Intel Core i5-1345UE vs Intel Xeon W-2125 Comparison

Head-to-Head Benchmarks

The recorded benchmark data presents a remarkably consistent picture: the Intel Core i5-1345UE wins every single head-to-head test in the database, across both multi-core and single-core workloads. The Intel Xeon W-2125, despite its workstation pedigree, trails in each of the six comparisons, with the Core i5 holding a uniform advantage of roughly 9 percent in most tests.

Starting with multi-core performance, the Core i5-1345UE scores 940 in Cinebench R15 multi-core against 852 for the Xeon W-2125, a lead of 9.4 percent. The gap widens slightly in absolute terms in Cinebench R20, where the Core i5 posts 3918 versus 3551, again a 9.4 percent difference. In Cinebench R23 multi-core, the Core i5 reaches 9329 while the Xeon W-2125 manages 8455, maintaining the same 9.4 percent margin. These results indicate that the Core i5's additional cores and threads translate into a consistent, if not overwhelming, throughput advantage across rendering workloads.

Single-core performance tells a similar story. The Core i5-1345UE scores 132 in Cinebench R15 single-core, 553 in Cinebench R20 single-core, and 1317 in Cinebench R23 single-core. The Xeon W-2125 trails with 120, 501, and 1193 respectively. The deltas are nearly identical: 9.1 percent in R15 single-core and 9.4 percent in both R20 and R23 single-core. This consistency suggests that the Core i5's newer architecture delivers a modest but reliable per-clock advantage, not just a raw core count benefit.

The Geekbench results, while not part of the head-to-head table, reinforce the pattern from the broader database. The Xeon W-2125 scores 4988 in Geekbench multi-core and 1323 in single-core. The Core i5-1345UE does not have Geekbench scores listed, but its average benchmark score across all recorded tests is 2698, slightly above the Xeon's 2623. This places the Core i5 in the 50th percentile of all CPUs in the database, versus the 49th percentile for the Xeon W-2125. The difference is small, a single percentile point, but it indicates that the Core i5 sits marginally higher in the overall performance distribution.

Looking at the nearest rivals for each chip provides additional context. The Xeon W-2125's average score of 2623 places it within 0.7 percent of the Intel Core i7-8850H (2604), and it trails the Intel Core i7-1195G7 (2638), Intel Core i9-8950HK (2641), and Intel Core i7-5820K (2642) by less than one percent in each case. This tight clustering suggests the Xeon W-2125 is squarely in the middle of a competitive pack of older high-end CPUs. The Core i5-1345UE, with an average score of 2698, sits within 0.4 percent of the Intel Xeon E-2226G (2709) and within 0.2 percent of the Intel Core i7-8700T (2701) and Intel Core i7-1185G7E (2703). It also trails the Intel Xeon E5-2640 v3 (2703) by the same tiny margin. In other words, the Core i5 punches slightly above its weight class, landing among CPUs that are typically considered more powerful.

The benchmark results show no scenario where the Xeon W-2125 takes a win. In every recorded test, the Core i5-1345UE is ahead, and the margin is remarkably stable at around 9 percent. This is not a case of one chip excelling in a niche workload; it is a broad, consistent advantage across all Cinebench versions and both single- and multi-threaded tests.

The Verdict

From the data alone, the choice is straightforward for most users: the Intel Core i5-1345UE is the faster processor in every measured workload. It wins all six head-to-head benchmarks, holds a higher average benchmark score (2698 versus 2623), and occupies a higher percentile rank (50th versus 49th). If raw performance is the sole criterion, the Core i5-1345UE is the superior pick.

The Xeon W-2125 does retain some appeal, but not from the benchmark scores. Its strength lies in its platform features rather than its compute results. The Xeon supports ECC memory, offers a quad-channel memory bus with a peak bandwidth of 85.3 GB/s, and provides 48 PCIe Gen 3 lanes from the CPU. The Core i5-1345UE has no ECC support, a dual-channel memory bus, and only 8 PCIe Gen 4 lanes. For a user building a workstation that requires large memory capacities, error-correcting memory, or many expansion cards, the Xeon W-2125's platform may justify its selection despite the performance deficit.

However, the performance data is unambiguous. The Core i5-1345UE is faster by 9.4 percent in multi-core and 9.1 to 9.4 percent in single-core across the Cinebench suite. Its launch MSRP of $444 for the Xeon W-2125 (the Core i5 has no listed launch MSRP) does not change the performance picture. The Xeon is an end-of-life product from 2017, while the Core i5 is an active mobile part from 2023. The architecture gap is significant, and the benchmarks reflect it.

For users who prioritize compute performance above all else, the Core i5-1345UE is the clear winner. For users who need workstation-specific features like ECC memory, quad-channel bandwidth, or extensive PCIe lanes, the Xeon W-2125 remains a viable option, but those users must accept a consistent 9 percent performance disadvantage in the recorded tests.

Architecture Differences

The two processors come from different eras and different design philosophies. The Intel Xeon W-2125 is built on the Skylake architecture, specifically Skylake-W, using a 14 nm process node from Intel. It has 4 cores and 8 threads, with a base clock of 4.00 GHz and a boost clock of 4.50 GHz. Its thermal design power is 120 watts, reflecting a desktop workstation part with a substantial power envelope. The die size is 484 mm², a large chip by any measure. The cache hierarchy consists of 64 KB of L1 per core, 1 MB of L2 per core, and 8.25 MB of shared L3 cache. It supports DDR4 memory across a quad-channel bus with a theoretical bandwidth of 85.3 GB/s. The memory controller includes ECC support, a hallmark of workstation and server platforms. The PCIe implementation is Gen 3 with 48 lanes from the CPU, allowing for extensive expansion. The Xeon W-2125 uses the Intel Socket 2066 platform, and its market segment is explicitly Server/Workstation. It was released in 2017 and is now end-of-life.

The Intel Core i5-1345UE is a much newer design based on the Raptor Lake architecture, specifically Raptor Lake-U, using a 10 nm process node. It has 10 cores and 12 threads, a hybrid configuration typical of modern Intel mobile parts, though the database does not break down performance and efficiency core counts. Its base clock is listed at 1400.00 MHz (1.40 GHz) with a boost clock of 4.60 GHz. The thermal design power is just 15 watts, a fraction of the Xeon's 120-watt envelope, reflecting its mobile BGA 1744 socket design. The cache configuration includes 80 KB of L1 per core, 1.25 MB of L2 per core, and a larger 12 MB of shared L3 cache. The memory support is broader, covering both DDR4 and DDR5, but the memory bus is dual-channel, and no memory bandwidth figure is recorded. ECC memory is not supported. The PCIe implementation is Gen 4 with 8 lanes from the CPU. The integrated graphics are Iris Xe Graphics with 80 execution units, a feature the Xeon W-2125 lacks entirely. The Core i5-1345UE is an active product released in 2023, targeting the mobile market segment.

The architectural differences explain much of the benchmark gap. The Raptor Lake design benefits from over five years of microarchitectural improvements over Skylake, including better branch prediction, wider execution units, and improved memory latency characteristics. The larger L3 cache (12 MB versus 8.25 MB) also helps with data-heavy workloads. The process node shrink from 14 nm to 10 nm allows for higher transistor density and better power efficiency, which is why the Core i5 can deliver higher performance at 15 watts versus 120 watts. The clock speeds are similar in boost (4.60 GHz versus 4.50 GHz), but the Core i5's newer architecture extracts more instructions per clock, resulting in the consistent 9 percent advantage.

The platform differences are equally stark. The Xeon W-2125 offers ECC memory, quad-channel bandwidth, and 48 PCIe lanes, all features designed for server and workstation workloads that demand reliability and expansion capacity. The Core i5-1345UE offers none of these, but it compensates with integrated graphics, DDR5 support, and PCIe Gen 4 connectivity, which provides higher per-lane bandwidth even with fewer lanes. The Xeon's 85.3 GB/s memory bandwidth is a significant advantage for memory-bound tasks, but the benchmark data does not include any memory bandwidth tests, so its impact is not reflected in the recorded scores.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The Intel Core i5-1345UE wins all three multi-core Cinebench tests. It scores 940 in R15, 3918 in R20, and 9329 in R23, against the Xeon W-2125's 852, 3551, and 8455, respectively. The margin is 9.4 percent in each case.

Q: Does the Xeon W-2125 win in any benchmark?

A: No. The head-to-head data shows the Core i5-1345UE winning all six recorded tests, with zero wins for the Xeon W-2125.

Q: Why is the Xeon W-2125 still relevant if it loses every benchmark?

A: The Xeon W-2125 offers platform features that the Core i5-1345UE does not: ECC memory support, a quad-channel memory bus with 85.3 GB/s bandwidth, and 48 PCIe Gen 3 lanes. These are important for specific workstation and server use cases, even if they do not show up in Cinebench scores.

Q: What are the core and thread counts for each chip?

A: The Xeon W-2125 has 4 cores and 8 threads. The Core i5-1345UE has 10 cores and 12 threads.

Q: Which processor has integrated graphics?

A: Only the Intel Core i5-1345UE has integrated graphics, specifically Iris Xe Graphics with 80 execution units. The Xeon W-2125 has no integrated graphics, requiring a discrete GPU.

Q: How do their overall average benchmark scores compare?

A: The Core i5-1345UE has an average benchmark score of 2698, placing it in the 50th percentile of all CPUs. The Xeon W-2125 has an average score of 2623, placing it in the 49th percentile.

Where Each One Wins

The benchmark data is clear: the Core i5-1345UE wins everywhere that performance is measured. It takes all six head-to-head tests, including both single-core and multi-core variants of Cinebench R15, R20, and R23. Its 9.4 percent multi-core advantage makes it the better choice for rendering, video encoding, compilation, and any other workload that scales with threads. Its single-core advantage, ranging from 9.1 to 9.4 percent, makes it better for everyday responsiveness, lightly threaded applications, and tasks that rely on high single-thread performance like many legacy games or spreadsheet calculations. The Core i5 also benefits from a larger L3 cache (12 MB versus 8.25 MB), a newer 10 nm process, and integrated graphics, which could offload light display tasks without a dedicated GPU.

The Xeon W-2125 does not win any benchmark, but it wins on platform capability. Its quad-channel memory bus with 85.3 GB/s bandwidth is a major asset for memory-intensive workloads such as large in-memory databases, scientific computing, or virtual machine hosts, where memory throughput matters more than raw CPU cores. Its ECC memory support provides data integrity protection that is critical for long-running server processes or financial calculations. Its 48 PCIe Gen 3 lanes allow for multiple GPUs, NVMe drives, or network cards, enabling a high-expansion workstation that the Core i5's 8 PCIe Gen 4 lanes cannot match. For a user building a dedicated server or a specialized workstation with many expansion cards, the Xeon W-2125's platform may be the deciding factor, even though it loses every recorded performance test.

In summary, the Core i5-1345UE is the performance winner across the board, while the Xeon W-2125 retains a niche for users who require ECC memory, quad-channel bandwidth, or massive PCIe expansion. The benchmark database records no scenario where the Xeon outperforms the Core i5 in compute tasks.