Intel Core 7 253PQE vs Intel Core Ultra 5 245K Comparison

The Intel Core 7 253PQE and Intel Core Ultra 5 245K are both active desktop processors, but they target different strengths. The 253PQE, built on Bartlett Lake, leans on high clock speeds and a legacy architecture, while the 245K, from Arrow Lake, offers more physical cores and a newer process. Benchmark results show a clear split: the Core Ultra 5 245K wins 12 of 17 head-to-head tests, but the Core 7 253PQE delivers dramatic victories in specific workloads, including a 107.8% lead in one single-core test. This is not a one-sided contest; it is a matter of workload matching.

Head-to-Head Benchmarks

The most striking result is in Cinebench R23 single-core, where the Core 7 253PQE scores 4431 against the Core Ultra 5 245K’s 2132, a 107.8% advantage. This is a massive gap, driven by the 253PQE’s 5.70 GHz boost clock versus the 245K’s 5.20 GHz. The Core 7 also wins Cinebench R15 single-core by 38.5% (446 vs 322), and Cinebench R23 multi-core by 25.2% (31390 vs 25066). These are not marginal wins; they represent a decisive edge in both lightly-threaded and heavily-threaded rendering tasks in that benchmark version.

The Core Ultra 5 245K, however, dominates the Passmark suite and newer Cinebench versions. In Cinebench R20 multi-core, it scores 15368 vs 13183, a 14.2% win, and in Cinebench R20 single-core it wins by 14.2% (2169 vs 1861). The 245K’s Passmark results are consistently higher: data encryption is 33286 vs 25515 (23.3% ahead), extended instructions are 37617 vs 32390 (13.9% ahead), and floating-point math is 130678 vs 105279 (19.4% ahead). The 245K also wins Passmark multi-thread (43047 vs 41656, 3.2% ahead) and Passmark single-thread (4714 vs 4389, 6.9% ahead).

The largest single delta in the entire comparison is the Core 7’s 107.8% single-core lead in Cinebench R23, but the Core Ultra 5 counters with a 50.2% win in Passmark find prime numbers (414 vs 206). The Core 7’s other wins include Passmark integer math (137795 vs 98524, 39.9% ahead) and Passmark data compression (487335 vs 458817, 6.2% ahead). The data shows a pattern: the Core 7 excels in integer-heavy and older rendering tasks, while the Core Ultra 5 wins in encryption, floating-point, and memory-sensitive operations.

Where Each One Wins

The Core 7 253PQE is the clear choice for scenarios that favor raw single-thread speed and specific integer workloads. Its 107.8% lead in Cinebench R23 single-core makes it ideal for legacy software that does not scale across many cores. The 39.9% advantage in Passmark integer math suggests strong performance in code compilation, spreadsheet calculations, and database operations that rely on integer arithmetic. The 6.2% win in data compression also points to file archiving and backup tasks, where the 253PQE’s higher boost clock can push through sequential operations faster.

The Core Ultra 5 245K, with its 14 cores and 14 threads (vs the Core 7’s 10 cores and 20 threads), is better suited for parallel, multi-threaded modern workloads. Its 23.3% lead in data encryption and 19.4% lead in floating-point math indicate strength in scientific computing, financial modeling, and media rendering that uses floating-point precision. The 13.9% advantage in extended instructions suggests better support for AVX-512-like workloads. The 245K also wins in Passmark physics (3081 vs 2970, 3.6% ahead) and random string sorting (55098 vs 54222, 1.6% ahead), though these margins are narrow.

For gaming, the picture is mixed. The Core 7’s higher boost clock (5.70 GHz) gives it a theoretical edge in single-threaded game logic, but the Core Ultra 5’s 6.9% lead in Passmark single-thread (4714 vs 4389) suggests its newer architecture is more efficient per clock. The 245K’s 3.2% win in Passmark multi-thread also helps in modern games that use multiple cores. Ultimately, the Core 7 is the pick for older, clock-hungry applications, while the Core Ultra 5 is the pick for modern, multi-threaded productivity and computation.

Architecture Differences

The two processors are built on fundamentally different foundations. The Core 7 253PQE uses the Bartlett Lake codename, fabricated on Intel’s 10 nm process, while the Core Ultra 5 245K uses the Arrow Lake-S codename, built on TSMC’s 3 nm process. This is a major generational shift: the 3 nm node is significantly denser, with the 245K packing 17,800 million transistors into a 243 mm² die, whereas the 253PQE’s transistor count and die size are not listed in the data.

Core configuration differs sharply. The 253PQE has 10 cores and 20 threads, meaning it uses simultaneous multithreading (SMT) to double thread count. The 245K has 14 cores but only 14 threads, indicating it does not use SMT. This explains why the 245K wins in many multi-threaded tests despite having fewer threads—its physical cores are more efficient. Cache is also different: the 253PQE has 80 KB L1 per core, 2 MB L2 per core, and 33 MB shared L3. The 245K has 192 KB L1 per core, 3 MB L2 per core, but only 24 MB shared L3. The larger L3 on the 253PQE helps in its Cinebench R23 multi-core win.

Memory support diverges: the 253PQE supports both DDR4 and DDR5, while the 245K supports only DDR5. Both are dual-channel, but the 245K has higher memory bandwidth at 102.4 GB/s vs 89.6 GB/s for the 253PQE. PCIe lanes also differ: the 253PQE offers 16 lanes of Gen 5, while the 245K offers 20 lanes of Gen 5. Integrated graphics are distinct, with the 253PQE using UHD Graphics 770 and the 245K using Arc Xe-LPG Graphics 64EU. Both support ECC memory, and both are desktop parts, but they use different sockets: Socket 1700 for the 253PQE and Socket 1851 for the 245K.

FAQ

Q: Which processor has a higher boost clock, and does it matter?

A: The Intel Core 7 253PQE has a boost clock of 5.70 GHz, compared to 5.20 GHz on the Core Ultra 5 245K. This contributes to the 253PQE’s 107.8% lead in Cinebench R23 single-core, where it scores 4431 vs 2132.

Q: Why does the Core Ultra 5 245K win more benchmarks despite having fewer threads?

A: The 245K has 14 physical cores and 14 threads, while the 253PQE has 10 cores and 20 threads. The 245K’s 3 nm process and newer Arrow Lake architecture allow its physical cores to be more efficient, leading to wins in 12 of 17 tests, including a 23.3% lead in data encryption.

Q: Which processor is better for multi-core rendering?

A: It depends on the benchmark. The Core 7 253PQE wins Cinebench R23 multi-core by 25.2% (31390 vs 25066), while the Core Ultra 5 245K wins Cinebench R20 multi-core by 14.2% (15368 vs 13183). The 245K also wins Passmark multi-thread by 3.2% (43047 vs 41656).

Q: Do these processors use the same memory?

A: No. The Core 7 253PQE supports both DDR4 and DDR5, while the Core Ultra 5 245K supports only DDR5. Both are dual-channel, but the 245K has higher memory bandwidth at 102.4 GB/s vs 89.6 GB/s.

Q: Are these processors unlocked for overclocking?

A: The Core Ultra 5 245K has an unlocked multiplier, while the Core 7 253PQE does not. This means the 245K allows user-controlled overclocking, which may offset some of the 253PQE’s clock speed advantage.

Q: What are the integrated graphics options?

A: The Core 7 253PQE uses UHD Graphics 770, while the Core Ultra 5 245K uses Arc Xe-LPG Graphics 64EU. The 245K’s graphics are from a newer generation, but the data does not include graphics benchmarks.

Specification Differences

| Specification | Intel Core 7 253PQE | Intel Core Ultra 5 245K |

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

| Cores | 10 | 14 |

| Threads | 20 | 14 |

| Base Clock | 3.50 GHz | 4.20 GHz |

| Boost Clock | 5.70 GHz | 5.20 GHz |

| Socket | Intel Socket 1700 | Intel Socket 1851 |

| Codename | Bartlett Lake | Arrow Lake-S |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Transistors | Not listed | 17,800 million |

| Die Size | Not listed | 243 mm² |

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

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

| L3 Cache | 33 MB (shared) | 24 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bandwidth | 89.6 GB/s | 102.4 GB/s |

| PCIe | Gen 5, 16 Lanes | Gen 5, 20 Lanes |

| Integrated Graphics | UHD Graphics 770 | Arc Xe-LPG Graphics 64EU |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | $409 | $319 |

| Release Date | 2026-03-08 | 2024-10-23 |