Intel Core i9-14900T vs Intel Core Ultra 7 356H Comparison

Head-to-Head Benchmarks

The head-to-head data reveals a clear split between the two processors. The Intel Core i9-14900T wins 11 of the 17 recorded comparisons, while the Intel Core Ultra 7 356H takes 6. The margin of victory, however, varies dramatically by workload type.

The largest single win for the i9-14900T comes in Cinebench R23 single-core, where it scores 4348 against the Ultra 7's 2040, a 113.1% advantage. This is a massive gap, suggesting the desktop chip's higher boost clock of 5.50 GHz, compared to 4.70 GHz on the mobile part, plays a decisive role in lightly threaded rendering tasks. The R15 single-core test shows a similar pattern, with the i9-14900T leading by 44.6% (438 versus 303).

Multi-core rendering also favors the i9-14900T, though the margins vary. In Cinebench R23 multi-core, the desktop chip scores 30803 against 18395, a 67.5% lead. The R20 multi-core test shows a narrower 6.5% gap (12937 versus 12153), and R15 multi-core is nearly tied at 3104 versus 3055, a 1.6% edge. This inconsistency across Cinebench versions suggests the i9-14900T's advantage grows as the workload scales longer and more demanding.

Integer math heavily favors the i9-14900T, with a score of 138149 versus 83111, a 66.2% difference. Data compression also goes to the desktop chip, 436066 against 336177, a 29.7% lead. Random string sorting shows a 20.7% advantage for the i9-14900T (49484 versus 40990). Multi-threaded PassMark testing gives the i9-14900T a 6.7% edge (36239 versus 33978), while data encryption is close at 2.7% (27062 versus 26345).

The Ultra 7 356H, meanwhile, posts its biggest win in prime number finding, scoring 327 against 164, a 49.8% advantage for the mobile chip. This is a surprising result given the i9-14900T's overall multi-core dominance. Extended instructions go to the Ultra 7 by 15.2% (27898 versus 23660), and floating-point math favors it by 10.1% (103128 versus 92699). Physics simulation also goes to the Ultra 7, 2895 versus 2245, a 22.5% lead. In single-threaded PassMark testing, the Ultra 7 edges ahead by 1.4% (4072 versus 4016), a narrow but consistent result across both single-thread entries.

Where Each One Wins

The i9-14900T is the clear choice for workloads that depend on high thread counts and sustained multi-core throughput. Its 24 cores and 32 threads, combined with 36 MB of shared L3 cache, deliver decisive wins in Cinebench R23 multi-core, integer math, data compression, and random string sorting. These are tasks that scale with core count and cache capacity, and the desktop chip's 35 W TDP does not prevent it from outperforming the mobile part in these areas.

The Ultra 7 356H, despite having only 16 cores and 16 threads, wins in several specialized math and instruction-heavy tests. Prime number finding, extended instructions, floating-point math, and physics simulation all go to the mobile chip. These results suggest its newer architecture, built on a 3 nm process, handles certain instruction patterns more efficiently. The single-thread PassMark result, where it leads by 1.4%, also indicates that its per-core efficiency can match or slightly exceed the i9-14900T in specific scenarios, even though its boost clock is lower.

The use-case split is therefore not about raw core count but about workload character. For rendering, compression, and general integer-heavy processing, the i9-14900T dominates. For floating-point math, physics, and specialized instruction sets, the Ultra 7 356H holds an edge. The i9-14900T's average benchmark score of 51015 sits at the 90th percentile of all CPUs, while the Ultra 7's 41215 places it at the 87th percentile. The i9-14900T's nearest rival, the Intel Core i7-13850HX, scores 50761 with a 0.5% delta, while the Ultra 9 285T is 0.6% ahead at 51310. The Ultra 7 356H's closest competitor, the AMD Ryzen AI 5 PRO 440, matches it exactly at 41208 with a 0.0% delta.

Architecture Differences

The two processors come from different architectural generations and target different market segments. The i9-14900T is a desktop part from the Core 14th Gen series, built on Raptor Lake architecture with a 10 nm process node. It uses the Intel Socket 1700 and has a die size of 257 mm². The Ultra 7 356H is a mobile processor from the Core Ultra Series 3, built on Panther Lake architecture with a 3 nm process node. It uses the Intel BGA 2540 socket, and its die size is not recorded in the database.

Core configuration differs substantially. The i9-14900T has 24 cores and 32 threads, while the Ultra 7 356H has 16 cores and 16 threads. This means the desktop chip supports hyper-threading across all cores, while the mobile part does not. Cache structures also diverge. The i9-14900T has 80 KB of L1 cache per core, 2 MB of L2 per core, and 36 MB of shared L3. The Ultra 7 356H has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. The mobile chip's larger per-core L1 and L2 caches suggest a design optimized for single-thread efficiency, while the desktop chip's larger L3 pool supports its many-core workloads.

Memory support differs as well. The i9-14900T supports DDR4 and DDR5 in a dual-channel configuration, and it includes ECC memory support. The Ultra 7 356H supports DDR5 and LPDDR5X, also dual-channel, with a recorded memory bandwidth of 115.2 GB/s. The bandwidth figure for the i9-14900T is not recorded. PCIe connectivity also differs: the i9-14900T provides Gen 5 with 16 lanes (CPU only), while the Ultra 7 356H provides Gen 5 with 12 lanes (CPU only).

Integrated graphics are different. The i9-14900T uses UHD Graphics 770, while the Ultra 7 356H uses Intel Xe3 Graphics. Release dates are far apart, with the i9-14900T launching on 2024-01-07 and the Ultra 7 on 2026-01-04. The i9-14900T has a launch MSRP of $549, while no MSRP is recorded for the Ultra 7. Both processors are listed as Active in production status, and neither has an unlocked multiplier.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i9-14900T has 24 cores and 32 threads. The Intel Core Ultra 7 356H has 16 cores and 16 threads.

Q: How large is the single-core performance gap in Cinebench R23?

A: The i9-14900T scores 4348 in Cinebench R23 single-core, while the Ultra 7 356H scores 2040. This gives the i9-14900T a 113.1% advantage.

Q: In which benchmark does the Ultra 7 356H have its largest win?

A: The Ultra 7 356H's largest win is in PassMark find prime numbers, where it scores 327 against the i9-14900T's 164, a 49.8% advantage.

Q: What is the difference in average benchmark scores?

A: The i9-14900T has an average benchmark score of 51015, placing it at the 90th percentile. The Ultra 7 356H has an average score of 41215, placing it at the 87th percentile.

Q: Do both processors support ECC memory?

A: No. The i9-14900T supports ECC memory, while the Ultra 7 356H does not.

Q: What are the boost clock speeds?

A: The i9-14900T boosts to 5.50 GHz, while the Ultra 7 356H boosts to 4.70 GHz.

The Verdict

The data indicates that the Intel Core i9-14900T is the stronger overall processor for multi-threaded and single-threaded rendering workloads. Its wins in Cinebench R23 multi-core and single-core are substantial, and it also leads in integer math, data compression, random string sorting, and multi-threaded PassMark. The 90th percentile ranking and average score of 51015 place it above the Ultra 7 356H's 87th percentile and 41215 average.

The Intel Core Ultra 7 356H, however, wins in several specialized areas. It leads in prime number finding, extended instructions, floating-point math, physics simulation, and single-threaded PassMark. These results indicate that its newer 3 nm Panther Lake architecture delivers better efficiency in specific instruction-heavy workloads, despite fewer cores and a lower boost clock.

For users who prioritize rendering, compression, and general multi-core throughput, the i9-14900T is the clear pick from this data. For workloads involving floating-point math, physics, or specialized instruction sets, the Ultra 7 356H offers measurable advantages. The mobile chip also has the benefit of a lower 25 W TDP compared to the i9-14900T's 35 W, though both are relatively low-power parts for their respective segments.

Specification Differences

| Field | Intel Core i9-14900T | Intel Core Ultra 7 356H |

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

| Series | Core 14th Gen | Core Ultra Series 3 |

| Cores | 24 | 16 |

| Threads | 32 | 16 |

| Base Clock | 1.10 GHz | 1.90 GHz |

| Boost Clock | 5.50 GHz | 4.70 GHz |

| TDP | 35 W | 25 W |

| Socket | Intel Socket 1700 | Intel BGA 2540 |

| Architecture | Raptor Lake | Panther Lake |

| Process Node | 10 nm | 3 nm |

| Die Size | 257 mm² | Not recorded |

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

| L2 Cache | 2 MB (per core) | 2.5 MB (per core) |

| L3 Cache | 36 MB (shared) | 18 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5, LPDDR5X |

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

| ECC Memory | Yes | No |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 5, 12 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 770 | Intel Xe3 Graphics |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-01-07 | 2026-01-04 |

| Launch MSRP | $549 | Not recorded |

| Part Number | SRN3U | SA4RGQ9EU |