Intel Core i5-13450HX vs Intel Core Ultra 7 165H Comparison

The Intel Core i5-13450HX and Intel Core Ultra 7 165H are both mobile processors that land at the same 84th percentile among all CPUs, yet they achieve that standing through very different performance profiles. The data shows a clear split: the Core Ultra 7 165H dominates in short-duration multi-core workloads and most PassMark integer tasks, while the Core i5-13450HX strikes back decisively in longer Cinebench R23 multi-core rendering and extended instruction throughput. The Core Ultra 7 165H wins 12 of the 17 head-to-head benchmarks, but the Core i5-13450HX takes the most important victory in modern multi-core rendering. There is no single winner here; the choice depends on whether sustained rendering or diverse integer-heavy workloads matter more.

Head-to-Head Benchmarks

The most striking result is in Cinebench R23 multi-core, where the Intel Core i5-13450HX scores 16,797 against the Core Ultra 7 165H’s 14,551. That is a 15.4% lead for the older chip, and it flips the multi-core narrative that the Ultra 7 builds elsewhere. The gap is substantial enough to matter for anyone rendering or compiling for extended periods. Notably, the Ultra 7 wins the Cinebench R15 and R20 multi-core tests, scoring 2,641 and 9,233 respectively, compared to 2,503 and 8,728 for the i5-13450HX. Those are 5.2% and 5.5% wins, respectively. This inconsistency across Cinebench versions suggests the Ultra 7 handles shorter bursts better, while the i5-13450HX scales more effectively as the workload duration increases.

Single-core results are close, with the Ultra 7 edging ahead in every Cinebench single-core test. In R15 single-core, the Ultra 7 scores 257 versus 248, a 3.5% margin. In R20 single-core, it scores 1,303 versus 1,232, a 5.4% margin. The R23 single-core test narrows to just 1,759 versus 1,746, a 0.7% difference. However, the PassMark single-thread test flips in favor of the i5-13450HX, which scores 3,553 against the Ultra 7’s 3,509, a 1.3% difference. This indicates the i5-13450HX has a slight edge in legacy single-threaded PassMark workloads, while the Ultra 7 leads in modern Cinebench single-core.

PassMark results generally favor the Ultra 7, but not uniformly. The biggest win for the Ultra 7 is in prime number finding, where it scores 118 versus 83, a massive 29.7% lead. Physics simulation also goes strongly to the Ultra 7, with 1,806 versus 1,504, a 16.7% margin. Floating-point math and integer math both favor the Ultra 7, with scores of 66,273 and 89,415 against 61,776 and 83,209, representing 6.8% and 6.9% wins. Data encryption also goes to the Ultra 7, 17,169 versus 16,632, a 3.1% margin. The multithread benchmark is close, with the Ultra 7 scoring 25,933 against 25,084, a 3.3% win. Random string sorting also favors the Ultra 7, 33,473 versus 31,940, a 4.6% margin.

The i5-13450HX has its own PassMark strongholds. Data compression goes to the i5-13450HX, scoring 305,990 versus 291,161, a 5.1% win. Extended instructions show an even larger advantage for the i5-13450HX, with 19,083 versus 17,299, a 10.3% lead. These two wins, combined with the R23 multi-core result, show the i5-13450HX excels in workloads that stress AVX-style instructions and sustained memory throughput. The overall benchmark counts reflect this split: the Ultra 7 wins 12 benchmarks, the i5-13450HX wins 5.

The Verdict

The data points to two distinct buyer profiles. The Intel Core Ultra 7 165H is the pick for users who need strong performance in physics simulation, prime number crunching, and general integer math, where it leads by margins from 3.1% to 29.7%. It also wins all three Cinebench R15 and R20 tests, making it the better choice for short multi-core bursts and single-core responsiveness as measured by the newer Cinebench versions. Its 5.0 GHz boost clock and 16 cores give it a raw throughput advantage that shows in most PassMark sub-tests.

The Intel Core i5-13450HX is the pick for sustained multi-core rendering workloads, as demonstrated by its 15.4% lead in Cinebench R23 multi-core. It also wins data compression and extended instructions, making it a better fit for compression tools and SIMD-heavy code. The 1.3% PassMark single-thread lead is marginal but breaks a tie in that specific test. Users who prioritize long render jobs or work with large datasets that benefit from the 20 MB L3 cache should lean toward the i5-13450HX.

Neither chip is objectively better; they are tied at the 84th percentile and have average benchmark scores within 0.7% of each other (34,333 for the i5-13450HX versus 34,083 for the Ultra 7). The Ultra 7’s nearest rival comparison shows it just 0.3% behind the AMD EPYC 4244P, while the i5-13450HX is 0.2% ahead of the same EPYC chip. The decision should rest on workload pattern: short, varied tasks favor the Ultra 7; long, sustained rendering favors the i5-13450HX.

Architecture Differences

The two processors come from different Intel families and process nodes. The Core i5-13450HX uses Raptor Lake architecture on a 10 nm process, while the Core Ultra 7 165H uses Meteor Lake architecture on a 7 nm process. Both are fabricated by Intel, but the newer 7 nm node gives the Ultra 7 a process advantage that contributes to its higher base clock of 3.80 GHz against the i5-13450HX’s 2.40 GHz. The boost clocks tell a similar story: 5.00 GHz for the Ultra 7 versus 4.60 GHz for the i5-13450HX.

Core counts differ significantly. The i5-13450HX has 10 cores and 16 threads, while the Ultra 7 has 16 cores and 22 threads. The Ultra 7’s extra cores and threads help it in multi-threaded PassMark tests, though the i5-13450HX’s higher TDP of 55 watts versus 28 watts for the Ultra 7 allows it to sustain higher power draw, which explains its R23 multi-core lead. Cache hierarchies also differ: the i5-13450HX has 80 KB L1 per core and 2 MB L2 per core, with 20 MB shared L3; the Ultra 7 has 112 KB L1 per core and 2 MB L2 per core, with 24 MB shared L3.

Memory support is a differentiator. The i5-13450HX supports both DDR4 and DDR5 memory on a dual-channel bus, and it has ECC memory support. The Ultra 7 supports only DDR5, with the specific speed depending on the motherboard, and it lacks ECC support. The Ultra 7 has a listed memory bandwidth of 89.6 GB/s, while the i5-13450HX does not have a bandwidth figure in the data. PCIe lanes also differ: the i5-13450HX provides Gen 5 with 20 lanes (CPU only), while the Ultra 7 provides Gen 5 with 8 lanes (CPU only).

Integrated graphics diverge sharply. The i5-13450HX comes with UHD Graphics 710, a basic iGPU. The Ultra 7 includes Arc Xe-LPG 128EU, a much more capable integrated solution. This makes the Ultra 7 better suited for systems without a discrete GPU, though benchmark data for iGPU performance is not in the pack. The sockets are different as well: the i5-13450HX uses Intel BGA 1964, while the Ultra 7 uses Intel BGA 2049, meaning they are not interchangeable in the same motherboard.

The i5-13450HX has an unlocked multiplier, allowing overclocking, while the Ultra 7 is locked. Release dates and pricing differ, with the i5-13450HX launching in January 2023 at a launch MSRP of $326, and the Ultra 7 launching in December 2023 at a launch MSRP of $460. Both chips are currently Active in production, and both target the Mobile market segment.

FAQ

Q: Which processor is faster in Cinebench R23 multi-core?

A: The Intel Core i5-13450HX scores 16,797, which is 15.4% ahead of the Intel Core Ultra 7 165H’s 14,551.

Q: Does the Intel Core Ultra 7 165H win every benchmark?

A: No. The Ultra 7 wins 12 of 17 head-to-head benchmarks, but the i5-13450HX wins 5, including Cinebench R23 multi-core, PassMark data compression, PassMark extended instructions, and both PassMark single-thread tests.

Q: How do the core and thread counts compare?

A: The Intel Core Ultra 7 165H has 16 cores and 22 threads, while the Intel Core i5-13450HX has 10 cores and 16 threads.

Q: What is the TDP difference?

A: The Intel Core i5-13450HX has a TDP of 55 watts, while the Intel Core Ultra 7 165H has a TDP of 28 watts.

Q: Do both processors support ECC memory?

A: No. The Intel Core i5-13450HX supports ECC memory, while the Intel Core Ultra 7 165H does not.

Q: Which processor has a higher boost clock?

A: The Intel Core Ultra 7 165H has a boost clock of 5.00 GHz, compared to 4.60 GHz for the Intel Core i5-13450HX.

Where Each One Wins

The Intel Core Ultra 7 165H is the clear winner in physics simulation, leading by 16.7% in the PassMark physics test. It also dominates prime number finding with a 29.7% margin, making it ideal for mathematical and scientific workloads. The Ultra 7’s leads in floating-point math (6.8%) and integer math (6.9%) indicate a broad advantage in numerical computation. It also wins data encryption (3.1%), random string sorting (4.6%), and the multithread benchmark (3.3%). For users running short multi-core tasks, the Ultra 7’s wins in Cinebench R15 and R20 multi-core are relevant, as are its single-core wins in all three Cinebench versions.

The Intel Core i5-13450HX wins where sustained or SIMD-heavy work is required. Its 15.4% lead in Cinebench R23 multi-core is the single largest victory in the entire benchmark suite, suggesting it maintains performance over longer render times. The 10.3% win in extended instructions points to a strong AVX-512 or similar capability. Data compression goes to the i5-13450HX by 5.1%, which benefits archiving and database workloads. The 1.3% PassMark single-thread win is small but gives it a narrow edge in legacy single-threaded tasks. The i5-13450HX’s 20 MB L3 cache and higher 55-watt TDP support these sustained workloads.

Specification Differences

The two processors differ across nearly every major specification. The Intel Core i5-13450HX uses Raptor Lake architecture on a 10 nm process, while the Intel Core Ultra 7 165H uses Meteor Lake on a 7 nm process. Core counts are 10 versus 16, and threads are 16 versus 22. Base clocks are 2.40 GHz versus 3.80 GHz, and boost clocks are 4.60 GHz versus 5.00 GHz, both favoring the Ultra 7. TDP is 55 watts for the i5-13450HX and 28 watts for the Ultra 7.

Cache sizes differ at every level. The i5-13450HX has 80 KB L1 per core, while the Ultra 7 has 112 KB L1 per core. Both have 2 MB L2 per core. L3 cache is 20 MB shared for the i5-13450HX and 24 MB shared for the Ultra 7. Memory support differs: the i5-13450HX supports DDR4 and DDR5, while the Ultra 7 supports only DDR5 with motherboard-dependent speeds. ECC memory is supported only on the i5-13450HX. The Ultra 7 lists a memory bandwidth of 89.6 GB/s; no such figure is given for the i5-13450HX. PCIe lanes are 20 (Gen 5) for the i5-13450HX versus 8 (Gen 5) for the Ultra 7.

Integrated graphics are UHD Graphics 710 for the i5-13450HX and Arc Xe-LPG 128EU for the Ultra 7. Sockets are Intel BGA 1964 and Intel BGA 2049, respectively. The i5-13450HX has an unlocked multiplier; the Ultra 7 is locked. Launch MSRP is $326 for the i5-13450HX and $460 for the Ultra 7. Release dates are January 2023 for the i5-13450HX and December 2023 for the Ultra 7. Both are Active in production and target the Mobile market segment.