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

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core 5 223PE and the Intel Core Ultra 5 250KF Plus shows a consistent outcome across all 17 recorded tests, with the Core Ultra 5 250KF Plus winning every single matchup. The average benchmark score for the Core Ultra 5 250KF Plus is 66159, while the Core 5 223PE averages 40585, a gap that places them in different performance tiers entirely.

The largest disparity appears in prime number finding, where the Core Ultra 5 250KF Plus scores 452 versus 159 for the Core 5 223PE, a 64.8% advantage. Data encryption shows a 55.3% delta, with scores of 41292 and 18448 respectively. Floating point math follows at 52.2% ahead, recording 159824 against 76468. Random string sorting delivers a 46.7% edge, with 67209 versus 35798. Extended instructions run 42.5% faster on the Core Ultra, scoring 42880 compared to 24672.

Multi-threaded workloads show a similar pattern. Cinebench R15 multicore results put the Core Ultra at 4305 against 2666, a 38.1% lead. The same percentage delta applies across all Cinebench tests, including R20 multicore (17941 versus 11111) and R23 multicore (42718 versus 26455). PassMark multithread shows 50146 versus 31124, a 37.9% gap. Data compression runs 37.3% ahead at 553155 versus 346623.

The most competitive area is single-thread performance. PassMark single thread scores 4698 for the Core Ultra versus 4219 for the Core 5, a 10.2% difference. Cinebench R23 single-core shows 6030 versus 3734, still a 38.1% delta. Physics tests reveal a 21.7% gap, with 3183 and 2493. Integer math is the narrowest multi-core result at 18.9% apart, scoring 123030 and 99819.

The percentile ranking reinforces this separation. The Core Ultra 5 250KF Plus sits at the 93rd percentile among all CPUs in the database, while the Core 5 223PE ranks at the 87th percentile. The nearest rivals for the Core Ultra include the AMD Ryzen 9 7950X3D at a 0.4% difference and the Intel Core Ultra 5 250K Plus at -1%. 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.

Architecture Differences

The two processors come from entirely different manufacturing approaches. The Core 5 223PE uses a 10 nm process fabricated by Intel, while the Core Ultra 5 250KF Plus uses a 3 nm process from TSMC. The transistor count reflects this generational shift: the Core Ultra packs 17,800 million transistors on a 243 mm² die, figures not recorded for the Core 5.

Core and thread configurations differ substantially. The Core 5 223PE has 8 cores and 16 threads, while the Core Ultra 5 250KF Plus has 18 cores and 18 threads. The Core Ultra uses a design without hyper-threading, hence equal core and thread counts, whereas the Core 5 doubles its thread count through simultaneous multi-threading.

Clock speeds favor the Core Ultra. Its base clock runs at 4.20 GHz with a boost of 5.30 GHz, compared to 2.90 GHz base and 5.20 GHz boost on the Core 5. Thermal design power scales accordingly, with the Core Ultra rated at 125 W and the Core 5 at 65 W.

Cache hierarchies show a step up across every level. The Core 5 provides 80 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3. The Core Ultra offers 192 KB L1 per core, 3 MB L2 per core, and 30 MB shared L3. Memory bandwidth improves from 89.6 GB/s on the Core 5 to 115.2 GB/s on the Core Ultra. Both support dual-channel memory, but the Core 5 accepts DDR4 and DDR5 while the Core Ultra is DDR5 only. Both support ECC memory.

Socket compatibility differs completely. The Core 5 uses Intel Socket 1700, while the Core Ultra uses Intel Socket 1851. PCIe lanes increase from 16 on the Core 5 to 20 on the Core Ultra, both at Gen 5 speeds. The Core 5 includes integrated UHD Graphics 730, while the Core Ultra has no integrated graphics. The Core Ultra has an unlocked multiplier, allowing overclocking, while the Core 5 does not.

The codenames reflect different product lines: Bartlett Lake for the Core 5 and Arrow Lake Refresh for the Core Ultra. Release dates sit close together, with the Core 5 arriving on 2026-03-08 and the Core Ultra on 2026-03-10. Both are listed as Active production and target the Desktop market segment.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 250KF Plus has 18 cores and 18 threads. The Intel Core 5 223PE has 8 cores and 16 threads.

Q: How large is the single-thread performance gap?

A: PassMark single thread scores show 4698 for the Core Ultra versus 4219 for the Core 5, a 10.2% difference. Cinebench R23 single-core shows a larger 38.1% gap, with 6030 versus 3734.

Q: Do both processors support ECC memory?

A: Yes, both the Core 5 223PE and the Core Ultra 5 250KF Plus list ECC memory support as true.

Q: Which processor has integrated graphics?

A: Only the Intel Core 5 223PE has integrated graphics, listed as UHD Graphics 730. The Core Ultra 5 250KF Plus has no integrated graphics.

Q: What is the thermal design power difference?

A: The Core Ultra 5 250KF Plus is rated at 125 W TDP, while the Core 5 223PE is rated at 65 W.

Q: Can either processor be overclocked?

A: The Core Ultra 5 250KF Plus has an unlocked multiplier, enabling overclocking. The Core 5 223PE does not have an unlocked multiplier.

The Verdict

The recorded data indicates a clear performance hierarchy. The Core Ultra 5 250KF Plus wins all 17 head-to-head benchmarks, with an average score 63% higher than the Core 5 223PE (66159 versus 40585). Its 93rd percentile ranking versus the 87th percentile of the Core 5 confirms the separation.

The Core 5 223PE does hold some advantages in the data. It uses less power at 65 W versus 125 W. It includes integrated graphics, which the Core Ultra lacks. It supports both DDR4 and DDR5 memory, offering platform flexibility. It uses Intel Socket 1700, which may be more widely available in existing systems.

The Core Ultra 5 250KF Plus counters with a more modern 3 nm process from TSMC, higher clock speeds, more cores, more cache at every level, higher memory bandwidth, more PCIe lanes, and an unlocked multiplier. Its nearest rival, the AMD Ryzen 9 7950X3D, sits only 0.4% away, placing it in flagship-adjacent territory.

For workloads that benefit from many cores, such as rendering, compression, or encryption, the Core Ultra is the clear choice based on the data. Its 64.8% lead in prime number finding and 55.3% lead in encryption show particularly strong math and cryptographic throughput.

Specification Differences

| Specification | Intel Core 5 223PE | Intel Core Ultra 5 250KF Plus |

|---|---|---|

| Cores | 8 | 18 |

| Threads | 16 | 18 |

| Base clock | 2.90 GHz | 4.20 GHz |

| Boost clock | 5.20 GHz | 5.30 GHz |

| TDP | 65 W | 125 W |

| Socket | Intel Socket 1700 | Intel Socket 1851 |

| Codename | Bartlett Lake | Arrow Lake Refresh |

| Process node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Transistors | Not recorded | 17,800 million |

| Die size | Not recorded | 243 mm² |

| L1 cache | 80 KB (per core) | 192 KB (per core) |

| L2 cache | 2 MB (per core) | 3 MB (per core) |

| L3 cache | 24 MB (shared) | 30 MB (shared) |

| Memory support | DDR4, DDR5 | DDR5 |

| Memory bandwidth | 89.6 GB/s | 115.2 GB/s |

| PCIe | Gen 5, 16 lanes (CPU only) | Gen 5, 20 lanes (CPU only) |

| Integrated graphics | UHD Graphics 730 | N/A |

| Multiplier unlocked | No | Yes |

| Launch MSRP | $232 | $184 |

Where Each One Wins

The Core Ultra 5 250KF Plus wins every benchmark category recorded. Its largest margins come in pure computational throughput: prime number finding (64.8% ahead), data encryption (55.3%), floating point math (52.2%), and random string sorting (46.7%). These results indicate strong performance for scientific computing, cryptographic workloads, financial modeling, and data processing tasks.

The smallest gaps appear in single-threaded performance. PassMark single thread shows only a 10.2% difference, and integer math is 18.9% apart. This suggests that for lightly threaded applications, the Core 5 223PE remains closer in capability, though still behind. Physics simulations show a 21.7% gap, placing it in the middle range of the comparison.

The Core 5 223PE wins in areas outside raw benchmark scores. Its 65 W TDP makes it suitable for power-constrained environments. The integrated UHD Graphics 730 allows systems to operate without a discrete GPU. DDR4 support provides compatibility with older memory platforms. The Socket 1700 interface may fit existing motherboard infrastructure.

The Core Ultra 5 250KF Plus offers a different set of platform advantages. The 3 nm process with TSMC fabrication delivers a more advanced transistor design. The 17,800 million transistor count on a 243 mm² die indicates a dense, modern architecture. The unlocked multiplier enables frequency tuning. Twenty PCIe Gen 5 lanes provide more expansion bandwidth. The 115.2 GB/s memory bandwidth supports data-intensive workloads.

The production status for both processors is Active, and both target the Desktop market segment. The Core Ultra 5 250KF Plus sits at the 93rd percentile versus the 87th percentile for the Core 5 223PE. Users prioritizing multi-core throughput, encryption, or floating point performance should select the Core Ultra based on the benchmark record. Users prioritizing lower power draw, integrated graphics, or DDR4 compatibility should consider the Core 5, acknowledging its consistent but smaller performance envelope.