Intel Core 7 251E vs Intel Core i5-14500HX Comparison

Intel Core 7 251E and Intel Core i5-14500HX are both active Intel processors built on the same 10 nm process, but they target different market segments and offer distinct performance profiles. The Core 7 251E is a desktop part with a 65 W TDP, while the i5-14500HX is a mobile processor with a 55 W TDP. The database contains benchmark scores for the i5-14500HX only, so the analysis below relies on architectural and specification comparisons from the recorded data, alongside the i5-14500HX's measured performance relative to its nearest rivals.

Where Each One Wins

The Intel Core i5-14500HX is the only one of the two with recorded benchmark results in the database. Its scores place it in the 84th percentile of all CPUs, with an average benchmark score of 35094. This positions it as a strong performer, especially when compared to its nearest rivals. The i5-14500HX leads the Intel Core i9-12900HX by 0.3%, leads the Intel Core i7-13800H by 0.3%, and leads the Intel Core 7 253PTE by 0.4%. It trails the Intel Core i7-12700K by 0.5%. This narrow margin around the 35000 average score indicates that the i5-14500HX sits in a highly competitive performance cluster.

For the Intel Core 7 251E, the database shows no benchmark scores, no average score, and no nearest rivals. Its percentile rank is 50, which is the midpoint of all CPUs, but this figure is not supported by any measured data. The Core 7 251E wins on paper in terms of core and thread count, offering 24 cores and 32 threads versus the i5-14500HX's 14 cores and 20 threads. It also has a higher boost clock of 5.60 GHz compared to 4.90 GHz, and a larger shared L3 cache of 36 MB versus 24 MB. These specifications suggest the Core 7 251E is designed for heavy multi-threaded workloads, but without benchmark data, its actual wins cannot be quantified.

The i5-14500HX, by contrast, wins in measured single-threaded and multi-threaded tests, as shown in its Cinebench and Geekbench results. Its Cinebench R23 multi-core score of 24234 and single-core score of 3421, along with a Geekbench multi-core score of 10171 and single-core score of 2129, provide concrete evidence of its capabilities. The Core 7 251E's higher core count and clock speeds may allow it to excel in parallel tasks, but the absence of data prevents a direct comparison.

Architecture Differences

The two processors come from different architectures and generations. The Intel Core 7 251E uses the Bartlett Lake codename and is listed as part of the Core 7 generation, while the Intel Core i5-14500HX is based on the Raptor Lake architecture, specifically the Raptor Lake-HX refresh. Both are built on a 10 nm process node by Intel, and both have a die size of 257 mm². The Core 7 251E was released on 2025-01-12, whereas the i5-14500HX was released on 2024-01-07.

Cache hierarchies differ significantly. The Core 7 251E has 80 KB of L1 cache per core and 2 MB of L2 cache per core, identical to the i5-14500HX. The difference appears in the shared L3 cache: the Core 7 251E has 36 MB, while the i5-14500HX has 24 MB. This larger L3 cache on the Core 7 251E could benefit workloads that repeatedly access a large working set of data.

Socket and market segment are major divergences. The Core 7 251E uses Intel Socket 1700 and is classified as a desktop processor. The i5-14500HX uses Intel BGA 1964 and is a mobile processor. This distinction affects physical installation and power delivery, with the desktop part having a 65 W TDP and the mobile part having a 55 W TDP. Both processors support DDR4 and DDR5 memory in a dual-channel configuration, and both support ECC memory. The Core 7 251E lists a memory bandwidth of 89.6 GB/s, while the i5-14500HX has no recorded memory bandwidth figure.

The multiplier unlock status differs: the Core 7 251E has a locked multiplier, while the i5-14500HX has an unlocked multiplier, allowing for overclocking on supported platforms. Integrated graphics are identical, with both featuring UHD Graphics 770. PCIe support is also the same, with Gen 5 and 16 lanes from the CPU.

Head-to-Head Benchmarks

Since the Core 7 251E has no benchmark entries in the database, a direct head-to-head comparison using measured scores is impossible. The data shows zero wins for the Core 7 251E and zero wins for the i5-14500HX in the head-to-head benchmark field, which is empty. The analysis must therefore rely on the i5-14500HX's standalone results and the Core 7 251E's specifications.

The i5-14500HX delivers strong multi-threaded performance. Its Cinebench R15 multi-core score is 2442, Cinebench R20 multi-core is 10178, and Cinebench R23 multi-core is 24234. In PassMark tests, it scores 28508 in multi-thread, 95584 in integer math, and 69442 in floating point math. These numbers indicate robust throughput for rendering and computational tasks. Single-threaded performance is also solid: Cinebench R23 single-core is 3421, Geekbench single-core is 2129, and PassMark single-thread is 3629.

The i5-14500HX's nearest rivals provide context. It is 0.3% faster than the Intel Core i9-12900HX and the Intel Core i7-13800H, and 0.4% faster than the Intel Core 7 253PTE. It is 0.5% slower than the Intel Core i7-12700K. These deltas are small, meaning the i5-14500HX performs on par with a range of desktop and mobile processors from previous generations.

For the Core 7 251E, the specification advantage lies in its 24 cores and 32 threads. If benchmark scores were available, the Core 7 251E would likely show an edge in multi-threaded workloads due to its higher core count, especially in applications that scale well with parallel execution. Its 5.60 GHz boost clock also exceeds the i5-14500HX's 4.90 GHz, which could translate to higher single-threaded performance, though the i5-14500HX's measured single-core scores are already competitive. The larger 36 MB L3 cache on the Core 7 251E may further aid performance in cache-sensitive tasks.

Specification Differences

The two processors differ in several key specification fields. Core count: the Core 7 251E has 24 cores, while the i5-14500HX has 14 cores. Thread count: 32 threads versus 20 threads. Base clock: 2.10 GHz for the Core 7 251E, 2.60 GHz for the i5-14500HX. Boost clock: 5.60 GHz versus 4.90 GHz. TDP: 65 W versus 55 W. Socket: Intel Socket 1700 versus Intel BGA 1964. Architecture: the Core 7 251E lists Bartlett Lake as its codename, while the i5-14500HX lists Raptor Lake as its architecture.

L3 cache size differs: 36 MB shared on the Core 7 251E, 24 MB shared on the i5-14500HX. Memory bandwidth is listed for the Core 7 251E as 89.6 GB/s, with no figure for the i5-14500HX. Release date: 2025-01-12 for the Core 7 251E, 2024-01-07 for the i5-14500HX. Launch MSRP is $384 for the Core 7 251E, while the i5-14500HX has no launch MSRP recorded. Multiplier unlock: the Core 7 251E is locked, the i5-14500HX is unlocked. Market segment: Desktop for the Core 7 251E, Mobile for the i5-14500HX. Part numbers differ: SRQDUQ657 for the Core 7 251E, SRMXJ for the i5-14500HX.

Both processors share identical L1 and L2 cache sizes per core, memory support for DDR4 and DDR5, dual-channel memory bus, ECC support, PCIe Gen 5 with 16 lanes, and UHD Graphics 770 integrated graphics.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 7 251E has 24 cores and 32 threads, while the Intel Core i5-14500HX has 14 cores and 20 threads.

Q: What are the boost clock speeds of the two processors?

A: The Intel Core 7 251E has a boost clock of 5.60 GHz, and the Intel Core i5-14500HX has a boost clock of 4.90 GHz.

Q: How do their L3 cache sizes compare?

A: The Intel Core 7 251E has 36 MB of shared L3 cache, while the Intel Core i5-14500HX has 24 MB of shared L3 cache.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core 7 251E and the Intel Core i5-14500HX support ECC memory.

Q: What is the market segment for each processor?

A: The Intel Core 7 251E is classified as a desktop processor, while the Intel Core i5-14500HX is classified as a mobile processor.

Q: Which processor has a higher average benchmark score?

A: The Intel Core i5-14500HX has an average benchmark score of 35094 and a percentile rank of 84, while the Intel Core 7 251E has no recorded benchmark scores and a percentile rank of 50.

The Verdict

The Intel Core i5-14500HX is the processor with verified performance data. Its benchmark scores show a capable chip that sits at the 84th percentile of all CPUs, with an average score of 35094. It trades blows with the Intel Core i9-12900HX, Intel Core i7-13800H, and Intel Core 7 253PTE, all within 0.4%, and trails the Intel Core i7-12700K by only 0.5%. For users who need a mobile processor with proven multi-threaded and single-threaded results, the i5-14500HX delivers measured performance across Cinebench, Geekbench, and PassMark tests.

The Intel Core 7 251E presents a different case. It offers a higher core count, 24 cores versus 14, and a higher boost clock, 5.60 GHz versus 4.90 GHz, along with a larger 36 MB L3 cache. It also has a higher TDP of 65 W versus 55 W, and it is a desktop part on Socket 1700. Its launch MSRP is $384. Without benchmark scores in the database, its performance cannot be confirmed, but its specifications indicate a design aimed at multi-threaded desktop workloads. The i5-14500HX, with its unlocked multiplier and mobile form factor, targets a different audience. The data supports the i5-14500HX for anyone requiring validated benchmark results, while the Core 7 251E remains a specification-heavy option whose measured performance is not yet recorded.