Intel Core 7 251E vs Intel Core i7-14650HX Comparison

Head-to-Head Benchmarks

The benchmark data for this comparison is one-sided. The Intel Core i7-14650HX carries a full suite of recorded benchmark results, while the Intel Core 7 251E has no benchmark entries in the database. This means every measurable performance comparison currently favors the mobile chip, though the absence of data for the 251E leaves a significant gap in the analysis.

The Core i7-14650HX posts a Cinebench R23 multi-core score of 20454 and a single-core score of 1969. In Cinebench R20, it records 11946 multi-core and 1686 single-core. The Geekbench results show 14249 multi-core and 2173 single-core. PassMark tests reveal a multithread score of 33495 and a single-thread score of 3841. Its average benchmark score is 41576, placing it in the 88th percentile among all CPUs in the database.

The Core 7 251E has an average benchmark score of 0 and sits at the 50th percentile. Its nearest rivals, which provide context for where it would likely land if measured, are all close to the 14650HX. The Intel Core Ultra 7 265H scores 41621, a delta of -0.1 percent compared to the 14650HX. The Intel Core 7 251TE scores 41650, a delta of -0.2 percent. The AMD Ryzen 9 5900X scores 41376, a delta of 0.5 percent. The Intel Core i7-12850HX scores 41779, a delta of -0.5 percent.

These deltas are tiny. The 14650HX sits within half a percent of four other processors, meaning its measured performance is essentially neck-and-neck with a broad cluster of chips. The 251E, despite having no benchmark scores of its own, would likely land in this same neighborhood if the similarity of its architecture and specifications to the 251TE is any guide. The 251TE, a near-namesake of the 251E, is 0.2 percent behind the 14650HX in average score.

The lack of scores for the 251E is the defining feature of this head-to-head. It is not that the 251E loses on the merits of measured output; it is that no output exists in the database to compare. The 14650HX is the only chip here with recorded data, and that data paints a picture of a solidly mid-to-high-tier performer, clustered with several contemporary processors.

Architecture Differences

The two chips come from different Intel families with different design goals. The Core 7 251E uses the Bartlett Lake codename and belongs to the Core 7 generation. It is built on a 10 nm process node at Intel with a die size of 257 mm². The Core i7-14650HX uses the Raptor Lake architecture, specifically Raptor Lake-HX, and belongs to the Core 14th Gen series. It is also built on a 10 nm process node at Intel with an identical die size of 257 mm². The process and die are shared, but the underlying architecture generation differs, with Bartlett Lake being a newer design than Raptor Lake-HX Refresh.

Core counts diverge sharply. The 251E has 24 cores and 32 threads. The 14650HX has 16 cores and 24 threads. That is an 8-core and 8-thread advantage for the 251E on paper. The 251E also has a higher boost clock at 5.60 GHz versus 5.20 GHz for the 14650HX. The base clock is nearly identical: 2.10 GHz for the 251E and 2.20 GHz for the 14650HX.

Cache allocations differ as well. Both chips use 80 KB of L1 cache per core and 2 MB of L2 cache per core. The shared L3 cache, however, gives the 251E 36 MB versus 30 MB for the 14650HX, a 6 MB advantage for the newer chip. This larger L3 pool, combined with more cores and a higher boost clock, suggests the 251E is architecturally positioned for heavier multi-threaded workloads, even though no benchmark data confirms this in practice.

The integrated graphics differ. The 251E includes UHD Graphics 770, while the 14650HX includes UHD Graphics 710. Both support DDR4 and DDR5 memory over a dual-channel bus. The 251E lists a memory bandwidth of 89.6 GB/s, while the 14650HX has no recorded memory bandwidth figure in the database. Both support ECC memory. Both use PCIe Gen 5 with 16 CPU lanes.

The market segments split the pair. The 251E is a desktop part on Intel Socket 1700. The 14650HX is a mobile part on Intel BGA 1964. The 251E launched on 2025-01-12, while the 14650HX launched on 2024-01-07, roughly a year earlier. The 251E has a locked multiplier, while the 14650HX has an unlocked multiplier. The 251E carries a launch MSRP of $384, while the 14650HX has no recorded launch MSRP.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 7 251E has 24 cores and 32 threads. The Intel Core i7-14650HX has 16 cores and 24 threads.

Q: What are the recorded benchmark scores for the Core 7 251E?

A: The database contains no benchmark entries for the Core 7 251E. Its average benchmark score is listed as 0, and it has no nearest rivals recorded.

Q: How does the Core i7-14650HX compare to its closest rivals in average score?

A: The 14650HX has an average benchmark score of 41576. The Intel Core Ultra 7 265H is 0.1 percent behind, the Intel Core 7 251TE is 0.2 percent behind, the AMD Ryzen 9 5900X is 0.5 percent ahead, and the Intel Core i7-12850HX is 0.5 percent behind.

Q: Do both processors support the same memory types?

A: Yes, both support DDR4 and DDR5 over a dual-channel memory bus. The 251E lists a memory bandwidth of 89.6 GB/s, while the 14650HX has no memory bandwidth figure recorded.

Q: Which processor has a higher boost clock?

A: The Core 7 251E boosts to 5.60 GHz. The Core i7-14650HX boosts to 5.20 GHz.

Q: Are both processors built on the same process node?

A: Yes, both are built on a 10 nm process node at Intel, and both have a die size of 257 mm².

Specification Differences

The Core 7 251E and Core i7-14650HX differ across several specification fields. The 251E has 24 cores and 32 threads, while the 14650HX has 16 cores and 24 threads. Base clocks are 2.10 GHz for the 251E and 2.20 GHz for the 14650HX. Boost clocks are 5.60 GHz and 5.20 GHz, respectively. TDP figures are 65 watts for the 251E and 55 watts for the 14650HX. The 251E uses Intel Socket 1700, while the 14650HX uses Intel BGA 1964. Codename and architecture differ: Bartlett Lake for the 251E, Raptor Lake (Raptor Lake-HX) for the 14650HX. Generations are listed as Core 7 (Bartlett Lake) and Core i7 (Raptor Lake-HX Refresh). The 251E has 36 MB of shared L3 cache, the 14650HX has 30 MB. Memory bandwidth is 89.6 GB/s for the 251E and not recorded for the 14650HX. Integrated graphics are UHD Graphics 770 for the 251E and UHD Graphics 710 for the 14650HX. Market segments are Desktop and Mobile. Release dates are 2025-01-12 and 2024-01-07. The 251E has a locked multiplier and a launch MSRP of $384; the 14650HX has an unlocked multiplier and no launch MSRP. Part numbers are SRQDUQ657 and SRMXH. The 251E has no benchmarks and sits at the 50th percentile with an average score of 0; the 14650HX has 19 recorded benchmark scores, sits at the 88th percentile, and has an average score of 41576.

Where Each One Wins

The Core i7-14650HX wins every measurable category because it is the only chip with recorded data. Its Cinebench R15 multi-core score of 3470.5 and single-core score of 285.5, its Cinebench R20 scores of 11946 and 1686, its Cinebench R23 scores of 20454 and 1969, its Geekbench scores of 14249 and 2173, and its PassMark suite results all stand as the only concrete performance evidence in this comparison. The PassMark data includes a multithread score of 33495, a single-thread score of 3841, integer math at 116661, floating point math at 84999, extended instructions at 24150, data compression at 398418, data encryption at 22917, find prime numbers at 152, physics at 2202, and random string sorting at 43035.

The Core 7 251E wins on specification alone. It has more cores and threads, a higher boost clock, more L3 cache, a higher TDP, a newer release date, and a lower part number designation. It also has a higher memory bandwidth figure and a more capable integrated GPU on paper. These advantages are real in the spec sheet, but they carry no measured weight in the database.

For workloads that depend on recorded performance, the 14650HX is the only defensible choice. For workloads that depend on raw architectural headroom, the 251E presents a compelling theoretical case. The 14650HX, with its unlocked multiplier, also offers overclocking headroom that the locked 251E does not.

The Verdict

The data leads to a clear but incomplete verdict. The Intel Core i7-14650HX is the only processor here with benchmark results, and those results place it at the 88th percentile with an average score of 41576. It is within 0.5 percent of four rivals, including the AMD Ryzen 9 5900X and the Intel Core i7-12850HX. This clustering indicates that the 14650HX is a stable, predictable performer in its class, neither leading nor trailing its peers by any meaningful margin.

The Intel Core 7 251E is a specification-heavy desktop chip with no measured output. Its 24 cores, 32 threads, 5.60 GHz boost, and 36 MB of L3 cache suggest a processor aimed at multi-threaded desktop workloads. Its locked multiplier and 65-watt TDP position it as a fixed-function workhorse rather than an enthusiast part. The launch MSRP of $384 places it in a specific market tier, but without benchmarks, its actual standing cannot be verified.

For users choosing between these two chips, the decision hinges on the available data. If measured performance is the priority, the 14650HX is the only option with evidence. If architectural specifications and a desktop form factor matter more, the 251E offers a larger core count and more cache. The 14650HX also brings an unlocked multiplier, enabling user-controlled overclocking, while the 251E does not. The database currently cannot confirm whether the 251E would outperform the 14650HX in any workload, and until that data exists, the 14650HX remains the processor with the demonstrated track record.