Intel Core 7 251TE vs Intel Core i5-14400T Comparison

Head-to-Head Benchmarks

The benchmark data is unambiguous: the Intel Core 7 251TE wins all 17 recorded head-to-head comparisons against the Intel Core i5-14400T. The largest margins appear in integer-heavy and prime-number workloads, where the 251TE delivers 91.5% and 91.8% improvements respectively. PassMark integer math scores 125,739 versus 65,667, while the find prime numbers test records 140 against 73. These results indicate a substantial advantage in arithmetic-heavy processing tasks.

The Cinebench suite shows a consistent pattern of dominance. Multi-core scores across all three Cinebench versions (R15, R20, R23) show the 251TE leading by exactly 48.5% in each case. The R23 multi-core result of 25,518 versus 17,189 highlights a processor that handles heavily threaded workloads with considerable headroom. Single-core Cinebench scores follow the same trend: R15 single-core at 362 versus 244, R20 at 1,512 versus 1,018, and R23 at 3,602 versus 2,426, each showing a 48.4% to 48.5% advantage.

Beyond Cinebench, the 251TE shows strong results in floating-point math, scoring 85,607 against 49,139 for the 14400T, a 74.2% lead. Data encryption performance shows a 67.4% gap, with scores of 22,176 and 13,244. Physics simulation results favor the 251TE by 55.8%, recording 1,938 points versus 1,244. Random string sorting delivers a 57.4% edge, with 39,643 points against 25,181.

The closest contest appears in single-threaded PassMark testing. The 251TE scores 3,568, while the 14400T scores 3,512, a marginal 1.6% difference. This narrow gap suggests that for purely single-threaded desktop responsiveness, the two processors are nearly equivalent, despite the larger differences in multi-core and specialized workloads. Data compression shows a 41.9% advantage for the 251TE, with 334,399 points versus 235,636.

Extended instruction workloads show the smallest multi-core gap at 16.6%, with scores of 16,974 and 14,562. The 251TE also leads the PassMark multi-thread test by 48.5%, recording 30,022 points against 20,223. Across every recorded benchmark, the 251TE outperforms the 14400T, with zero wins recorded for the latter.

FAQ

Q: Which processor has the higher multi-core Cinebench R23 score?

A: The Intel Core 7 251TE scores 25,518, which is 48.5% higher than the Intel Core i5-14400T's 17,189.

Q: How close are the two processors in single-threaded performance?

A: PassMark single-thread scores are nearly identical: 3,568 for the 251TE versus 3,512 for the 14400T, a difference of only 1.6%. Cinebench single-core scores show a larger gap, with the 251TE ahead by 48.4% in R15.

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

A: The biggest margins appear in PassMark integer math and find prime numbers tests, where the 251TE leads by 91.5% and 91.8% respectively.

Q: Do both processors support the same memory types?

A: Yes, both support DDR4 and DDR5 memory in dual-channel configuration. The 251TE has a recorded memory bandwidth of 89.6 GB/s, while the 14400T has no bandwidth figure recorded.

Q: Which processor has more cores and threads?

A: The 251TE has 24 cores and 32 threads, while the 14400T has 10 cores and 16 threads.

Q: Are both processors on the same socket?

A: Yes, both use Intel Socket 1700, and both support ECC memory and PCIe Gen 5 with 16 CPU lanes.

Architecture Differences

The two processors come from different architectural lineages. The Intel Core 7 251TE uses the Bartlett Lake codename and belongs to the Core 7 generation, while the Intel Core i5-14400T uses Raptor Lake-R, part of the Raptor Lake Refresh series. Both are manufactured on a 10 nm process at Intel, and both have a die size of 215 mm². Neither processor has transistor counts recorded, so the data does not reveal differences in transistor density.

The core configurations differ substantially. The 251TE houses 24 cores with 32 threads, while the 14400T has 10 cores with 16 threads. Both share identical L1 cache of 80 KB per core and L2 cache of 1.25 MB per core. The L3 cache differs: the 251TE has 36 MB shared, while the 14400T has 20 MB shared. This larger L3 cache on the 251TE likely contributes to its performance advantage in multi-threaded scenarios.

Integrated graphics also differ. The 251TE includes UHD Graphics 770, while the 14400T uses UHD Graphics 730. Both processors support DDR4 and DDR5 memory, dual-channel memory bus, and ECC memory. The 251TE records a memory bandwidth of 89.6 GB/s, while the 14400T has no bandwidth figure in the data. PCIe configuration is identical: Gen 5 with 16 lanes from the CPU.

The release timeline shows the 14400T launched earlier, with a release date in January 2024, while the 251TE arrived in January 2025. Both processors are currently listed as Active in production status and are marked as desktop market segments. Neither processor has an unlocked multiplier, meaning overclocking is not officially supported on either.

Specification Differences

The core and thread counts differ significantly: 24 cores and 32 threads for the 251TE versus 10 cores and 16 threads for the 14400T. Base clock speeds show the 14400T at 1.50 GHz, while the 251TE sits at 1.40 GHz. Boost clocks reverse this: the 251TE boosts to 5.40 GHz, while the 14400T reaches 4.50 GHz. Thermal design power differs by 10 watts, with the 251TE rated at 45 W and the 14400T at 35 W.

L3 cache is the sole cache difference, with the 251TE providing 36 MB shared versus 20 MB shared on the 14400T. Memory bandwidth is recorded only for the 251TE at 89.6 GB/s. The integrated graphics differ as noted above. Part numbers also differ: SRQAXQ5ZG for the 251TE and SRN3N for the 14400T. The launch MSRP for the 251TE is $384, while the 14400T has a launch MSRP of $221. The 14400T is listed with the series name "Core 14th Gen", while the 251TE has no series field.

Where Each One Wins

The Intel Core 7 251TE wins every benchmark in the recorded data set. Its most pronounced victories are in integer math, prime number calculation, and floating-point math, where it leads by 91.5%, 91.8%, and 74.2% respectively. These results position the 251TE as the stronger option for computational workloads that rely on arithmetic throughput, including scientific simulations, data analysis, and complex financial modeling.

In multi-threaded rendering and general productivity, the 251TE shows a consistent 48.5% advantage across all Cinebench versions and the PassMark multi-thread test. This makes it the suitable choice for video rendering, 3D animation, and software compilation where all cores are engaged. The 251TE also delivers a 67.4% lead in encryption tasks, suggesting better performance in security-related operations and virtual private network processing.

The Intel Core i5-14400T does not claim a single benchmark victory. However, the near parity in PassMark single-thread scores (1.6% gap) indicates that for light, single-threaded tasks such as web browsing, document editing, and basic office applications, the 14400T can deliver comparable responsiveness. Its lower 35 W TDP also positions it as a more power-efficient option for systems where thermal output and energy consumption are priorities, though no efficiency benchmarks are recorded to quantify this advantage.

The 14400T's smaller core count and cache size suggest it is better suited for entry-level desktop builds where the workload does not demand extensive parallelism. The 251TE, with its 24 cores, 32 threads, and 36 MB L3 cache, is better positioned for workstation-class tasks and heavy multitasking environments.

The Verdict

The recorded data shows a clear hierarchy: the Intel Core 7 251TE outperforms the Intel Core i5-14400T in every measured benchmark. The 251TE's average benchmark score of 41,650 places it in the 88th percentile of all CPUs, while the 14400T's average score of 27,166 sits in the 79th percentile. The 251TE's nearest rivals include the Intel Core Ultra 7 265H with an average score of 41,621 (0.1% behind), the Intel Core i7-14650HX at 41,576 (0.2% behind), and the Intel Core i7-12850HX at 41,779 (0.3% ahead). The 14400T's nearest rivals include the Intel Core i9-9900K at 27,097 (0.3% behind), the AMD Ryzen 7 5700G at 27,051 (0.4% behind), and the Intel Core i7-13700H at 27,355 (0.7% ahead).

For users prioritizing multi-threaded performance, rendering capability, and arithmetic-intensive workloads, the 251TE is the stronger choice based on its 48.5% to 91.8% advantages across these categories. Its higher boost clock of 5.40 GHz and larger L3 cache provide the resources needed for demanding applications.

The 14400T remains a valid option for scenarios where the workload is predominantly single-threaded and light, given its near-identical PassMark single-thread score. Its lower TDP of 35 W and earlier release date may factor into system design decisions, though the data does not record any performance metric where the 14400T leads. The 251TE's 45 W TDP and 10 W higher power envelope are the only recorded specification where the two differ in the 14400T's favor. For all benchmark-driven use cases, the 251TE delivers the higher performance.