Intel Core 9 270H vs Intel Core Ultra 7 356H Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall advantage for the Intel Core Ultra 7 356H, which wins 14 of the 17 head-to-head benchmark comparisons. The Intel Core 9 270H secures only 3 wins, though one of those is a tie in raw score that is credited to the higher-clocked part.

The largest single victory for the Core Ultra 7 356H comes in PassMark's find prime numbers test, where it scores 327 against 112 for the Core 9 270H, a 65.7% advantage. This is an extreme outlier and indicates a fundamental difference in how the two processors handle integer-heavy, branch-dense workloads. The Core Ultra 7 also dominates in extended instructions, scoring 27898 versus 20079, a 28% lead, and in floating point math, where it posts 103128 against 70640, a 31.5% margin. Data encryption shows a 26.5% gap in favor of the Core Ultra 7 (26345 versus 19369), and physics simulation results give it a 32.1% edge (2895 versus 1966).

Multi-core rendering benchmarks consistently favor the Core Ultra 7 356H. In Cinebench R15 multi-core, it scores 3055 versus 2464, a 19.3% lead. Cinebench R20 multi-core shows a 15.5% advantage (12153 versus 10268), and Cinebench R23 multi-core narrows to a 2.1% gap (18395 versus 18000). PassMark multithread results give the Core Ultra 7 a 15.3% lead (33978 versus 28764). Random string sorting also goes to the Core Ultra 7 by 10.1% (40990 versus 36867), and data compression shows a slim 0.7% edge (336177 versus 333785).

The Intel Core 9 270H's wins are concentrated in specific areas. Its largest victory is in PassMark integer math, where it scores 97654 versus 83111, a 17.5% advantage. In Cinebench R15 single-core, it leads by 14.5% (347 versus 303), though this is the oldest Cinebench version in the set. The R20 single-core test tells a different story: the Core Ultra 7 356H wins by 15.5% (1715 versus 1449). The R23 single-core result is a perfect tie at 2040 for both processors, awarded to the Core 9 270H in the database due to its higher boost clock. PassMark single-thread results slightly favor the Core Ultra 7, 4072 versus 3944, a 3.1% margin.

The overall average benchmark score reflects this distribution: the Core Ultra 7 356H averages 41215 across all tests, while the Core 9 270H averages 38335. That is a 7.5% gap in aggregate performance. The Core Ultra 7 also sits at the 87th percentile of all CPUs in the database, one point above the Core 9 270H's 86th percentile.

The Verdict

The benchmark data indicates that the Intel Core Ultra 7 356H is the stronger processor for the majority of workloads. Its wins span multi-core rendering, encryption, extended instruction sets, physics simulation, and memory-intensive sorting tasks. The 65.7% lead in prime number finding and the 31.5% lead in floating point math are not marginal differences; they point to a fundamentally more efficient execution engine for computational workloads.

The Intel Core 9 270H retains a clear edge in integer math, with a 17.5% advantage, and it matches the Core Ultra 7 in Cinebench R23 single-core performance. Its R15 single-core lead is notable but less relevant for modern software that relies on newer instruction paths. For users whose workloads are dominated by integer arithmetic, the Core 9 270H is the better choice. For everything else, the Core Ultra 7 356H delivers higher scores across a broader range of tests.

The overall averages confirm this split. The Core Ultra 7's 41215 average represents a 7.5% improvement over the Core 9 270H's 38335. The nearest rivals in the database reinforce these positions: the Core Ultra 7 356H sits within 0.4% of the AMD Ryzen 9 5900X and 0.1% of the Intel Core Ultra 7 366H, while the Core 9 270H trades blows with the Intel Core Ultra 9 285H (0.1% apart) and the Intel Core i5-13600HX (0.2% apart). The Core 9 270H's closest competitor, the AMD Ryzen 7 250, is only 0.3% ahead, placing it in a different performance tier than the Core Ultra 7 356H.

Architecture Differences

The two processors come from different Intel architecture families. The Intel Core 9 270H uses Raptor Lake, with the codename Raptor Lake-H and the generation label "Core 9 (Raptor Lake Refresh)". It is built on Intel's 10 nm process node. The Intel Core Ultra 7 356H uses Panther Lake, with the codename Panther Lake and the generation label "Ultra 7 (Panther Lake-H)". It is built on Intel's 3 nm process node. Both are manufactured by Intel.

Core and thread counts differ significantly. The Core 9 270H has 14 cores and 20 threads, indicating a hybrid arrangement with performance and efficiency cores. The Core Ultra 7 356H has 16 cores and 16 threads, meaning every core is single-threaded with no Hyper-Threading support. This explains why the Core Ultra 7 wins multi-core tests despite having fewer threads: its additional physical cores and newer architecture overcome the thread count deficit.

Clock speeds show a different trade-off. The Core 9 270H runs at a base clock of 2.70 GHz and boosts to 5.80 GHz. The Core Ultra 7 356H runs at a base clock of 1.90 GHz and boosts to 4.70 GHz. The Core 9 270H has substantially higher clock ceilings, which contributes to its R15 single-core win and its integer math advantage. The Core Ultra 7 compensates with a much larger L1 cache (192 KB per core versus 80 KB per core) and a larger L2 cache (2.5 MB per core versus 2 MB per core), but a smaller shared L3 cache (18 MB versus 24 MB).

Power characteristics diverge sharply. The Core 9 270H has a TDP of 45 watts, while the Core Ultra 7 356H has a TDP of 25 watts. This means the Core Ultra 7 delivers higher overall performance at nearly half the thermal design power. The Core 9 270H's higher TDP supports its higher boost clocks but also implies greater cooling requirements and power draw.

Memory support differs. The Core 9 270H supports DDR4 and DDR5 in a dual-channel configuration. The Core Ultra 7 356H supports DDR5 and LPDDR5X in a dual-channel configuration, with a recorded memory bandwidth of 115.2 GB/s. The Core 9 270H has no memory bandwidth figure in the database. Neither processor supports ECC memory.

PCIe connectivity also differs. The Core 9 270H provides Gen 5 with 8 lanes from the CPU. The Core Ultra 7 356H provides Gen 5 with 12 lanes from the CPU, offering more direct expansion capacity for discrete GPUs or storage devices.

Integrated graphics differ. The Core 9 270H uses Iris Xe Graphics with 96 execution units. The Core Ultra 7 356H uses Intel Xe3 Graphics. The database does not provide benchmark scores for either iGPU, so a direct comparison of graphics performance is not possible from the recorded data.

Sockets and release timing differ. The Core 9 270H uses Intel BGA 1744 and was released on 2024-12-17, with a launch MSRP of $697. The Core Ultra 7 356H uses Intel BGA 2540 and was released on 2026-01-04, with no launch MSRP recorded. Both are active production parts with locked multipliers. The part numbers are SRQ6V for the Core 9 270H and SA4RGQ9EU for the Core Ultra 7 356H.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 356H has 16 cores, while the Intel Core 9 270H has 14 cores. However, the Core 9 270H has 20 threads versus 16 for the Core Ultra 7, because the Core 9 supports two threads per core.

Q: Which processor has the higher boost clock?

A: The Intel Core 9 270H boosts to 5.80 GHz, compared to 4.70 GHz for the Intel Core Ultra 7 356H. The Core 9 also has a higher base clock at 2.70 GHz versus 1.90 GHz.

Q: Which processor performs better in multi-core Cinebench tests?

A: The Intel Core Ultra 7 356H wins all three multi-core Cinebench tests. It leads by 19.3% in R15 (3055 versus 2464), by 15.5% in R20 (12153 versus 10268), and by 2.1% in R23 (18395 versus 18000).

Q: Is there any workload where the Intel Core 9 270H wins?

A: Yes. The Core 9 270H wins PassMark integer math by 17.5% (97654 versus 83111) and Cinebench R15 single-core by 14.5% (347 versus 303). It also ties in Cinebench R23 single-core at 2040 for both processors.

Q: What is the TDP difference between the two?

A: The Intel Core 9 270H has a TDP of 45 watts, while the Intel Core Ultra 7 356H has a TDP of 25 watts. The Core Ultra 7 delivers higher overall benchmark scores at nearly half the TDP.

Q: Which processor has a larger L3 cache?

A: The Intel Core 9 270H has 24 MB of shared L3 cache, compared to 18 MB for the Intel Core Ultra 7 356H. The Core Ultra 7 has larger per-core L1 and L2 caches.

Where Each One Wins

The Intel Core Ultra 7 356H is the clear winner for compute-heavy applications. Its 65.7% lead in prime number finding, 31.5% lead in floating point math, and 28% lead in extended instructions indicate strong performance in scientific computing, financial modeling, and any workload that relies on vectorized arithmetic. The 26.5% advantage in data encryption makes it the better choice for security-related tasks such as full-disk encryption, VPN throughput, and secure communications processing. Physics simulation, with a 32.1% edge, suggests it is also better suited for engineering simulation and game physics calculations.

For multi-threaded productivity, the Core Ultra 7 356H wins every relevant test. Its Cinebench R15, R20, and R23 multi-core leads, combined with a 15.3% PassMark multithread advantage, make it the stronger processor for video rendering, 3D scene compilation, and parallel compilation workloads. The 10.1% lead in random string sorting and 0.7% lead in data compression also point to better performance in database operations and file archiving.

The Intel Core 9 270H wins in a narrower set of scenarios. Its 17.5% integer math advantage makes it the better choice for integer-dominated workloads such as certain encryption algorithms that use integer operations, legacy software, and some types of data processing. Its 14.5% lead in Cinebench R15 single-core and exact tie in R23 single-core mean it is competitive in lightly threaded applications, though the Core Ultra 7 wins the more modern R20 single-core test by 15.5% and PassMark single-thread by 3.1%.

The overall average benchmark gap of 7.5% in favor of the Core Ultra 7 356H, combined with its 87th percentile ranking versus the Core 9 270H's 86th, makes it the more balanced processor for general purpose workloads. The Core 9 270H's higher boost clock and larger L3 cache do not compensate for the Core Ultra 7's architectural advantages in the majority of tests. The Core 9 270H is best reserved for integer-heavy codebases and legacy single-threaded applications, while the Core Ultra 7 356H is the database's recommended choice for everything from rendering to encryption to scientific computation.