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

The Intel Core 7 251TE and Intel Core i7-14650HX present a fascinating split decision, as their overall average benchmark scores are nearly identical — 41650 for the 251TE versus 41576 for the 14650HX, a delta of just 0.2%. Yet, the individual benchmark results reveal two completely different performance personalities. The 251TE dominates in specific workloads like Cinebench R23 and integer math, while the 14650HX sweeps a majority of other tests, including the entire Passmark suite and several Cinebench iterations. This is not a simple "one is faster" situation; it is a study in how architectural choices and core configurations lead to divergent strengths across different software workloads.

Head-to-Head Benchmarks

The most striking result is in Cinebench R23 single-core, where the Core 7 251TE delivers a score of 3602 against the i7-14650HX's 1969. That is an enormous 82.9% advantage for the 251TE, the largest delta in the entire comparison. This single-core dominance is further reinforced in Cinebench R15 single-core, where the 251TE scores 362 versus 285.5, a 26.8% lead. The data suggests the 251TE’s higher boost clock of 5.40 GHz, compared to the 14650HX's 5.20 GHz, translates into a substantial advantage when workloads rely on a single thread.

However, the multicore picture is more complex and favors the i7-14650HX in most, but not all, scenarios. In Cinebench R15 multicore, the 14650HX wins decisively with 3470.5 points versus 2572, a 25.9% lead. Similarly, in Cinebench R20 multicore, the 14650HX scores 11946 to the 251TE's 10717, a 10.3% advantage. Yet, the tables turn dramatically in Cinebench R23 multicore, where the 251TE scores 25518 against the 14650HX's 20454, giving the 251TE a 24.8% victory. This inconsistency between Cinebench versions is puzzling; the R23 result is more aligned with the 251TE's higher core count of 24 versus 16.

Looking at the Passmark suite, the i7-14650HX wins 7 out of 9 tests, including data compression (398418 vs 334399, a 16.1% lead), extended instructions (24150 vs 16974, a 29.7% lead), and multithread (33495 vs 30022, a 10.4% lead). The 251TE only manages narrow wins in floating-point math (85607 vs 84999, a 0.7% edge) and a more substantial one in integer math (125739 vs 116661, a 7.8% lead). The overall win count is 12 for the 14650HX and 5 for the 251TE, but the margins tell the real story. The 251TE's single-core R23 win is so massive that it skews the average, but the 14650HX is clearly the more consistent performer across a broader range of tasks.

Architecture Differences

The foundational difference lies in their codenames and target markets. The Core 7 251TE is built on Bartlett Lake, a desktop-oriented architecture, while the i7-14650HX uses Raptor Lake-HX, a mobile refresh design. This is reflected in their sockets: the 251TE uses Intel Socket 1700, whereas the 14650HX uses Intel BGA 1964, meaning the former is designed for replaceable desktop motherboards and the latter is soldered onto mobile boards. Both are manufactured on Intel's 10 nm process, but the die sizes differ significantly, with the 251TE measuring 215 mm² and the 14650HX at 257 mm².

Core counts are a major differentiator. The 251TE packs 24 cores and 32 threads, while the 14650HX has 16 cores and 24 threads. This raw core advantage should theoretically favor the 251TE in heavily threaded workloads, yet the benchmark data shows the 14650HX often wins in multicore tests. The cache hierarchy offers a clue: the 14650HX has a larger L2 cache at 2 MB per core compared to the 251TE's 1.25 MB per core, but the 251TE has a larger shared L3 cache at 36 MB versus 30 MB. Both have the same 80 KB L1 cache per core.

Clock speeds also differ, with the 251TE having a lower base clock of 1.40 GHz but a higher boost of 5.40 GHz, while the 14650HX starts at 2.20 GHz and boosts to 5.20 GHz. The 251TE also has a higher TDP of 45W compared to the 14650HX's 55W, which is counterintuitive for a desktop part. Integrated graphics differ as well: the 251TE includes UHD Graphics 770, while the 14650HX has the less capable UHD Graphics 710. Both support DDR4 and DDR5 memory, dual-channel configurations, and Gen 5 PCIe with 16 lanes from the CPU, and both support ECC memory.

Where Each One Wins

The Core 7 251TE is the clear winner for single-threaded performance and specific compute-heavy tasks. Its 82.9% lead in Cinebench R23 single-core is a massive indicator for applications like legacy software, certain game engines, or lightly threaded productivity tools that rely on a single strong core. Its wins in integer math (7.8% lead) and floating-point math (0.7% lead) suggest it handles scientific or financial calculations that are not heavily parallelized. The 24-core configuration also gives it a significant win in Cinebench R23 multicore, which might be better optimized for its core layout than other versions of the test.

The i7-14650HX is the more versatile performer, winning the majority of tests across the board. It dominates in data compression (16.1% lead) and extended instructions (29.7% lead), making it a better choice for workloads like file archiving, video encoding, or any software that leverages SIMD instructions. Its wins in Passmark multithread (10.4% lead) and physics (12% lead) indicate it handles general multi-threaded workloads more efficiently, despite having fewer cores. The data suggests its higher base clock of 2.20 GHz and larger L2 cache per core allow it to sustain better throughput in mixed workloads, even if its peak single-thread performance is lower.

The Verdict

Based strictly on the benchmark data, the Intel Core i7-14650HX is the more well-rounded choice for most users. It wins 12 out of 17 head-to-head tests, including all the Passmark tests except two, and its average score of 41576 is nearly tied with the 251TE's 41650. Its strengths in data compression, extended instructions, and multithread performance indicate it will handle a wider variety of daily tasks, from content creation to general productivity, with greater consistency. The 251TE's 0.2% average score lead is entirely due to its outlier win in Cinebench R23 single-core, which does not translate into broad real-world superiority.

However, the Core 7 251TE is the definitive pick for users who prioritize single-threaded performance above all else. The 82.9% advantage in Cinebench R23 single-core is not a marginal difference; it is a generational leap that will be noticeable in any software that is not well-optimized for multi-threading. Its wins in integer and floating-point math also make it a candidate for specialized scientific or engineering applications. If a user's workflow is dominated by a single heavy thread, the 251TE is the obvious choice, despite losing the overall win count.

The production status is "Active" for both, and the 251TE has a launch MSRP of $384. The 14650HX has no listed launch MSRP. The 251TE is a desktop part, while the 14650HX is mobile, so platform choice will also dictate which is viable for a given build.

FAQ

Q: Which CPU has a higher single-core performance in Cinebench R23?

A: The Intel Core 7 251TE scores 3602 in Cinebench R23 single-core, which is 82.9% higher than the Intel Core i7-14650HX's score of 1969.

Q: Does the Intel Core i7-14650HX win in more benchmark tests than the Core 7 251TE?

A: Yes, the i7-14650HX wins 12 out of the 17 head-to-head benchmarks, while the Core 7 251TE wins 5.

Q: What is the difference in core and thread counts between the two CPUs?

A: The Intel Core 7 251TE has 24 cores and 32 threads, while the Intel Core i7-14650HX has 16 cores and 24 threads.

Q: Which CPU has a larger L3 cache?

A: The Intel Core 7 251TE has 36 MB of shared L3 cache, while the Intel Core i7-14650HX has 30 MB of shared L3 cache.

Q: How do their boost clock speeds compare?

A: The Intel Core 7 251TE has a boost clock of 5.40 GHz, which is higher than the Intel Core i7-14650HX's boost clock of 5.20 GHz.

Q: Are both CPUs based on the same manufacturing process?

A: Yes, both the Intel Core 7 251TE and the Intel Core i7-14650HX are manufactured on Intel's 10 nm process node.

Specification Differences

| Specification | Intel Core 7 251TE | Intel Core i7-14650HX |

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

| Cores | 24 | 16 |

| Threads | 32 | 24 |

| Base Clock | 1.40 GHz | 2.20 GHz |

| Boost Clock | 5.40 GHz | 5.20 GHz |

| TDP | 45 W | 55 W |

| Socket | Intel Socket 1700 | Intel BGA 1964 |

| Codename | Bartlett Lake | Raptor Lake-HX |

| Generation | Core 7 (Bartlett Lake) | Core i7 (Raptor Lake-HX Refresh) |

| Die Size | 215 mm² | 257 mm² |

| L2 Cache | 1.25 MB (per core) | 2 MB (per core) |

| L3 Cache | 36 MB (shared) | 30 MB (shared) |

| Integrated Graphics | UHD Graphics 770 | UHD Graphics 710 |

| Market Segment | Desktop | Mobile |

| Release Date | 2025-01-12 | 2024-01-07 |

| Launch MSRP | $384 | null |

| Multiplier Unlocked | false | true |