Intel Core 7 253PE vs Intel Core Ultra 9 275HX Comparison

Head-to-Head Benchmarks

The recorded data presents a lopsided comparison, with the Intel Core Ultra 9 275HX claiming 15 wins out of 17 head-to-head benchmarks, while the Intel Core 7 253PE manages only 2 victories. The most dramatic separation appears in multi-threaded workloads, where the Ultra 9's additional core count translates into overwhelming leads.

In Cinebench R15 multicore, the Ultra 9 275HX scores 5619.5 against the Core 7 253PE's 2507, a 55.4% advantage. The gap narrows somewhat in Cinebench R20 multicore, where the Ultra 9 posts 19899 versus 10449, a 47.5% lead. Cinebench R23 multicore shows the Ultra 9 ahead by 30.1%, scoring 35589 compared to 24880. These results indicate that for heavily parallel rendering tasks, the Ultra 9's 24 cores provide a substantial edge over the Core 7's 10 cores.

The single-core results tell a different story, and it is here that the Core 7 253PE secures its wins. In Cinebench R15 singlecore, the Core 7 scores 354 versus the Ultra 9's 334, a 6% advantage. The gap expands dramatically in Cinebench R23 singlecore, where the Core 7 delivers 3512 against the Ultra 9's 2204, a 59.3% lead. This single-core dominance suggests the Core 7's higher 5.50 GHz boost clock, compared to the Ultra 9's 5.40 GHz, translates into a meaningful advantage in lightly threaded workloads.

However, the Ultra 9 counters in Cinebench R20 singlecore, scoring 2809 against the Core 7's 1475, a 47.5% lead. This inconsistency between R15, R20, and R23 single-core results is curious. The data shows the Ultra 9 winning R20 singlecore by a wide margin while losing R23 singlecore by an even wider margin. Such variance may indicate differences in how the two architectures handle different instruction mixes or thermal behavior under sustained loads.

Moving to PassMark tests, the Ultra 9 275HX dominates across the board. Data compression shows the Ultra 9 at 608381 versus 339133, a 44.3% lead. Data encryption reveals an even larger gap: 47112 versus 18385, a 61% advantage. Extended instructions see the Ultra 9 ahead by 53.6%, scoring 47016 against 21806. Prime number finding shows the Ultra 9 at 448 versus 138, a 69.2% lead, one of the largest deltas in the entire comparison.

Floating point math favors the Ultra 9 at 191186 versus 80870, a 57.7% gap. Integer math shows a narrower margin, with the Ultra 9 at 155218 versus 114158, a 26.5% lead. Multithread performance in PassMark gives the Ultra 9 a 47.5% advantage, scoring 55759 against 29271. Physics tests show the Ultra 9 at 3338 versus 1845, a 44.7% lead. Random string sorting sees the Ultra 9 at 74320 versus 32777, a 55.9% gap. Even in single-thread PassMark tests, the Ultra 9 leads, scoring 4713 versus 3955, a 16.1% advantage.

The average benchmark scores reinforce this hierarchy. The Core 7 253PE averages 40557 across all tests, placing it in the 87th percentile of all CPUs. The Ultra 9 275HX averages 67469, placing it in the 94th percentile. This represents a 66.3% difference in average score, a substantial gap that places the two processors in entirely different performance tiers.

Architecture Differences

The two processors diverge fundamentally in their underlying designs. The Intel Core 7 253PE uses the Bartlett Lake codename, built on a 10 nm process node manufactured by Intel. It features 10 cores and 20 threads, indicating hyperthreading support. The Intel Core Ultra 9 275HX uses the Arrow Lake-HX codename, built on a 3 nm process node manufactured by TSMC. It features 24 cores and 24 threads, with no hyperthreading, yet its raw core count provides the multi-threaded advantage.

The Ultra 9's process node advantage is significant. A 3 nm process from TSMC represents a considerable density improvement over Intel's 10 nm node used in the Core 7. The Ultra 9 contains 17,800 million transistors on a 243 mm² die, while the Core 7's transistor count and die size are not recorded in the database. This transistor density allows the Ultra 9 to pack 24 cores while maintaining a lower 55 W TDP, compared to the Core 7's 65 W TDP.

Cache hierarchies differ substantially. The Core 7 provides 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 33 MB of shared L3 cache. The Ultra 9 provides 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3 cache. The Ultra 9's larger per-core caches, combined with its higher core count, give it a total cache advantage that likely contributes to its superior performance in data-heavy workloads like compression and encryption.

Memory support separates the two as well. The Core 7 supports both DDR4 and DDR5 memory with a dual-channel bus and 89.6 GB/s bandwidth. The Ultra 9 supports only DDR5, also dual-channel, but with higher bandwidth at 102.4 GB/s. The Core 7 supports ECC memory, while the Ultra 9 does not. The Ultra 9 offers PCIe Gen 5 with 20 lanes from the CPU, while the Core 7 provides 16 lanes. Both use Gen 5, but the Ultra 9 has additional lanes for expansion.

Integrated graphics differ significantly. The Core 7 includes UHD Graphics 730, while the Ultra 9 features Arc Xe-LPG Graphics with 64 execution units. The Arc solution is a more capable graphics processor, though the database does not record comparative graphics benchmarks.

Socket and market positioning separate them as well. The Core 7 uses Intel Socket 1700 and targets the desktop segment. The Ultra 9 uses Intel BGA 2114 and targets the mobile segment. The Core 7 has a locked multiplier, while the Ultra 9 has an unlocked multiplier, allowing overclocking. Their release dates differ, with the Ultra 9 releasing on January 12, 2025, and the Core 7 on March 8, 2026.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core 7 253PE has a boost clock of 5.50 GHz, while the Intel Core Ultra 9 275HX has a boost clock of 5.40 GHz.

Q: How do their multi-core Cinebench R23 scores compare?

A: The Intel Core Ultra 9 275HX scores 35589 in Cinebench R23 multicore, while the Intel Core 7 253PE scores 24880, giving the Ultra 9 a 30.1% advantage.

Q: Does the Core 7 253PE support ECC memory?

A: Yes, the Intel Core 7 253PE supports ECC memory. The Intel Core Ultra 9 275HX does not support ECC memory.

Q: What is the average benchmark score for each processor?

A: The Intel Core 7 253PE has an average benchmark score of 40557, placing it in the 87th percentile. The Intel Core Ultra 9 275HX has an average benchmark score of 67469, placing it in the 94th percentile.

Q: How many cores and threads does each processor have?

A: The Intel Core 7 253PE has 10 cores and 20 threads. The Intel Core Ultra 9 275HX has 24 cores and 24 threads.

Q: Which processor has a larger L3 cache?

A: The Intel Core Ultra 9 275HX has 36 MB of shared L3 cache, while the Intel Core 7 253PE has 33 MB of shared L3 cache.

Specification Differences

The two processors differ in nearly every recorded specification. Core count differs: 10 cores for the Core 7 versus 24 cores for the Ultra 9. Thread count differs: 20 threads versus 24 threads. Base clocks differ slightly: 2.50 GHz versus 2.70 GHz. Boost clocks differ in the opposite direction: 5.50 GHz versus 5.40 GHz. TDP differs: 65 W versus 55 W.

Socket types are entirely different: Intel Socket 1700 versus Intel BGA 2114. Codename differs: Bartlett Lake versus Arrow Lake-HX. Process nodes differ: 10 nm versus 3 nm. Foundry differs: Intel versus TSMC. The Ultra 9 has recorded transistor count of 17,800 million and die size of 243 mm², while the Core 7 has no recorded values for either.

Cache sizes differ across all levels. L1 cache per core: 80 KB versus 192 KB. L2 cache per core: 2 MB versus 3 MB. L3 shared cache: 33 MB versus 36 MB. Memory support differs: DDR4 and DDR5 versus DDR5 only. Memory bandwidth differs: 89.6 GB/s versus 102.4 GB/s. ECC support differs: true versus false. PCIe lanes differ: 16 versus 20. Integrated graphics differ: UHD Graphics 730 versus Arc Xe-LPG Graphics 64EU.

Market segment differs: Desktop versus Mobile. Release dates differ: March 8, 2026 versus January 12, 2025. Multiplier unlock status differs: locked versus unlocked. Part numbers differ: SA4QE versus SRVFK. The Core 7 has a launch MSRP of $384, while the Ultra 9 has no recorded launch MSRP.

The Verdict

The data presents a clear performance hierarchy. The Intel Core Ultra 9 275HX wins 15 of 17 head-to-head benchmarks and holds a 66.3% higher average benchmark score. Its 24 cores, larger caches, higher memory bandwidth, and more advanced 3 nm process give it commanding leads in every multi-threaded test. The only tests where the Core 7 253PE wins are Cinebench R15 singlecore and Cinebench R23 singlecore, where its higher boost clock delivers a 6% and 59.3% advantage respectively.

The Ultra 9's percentile ranking of 94 versus the Core 7's 87 reflects this overall superiority. The nearest rivals for the Core 7 include the Intel Core 5 223PE at 0.1% lower average score, the Intel Core Ultra X7 368H at 0.1% higher, the Intel Xeon 6357P at 0.2% lower, and the AMD Ryzen 9 7940H at 0.3% higher. The Ultra 9's nearest rivals include the Intel Xeon w5-3525 at 0.3% lower, the AMD EPYC 4484PX at 0.5% lower, the AMD Ryzen Threadripper PRO 5955WX at 0.6% lower, and the Intel Xeon 6515P at 0.7% higher. These rival deltas show both processors sit in tightly contested performance neighborhoods relative to their closest alternatives.

The Core 7 253PE is a desktop processor with 10 cores, 20 threads, and a 65 W TDP, supporting both DDR4 and DDR5 memory with ECC capability. The Ultra 9 275HX is a mobile processor with 24 cores, 24 threads, and a 55 W TDP, supporting only DDR5 without ECC. The Ultra 9's lower TDP alongside higher performance indicates superior efficiency, achieved through the 3 nm process and TSMC manufacturing.

Where Each One Wins

The Intel Core Ultra 9 275HX wins in all multi-threaded and most single-threaded scenarios. Its wins span Cinebench R15, R20, and R23 multicore tests, all PassMark tests including data compression, data encryption, extended instructions, prime number finding, floating point math, integer math, multithread, physics, random string sorting, and single-thread. The largest margins appear in prime number finding at 69.2% and data encryption at 61%, suggesting the Ultra 9's core count and cache architecture excel at workloads with high parallel throughput and heavy data manipulation.

The Intel Core 7 253PE wins in exactly two scenarios: Cinebench R15 singlecore with a 6% margin and Cinebench R23 singlecore with a 59.3% margin. These wins indicate that for certain lightly threaded workloads, particularly those measured by Cinebench's single-core tests, the Core 7's 5.50 GHz boost clock provides a tangible advantage. However, the Ultra 9's victory in Cinebench R20 singlecore by 47.5% complicates this picture, suggesting the Core 7's single-core advantage is workload-specific rather than universal.

For users prioritizing multi-threaded rendering, data compression, encryption, or physics calculations, the Ultra 9 275HX delivers 30% to 69% higher performance depending on the specific test. For users with workloads that mirror Cinebench R23 singlecore, the Core 7 253PE offers a substantial 59.3% lead. The Core 7 also holds advantages in ECC memory support, dual memory type compatibility, and a desktop socket that may suit certain system configurations. The Ultra 9 counters with more PCIe lanes, a larger cache hierarchy, higher memory bandwidth, and an unlocked multiplier for overclocking. The recorded data indicates the Ultra 9 is the stronger overall processor, with the Core 7 winning only in narrow single-core scenarios.