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

The Verdict

The recorded data shows a decisive performance gap between these two Intel processors. The Intel Core 9 273PQE wins 17 out of 17 head-to-head benchmark comparisons against the Intel Core i5-14450HX, with no benchmark favoring the latter. The average benchmark score of 66099 for the Core 9 273PQE places it at the 93rd percentile among all CPUs, while the Core i5-14450HX scores 32040 on average, sitting at the 82nd percentile.

The Core 9 273PQE belongs to the Bartlett Lake generation and targets the desktop segment, whereas the Core i5-14450HX is a Raptor Lake-HX Refresh mobile processor. The data indicates the Core 9 273PQE is the clear choice for workloads demanding maximum multi-threaded throughput, with its nearest rivals including the AMD Ryzen 9 7950X3D (0.3% ahead) and the Intel Core Ultra 5 250KF Plus (0.1% behind). The Core i5-14450HX, by contrast, sits within 0.6% of the Intel Core i9-11900, making it a mid-range mobile part that delivers roughly half the compute performance of the desktop chip.

For users with workloads spanning Cinebench renders, PassMark math tests, and data compression, the Core 9 273PQE delivers roughly double the results of the Core i5-14450HX across most tests. The single-thread advantage is smaller but still substantial, with a 25.5% lead in PassMark single-thread testing. The Core i5-14450HX remains a functional mobile processor, but the data offers no scenario where it outperforms the Core 9 273PQE.

Architecture Differences

The two processors share the same 10 nm process node and Intel foundry, but their underlying designs diverge significantly. The Core 9 273PQE uses the Bartlett Lake codename, while the Core i5-14450HX is built on Raptor Lake-HX. The Core 9 273PQE features 12 cores and 24 threads, compared to the Core i5-14450HX's 10 cores and 16 threads. This core and thread count difference explains much of the multi-threaded performance gap.

Cache configurations also differ markedly. Both processors allocate 80 KB of L1 cache per core and 2 MB of L2 cache per core, but the L3 cache is 36 MB shared on the Core 9 273PQE versus 20 MB shared on the Core i5-14450HX. The larger L3 cache on the desktop part provides a meaningful advantage in workloads that repeatedly access large datasets.

The Core 9 273PQE carries the UHD Graphics 770 integrated GPU, while the Core i5-14450HX uses the UHD Graphics 710. Both processors support DDR4 and DDR5 memory in dual-channel configuration, and both support ECC memory. The Core 9 273PQE has a rated memory bandwidth of 89.6 GB/s, while the Core i5-14450HX has no memory bandwidth figure recorded in the database. PCI Express support is identical: Gen 5 with 16 CPU lanes.

The Core 9 273PQE has a base clock of 3.40 GHz and a boost clock of 5.90 GHz, whereas the Core i5-14450HX operates at 2.40 GHz base and 4.80 GHz boost. The desktop chip carries a 125 W TDP, while the mobile chip is rated at 55 W. The Core i5-14450HX has an unlocked multiplier, the Core 9 273PQE does not. The die size of the Core i5-14450HX is recorded as 257 mm², while no die size is listed for the Core 9 273PQE. The Core 9 273PQE uses Intel Socket 1700, and the Core i5-14450HX uses Intel BGA 1964.

Head-to-Head Benchmarks

The Cinebench results show a consistent pattern of near-doubling performance for the Core 9 273PQE. In Cinebench R15 multi-core, the Core 9 273PQE scores 3950 against 2026 for the Core i5-14450HX, a 95% advantage. Single-core R15 delivers 557 versus 285, a 95.4% lead. Cinebench R20 multi-core shows 16459 versus 8445 (94.9% delta), and single-core shows 2323 versus 1191 (95% delta). Cinebench R23 follows the same pattern: 39190 versus 20108 in multi-core (94.9%) and 5532 versus 2838 in single-core (94.9%).

PassMark results show even larger deltas in some tests. Data compression scores 585752 for the Core 9 273PQE against 278538 for the Core i5-14450HX, a 110.3% difference. Extended instructions deliver 38743 versus 17207, a 125.2% lead, the largest margin in the entire comparison. Floating point math shows 125546 versus 58037, a 116.3% difference. Integer math records 164629 versus 78330, a 110.2% lead. Prime number finding scores 198 versus 98, exactly doubling the mobile chip with a 102% delta.

Data encryption shows a smaller but still substantial gap: 29636 versus 15574, a 90.3% difference. PassMark multi-thread scores 46107 versus 23680, a 94.7% delta. Physics testing records 2754 versus 1475, an 86.7% lead. Random string sorting shows 53167 versus 29565, a 79.8% difference, the smallest multi-threaded margin in the dataset.

The narrowest overall margin appears in PassMark single-thread testing, where the Core 9 273PQE scores 4573 against 3643 for the Core i5-14450HX, a 25.5% advantage. This indicates that while the desktop chip's clock advantage (5.90 GHz versus 4.80 GHz boost) helps in single-threaded workloads, the gap is far smaller than in multi-threaded tests. The single-thread result still favors the Core 9 273PQE, but the margin is roughly a quarter of the multi-threaded deltas.

Specification Differences

The following fields differ between the two processors in the recorded data:

• Cores: 12 (Core 9 273PQE) versus 10 (Core i5-14450HX)
• Threads: 24 versus 16
• Base clock: 3.40 GHz versus 2.40 GHz
• Boost clock: 5.90 GHz versus 4.80 GHz
• TDP: 125 W versus 55 W
• Socket: Intel Socket 1700 versus Intel BGA 1964
• Codename: Bartlett Lake versus Raptor Lake-HX
• Generation: Core 9 (Bartlett Lake) versus Core i5 (Raptor Lake-HX Refresh)
• Die size: not recorded versus 257 mm²
• L3 cache: 36 MB shared versus 20 MB shared
• Memory bandwidth: 89.6 GB/s versus not recorded
• Integrated graphics: UHD Graphics 770 versus UHD Graphics 710
• Market segment: Desktop versus Mobile
• Release date: 2026-03-08 versus 2024-01-07
• Launch MSRP: $589 versus not recorded
• Multiplier unlocked: false versus true
• Part number: SA4Q9 versus SRMXK

Identical specifications include the 10 nm process node, Intel as the foundry, 80 KB L1 cache per core, 2 MB L2 cache per core, DDR4 and DDR5 memory support, dual-channel memory bus, ECC memory support, PCIe Gen 5 with 16 CPU lanes, and active production status.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 9 273PQE has 12 cores and 24 threads, while the Intel Core i5-14450HX has 10 cores and 16 threads.

Q: What is the biggest performance difference between the two?

A: The largest margin is in PassMark extended instructions, where the Core 9 273PQE scores 38743 versus 17207, a 125.2% advantage. The smallest margin is in PassMark single-thread testing, with a 25.5% lead.

Q: How do the two processors compare in Cinebench R23?

A: In Cinebench R23 multi-core, the Core 9 273PQE scores 39190 versus 20108, a 94.9% difference. In single-core, the scores are 5532 versus 2838, also a 94.9% difference.

Q: What are the clock speed differences?

A: The Core 9 273PQE has a base clock of 3.40 GHz and a boost clock of 5.90 GHz. The Core i5-14450HX has a base clock of 2.40 GHz and a boost clock of 4.80 GHz.

Q: Do both processors support ECC memory?

A: Yes, both the Core 9 273PQE and the Core i5-14450HX support ECC memory, and both support DDR4 and DDR5 in dual-channel configuration.

Q: Which processor has a larger L3 cache?

A: The Core 9 273PQE has 36 MB of shared L3 cache, while the Core i5-14450HX has 20 MB of shared L3 cache. Both have 80 KB L1 per core and 2 MB L2 per core.