Intel Core 7 251TE vs Intel Core Ultra 5 225 Comparison

Where Each One Wins

The benchmark data splits these two processors into distinct use-case profiles. The Intel Core 7 251TE wins 5 of the 17 recorded head-to-head tests, while the Intel Core Ultra 5 225 wins 12. The Core 7 251TE dominates in integer-heavy and data-compression workloads, showing a 92.4% advantage in PassMark integer math and a 10.4% edge in data compression. It also leads in Cinebench R20 multicore and singlecore, both by 69.7%, and in random string sorting by 8.3%.

The Core Ultra 5 225 takes the rest. Its wins span single-threaded performance, extended instruction workloads, prime number finding, floating-point math, physics simulation, encryption, and the newer Cinebench R23 tests. The single-thread PassMark score of 4412 versus 3568, a 19.1% gap, indicates the Ultra 5 has a substantial per-core advantage. The extended instructions score of 27162 versus 16974, a 37.5% lead, points to superior SIMD and vector processing capability.

For workloads that rely on many threads with modest per-core demands, the Core 7 251TE's 24 cores and 32 threads provide a clear edge. For tasks that favor fewer but faster cores, or that use advanced instruction sets, the Core Ultra 5 225 is the better pick. The Cinebench results are inconsistent between versions: R20 heavily favors the Core 7, while R23 slightly favors the Ultra 5, suggesting the R23 test better reflects the Ultra 5's architectural strengths.

Architecture Differences

The two CPUs come from different Intel design lineages. The Core 7 251TE is a Bartlett Lake part, built on Intel's 10 nm process with a 215 mm² die. It uses the Intel Socket 1700 platform. The Core Ultra 5 225 belongs to the Core Ultra Series 2, codenamed Arrow Lake-S, fabricated by TSMC on a 3 nm process with a 243 mm² die and 17,800 million transistors. It uses Intel Socket 1851.

Core counts differ dramatically. The Core 7 251TE has 24 cores and 32 threads, while the Core Ultra 5 225 has 10 cores and 10 threads, meaning the Ultra 5 lacks hyper-threading. Cache hierarchies also diverge: the Core 7 has 80 KB L1 per core, 1.25 MB L2 per core, and 36 MB shared L3. The Ultra 5 has 192 KB L1 per core, 3 MB L2 per core, and 20 MB shared L3. The Ultra 5's larger per-core caches align with its higher single-thread scores.

Memory support differs. The Core 7 251TE supports both DDR4 and DDR5 with dual-channel memory and 89.6 GB/s bandwidth. The Ultra 5 supports only DDR5, also dual-channel, but with higher bandwidth at 102.4 GB/s. ECC memory is available on the Core 7 but not on the Ultra 5. PCIe lanes also differ: the Core 7 provides Gen 5 with 16 CPU lanes, while the Ultra 5 provides Gen 5 with 20 CPU lanes.

Integrated graphics differ as well. The Core 7 uses UHD Graphics 770, while the Ultra 5 uses Arc Xe-LPG Graphics with 16 execution units. Both are desktop parts with active production status. The Core 7 launched on 2025-01-12 with a launch MSRP of $384. The Ultra 5 launched on 2025-01-06 with a launch MSRP of $246. Neither has an unlocked multiplier.

Head-to-Head Benchmarks

The most striking result is Cinebench R20 multicore, where the Core 7 251TE scores 10717 against 6317 for the Ultra 5, a 69.7% lead. The same margin appears in R20 singlecore, 1512 versus 891. These are the largest deltas in either direction. In Cinebench R15 multicore, the Ultra 5 edges ahead by 1.4% with 2609 versus 2572. R23 multicore also goes to the Ultra 5, 25891 versus 25518, a 1.4% margin. R23 singlecore favors the Ultra 5 by 1.5%, 3655 versus 3602.

PassMark integer math is the Core 7's biggest win: 125739 versus 65345, a 92.4% advantage. Data compression favors the Core 7 by 10.4%, 334399 versus 302811. Random string sorting goes to the Core 7 by 8.3%, 39643 versus 36590.

The Ultra 5 counters in PassMark single-thread with 4412 versus 3568, a 19.1% lead. Extended instructions show a 37.5% gap, 27162 versus 16974. Prime number finding favors the Ultra 5 heavily, 358 versus 140, a 60.9% difference. Floating-point math goes to the Ultra 5 by 7%, 92038 versus 85607. Physics simulation favors the Ultra 5 by 17.3%, 2342 versus 1938. Data encryption is essentially tied, with the Ultra 5 ahead by 0.5%, 22285 versus 22176. PassMark multithread shows the Ultra 5 ahead by 1.4%, 30459 versus 30022.

The overall pattern is clear: the Core 7 wins where raw core count and integer throughput matter, while the Ultra 5 wins where per-core efficiency, instruction-level parallelism, and floating-point capability matter. The average benchmark score for the Core 7 is 41650, placing it in the 88th percentile of all CPUs. The Ultra 5 averages 36938, placing it in the 85th percentile. Despite the Core 7's higher average, the Ultra 5 wins more individual tests.

Specification Differences

| Specification | Intel Core 7 251TE | Intel Core Ultra 5 225 |

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

| Cores | 24 | 10 |

| Threads | 32 | 10 |

| Base clock | 1.40 GHz | 3.30 GHz |

| Boost clock | 5.40 GHz | 4.90 GHz |

| TDP | 45 W | 65 W |

| Socket | Intel Socket 1700 | Intel Socket 1851 |

| Process node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Die size | 215 mm² | 243 mm² |

| Transistors | Not recorded | 17,800 million |

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

| L2 cache | 1.25 MB (per core) | 3 MB (per core) |

| L3 cache | 36 MB (shared) | 20 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 | Arc Xe-LPG Graphics 16EU |

| Launch MSRP | $384 | $246 |

The base clock difference is notable: the Ultra 5 starts at 3.30 GHz versus 1.40 GHz for the Core 7, but the Core 7 boosts higher to 5.40 GHz versus 4.90 GHz. The Core 7 has a lower TDP of 45 W despite more cores, while the Ultra 5 draws 65 W. The Ultra 5 uses a smaller process node and a larger die, with more transistors. The Core 7 offers ECC support and DDR4 compatibility, which the Ultra 5 lacks. The Ultra 5 provides more PCIe lanes and higher memory bandwidth.

FAQ

Q: Which CPU has more cores and threads?

A: The Intel Core 7 251TE has 24 cores and 32 threads. The Intel Core Ultra 5 225 has 10 cores and 10 threads.

Q: Why does the Core Ultra 5 225 win more benchmarks despite fewer cores?

A: The Ultra 5 has a higher base clock of 3.30 GHz versus 1.40 GHz, larger per-core caches (192 KB L1 and 3 MB L2 versus 80 KB and 1.25 MB), and a smaller 3 nm process node. Its PassMark single-thread score of 4412 versus 3568 confirms superior per-core performance.

Q: Which processor supports ECC memory?

A: Only the Intel Core 7 251TE supports ECC memory. The Intel Core Ultra 5 225 does not.

Q: What memory types does each support?

A: The Core 7 251TE supports both DDR4 and DDR5. The Core Ultra 5 225 supports DDR5 only.

Q: Which CPU has higher memory bandwidth?

A: The Intel Core Ultra 5 225 has higher memory bandwidth at 102.4 GB/s, compared to 89.6 GB/s for the Core 7 251TE. Both use dual-channel memory buses.

Q: How do their Cinebench R23 scores compare?

A: The Core Ultra 5 225 edges out the Core 7 251TE in R23 multicore, 25891 versus 25518, and in R23 singlecore, 3655 versus 3602. The margins are small, at 1.4% and 1.5% respectively.

The Verdict

The data presents a clear trade-off. The Intel Core 7 251TE is the choice for workloads that scale with core count and integer throughput. Its 92.4% lead in integer math and 69.7% lead in Cinebench R20 multicore show that heavily parallel integer tasks run substantially faster. The 45 W TDP also makes it a lower-power option despite having more cores. Its ECC memory support and DDR4 compatibility broaden its platform flexibility.

The Intel Core Ultra 5 225 is the choice for single-threaded and instruction-heavy workloads. Its 19.1% lead in PassMark single-thread, 37.5% lead in extended instructions, and 60.9% lead in prime number finding show that per-core efficiency is its strength. The higher base clock of 3.30 GHz, larger per-core caches, and 102.4 GB/s memory bandwidth support this profile. The 3 nm process node and 17,800 million transistors indicate a more modern design.

For a system that runs many parallel integer tasks, data compression, or sorting workloads, the Core 7 251TE delivers measurably better results. For a system that runs single-threaded applications, floating-point calculations, or instruction-heavy code, the Core Ultra 5 225 wins most tests. The average benchmark scores place the Core 7 in the 88th percentile versus the 85th for the Ultra 5, but the per-test breakdown shows the Ultra 5 takes 12 of 17 head-to-head matchups. The choice depends entirely on which workload profile matches the user's primary applications.