Intel Core 5 223PE vs Intel Core Ultra 5 250K Plus Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall win for the Intel Core Ultra 5 250K Plus, which takes 15 of the 17 head-to-head benchmark comparisons. The Core 5 223PE counters with just two wins, though both are notable for different reasons.

The largest margin in the entire comparison belongs to the Core 5 223PE in Cinebench R23 single-core, where it scores 3734 against 2261 for the Ultra 5, a 65.1% advantage. That is a striking outlier given the Ultra 5's higher boost clock of 5.30 GHz versus 5.20 GHz on the Core 5. The Core 5 also wins Cinebench R15 single-core, 376 to 328, a 14.6% gap. These results suggest the Bartlett Lake architecture prioritizes single-thread responsiveness, while the Arrow Lake Refresh design leans toward throughput.

Every other benchmark goes to the Ultra 5 250K Plus. The biggest losses for the Core 5 come in PassMark find prime numbers, where the Ultra 5 scores 486 against 159, a 67.3% deficit. PassMark data encryption shows a 56.2% gap (42144 versus 18448), and floating point math shows a 53% gap (162692 versus 76468). These are substantial margins that point to the Ultra 5's superior execution resources.

In multi-core rendering, the Ultra 5 leads consistently. Cinebench R15 multi-core shows 4640 versus 2666, a 42.5% lead. Cinebench R20 multi-core shows 18442 versus 11111, a 39.8% lead. Cinebench R23 multi-core is closer, with 30867 versus 26455, a 14.3% advantage. The smaller margin in R23 hints that the Core 5's 16 threads scale reasonably well under sustained load, even if its absolute throughput is lower.

PassMark multi-thread performance favors the Ultra 5 by 39.7% (51596 versus 31124). Integer math shows a 20.2% gap (125091 versus 99819), the narrowest PassMark deficit for the Core 5. Random string sorting swings 48.2% toward the Ultra 5 (69090 versus 35798), and data compression favors the Ultra 5 by 39.1% (568721 versus 346623). Extended instructions follow the same pattern, with the Ultra 5 ahead by 44.6% (44565 versus 24672).

Single-thread PassMark is interesting, as it contradicts the Cinebench single-core results. The Ultra 5 scores 4757 versus 4219 for the Core 5, an 11.3% lead. This discrepancy between Cinebench R23 single-core and PassMark single-thread suggests the two processors handle different instruction mixes with varying efficiency. The Core 5's Cinebench R23 win is large, but PassMark paints a different picture, so the single-thread story is workload dependent.

Physics simulation also favors the Ultra 5, scoring 3494 versus 2493, a 28.6% lead. Overall, the Ultra 5's average benchmark score sits at 66855, placing it in the 93rd percentile of all CPUs. The Core 5 averages 40585, good for the 87th percentile. The Ultra 5's nearest rival, the AMD EPYC 4465P, sits just 0.1% higher at 66925, while the Intel Xeon 6515P is 0.2% higher at 67006. The Core 5's closest competitor, the Intel Core 7 253PE, is only 0.1% lower at 40557, and the AMD Ryzen AI 5 PRO 435G is 0.3% higher at 40718.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Core Ultra 5 250K Plus wins 15 of the 17 comparisons. The Intel Core 5 223PE wins 2, both in Cinebench single-core tests.

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

A: The Core 5 223PE leads by 65.1% in Cinebench R23 single-core (3734 versus 2261). The Ultra 5's largest lead is 67.3% in PassMark find prime numbers (486 versus 159).

Q: How do the processors compare in multi-core rendering?

A: The Ultra 5 250K Plus leads in every multi-core Cinebench test. It is 42.5% ahead in R15, 39.8% ahead in R20, and 14.3% ahead in R23.

Q: Do the single-core results agree across different benchmarks?

A: No. The Core 5 223PE wins Cinebench R15 and R23 single-core, but the Ultra 5 250K Plus wins PassMark single-thread by 11.3% (4757 versus 4219).

Q: What do the percentile rankings show?

A: The Core 5 223PE ranks in the 87th percentile of all CPUs with an average score of 40585. The Ultra 5 250K Plus ranks in the 93rd percentile with an average score of 66855.

Q: How close are the nearest rivals for each processor?

A: The Core 5 223PE's closest rival is the Intel Core 7 253PE, which is 0.1% lower in average score. The Ultra 5 250K Plus's closest rival is the AMD EPYC 4465P, which is 0.1% higher.

Where Each One Wins

The Intel Core 5 223PE claims its territory in single-threaded Cinebench workloads. Its 65.1% margin in Cinebench R23 single-core is the standout result, and the 14.6% lead in Cinebench R15 single-core confirms a pattern. This processor appears tuned for legacy single-threaded rendering tasks that rely on high per-core efficiency. The 5.20 GHz boost clock and 16 threads (8 cores) serve this profile well.

The Intel Core Ultra 5 250K Plus dominates everywhere else. Its 18 cores and 18 threads provide a substantial multi-threading advantage, visible in the 42.5% Cinebench R15 multi-core lead and the 39.7% PassMark multi-thread lead. For encryption, compression, sorting, and extended instruction workloads, the Ultra 5's advantage ranges from 39.1% to 56.2%. The 67.3% lead in prime number finding is particularly large, indicating strong integer execution capabilities.

For users running PassMark single-thread tests, the Ultra 5 holds an 11.3% edge, which complicates the single-thread narrative. The Core 5 wins in Cinebench single-core but loses in PassMark single-thread, so the choice depends on which application family matters more.

The Ultra 5 also wins the physics simulation test by 28.6%, which may interest users running lightweight physics calculations. Integer math is the closest PassMark contest, with the Ultra 5 ahead by only 20.2%, so the Core 5 remains competitive in that specific workload.

Specification Differences

The two processors diverge significantly in core configuration. The Core 5 223PE has 8 cores and 16 threads, while the Ultra 5 250K Plus has 18 cores and 18 threads. This means the Ultra 5 has no hyperthreading, relying on physical cores alone, while the Core 5 doubles its thread count through simultaneous multithreading.

Clock speeds differ modestly. The Core 5 has a 2.90 GHz base clock and 5.20 GHz boost clock. The Ultra 5 has a 4.20 GHz base clock and 5.30 GHz boost clock. The Ultra 5's higher base clock is notable for sustained workloads, while the boost clocks are nearly identical.

Thermal design power differs by 60 watts. The Core 5 is rated at 65 W, while the Ultra 5 is rated at 125 W. This reflects the Ultra 5's larger core count and higher operating frequencies.

Sockets are incompatible. The Core 5 uses Intel Socket 1700, while the Ultra 5 uses Intel Socket 1851. Memory support also differs: the Core 5 supports DDR4 and DDR5, while the Ultra 5 supports DDR5 only. Both use dual-channel memory buses. Memory bandwidth favors the Ultra 5 at 115.2 GB/s versus 89.6 GB/s for the Core 5.

PCIe lane counts differ, with the Ultra 5 offering Gen 5 with 20 lanes (CPU only) versus Gen 5 with 16 lanes (CPU only) for the Core 5. Integrated graphics differ as well: the Core 5 uses UHD Graphics 730, while the Ultra 5 uses Arc Xe-LPG Graphics 64EU. Both support ECC memory.

The multiplier is unlocked on the Ultra 5 but locked on the Core 5. Release dates are two days apart, with the Core 5 on March 8, 2026, and the Ultra 5 on March 10, 2026.

Architecture Differences

The Core 5 223PE is built on Bartlett Lake using a 10 nm process node from Intel. The Ultra 5 250K Plus uses Arrow Lake Refresh on a 3 nm process node from TSMC. This process difference is substantial, with the Ultra 5's smaller node enabling higher transistor density. The Ultra 5 packs 17,800 million transistors on a 243 mm² die, while the Core 5's transistor count and die size are not recorded in the database.

Cache hierarchies differ across all levels. The Core 5 has 80 KB of L1 cache per core, 2 MB of L2 per core, and 24 MB of shared L3. The Ultra 5 has 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3. The Ultra 5's larger per-core L1 and L2 caches, combined with the higher L3 total, support its broader execution footprint.

The generation labels reflect different lineages. The Core 5 is listed as Core 5 (Bartlett Lake), while the Ultra 5 is listed as Ultra 5 (Arrow Lake). The Ultra 5 also carries the "Core Ultra Series 2" series designation, which the Core 5 lacks.

Foundry choices differ, with Intel producing the Bartlett Lake chip and TSMC producing the Arrow Lake Refresh chip. This architectural split explains some of the performance differences, particularly in power efficiency and multi-core scaling.

The Verdict

The Intel Core Ultra 5 250K Plus is the stronger processor by nearly every measurable metric. With 15 benchmark wins out of 17, an average score of 66855, and a 93rd percentile ranking, it delivers roughly 64.8% higher average performance than the Core 5's 40585. The 18 physical cores provide a clear advantage in multi-threaded workloads, and the 3 nm TSMC process enables higher transistor counts on a smaller die.

The Core 5 223PE remains appealing only for specific single-threaded Cinebench scenarios. Its 65.1% lead in Cinebench R23 single-core and 14.6% lead in Cinebench R15 single-core are real advantages for users running those exact workloads. Its 65 W TDP also indicates lower power draw, and its DDR4 support offers memory flexibility that the Ultra 5 lacks.

For most computing tasks, the data points to the Ultra 5 250K Plus. Its PassMark wins span encryption, compression, sorting, math operations, and physics. The single-thread PassMark result (4757 versus 4219) further supports the Ultra 5's broader applicability. The Core 5's Cinebench single-core wins appear workload-specific rather than representative of general single-thread performance.

Users prioritizing Cinebench R23 single-core scores or requiring DDR4 compatibility should consider the Core 5 223PE. Users needing multi-core throughput, encryption performance, or any PassMark-based workload should choose the Ultra 5 250K Plus. The 18-core configuration, higher memory bandwidth, and larger caches make the Ultra 5 the more capable processor for sustained and parallel tasks.