the Intel Core Ultra 7 270K Plus. The Core Ultra 7 270K Plus wins every single test, with no wins recorded for the Core 3 100U. The margins, however, vary considerably across workload types, which reveals the nature of each processor's advantage.

The largest single-core gap appears in Cinebench R20 single-core, where the Core Ultra 7 270K Plus scores 3453 against the Core 3 100U's 629, a delta of -81.8% for the Core 3 100U. The same delta appears in Cinebench R20 multi-core, with the Core Ultra 7 270K Plus posting 24461 versus 4462. In Cinebench R15 multi-core, the Core Ultra 7 270K Plus leads by an even wider relative margin: 6656 against 1070, a delta of -83.9%. The Core 3 100U's closest multi-core result comes in Cinebench R23, where it scores 10624 against the Core Ultra 7 270K Plus's 44253, a delta of -76%.

Single-core performance tells a more nuanced story. In PassMark single-thread, the Core Ultra 7 270K Plus scores 5068 against the Core 3 100U's 3506, a delta of -30.8%. That is the smallest margin in the entire dataset. Cinebench R23 single-core shows a -38.5% delta, with the Core Ultra 7 270K Plus at 2439 and the Core 3 100U at 1499. Cinebench R15 single-core sits at -57.6%, with scores of 354 and 150 respectively. These results indicate that while the Core Ultra 7 270K Plus holds a clear lead in every single-threaded test, the Core 3 100U is comparatively less disadvantaged in those workloads than in multi-threaded ones.

The largest deltas appear in PassMark specialized workloads. The find prime numbers test shows the Core Ultra 7 270K Plus at 615 against the Core 3 100U's 52, a delta of -91.5%. Floating point math shows a -87.7% delta, with scores of 229491 and 28322. Extended instructions show -87.6%, with 63506 versus 7894. Data encryption shows -86.2%, with 59097 versus 8128. These four tests represent the most extreme performance separations in the dataset.

Other PassMark tests show consistent leads in the -77% to -84% range. Integer math: 175986 versus 39580, a -77.5% delta. Physics: 4064 versus 876, a -78.4% delta. Multi-thread: 68574 versus 12522, a -81.7% delta. Data compression: 804322 versus 136497, a -83% delta. Random string sorting: 96945 versus 15191, a -84.3% delta.

The average benchmark score across all tests reinforces the overall picture. The Core Ultra 7 270K Plus records an average score of 93785, while the Core 3 100U averages 16148. The Core Ultra 7 270K Plus sits at the 96th percentile of all CPUs in the database, while the Core 3 100U sits at the 70th percentile.

Where Each One Wins

The Core 3 100U wins no benchmark tests in this dataset. Its only relative strengths appear in the narrowness of the deltas. In PassMark single-thread, the Core Ultra 7 270K Plus leads by -30.8%, which is the smallest gap recorded. In Cinebench R23 single-core, the lead is -38.5%. These results indicate that the Core 3 100U's per-core performance, while clearly behind, is closer to the Core Ultra 7 270K Plus than its multi-threaded performance is.

The Core 3 100U's data also shows where it lands among its nearest rivals. Its average benchmark score of 16148 sits within 1.2% of four comparable processors: the Intel Core i7-10850H at 16204 (-0.3%), the Intel Core i5-10600KF at 16228 (-0.5%), the Intel Core i7-1260U at 16320 (-1.1%), and the AMD Ryzen 5 4600H at 16341 (-1.2%). The Core 3 100U trails all four by small margins.

The Core Ultra 7 270K Plus, by contrast, sits at the 96th percentile and its average score of 93785 places it within 2.1% of four server-class rivals. The Intel Xeon 6520P matches it almost exactly at 93786, a delta of 0%. The AMD EPYC 4564P scores 95183, a -1.5% delta from the Core Ultra 7 270K Plus's perspective. The AMD EPYC 9175F scores 95615, a -1.9% delta. The AMD EPYC 4565P scores 95764, a -2.1% delta. The Core Ultra 7 270K Plus trails all four, but the margins are thin.

For use-case analysis, the data splits cleanly. The Core Ultra 7 270K Plus dominates every workload category in the benchmark suite. The Core 3 100U shows no category where it takes a win. Its least-bad category is single-threaded performance, but even there, the Core Ultra 7 270K Plus leads by at least 30.8% in every test.

Architecture Differences

The two processors differ substantially in architecture. The Core 3 100U uses Raptor Lake, specifically the Raptor Lake-U codename, built on Intel's 10 nm process. The Core Ultra 7 270K Plus uses the Arrow Lake Refresh codename, built on TSMC's 3 nm process. The Core Ultra 7 270K Plus uses 17,800 million transistors on a 243 mm² die; the Core 3 100U's transistor count and die size are not recorded in the database.

Core counts differ sharply. The Core 3 100U has 6 cores and 8 threads. The Core Ultra 7 270K Plus has 24 cores and 24 threads. The Core 3 100U's thread count exceeds its core count, indicating hyper-threading support. The Core Ultra 7 270K Plus has equal core and thread counts, indicating no hyper-threading.

Cache hierarchies differ at every level. The Core 3 100U has 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 10 MB of shared L3 cache. The Core Ultra 7 270K Plus has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 36 MB of shared L3 cache. The Core Ultra 7 270K Plus's L3 cache is 3.6 times larger in total, and its per-core L2 cache is 2.4 times larger.

Clock speeds also differ. The Core 3 100U has a base clock of 1.20 GHz and a boost clock of 4.70 GHz. The Core Ultra 7 270K Plus has a base clock of 3.70 GHz and a boost clock of 5.50 GHz. The Core Ultra 7 270K Plus's base clock is over three times higher, and its boost clock is 0.80 GHz higher.

Memory support diverges. The Core 3 100U supports both DDR4 and DDR5 memory in a dual-channel configuration. The Core Ultra 7 270K Plus supports only DDR5, also dual-channel, with a recorded memory bandwidth of 115.2 GB/s. The Core 3 100U's memory bandwidth is not recorded. ECC memory support differs: the Core 3 100U does not support ECC, while the Core Ultra 7 270K Plus does.

PCIe capabilities differ. The Core 3 100U offers PCIe Gen 4 with 8 lanes (CPU only). The Core Ultra 7 270K Plus offers PCIe Gen 5 with 20 lanes (CPU only). The Core Ultra 7 270K Plus also has an unlocked multiplier; the Core 3 100U does not.

Integrated graphics differ in name but share a 64 EU count. The Core 3 100U uses UHD Graphics 64EU. The Core Ultra 7 270K Plus uses Arc Xe-LPG Graphics 64EU.

Market segment and socket also differ. The Core 3 100U is a mobile processor on Intel BGA 1744. The Core Ultra 7 270K Plus is a desktop processor on Intel Socket 1851. The Core 3 100U has a TDP of 15 watts, while the Core Ultra 7 270K Plus has a TDP of 125 watts. Both parts are listed as Active in production status.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 270K Plus has 24 cores, while the Intel Core 3 100U has 6 cores.

Q: How much L3 cache does each processor have?

A: The Core 3 100U has 10 MB of shared L3 cache. The Core Ultra 7 270K Plus has 36 MB of shared L3 cache.

Q: Do both processors support ECC memory?

A: No. The Core 3 100U does not support ECC memory. The Core Ultra 7 270K Plus does support ECC memory.

Q: What is the largest single-core performance gap between the two?

A: The largest single-core gap is in Cinebench R20 single-core, where the Core Ultra 7 270K Plus scores 3453 against the Core 3 100U's 629, a delta of -81.8%.

Q: What is the smallest performance gap between the two?

A: The smallest gap is in PassMark single-thread, where the Core Ultra 7 270K Plus scores 5068 against the Core 3 100U's 3506, a delta of -30.8%.

Q: Which processor has a higher boost clock?

A: The Core Ultra 7 270K Plus has a boost clock of 5.50 GHz. The Core 3 100U has a boost clock of 4.70 GHz.

The Verdict

The benchmark data is unambiguous. The Intel Core Ultra 7 270K Plus wins all 17 head-to-head tests, with deltas ranging from -30.8% to -91.5% against the Core 3 100U. The Core 3 100U records no wins in any category.

The Core Ultra 7 270K Plus is the clear choice for any workload that benefits from multi-threaded performance. Its 24 cores, 24 threads, 36 MB of L3 cache, and 5.50 GHz boost clock deliver Cinebench R23 multi-core scores of 44253, which is 4.2 times the Core 3 100U's 10624. In PassMark multi-thread, it scores 68574 against 12522, a 5.5 times advantage.

The Core 3 100U's only relative strength is that its single-threaded performance is closer to the Core Ultra 7 270K Plus than its multi-threaded performance is. In PassMark single-thread, it trails by -30.8%, and in Cinebench R23 single-core, it trails by -38.5%. These are still substantial gaps, but they are the smallest in the dataset.

The Core 3 100U sits at the 70th percentile of all CPUs, with an average benchmark score of 16148. Its nearest rivals are all within 1.2%, including the Intel Core i7-10850H and the AMD Ryzen 5 4600H. The Core Ultra 7 270K Plus sits at the 96th percentile, with an average score of 93785, and its nearest rivals are server-class processors from Intel's Xeon line and AMD's EPYC line.

For users selecting a processor based on this data, the choice is determined by workload and platform. The Core Ultra 7 270K Plus, with its desktop socket, 125 watt TDP, unlocked multiplier, and PCIe Gen 5 support, is designed for high-performance desktop computing. The Core 3 100U, with its mobile BGA 1744 socket, 15 watt TDP, and DDR4/DDR5 support, is designed for mobile systems where power efficiency matters. The benchmark data shows that the Core Ultra 7 270K Plus outperforms the Core 3 100U in every measured category.

Specification Differences

| Specification | Intel Core 3 100U | Intel Core Ultra 7 270K Plus |

| --- | --- | --- |

| Cores | 6 | 24 |

| Threads | 8 | 24 |

| Base Clock | 1.20 GHz | 3.70 GHz |

| Boost Clock | 4.70 GHz | 5.50 GHz |

| TDP | 15 W | 125 W |

| Socket | Intel BGA 1744 | Intel Socket 1851 |

| Codename | Raptor Lake-U | Arrow Lake Refresh |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Transistors | Not recorded | 17,800 million |

| Die Size | Not recorded | 243 mm² |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 3 MB (per core) |

| L3 Cache | 10 MB (shared) | 36 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bandwidth | Not recorded | 115.2 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 4, 8 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 64EU | Arc Xe-LPG Graphics 64EU |

| Market Segment | Mobile | Desktop |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | $426 | $299 |