Intel Core 3 100U vs Intel Core Ultra 5 225T Comparison

FAQ

Q: How does the Intel Core 3 100U compare to the Intel Core Ultra 5 225T in overall benchmark averages?

A: The Core 3 100U has an average benchmark score of 16148, placing it in the 70th percentile of all CPUs. The Core Ultra 5 225T has an average score of 30468, placing it in the 82nd percentile. The Ultra 5’s nearest rival, the Intel Core i9-11980HK, scores 30422, a 0.2% difference, while the Core 3’s closest rival, the Intel Core i7-10850H, scores 16204, a -0.3% difference.

Q: Which processor wins in single-threaded performance?

A: The Intel Core Ultra 5 225T wins in the PassMark single-thread test with a score of 4348, compared to the Core 3 100U’s 3506. This represents a 19.4% advantage for the Ultra 5 in that specific workload.

Q: What is the difference in core and thread counts?

A: The Intel Core 3 100U has 6 cores and 8 threads, while the Intel Core Ultra 5 225T has 10 cores and 10 threads. The Ultra 5 has no hyper-threading, as its thread count equals its core count.

Q: Are there any benchmark categories where the Core 3 100U beats the Core Ultra 5 225T?

A: No. In all 17 head-to-head benchmark comparisons recorded in the database, the Intel Core Ultra 5 225T is the winner. The Core 3 100U has zero wins in this matchup.

Q: What are the manufacturing process nodes for each chip?

A: The Intel Core 3 100U is built on Intel’s 10 nm process, while the Intel Core Ultra 5 225T uses a 3 nm node fabricated by TSMC. The Ultra 5 also has a transistor count of 17,800 million and a die size of 243 mm².

Q: How do their memory support options differ?

A: The Core 3 100U supports both DDR4 and DDR5 memory, while the Core Ultra 5 225T supports only DDR5. Both use a dual-channel memory bus, but the Ultra 5 has a recorded memory bandwidth of 102.4 GB/s, a figure not listed for the Core 3.

Architecture Differences

The two processors come from distinct architectural generations. The Intel Core 3 100U is based on Raptor Lake, specifically the Raptor Lake-U codename, and belongs to the Core 3 generation. The Intel Core Ultra 5 225T uses the Arrow Lake architecture, with the codename Arrow Lake-S, and is part of the Core Ultra Series 2. This generational split is visible in their process nodes: the Core 3 uses a 10 nm node from Intel’s own foundry, while the Core Ultra 5 uses a 3 nm node from TSMC. The Core Ultra 5 also lists 17,800 million transistors and a die size of 243 mm², while these figures are not recorded for the Core 3.

Cache hierarchies differ substantially. The Core 3 100U has 80 KB of L1 cache per core, 1.25 MB of L2 per core, and 10 MB of shared L3 cache. The Core Ultra 5 225T has 192 KB of L1 per core, 3 MB of L2 per core, and 20 MB of shared L3. This means the Ultra 5 has more than double the L3 capacity and significantly larger per-core L1 and L2 allocations.

Feature sets also diverge. The Core 3 100U supports DDR4 and DDR5 memory, whereas the Core Ultra 5 225T supports only DDR5. The Ultra 5 has a recorded memory bandwidth of 102.4 GB/s, while the Core 3 does not have a bandwidth figure in the database. PCIe support is another point of difference: the Core 3 uses Gen 4 with 8 CPU lanes, while the Core Ultra 5 uses Gen 5 with 20 CPU lanes. Integrated graphics differ as well, with the Core 3 featuring UHD Graphics 64EU and the Core Ultra 5 featuring Arc Xe-LPG Graphics 16EU.

The market segments are not the same. The Core 3 100U is a mobile processor, while the Core Ultra 5 225T is a desktop processor. This is reflected in their sockets: the Core 3 uses Intel BGA 1744, and the Core Ultra 5 uses Intel Socket 1851. The Core 3 has a TDP of 15 watts, while the Core Ultra 5 has a TDP of 65 watts. The Core 3 was released on 2024-01-07, and the Core Ultra 5 was released on 2024-12-31. Both are listed as Active in production status, and neither has an unlocked multiplier.

Head-to-Head Benchmarks

The benchmark data shows a consistent and decisive advantage for the Intel Core Ultra 5 225T across every recorded test. The smallest margin is in PassMark single-thread performance, where the Ultra 5 scores 4348 against the Core 3’s 3506, a 19.4% difference. This is the only category where the gap is below 30%.

Multi-threaded and multi-core workloads show much larger disparities. In Cinebench R23 multi-core, the Ultra 5 scores 21971 versus the Core 3’s 10624, a 51.6% difference. Cinebench R20 multi-core shows a similar pattern: 9227 for the Ultra 5 against 4462 for the Core 3, a 51.6% gap. Cinebench R15 multi-core yields 2214 versus 1070, a 51.7% margin. PassMark multithread scores are 25358 for the Ultra 5 and 12522 for the Core 3, a 50.6% difference.

Single-core Cinebench results follow the same trend. Cinebench R23 single-core has the Ultra 5 at 3101 and the Core 3 at 1499, a 51.7% gap. Cinebench R20 single-core shows 1302 against 629, a 51.7% difference, and Cinebench R15 single-core shows 312 against 150, a 51.9% margin.

Specialized PassMark tests reveal where the architectural advantages are most pronounced. The largest relative win for the Ultra 5 is in PassMark find prime numbers, where it scores 284 versus 52, a 81.7% difference. PassMark floating point math shows 82751 versus 28322, a 65.8% gap. PassMark extended instructions yields 20083 against 7894, a 60.7% difference. PassMark physics has the Ultra 5 at 2053 and the Core 3 at 876, a 57.3% margin. PassMark data encryption shows 18289 versus 8128, a 55.6% gap.

Other PassMark tests also favor the Ultra 5, though with slightly smaller margins. PassMark random string sorting has 28774 against 15191, a 47.2% difference. PassMark data compression scores 233998 versus 136497, a 41.7% gap. PassMark integer math is the closest of the multi-threaded tests, with 59543 for the Ultra 5 and 39580 for the Core 3, a 33.5% difference.

The overall benchmark averages reflect this dominance. The Core 3 100U has an average score of 16148, while the Core Ultra 5 225T has an average score of 30468. This puts the Ultra 5 at the 82nd percentile of all CPUs, compared to the Core 3’s 70th percentile. The nearest rivals for each chip confirm the gap: the Core 3 sits near the Intel Core i7-10850H (16204, -0.3% delta) and the AMD Ryzen 5 4600H (16341, -1.2% delta), while the Ultra 5 sits near the Intel Core i9-11980HK (30422, 0.2% delta) and the Intel Core i5-13600H (30548, -0.3% delta).

The Verdict

The data indicates a clear performance hierarchy. The Intel Core Ultra 5 225T is the stronger processor in every measured category, with an average benchmark score nearly double that of the Core 3 100U. The 82nd percentile ranking for the Ultra 5, versus the 70th percentile for the Core 3, places them in different performance tiers entirely.

The Core 3 100U is a mobile chip with a 15 watt TDP, designed for efficiency and compact systems. Its 6 cores and 8 threads, combined with a 1.20 GHz base clock and 4.70 GHz boost clock, position it as a capable processor for its segment. The Core Ultra 5 225T, with a 65 watt TDP, 10 cores and 10 threads, a 2.50 GHz base clock and 4.90 GHz boost clock, is a desktop part that delivers substantially higher throughput.

The choice between them depends on the system form factor and performance requirements. The Core 3 100U belongs in mobile platforms where power draw is a primary constraint. The Core Ultra 5 225T is for desktop systems where the higher TDP is acceptable and the performance advantage is needed. There is no benchmark evidence in the database to support selecting the Core 3 over the Ultra 5 for raw performance, as the Ultra 5 wins all 17 head-to-head tests.

Specification Differences

The two processors differ in several recorded specifications. Core count is 6 for the Core 3 100U versus 10 for the Core Ultra 5 225T. Thread count is 8 versus 10. Base clock is 1.20 GHz for the Core 3 and 2.50 GHz for the Ultra 5. Boost clock is 4.70 GHz versus 4.90 GHz. TDP is 15 watts versus 65 watts.

Socket types are not interchangeable: the Core 3 uses Intel BGA 1744, while the Ultra 5 uses Intel Socket 1851. Architecture is Raptor Lake for the Core 3 and Arrow Lake for the Ultra 5. Process node is 10 nm for the Core 3 and 3 nm for the Ultra 5, with the foundry being Intel for the former and TSMC for the latter. The Ultra 5 lists 17,800 million transistors and a 243 mm² die size, while these are not recorded for the Core 3.

Cache specifications differ at every level. L1 cache is 80 KB per core for the Core 3 and 192 KB per core for the Ultra 5. L2 cache is 1.25 MB per core versus 3 MB per core. L3 cache is 10 MB shared for the Core 3 and 20 MB shared for the Ultra 5.

Memory support is DDR4 and DDR5 for the Core 3, but only DDR5 for the Ultra 5. The Ultra 5 has a memory bandwidth of 102.4 GB/s, while the Core 3 has no recorded bandwidth. PCIe support is Gen 4 with 8 lanes for the Core 3 and Gen 5 with 20 lanes for the Ultra 5. Integrated graphics are UHD Graphics 64EU for the Core 3 and Arc Xe-LPG Graphics 16EU for the Ultra 5.

Market segment is Mobile for the Core 3 and Desktop for the Ultra 5. Release dates are 2024-01-07 for the Core 3 and 2024-12-31 for the Ultra 5. The Core 3 has a launch MSRP of $426, while the Ultra 5 has no recorded launch MSRP. Neither processor has an unlocked multiplier.

Where Each One Wins

The Intel Core Ultra 5 225T wins in every recorded benchmark category, so the analysis of where each one wins is based on system context rather than benchmark outcomes.

The Core 3 100U is suited for mobile applications. Its 15 watt TDP and BGA 1744 socket indicate a soldered, low-power design for laptops and compact devices. The support for both DDR4 and DDR5 memory provides flexibility in system design. Its integrated UHD Graphics 64EU serves basic display and compute needs without a discrete GPU. The nearest rivals for the Core 3 include the Intel Core i7-1260U (16320 average, -1.1% delta), which is also a low-power mobile part, showing that its performance class is consistent with ultra-portable systems.

The Core Ultra 5 225T is intended for desktop systems. Its 65 watt TDP, Socket 1851, and 20 PCIe Gen 5 lanes allow for higher-bandwidth peripherals and expansion. The 3 nm process from TSMC with 17,800 million transistors and 243 mm² die size enables a higher transistor density. The Arc Xe-LPG Graphics 16EU provides integrated graphics, though the desktop segment often pairs such processors with discrete GPUs. The 102.4 GB/s memory bandwidth with DDR5-only support indicates a newer memory platform.

In specific workloads, the Ultra 5’s advantages are largest in prime number finding (81.7% ahead), floating point math (65.8% ahead), and extended instructions (60.7% ahead). These suggest strengths in scientific and mathematical computation. Its smallest wins are in PassMark single-thread (19.4% ahead) and integer math (33.5% ahead), indicating that single-threaded tasks and integer-heavy workloads see the smallest relative gains.

For a system where power efficiency and mobility are the primary goals, the Core 3 100U is the only option of the two, as its mobile socket and 15 watt TDP are incompatible with desktop requirements. For any performance-focused desktop build, the Core Ultra 5 225T is the clear choice based on the recorded data, with an average benchmark score 88.6% higher than the Core 3 and a win in all 17 head-to-head comparisons.