Intel Core 9 273PE vs Intel Core i5-14450HX Comparison

The Intel Core 9 273PE and the Intel Core i5-14450HX represent two distinct design philosophies from the same manufacturer, one aimed at desktop workloads and the other at high-performance mobile systems. The recorded data shows a decisive performance gap across every single benchmark, with the Core 9 273PE winning all 17 head-to-head comparisons. The average benchmark score difference is substantial, with the Core 9 273PE achieving 49845 compared to the i5-14450HX's 32040, a difference that places them in different performance percentiles entirely (90th versus 82nd percentile against all CPUs).

Head-to-Head Benchmarks

The most striking result in the database is the near-universal margin of victory for the Core 9 273PE. In the Cinebench suite, the multicore results are remarkably consistent, with the Core 9 273PE leading by 55.6% in all three versions: R15 (3153 versus 2026), R20 (13140 versus 8445), and R23 (31288 versus 20108). The single-core Cinebench results tell a similar story, with the Core 9 273PE ahead by 56.1% in R15 (445 versus 285), 55.8% in R20 (1855 versus 1191), and 55.6% in R23 (4417 versus 2838). This consistency across different Cinebench versions suggests the performance advantage is structural rather than workload-specific.

The Passmark results reveal where the Core 9 273PE's additional resources translate into the largest gains. The physics test shows the biggest proportional difference, with the Core 9 273PE scoring 3120 against the i5-14450HX's 1475, a 111.5% advantage. Prime number finding follows closely, with the Core 9 273PE more than doubling the i5-14450HX's score (203 versus 98, a 107.1% delta). Floating point math also shows a massive gap, with the Core 9 273PE at 107884 versus 58037, an 85.9% lead.

Integer math performance favors the Core 9 273PE by 78% (139410 versus 78330), while extended instructions show a 43.1% advantage (24630 versus 17207). The memory and I/O related tests show slightly smaller but still decisive margins: data compression is 45.7% higher (405885 versus 278538), encryption is 45.9% higher (22719 versus 15574), and random string sorting is 52.5% higher (45098 versus 29565). The multithread Passmark score shows a 55.4% advantage (36810 versus 23680).

The single-threaded Passmark results are the only area where the two processors are nearly identical. The Core 9 273PE scores 3650, while the i5-14450HX scores 3643, a difference of just 0.2%. This is an important data point, as it isolates the per-core performance of the two architectures and shows that the massive multicore advantages come almost entirely from having more cores and higher boost clocks, not from superior single-thread efficiency.

Where Each One Wins

The Core 9 273PE wins every benchmark in the database, so the distinction between the two is not about which tasks favor one processor, but rather about the magnitude of the advantage across different workload types. The largest wins, exceeding 100%, come in physics simulation and prime number finding, which are heavily dependent on parallel processing capabilities. The Core 9 273PE's 12 cores and 24 threads versus the i5-14450HX's 10 cores and 16 threads explain these outsized gains in highly parallel tasks.

The floating point and integer math tests show advantages of 85.9% and 78% respectively, indicating that the Core 9 273PE delivers substantially more arithmetic throughput. This suggests workloads involving scientific computing, financial modeling, or any form of heavy number crunching would see the most dramatic improvement. The extended instructions test, which measures SIMD and other specialized instruction paths, shows a more modest 43.1% advantage, still significant but less pronounced than the raw math throughput.

For single-threaded tasks, the database shows essentially no difference between the two processors. The 0.2% delta in Passmark single-thread and the larger deltas in Cinebench single-core tests (around 55% in favor of the Core 9 273PE) create an interesting contrast. The Cinebench single-core results likely reflect the Core 9 273PE's higher boost clock of 5.70 GHz versus 4.80 GHz, while the Passmark single-thread test may be less sensitive to clock speed differences.

FAQ

Q: How much faster is the Intel Core 9 273PE in multi-core rendering?

A: The Core 9 273PE leads by 55.6% in all three Cinebench multicore tests. In Cinebench R23, it scores 31288 versus the i5-14450HX's 20108.

Q: Is there any benchmark where the Intel Core i5-14450HX comes close to winning?

A: The closest result is the Passmark single-thread test, where the Core 9 273PE scores 3650 and the i5-14450HX scores 3643, a 0.2% difference. The Core 9 273PE still wins this test, but the margin is negligible.

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

A: The Passmark physics test shows the biggest difference, with the Core 9 273PE scoring 3120 versus 1475 for the i5-14450HX, a 111.5% advantage. Prime number finding is close behind at 107.1% (203 versus 98).

Q: How do the two processors compare in encryption workloads?

A: The Core 9 273PE scores 22719 in Passmark data encryption, which is 45.9% higher than the i5-14450HX's 15574.

Q: Does the Core 9 273PE's higher boost clock help in single-threaded tests?

A: The Cinebench single-core results show a 55.6% advantage for the Core 9 273PE, consistent with its 5.70 GHz boost clock versus 4.80 GHz for the i5-14450HX. However, the Passmark single-thread test shows only a 0.2% difference, so the benefit appears test-dependent.

Q: What is the average benchmark score difference?

A: The Core 9 273PE has an average benchmark score of 49845, which is 55.5% higher than the i5-14450HX's 32040. This places the Core 9 273PE in the 90th percentile of all CPUs, while the i5-14450HX sits in the 82nd percentile.

Specification Differences

The two processors differ in nearly every core specification. The Core 9 273PE has 12 cores and 24 threads, while the i5-14450HX has 10 cores and 16 threads. Base clocks are close, with the Core 9 273PE at 2.30 GHz and the i5-14450HX at 2.40 GHz, but the boost clocks diverge significantly: 5.70 GHz versus 4.80 GHz. The thermal design power also differs, with the Core 9 273PE rated at 65 W and the i5-14450HX at 55 W.

The cache configuration shows a major difference in L3 cache. The Core 9 273PE has 36 MB of shared L3 cache, while the i5-14450HX has 20 MB. Both processors use 80 KB of L1 cache per core and 2 MB of L2 cache per core. The memory bandwidth figures differ in the database, with the Core 9 273PE showing 89.6 GB/s while the i5-14450HX has no recorded memory bandwidth value, though both support DDR4 and DDR5 memory in dual-channel mode.

The sockets are completely different: the Core 9 273PE uses Intel Socket 1700 for desktop installation, while the i5-14450HX uses Intel BGA 1964, which is a soldered mobile socket. The integrated graphics also differ, with the Core 9 273PE featuring UHD Graphics 730 and the i5-14450HX featuring UHD Graphics 710. The multiplier unlock status differs as well, with the i5-14450HX having an unlocked multiplier while the Core 9 273PE does not. The release dates are also distinct, with the i5-14450HX released earlier and the Core 9 273PE carrying a launch MSRP of $549, while the i5-14450HX has no recorded launch price.

Architecture Differences

The Core 9 273PE is built on the Bartlett Lake architecture and belongs to the Core 9 generation, while the i5-14450HX uses the Raptor Lake architecture and is part of the Core 14th Gen series with the Raptor Lake-HX codename. Both processors are manufactured on a 10 nm process at Intel's foundry, so the underlying transistor technology is the same. The i5-14450HX has a recorded die size of 257 mm², while no die size is listed for the Core 9 273PE.

The market segments clearly differentiate the two: the Core 9 273PE is a desktop processor, while the i5-14450HX targets mobile systems. This explains the socket differences and the thermal design power gap. Both processors support PCIe Gen 5 with 16 CPU lanes and both support ECC memory. The memory bandwidth advantage for the Core 9 273PE (89.6 GB/s versus no recorded value for the i5-14450HX) likely reflects the desktop platform's ability to use higher-speed memory configurations.

The production status for both is listed as Active, indicating both remain in current production. The part numbers differ (SA4QD for the Core 9 273PE, SRMXK for the i5-14450HX), and the i5-14450HX has an unlocked multiplier, making it more flexible for overclocking in supported mobile platforms, while the Core 9 273PE does not offer this feature.

The Verdict

The benchmark data presents a clear hierarchy. The Intel Core 9 273PE wins all 17 head-to-head comparisons, with advantages ranging from a negligible 0.2% in Passmark single-thread to a dominant 111.5% in physics simulation. The average benchmark score of 49845 versus 32040, combined with the 90th versus 82nd percentile ranking, confirms that these processors operate in different performance classes despite their shared Intel heritage.

For workloads that scale with core count and thread count, the Core 9 273PE is the clear choice. Its 12 cores, 24 threads, and 36 MB of L3 cache deliver 55.6% higher Cinebench multicore scores and 55.4% higher Passmark multithread scores. The 5.70 GHz boost clock provides a meaningful single-core advantage in Cinebench tests, though the Passmark single-thread test shows the two are nearly identical at 3650 versus 3643. The i5-14450HX, with its lower core count, smaller cache, and mobile-oriented design, is positioned for a different use case: it delivers 82nd percentile performance in a mobile form factor with a 55 W thermal design power, making it suitable for high-performance laptops where the Core 9 273PE's desktop socket cannot be used.

The data suggests that anyone comparing these two processors is likely deciding between a desktop build and a mobile system. In a desktop context, the Core 9 273PE offers substantially higher multi-threaded throughput, particularly in physics, math, and rendering workloads. In a mobile context, the i5-14450HX provides competitive single-thread performance (within 0.2% in Passmark) and respectable multi-thread performance for its 55 W power envelope, though it cannot match the Core 9 273PE's raw output. The choice depends entirely on the platform requirement, as the different sockets make direct substitution impossible.