Intel Core i5-1345UE vs Intel Xeon E5-2628L v3 Comparison

Head-to-Head Benchmarks

The benchmark data presents a strikingly consistent picture: the Intel Xeon E5-2628L v3 wins every single one of the six head-to-head comparisons, yet the margins are remarkably narrow. In Cinebench R15 multi-core, the Xeon scores 949 against the Core i5-1345UE's 940, a 1% advantage. The single-core R15 result shows 133 versus 132, a 0.8% edge. This pattern repeats across every test: R20 multi-core sees 3955 versus 3918 (0.9% delta), R20 single-core 558 versus 553 (0.9% delta), R23 multi-core 9417 versus 9329 (0.9% delta), and R23 single-core 1329 versus 1317 (0.9% delta).

What is striking is not that the older Xeon wins — it is how small the winning margins are. A 10-core, 20-thread Haswell-EP server processor from 2014 is barely edging out a mobile Raptor Lake chip from 2023. The largest delta across all six tests is just 1%. This suggests that raw computational throughput in these Cinebench workloads has not advanced dramatically between these two very different designs, despite the nearly nine-year gap in release dates (2014-09-07 for the Xeon versus 2023-01-03 for the Core i5).

The average benchmark scores reinforce this near-parity. The Xeon E5-2628L v3 posts an average of 2724 across all benchmarks, while the Core i5-1345UE averages 2698. The Xeon's nearest rivals include the AMD Ryzen 7 4700U at 2722 (0.1% delta) and the Intel Core i7-11390H at 2715 (0.3% delta). The Core i5's nearest rivals include the Intel Core i7-8700T at 2701 (-0.1% delta) and the Intel Xeon E5-2640 v3 at 2703 (-0.2% delta). Both CPUs sit at the 50th percentile among all CPUs tested, placing them squarely in the mid-range of the database.

The data implies that for pure Cinebench performance, the choice between these two comes down to decimal points, not meaningful differences. The Xeon's 6-0 sweep is technically a clean victory, but the closest possible one. A 0.8% single-core lead in R15 and a 0.9% lead in R23 single-core are within run-to-run variance territory for most testing scenarios.

Architecture Differences

The architectural gulf between these two processors is vast, even if the benchmark scores are not. The Xeon E5-2628L v3 is built on Intel's 22 nm Haswell-EP process, packing 2,600 million transistors into a 356 mm² die. It features 10 cores and 20 threads with a base clock of 2000 MHz and a boost clock of 2500 MHz. The Core i5-1345UE, by contrast, uses Intel's 10 nm Raptor Lake-U process, has 10 cores but only 12 threads, and runs at a 1400 MHz base clock with a 4600 MHz boost clock. The Core i5's transistor count and die size are not listed in the data, but the process node difference alone tells a story of generational efficiency gains.

Cache hierarchies diverge significantly. The Xeon allocates 64 KB of L1 per core, 256 KB of L2 per core, and a substantial 25 MB of shared L3 cache. The Core i5 provides 80 KB of L1 per core, 1.25 MB of L2 per core, but only 12 MB of shared L3. The Xeon's 25 MB L3 is more than double the Core i5's 12 MB, which likely helps the server chip in cache-sensitive workloads despite its older architecture.

Memory architecture differs fundamentally. The Xeon supports DDR4 memory over a quad-channel bus with a peak bandwidth of 59.7 GB/s, plus ECC memory support. The Core i5 supports both DDR4 and DDR5 over a dual-channel bus, but no memory bandwidth figure is listed, and it lacks ECC support. PCIe connectivity also differs: the Xeon provides Gen 3 with 40 lanes (CPU only), while the Core i5 provides Gen 4 with 8 lanes (CPU only). The Core i5 compensates with integrated Iris Xe Graphics with 80 execution units; the Xeon has no integrated graphics at all.

Threading is another major differentiator. The Xeon offers 20 threads versus the Core i5's 12, meaning the Xeon can handle 8 more concurrent threads. However, the Core i5's much higher boost clock (4600 MHz versus 2500 MHz) gives it a massive frequency advantage in lightly-threaded scenarios. The Xeon's TDP is 75 W; the Core i5's is 15 W — a fivefold difference that reflects their intended deployment environments.

Where Each One Wins

The data points to a nuanced use-case split despite the Xeon's benchmark sweep. The Xeon E5-2628L v3 wins all six Cinebench tests, but the margins are so thin that the real-world implications depend heavily on workload characteristics.

In multi-threaded rendering workloads, the Xeon's 20 threads versus 12 give it a structural advantage. The R23 multi-core score of 9417 versus 9329 shows it can sustain slightly higher throughput when all cores are engaged. The 25 MB L3 cache likely helps in workloads with large working sets that benefit from on-die data locality. The quad-channel memory bus with 59.7 GB/s bandwidth is another factor: memory-hungry server workloads that stream data will see better performance on the Xeon. ECC memory support makes it suitable for error-sensitive compute tasks.

The Core i5-1345UE wins in scenarios not captured by Cinebench. Its 4600 MHz boost clock versus 2500 MHz suggests it will dominate in bursty, single-threaded tasks that cannot use many cores. Its 15 W TDP versus 75 W makes it deployable in fanless or battery-powered mobile devices. The integrated Iris Xe Graphics with 80 EU eliminates the need for a discrete GPU in light graphics workloads. PCIe Gen 4 support, even with fewer lanes, offers faster per-lane throughput for modern NVMe storage.

The production status tells a clear story: the Xeon is end-of-life, while the Core i5 is active. For new system designs, the Core i5 is the only one with forward-looking support. The Xeon's release date of 2014-09-07 means it has been on the market for over eight years, and its socket (Intel Socket 2011-3) is a legacy platform. The Core i5's BGA 1744 socket is current, though soldered and not upgradeable.

The Verdict

The benchmark data shows a statistical tie with a technical edge to the Xeon E5-2628L v3. Six wins out of six tests, but the largest margin is 1%. The average benchmark score of 2724 for the Xeon versus 2698 for the Core i5 — a 26-point difference — is within the noise of most benchmarking environments. Both sit at the 50th percentile of all CPUs, and their nearest rivals cluster within a few points of each other.

For a server or workstation workload where ECC memory, quad-channel bandwidth, 20 threads, and a 25 MB L3 cache matter, the Xeon E5-2628L v3 is the data-backed choice. Its 59.7 GB/s memory bandwidth and 40 PCIe Gen 3 lanes provide platform capabilities the Core i5 cannot match. The 75 W TDP is acceptable in a chassis designed for it.

For mobile or embedded deployments where power efficiency, integrated graphics, and high single-core boost clocks matter, the Core i5-1345UE is the only viable option. The 15 W TDP is 20% of the Xeon's, enabling fanless designs. The 4600 MHz boost clock provides snappy responsiveness in interactive workloads. The integrated Iris Xe Graphics covers display output without additional hardware.

The data does not support choosing the Core i5 for raw compute performance — the Xeon wins every benchmark. But the data also does not support choosing the Xeon for any workload that prioritizes power efficiency, integrated graphics, or modern platform features. The verdict depends entirely on deployment context, not on benchmark bragging rights.

FAQ

Q: Which processor wins all the Cinebench comparisons?

A: The Intel Xeon E5-2628L v3 wins all six head-to-head Cinebench tests, with margins ranging from 0.8% to 1%.

Q: What is the difference in thread count between the two?

A: The Xeon E5-2628L v3 has 20 threads, while the Core i5-1345UE has 12 threads — a difference of 8 threads.

Q: Does the Core i5-1345UE have integrated graphics?

A: Yes, it includes Iris Xe Graphics with 80 execution units. The Xeon E5-2628L v3 has no integrated graphics.

Q: What is the TDP difference?

A: The Xeon E5-2628L v3 has a 75 W TDP, while the Core i5-1345UE has a 15 W TDP — a fivefold difference.

Q: Which processor supports ECC memory?

A: The Xeon E5-2628L v3 supports ECC memory. The Core i5-1345UE does not.

Q: What is the single-core R23 score for each?

A: The Xeon E5-2628L v3 scores 1329, and the Core i5-1345UE scores 1317, a 0.9% difference.

Specification Differences

| Specification | Intel Xeon E5-2628L v3 | Intel Core i5-1345UE |

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

| Cores | 10 | 10 |

| Threads | 20 | 12 |

| Base Clock | 2000 MHz | 1400 MHz |

| Boost Clock | 2500 MHz | 4600 MHz |

| TDP | 75 W | 15 W |

| Socket | Intel Socket 2011-3 | Intel BGA 1744 |

| Architecture | Haswell | Raptor Lake |

| Codename | Haswell-EP | Raptor Lake-U |

| Process Node | 22 nm | 10 nm |

| L1 Cache | 64 KB (per core) | 80 KB (per core) |

| L2 Cache | 256 KB (per core) | 1.25 MB (per core) |

| L3 Cache | 25 MB (shared) | 12 MB (shared) |

| Memory Support | DDR4 | DDR4, DDR5 |

| Memory Bus | Quad-channel | Dual-channel |

| Memory Bandwidth | 59.7 GB/s | Not listed |

| ECC Memory | Yes | No |

| PCIe | Gen 3, 40 Lanes | Gen 4, 8 Lanes |

| Integrated Graphics | None | Iris Xe Graphics 80EU |

| Market Segment | Server/Workstation | Mobile |

| Production Status | End-of-life | Active |

| Release Date | 2014-09-07 | 2023-01-03 |

| Launch MSRP | $1364 | Not listed |

| Transistors | 2,600 million | Not listed |

| Die Size | 356 mm² | Not listed |