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

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core 7 253PQE leads with an average benchmark score of 55919, while the Intel Core Ultra 5 245KF trails at 55093. The 253PQE sits 0.6% above the AMD Ryzen 9 9900X3D, whereas the 245KF is 1.5% below the 253PQE.

Q: How do the two chips compare in multi-threaded Cinebench R23 performance?

A: The Intel Core Ultra 5 245KF wins Cinebench R23 multi-core with a score of 36647 versus 31390 for the 253PQE, a 14.3% advantage. In PassMark multithread, the margin shrinks to 43110 versus 41656, a 3.4% lead for the 245KF.

Q: Which processor excels in integer math workloads?

A: The Intel Core 7 253PQE dominates PassMark integer math with a score of 137795 versus 98854 for the 245KF, a massive 39.4% advantage. This is the largest single-benchmark gap between the two.

Q: Does the Core Ultra 5 245KF support ECC memory?

A: No. The 245KF does not support ECC memory, while the Core 7 253PQE does. The 253PQE also supports both DDR4 and DDR5, whereas the 245KF is DDR5-only.

Q: What are the socket requirements for each processor?

A: The Core 7 253PQE uses Intel Socket 1700, while the Core Ultra 5 245KF uses Intel Socket 1851. They are not socket-compatible.

Q: Which chip has the higher boost clock?

A: The Core 7 253PQE boosts to 5.70 GHz, which is higher than the 245KF's 5.20 GHz. However, the 245KF has a higher base clock at 4.20 GHz versus 3.50 GHz.

Architecture Differences

The two processors represent fundamentally different design philosophies from Intel. The Core 7 253PQE is built on the Bartlett Lake architecture using a 10 nm process at Intel's own foundry, while the Core Ultra 5 245KF uses the Arrow Lake architecture on a 3 nm node fabricated by TSMC.

Threading strategy differs sharply. The 253PQE packs 10 cores with 20 threads via Hyper-Threading, giving it 10 more threads than physical cores. The 245KF has 14 physical cores but only 14 threads, meaning no Hyper-Threading at all. This explains why the 253PQE wins integer math (137795 versus 98854) while the 245KF wins most other workloads.

Cache hierarchies diverge significantly. The 253PQE offers 80 KB L1 per core and 2 MB L2 per core, with a large 33 MB shared L3. The 245KF provides 192 KB L1 per core and 3 MB L2 per core, but only 24 MB shared L3. The 253PQE's larger L3 cache likely helps its data compression score.

Process node advantages favor the 245KF. It uses a 3 nm TSMC process with 17,800 million transistors on a 243 mm² die. The 253PQE's 10 nm Intel process has no listed transistor or die size data.

Memory support is a differentiator. The 253PQE supports both DDR4 and DDR5 with a dual-channel bus at 89.6 GB/s bandwidth. The 245KF is DDR5-only but offers higher bandwidth at 102.4 GB/s. The 253PQE supports ECC memory; the 245KF does not.

PCIe configurations also differ. The 253PQE provides Gen 5 with 16 lanes (CPU only), while the 245KF offers Gen 5 with 20 lanes (CPU only). The 245KF has no integrated graphics, whereas the 253PQE includes UHD Graphics 770.

The 245KF has an unlocked multiplier for overclocking; the 253PQE is locked. Release timing also differs—the 245KF launched in October 2024, while the 253PQE is a 2026 release.

Head-to-Head Benchmarks

The head-to-head data shows a clear overall winner: the Core Ultra 5 245KF takes 15 of 17 benchmarks, while the 253PQE wins only 2.

Cinebench results are uniformly in favor of the 245KF. In R15 multi-core, the 245KF scores 3693 versus 3163, a 14.4% margin. R15 single-core shows 521 versus 446, also 14.4%. R20 multi-core delivers 15391 versus 13183 (14.3% lead), and R20 single-core is 2172 versus 1861 (14.3%). R23 multi-core sees 36647 versus 31390 (14.3%), while R23 single-core is 5173 versus 4431 (14.3%). These consistent deltas indicate a systematic performance advantage across rendering workloads.

PassMark tests reveal a more nuanced picture. The 245KF wins data encryption decisively: 33381 versus 25515, a 23.6% lead. Extended instructions favor the 245KF at 37912 versus 32390 (14.6%). Find prime numbers shows the largest percentage gap: 416 versus 206, a 50.5% blowout for the 245KF. Floating-point math also goes to the 245KF: 131546 versus 105279, a 20% margin.

The 253PQE's two wins are notable. Data compression goes to the 253PQE at 487335 versus 460123, a 5.9% edge. Integer math is a dominant 39.4% win for the 253PQE at 137795 versus 98854.

Close contests appear in multithread (43110 versus 41656, 3.4% for the 245KF), physics (2998 versus 2970, 0.9% for the 245KF), and random string sorting (55206 versus 54222, 1.8% for the 245KF). Single-thread PassMark shows a 6.9% edge for the 245KF at 4715 versus 4389.

The 245KF's nearest rival delta of -1.5% against the 253PQE confirms the overall benchmark average favors the 253PQE slightly, despite losing most individual tests.

The Verdict

The data supports a clear verdict: the Intel Core Ultra 5 245KF is the superior performer for most workloads. It wins 15 of 17 head-to-head benchmarks, including every Cinebench test, with margins ranging from 0.9% to 50.5%. Its biggest advantages come in prime number finding (50.5%), data encryption (23.6%), and floating-point math (20%).

However, the Intel Core 7 253PQE holds a narrow overall average benchmark lead of 55919 versus 55093. This is driven by its massive 39.4% integer math win and a 5.9% data compression victory. The 253PQE also offers ECC memory support, DDR4 compatibility, and integrated graphics—features absent from the 245KF.

For users prioritizing integer-heavy workloads, data compression, or needing ECC memory, the 253PQE is the data-backed choice. For nearly everything else—rendering, encryption, floating-point math, single-thread performance, and general multithreading—the 245KF wins.

The 245KF also offers an unlocked multiplier for overclocking and 20 PCIe Gen 5 lanes versus 16. Its higher base clock (4.20 GHz versus 3.50 GHz) and 3 nm TSMC process suggest better efficiency characteristics, though the 253PQE counters with a higher boost clock (5.70 GHz versus 5.20 GHz).

Both chips sit at the 91st percentile among all CPUs, placing them in the same performance tier. The 245KF's nearest rival list includes the AMD Ryzen 9 9900X3D at 54762 (0.6% behind the 245KF), while the 253PQE's rivals include the Intel Core i9-14900HX at 56004 (0.2% behind the 253PQE).

Specification Differences

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

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

| Cores | 10 | 14 |

| Threads | 20 | 14 |

| Base Clock | 3.50 GHz | 4.20 GHz |

| Boost Clock | 5.70 GHz | 5.20 GHz |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Codename | Bartlett Lake | Arrow Lake-S |

| 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 |

| ECC Memory | Yes | No |

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

| Integrated Graphics | UHD Graphics 770 | N/A |

| Socket | Intel Socket 1700 | Intel Socket 1851 |

| Multiplier Unlocked | No | Yes |

| Transistors | Not listed | 17,800 million |

| Die Size | Not listed | 243 mm² |

| Launch MSRP | $409 | $294 |

Where Each One Wins

Intel Core 7 253PQE wins for: Integer math workloads, showing a 39.4% advantage over the 245KF—a category that often reflects database, financial, and logic-heavy applications. Data compression also favors the 253PQE by 5.9%, making it the better choice for archiving, file compression, and storage-related tasks. ECC memory support makes it suitable for error-sensitive computing environments. DDR4 compatibility provides flexibility for users with existing memory infrastructure. Integrated UHD Graphics 770 offers a display output without a discrete GPU, which is absent on the 245KF. The higher boost clock of 5.70 GHz benefits lightly threaded tasks that scale with frequency.

Intel Core Ultra 5 245KF wins for: Rendering and multi-core productivity, evidenced by 14.3% leads across all Cinebench R15, R20, and R23 multi-core tests. Single-core performance is also superior, with 14.3% leads in Cinebench single-core and 6.9% in PassMark single-thread tests. Data encryption shows a 23.6% advantage, making it better for security and cryptography workloads. Floating-point math, critical for scientific computing and 3D simulation, favors the 245KF by 20%. Prime number finding shows an extreme 50.5% lead, indicating superior integer-based algorithmic performance in that specific test. The unlocked multiplier allows overclocking for additional performance. Higher memory bandwidth (102.4 GB/s versus 89.6 GB/s) benefits memory-intensive applications. More PCIe Gen 5 lanes (20 versus 16) support additional high-speed peripherals. The 14-core count without Hyper-Threading suggests efficiency in workloads that prefer physical cores over logical threads.