Intel Core 5 223PE vs Intel Core Ultra 7 255H Comparison

The Intel Core 5 223PE and Intel Core Ultra 7 255H target entirely different platforms, but their benchmark data reveals a fascinating inversion of expectations. The desktop-oriented Core 5 223PE dominates most compute-heavy workloads, while the mobile Core Ultra 7 255H counters in specific tasks. The database records 11 benchmark wins for the Core 5 223PE against 6 for the Core Ultra 7 255H, yet the average benchmark scores tell a different story: 40585 for the Core 5 223PE versus 33537 for the Core Ultra 7 255H, a gap that underscores the former's overall performance lead.

Head-to-Head Benchmarks

The most dramatic separation occurs in the Cinebench suite, where the Core 5 223PE delivers overwhelming victories. In Cinebench R23 multi-core, the Core 5 223PE scores 26455 against 9240 for the Core Ultra 7 255H, a 186.3% advantage. The single-core result is equally lopsided: 3734 versus 1843, a 102.6% delta. These are not marginal differences; the desktop chip more than doubles the mobile processor's output in both metrics.

Older Cinebench versions follow the same pattern. Cinebench R20 multi-core shows 11111 for the Core 5 223PE versus 6381, a 74.1% lead, while single-core records 1568 against 900, a 74.2% gap. Cinebench R15 multi-core delivers 2666 versus 1515, a 76% difference, and single-core 376 versus 251, a 49.8% margin. The consistency across all three Cinebench generations confirms that the Core 5 223PE holds a structural advantage in rendering and CPU-bound synthetic workloads.

The Passmark suite offers a more nuanced picture. The Core 5 223PE wins integer math decisively, scoring 99819 against 77975, a 28% advantage. Data compression also favors the desktop chip, 346623 versus 298850, a 16% lead. Extended instructions go to the Core 5 223PE by a slim 3.9% margin, 24672 against 23755. The multithread test is close, 31124 versus 30703, a 1.4% win for the Core 5 223PE, and physics shows a 10.6% edge at 2493 versus 2254.

The Core Ultra 7 255H fights back in several specialized workloads. Floating point math heavily favors the mobile chip, 98796 versus 76468, a 22.6% delta. Find prime numbers shows a 47.5% advantage for the Core Ultra 7 255H, 303 versus 159. Data encryption also goes to the mobile processor, 23395 against 18448, a 21.1% margin. Random string sorting and single-thread tests are nearly tied: 36058 versus 35798 for sorting, a 0.7% edge, and 4317 versus 4219 for single-thread, a 2.3% lead, both favoring the Core Ultra 7 255H.

The Core Ultra 7 255H holds a Geekbench presence in the database with 14024 multi-core and 2335 single-core, though no direct head-to-head Geekbench comparison is recorded against the Core 5 223PE. The percentile rankings place the Core 5 223PE at 87th percentile versus 83rd for the Core Ultra 7 255H, meaning the desktop chip outperforms a larger share of all recorded CPUs.

FAQ

Q: Which processor wins more individual benchmark comparisons?

A: The Intel Core 5 223PE wins 11 of the 17 recorded head-to-head benchmarks, while the Intel Core Ultra 7 255H wins 6.

Q: How large is the Cinebench R23 multi-core gap?

A: The Core 5 223PE scores 26455 versus 9240 for the Core Ultra 7 255H, a 186.3% advantage for the desktop chip.

Q: Does the Core Ultra 7 255H win any significant workloads?

A: Yes, it leads in floating point math by 22.6%, find prime numbers by 47.5%, and data encryption by 21.1%, plus narrow wins in single-thread and random string sorting.

Q: What is the average benchmark score difference?

A: The Core 5 223PE averages 40585, while the Core Ultra 7 255H averages 33537, a difference of 7048 points.

Q: How do the nearest rivals compare for each processor?

A: The Core 5 223PE sits within 0.3% of the AMD Ryzen AI 5 PRO 435G and within 0.2% of the Intel Core Ultra X7 368H. The Core Ultra 7 255H is within 0.5% of the Intel Core i5-12600HX and within 0.4% of the AMD Ryzen 7 8840HS and AMD Ryzen 5 7645HX.

Q: Which chip has the higher single-thread Passmark score?

A: The Core Ultra 7 255H scores 4317 versus 4219 for the Core 5 223PE, a 2.3% advantage for the mobile chip.

Architecture Differences

The two processors come from different Intel design lineages. The Core 5 223PE uses the Bartlett Lake codename and belongs to the Core 5 generation, built on a 10 nm process at Intel's own foundry. The Core Ultra 7 255H uses the Arrow Lake-H codename with the Arrow Lake architecture, part of the Core Ultra Series 2, fabricated on a 3 nm node at TSMC. This process difference is substantial: the Core Ultra 7 255H uses a more advanced manufacturing node, which typically enables higher transistor density and better power efficiency per clock.

Core counts differ significantly. The Core 5 223PE packs 8 cores with 16 threads, while the Core Ultra 7 255H uses 16 cores but also 16 threads, indicating a hybrid arrangement where not all cores contribute to thread count. The Core Ultra 7 255H features larger per-core caches: 192 KB L1 and 3 MB L2 per core, versus 80 KB L1 and 2 MB L2 per core for the Core 5 223PE. Both share 24 MB of L3 cache, so the mobile chip compensates for its lower clock speeds with more generous local cache.

The integrated graphics differ completely. The Core 5 223PE carries UHD Graphics 730, while the Core Ultra 7 255H uses Arc Graphics 140T, a more capable integrated GPU by market positioning. The Core Ultra 7 255H also supports LPDDR5X memory in addition to DDR5, whereas the Core 5 223PE supports DDR4 and DDR5. Memory bandwidth favors the mobile chip at 102.4 GB/s versus 89.6 GB/s for the desktop part.

The Core 5 223PE runs at a base clock of 2.90 GHz with a 5.20 GHz boost, while the Core Ultra 7 255H starts lower at 2.00 GHz base but boosts to 5.10 GHz. The desktop chip draws 65 W TDP against 28 W for the mobile part, reflecting the power envelope difference between socketed desktop and BGA mobile designs. Both support ECC memory and use PCIe Gen 5, though the Core Ultra 7 255H offers 20 lanes versus 16 for the Core 5 223PE.

Specification Differences

The Core 5 223PE and Core Ultra 7 255H differ in nearly every core specification. The desktop chip has 8 cores and 16 threads; the mobile chip has 16 cores and 16 threads. Base clocks are 2.90 GHz versus 2.00 GHz, and boost clocks are 5.20 GHz versus 5.10 GHz. TDP is 65 W versus 28 W. The Core 5 223PE uses Intel Socket 1700, while the Core Ultra 7 255H uses Intel BGA 2049.

Cache structures diverge in L1 and L2 sizes, with the Core Ultra 7 255H offering 192 KB L1 and 3 MB L2 per core against 80 KB L1 and 2 MB L2 per core for the Core 5 223PE. L3 is identical at 24 MB shared. Memory support differs: DDR4 and DDR5 for the desktop chip, DDR5 and LPDDR5X for the mobile chip. Memory bandwidth goes to the Core Ultra 7 255H at 102.4 GB/s versus 89.6 GB/s.

The manufacturing process and foundry differ: 10 nm at Intel for the Core 5 223PE, 3 nm at TSMC for the Core Ultra 7 255H. PCIe lane counts differ at 16 versus 20, both Gen 5. Integrated graphics differ between UHD Graphics 730 and Arc Graphics 140T. The release dates are distinct: the Core Ultra 7 255H launched in January 2025, while the Core 5 223PE arrived in March 2026. Both are listed as Active production and neither has an unlocked multiplier. The Core 5 223PE carries a launch MSRP of $232; the Core Ultra 7 255H has no recorded launch MSRP. Part numbers are SA4QF and SRQAN respectively.

The Verdict

The benchmark data defines a clear separation of roles. The Intel Core 5 223PE is the stronger compute processor by average score, holding a 21% lead over the Core Ultra 7 255H in the database's aggregate metric. Its Cinebench dominance, especially the 186.3% margin in R23 multi-core, makes it the obvious choice for workloads that stress sustained multi-threaded rendering or compilation. The 87th percentile ranking versus 83rd for the Core Ultra 7 255H reinforces this position.

The Core Ultra 7 255H should be selected when the workload leans toward floating point math, prime number calculations, or encryption tasks, where it leads by 22.6%, 47.5%, and 21.1% respectively. Its 16 cores and larger per-core cache, paired with a 28 W TDP and TSMC's 3 nm process, position it for efficiency-sensitive mobile environments. The single-thread Passmark edge, 4317 versus 4219, also favors the mobile chip for lightly threaded applications.

The nearest rival data contextualizes each chip within its own tier. The Core 5 223PE trades blows with the AMD Ryzen AI 5 PRO 435G, trailing by 0.3%, and sits 0.2% ahead of the Intel Core Ultra X7 368H. The Core Ultra 7 255H matches the AMD Ryzen 5 240 exactly at 0% delta and sits 0.5% ahead of the Intel Core i5-12600HX. These figures indicate both processors hold competitive positions in their respective segments.

The choice reduces to platform and workload priority. Desktop users needing maximum multi-core throughput should favor the Core 5 223PE, whose 26455 Cinebench R23 score and 24 MB L3 cache deliver class-leading synthetic performance. Mobile users prioritizing encryption, floating point, and power efficiency should choose the Core Ultra 7 255H, whose 102.4 GB/s memory bandwidth and 3 nm process compensate for lower raw clock speeds. The 87th and 83rd percentile rankings confirm that both chips sit comfortably above the median, but the Core 5 223PE owns the overall performance crown in this comparison.