Intel Core 9 270H vs Intel Core Ultra 5 250KF Plus Comparison

Head-to-Head Benchmarks

The benchmark data delivers a decisive verdict: the Intel Core Ultra 5 250KF Plus wins every single head-to-head comparison, 17 out of 17 tests. The Intel Core 9 270H does not record a single victory across the entire benchmark suite. The margins are substantial, ranging from a 16% gap in single-threaded workloads to a 75.2% deficit in prime number computation.

The most dramatic separation appears in Cinebench R23 multi-core, where the Core Ultra 5 250KF Plus scores 42718 against the Core 9 270H's 18000, a 57.9% advantage. This is the largest gap in the rendering benchmarks and signals a fundamental difference in sustained multi-threaded capability. The single-core R23 result is even more lopsided in percentage terms: 6030 versus 2040, a 66.2% lead for the Ultra 5. The Core 9 270H's single-core boost clock of 5.80 GHz does not translate into competitive per-thread performance against the Ultra 5's 5.30 GHz, indicating architectural efficiency differences matter more than raw clock speed.

The PassMark suite reinforces the pattern. In integer math, the Ultra 5 scores 123030 against 97654, a 20.6% edge, the narrowest margin of any test. Floating point math shows a 55.8% gap (159824 versus 70640). Data compression favors the Ultra 5 by 39.7% (553155 versus 333785), while data encryption shows a 53.1% gap (41292 versus 19369). Extended instructions testing delivers a 53.2% difference (42880 versus 20079). The multithread score of 50146 versus 28764 represents a 42.6% advantage, and physics simulation shows a 38.2% gap (3183 versus 1966). Random string sorting favors the Ultra 5 by 45.1% (67209 versus 36867).

The single-thread PassMark score of 4698 versus 3944 is the closest result at 16%, yet still a clear win for the Ultra 5. All other tests show gaps between 20.6% and 75.2%. The average benchmark score reflects this dominance: the Ultra 5 averages 66159 across all tests, while the Core 9 270H averages 38335. The Ultra 5 sits in the 93rd percentile of all CPUs in the database, compared to the 86th percentile for the Core 9 270H.

Architecture Differences

The two processors come from fundamentally different design generations. The Intel Core 9 270H uses Raptor Lake architecture with the Raptor Lake-H codename, built on Intel's 10 nm process. The Intel Core Ultra 5 250KF Plus belongs to the Core Ultra Series 2 and uses Arrow Lake Refresh architecture, manufactured by TSMC on a 3 nm process. This process node difference, from 10 nm to 3 nm, explains much of the efficiency and performance gap.

The transistor counts differ dramatically. The Ultra 5 packs 17,800 million transistors on a 243 mm² die, while the Core 9 270H has no transistor or die size data recorded. The Ultra 5's cache hierarchy is larger at every level: 192 KB L1 per core versus 80 KB, 3 MB L2 per core versus 2 MB, and 30 MB shared L3 versus 24 MB. These cache advantages directly contribute to the Ultra 5's superior single-thread and multi-thread results.

Core and thread configurations also diverge sharply. The Core 9 270H has 14 cores and 20 threads, indicating a hybrid architecture with performance and efficiency cores. The Ultra 5 has 18 cores and 18 threads, suggesting a configuration without simultaneous multithreading. Despite having fewer threads than the Core 9's 20, the Ultra 5's 18 full cores deliver far higher multi-core scores, confirming that core quality and architecture efficiency outweigh raw thread count.

The socket and platform targets differ completely. The Core 9 270H uses Intel BGA 1744 and belongs to the mobile market segment. The Ultra 5 uses Intel Socket 1851 and is a desktop part. The Ultra 5 carries a 125 TDP versus the Core 9's 45 TDP, reflecting the desktop power envelope. PCIe connectivity also differs: the Ultra 5 provides Gen 5 with 20 CPU lanes, while the Core 9 offers Gen 5 with 8 lanes. The Ultra 5 supports ECC memory, while the Core 9 does not. The Ultra 5 has no integrated graphics, while the Core 9 includes Iris Xe Graphics with 96 execution units. The Core 9 supports both DDR4 and DDR5 memory, while the Ultra 5 is DDR5-only. The Ultra 5's memory bandwidth is recorded at 115.2 GB/s, with no equivalent figure for the Core 9.

Where Each One Wins

Given that the Intel Core Ultra 5 250KF Plus wins all 17 head-to-head tests, the use-case split is heavily one-sided. The Ultra 5 dominates every workload category represented in the benchmark suite. For multi-threaded rendering, the Cinebench R23 multi-core score of 42718 versus 18000 positions the Ultra 5 as the clear choice for CPU-bound creative workloads. Its 57.9% advantage in that test and 42.6% lead in PassMark multithread indicate strong scaling across all cores.

The Ultra 5 also wins in single-threaded workloads, which is surprising given the Core 9's higher boost clock. The R23 single-core score of 6030 versus 2040, a 66.2% advantage, suggests the Arrow Lake architecture delivers far more instructions per clock. The PassMark single-thread score of 4698 versus 3944 confirms this, though the margin narrows to 16% in that specific test.

For data-intensive tasks, the Ultra 5 leads in compression by 39.7%, encryption by 53.1%, and extended instructions by 53.2%. The floating point math advantage of 55.8% and integer math advantage of 20.6% cover scientific and general computation. The prime number test shows the largest gap at 75.2%, which indicates a substantial advantage in integer-heavy algorithmic workloads. Physics simulation favors the Ultra 5 by 38.2%, and random string sorting by 45.1%.

The Intel Core 9 270H does not win any category. Its only potential advantage lies outside the benchmark data, such as its integrated graphics capability (which the Ultra 5 lacks entirely) and its lower 45 TDP for mobile systems. Within the recorded measurements, the Core 9 270H has no winning use case.

Specification Differences

The specification table shows clear divergences between the two processors. The Core 9 270H has 14 cores and 20 threads, while the Ultra 5 has 18 cores and 18 threads. Base clocks differ: 2.70 GHz for the Core 9 versus 4.20 GHz for the Ultra 5. Boost clocks: 5.80 GHz versus 5.30 GHz. TDP: 45 versus 125. The process node shifts from 10 nm to 3 nm, and the foundry from Intel to TSMC.

Cache sizes: L1 is 80 KB per core for the Core 9 and 192 KB per core for the Ultra 5. L2 is 2 MB per core versus 3 MB per core. L3 is 24 MB shared versus 30 MB shared. Memory support: DDR4 and DDR5 for the Core 9, DDR5 only for the Ultra 5. Memory bus is dual-channel for both, with the Ultra 5 recording 115.2 GB/s bandwidth. ECC memory is false for the Core 9 and true for the Ultra 5. PCIe: Gen 5 with 8 lanes versus Gen 5 with 20 lanes. Integrated graphics: Iris Xe Graphics 96EU for the Core 9, N/A for the Ultra 5.

Market segment: mobile for the Core 9, desktop for the Ultra 5. Socket: BGA 1744 versus Socket 1851. The Ultra 5 has an unlocked multiplier, while the Core 9 does not. Release dates differ, with the Core 9 released in 2024 and the Ultra 5 in 2026. The launch MSRP for the Core 9 is $697, while the Ultra 5 has a launch MSRP of $184. The Ultra 5's transistor count of 17,800 million and die size of 243 mm² have no recorded equivalents for the Core 9.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core Ultra 5 250KF Plus averages 66159 across all benchmark tests, while the Intel Core 9 270H averages 38335. This puts the Ultra 5 in the 93rd percentile of all CPUs and the Core 9 in the 86th percentile.

Q: How large is the Cinebench R23 multi-core gap?

A: The Ultra 5 scores 42718 in Cinebench R23 multi-core, compared to 18000 for the Core 9 270H. This is a 57.9% advantage for the Ultra 5.

Q: Does the Core 9 270H win any head-to-head benchmark?

A: No. The recorded data shows the Ultra 5 winning all 17 head-to-head tests. The Core 9 has zero wins in the comparison.

Q: What are the core and thread counts for each processor?

A: The Core 9 270H has 14 cores and 20 threads. The Ultra 5 has 18 cores and 18 threads. Despite having more threads, the Core 9 trails significantly in multi-threaded benchmarks.

Q: Which processor supports ECC memory?

A: The Intel Core Ultra 5 250KF Plus supports ECC memory. The Intel Core 9 270H does not.

Q: What is the narrowest benchmark margin between the two?

A: The PassMark single-thread test shows the smallest gap at 16%, with the Ultra 5 scoring 4698 versus 3944 for the Core 9. This is still a clear win for the Ultra 5.

The Verdict

The benchmark data supports only one conclusion: the Intel Core Ultra 5 250KF Plus is the superior processor in every measured category. It wins all 17 head-to-head tests, with margins from 16% to 75.2%. The average benchmark score of 66159 places it in the 93rd percentile, well above the Core 9 270H's 86th percentile and 38335 average. The architecture differences, specifically the 3 nm TSMC process versus 10 nm Intel, larger caches, and higher core count, explain this consistent dominance.

The Core 9 270H's sole advantages are its mobile form factor with a 45 TDP, integrated graphics, and support for both DDR4 and DDR5 memory. These are platform features, not performance advantages. The Ultra 5's unlocked multiplier, ECC support, and 20 PCIe Gen 5 lanes make it the more capable desktop part for workloads that benefit from those features.

The nearest rival data for the Ultra 5 shows it trading within 1.1% of the AMD Ryzen 9 7950X3D and the Intel Core Ultra 5 250K Plus, confirming it belongs in the high-end desktop tier. The Core 9 270H sits within 0.3% of the AMD Ryzen 7 250 and Intel Core i5-13600HX, placing it in the mid-range mobile segment. For any user selecting between these two specific processors based on the recorded measurements, the Intel Core Ultra 5 250KF Plus is the definitive choice across rendering, computation, and data processing workloads.