Intel Core Ultra 5 125U vs Intel Xeon 6325P Comparison

The Intel Core Ultra 5 125U and the Intel Xeon 6325P are a study in contrasts despite their nearly identical average benchmark scores. The Ultra 5 125U, a mobile Meteor Lake part, and the Xeon 6325P, a server/workstation Raptor Lake chip, land within 0.0% of each other in average score (20826 vs 20821). Yet the data reveals that these two processors are optimized for entirely different workloads, with the mobile chip winning 11 of 17 head-to-head tests while the Xeon takes the remaining 6. The choice between them is not about overall speed but about matching the silicon to the specific task.

Where Each One Wins

The Intel Core Ultra 5 125U establishes a clear dominance in multi-threaded throughput and memory-intensive operations. Its wins in PassMark integer math (57046 vs 49151, a 16.1% lead) and floating-point math (41331 vs 37265, a 10.9% lead) indicate a substantial advantage in general-purpose computing and scientific calculations. The 31.4% advantage in data encryption (12231 vs 9311) is particularly striking, suggesting the Ultra 5's architecture handles cryptographic workloads with far greater efficiency. The mobile chip also leads in data compression by 11.7% (198858 vs 178020) and random string sorting by 14.4% (21872 vs 19113), pointing to superior memory subsystem performance despite the Xeon's higher clock speeds.

The Xeon 6325P fights back decisively in single-threaded and lightly-threaded scenarios. Its PassMark single-thread score of 4213 is 21.8% higher than the Ultra 5's 3296, a massive gap that reflects the Xeon's 5.20 GHz boost clock versus 4.30 GHz on the mobile part. This advantage carries into newer Cinebench versions, where the Xeon wins R23 multi-core by 28.6% (13717 vs 9799) and R23 single-core by 19.4% (1936 vs 1561). The older R15 and R20 tests, however, favor the Ultra 5, suggesting that the Xeon's architectural improvements in Raptor Lake are better captured by the newer benchmark generation.

Architecture Differences

The two processors come from different Intel design philosophies. The Ultra 5 125U is built on Meteor Lake using a 7 nm process, while the Xeon 6325P uses Raptor Lake on a 10 nm node. This process advantage helps the Ultra 5 pack 12 cores and 14 threads into a 15 W TDP, whereas the Xeon manages only 4 cores and 8 threads within a 55 W TDP. The Xeon compensates with much higher clocks: 3.50 GHz base and 5.20 GHz boost versus 1300.00 MHz base and 4.30 GHz boost on the Ultra 5.

Cache layouts differ notably. The Ultra 5 allocates 112 KB L1 and 2 MB L2 per core, while the Xeon uses 80 KB L1 and 1.25 MB L2 per core. Both share 12 MB of L3, making their total cache capacity comparable. The Xeon's die size is listed at 163 mm², while no die size is provided for the Ultra 5. Memory support diverges: the Ultra 5 supports DDR5 with a dual-channel bus and 89.6 GB/s bandwidth but no ECC, while the Xeon supports both DDR4 and DDR5 with dual-channel memory but lacks a stated bandwidth figure. The Xeon does support ECC memory, which is critical for server and workstation reliability.

Connectivity and integrated features also separate them. The Ultra 5 includes Arc Xe-LPG 64EU integrated graphics and PCIe Gen 4 with 12 lanes, while the Xeon has no integrated graphics and offers PCIe Gen 5 with 16 lanes. The Xeon uses Intel Socket 1700, while the Ultra 5 is soldered to Intel BGA 2049, meaning the Xeon is a socketed desktop/server part and the Ultra 5 is a mobile-only chip. The Xeon launched in February 2025 with a launch MSRP of $281, and the Ultra 5 launched in December 2023 with a launch MSRP of $363.

FAQ

Q: Which processor has better multi-core performance in the latest Cinebench?

A: The Xeon 6325P wins Cinebench R23 multi-core by a substantial 28.6% (13717 vs 9799). However, the Ultra 5 125U wins the older Cinebench R15 multi-core test by 18.7% (1640 vs 1382) and R20 multi-core by 3.8% (5982 vs 5761).

Q: Can the Xeon 6325P be used in a standard desktop motherboard?

A: Yes, the Xeon uses Intel Socket 1700, which is a standard desktop socket. It supports both DDR4 and DDR5 memory. The Ultra 5 125U, in contrast, uses Intel BGA 2049, which is a soldered mobile socket.

Q: Which CPU is better for single-threaded workloads?

A: The Xeon 6325P wins PassMark single-thread by 21.8% (4213 vs 3296) and Cinebench R23 single-core by 19.4% (1936 vs 1561). The Ultra 5 125U wins R15 single-core by 16.4% (227 vs 195) and R20 single-core by 3.8% (844 vs 813).

Q: Does either processor support ECC memory?

A: Only the Xeon 6325P supports ECC memory. The Ultra 5 125U does not support ECC and is limited to DDR5 memory, while the Xeon supports both DDR4 and DDR5.

Q: Which CPU has integrated graphics?

A: The Ultra 5 125U includes Arc Xe-LPG 64EU integrated graphics. The Xeon 6325P has no integrated graphics, so a discrete GPU is required for display output.

Q: What is the power consumption difference?

A: The Ultra 5 125U has a TDP of 15 W, while the Xeon 6325P has a TDP of 55 W. This makes the Ultra 5 far more suitable for battery-powered or thermally constrained mobile systems.

Specification Differences

The two processors differ across nearly every core specification. The Ultra 5 125U offers 12 cores and 14 threads, while the Xeon 6325P has 4 cores and 8 threads. Base clocks are vastly different: 1300.00 MHz on the Ultra 5 versus 3.50 GHz on the Xeon. Boost clocks also favor the Xeon at 5.20 GHz versus 4.30 GHz. TDP is 15 W for the Ultra 5 and 55 W for the Xeon.

Process node and architecture are distinct, with the Ultra 5 on 7 nm Meteor Lake and the Xeon on 10 nm Raptor Lake. The Xeon has a die size of 163 mm²; the Ultra 5's die size is not listed. Per-core cache differs: the Ultra 5 has 112 KB L1 and 2 MB L2 per core, while the Xeon has 80 KB L1 and 1.25 MB L2 per core. Both share 12 MB L3.

Memory support is a key differentiator. The Ultra 5 supports DDR5 only, with dual-channel memory and 89.6 GB/s bandwidth, while the Xeon supports DDR4 and DDR5 with dual-channel memory but no listed bandwidth. ECC memory is supported only on the Xeon. PCIe capabilities favor the Xeon with Gen 5 and 16 lanes versus Gen 4 and 12 lanes on the Ultra 5. Integrated graphics are present only on the Ultra 5 (Arc Xe-LPG 64EU). The Ultra 5 has a launch MSRP of $363, while the Xeon has a launch MSRP of $281.

Head-to-Head Benchmarks

The benchmark results show a clear split between generations of testing. In Cinebench R15, the Ultra 5 125U wins both tests decisively: 1640 versus 1382 in multi-core (18.7% ahead) and 227 versus 195 in single-core (16.4% ahead). The R20 results narrow significantly, with the Ultra 5 leading by just 3.8% in both multi-core (5982 vs 5761) and single-core (844 vs 813).

The tables turn completely in Cinebench R23. The Xeon 6325P wins multi-core by 28.6% (13717 vs 9799) and single-core by 19.4% (1936 vs 1561). This dramatic reversal suggests the Xeon's Raptor Lake cores are significantly more efficient per clock in the newer benchmark, overcoming its core count disadvantage.

PassMark results heavily favor the Ultra 5 125U. The mobile chip wins data compression by 11.7% (198858 vs 178020), data encryption by 31.4% (12231 vs 9311), floating-point math by 10.9% (41331 vs 37265), integer math by 16.1% (57046 vs 49151), multithread by 7.9% (17417 vs 16138), physics by 6.1% (1082 vs 1020), and random string sorting by 14.4% (21872 vs 19113). The Xeon only wins PassMark extended instructions by 2.6% (11645 vs 11340), find prime numbers by 3% (66 vs 64), and single-thread by 21.8% (4213 vs 3296).

The Verdict

The benchmark data points to two distinct use cases. The Intel Core Ultra 5 125U is the better choice for multi-threaded, memory-heavy workloads that benefit from its 12-core configuration and higher memory bandwidth. Its wins in integer math, floating-point math, encryption, and compression make it suitable for general productivity, data processing, and development tasks. The 15 W TDP also makes it viable for thin-and-light laptops where power efficiency is paramount.

The Intel Xeon 6325P is the pick for single-threaded performance and modern multi-core scaling. Its 21.8% lead in PassMark single-thread and 28.6% lead in Cinebench R23 multi-core demonstrate that its 4 high-clocked Raptor Lake cores can outperform the Ultra 5's 12 mixed cores in current-generation rendering workloads. The Xeon's ECC memory support, PCIe Gen 5 connectivity, and socketed design make it suitable for workstation builds or compact servers where reliability and upgradeability matter more than raw core count.

Both processors sit at the 74th percentile of all CPUs, and their average benchmark scores are within 0.0% of each other (20826 vs 20821). The decision comes down to workload: choose the Ultra 5 125U for parallel, memory-intensive tasks in a mobile form factor, or choose the Xeon 6325P for high-clock single-threaded performance and server-grade features in a desktop socket.