Intel Core i7-5775C vs Intel Xeon E5-2629 v3 Comparison

Where Each One Wins

The Intel Xeon E5-2629 v3 is the clear winner in every recorded benchmark. It takes all six head-to-head Cinebench tests, with margins ranging from 20.4% to 20.6% across both single-core and multi-core workloads. The Xeon's advantage is consistent and broad, not limited to one type of task.

The Intel Core i7-5775C does not win a single head-to-head test. Its only recorded wins are in Geekbench, which the Xeon does not have entries for, so direct comparison there is not possible from the database. The Core i7's percentile ranking is 47, identical to the Xeon's 47, but its average benchmark score of 2224 trails the Xeon's 2283.

For use-case planning, the Xeon is the choice for any workload that relies on Cinebench-style rendering, which exercises both single-threaded and multi-threaded performance. The Core i7 is the choice for desktop platforms where its unlocked multiplier and integrated graphics matter, but purely from benchmark scores, the Xeon dominates every measured category.

Architecture Differences

The two processors come from different Intel architectures and process nodes. The Xeon E5-2629 v3 uses Haswell-EP on a 22 nm process, with a die size of 356 mm² and 2,600 million transistors. The Core i7-5775C uses Broadwell on a 14 nm process, with a die size of 182 mm² and no transistor count listed in the database.

Core counts differ significantly. The Xeon has 8 cores and 16 threads, while the Core i7 has 4 cores and 8 threads. The Xeon's base clock is 2.40 GHz with a boost of 3.20 GHz, while the Core i7 runs at 3.30 GHz base and 3.70 GHz boost. Higher clocks on the Core i7 do not overcome the Xeon's core advantage in the recorded tests.

Cache configurations diverge sharply. Both have 64 KB L1 and 256 KB L2 per core, but the Xeon carries 20 MB of shared L3, versus 6 MB on the Core i7. Memory support also differs: the Xeon supports both DDR3 and DDR4 in a quad-channel configuration with 59.7 GB/s bandwidth, while the Core i7 supports only DDR3 in dual-channel with 25.6 GB/s. The Xeon supports ECC memory; the Core i7 does not.

PCIe lane counts separate the platforms further. The Xeon provides 40 Gen 3 lanes from the CPU, the Core i7 provides 16 Gen 3 lanes. The Xeon has no integrated graphics, while the Core i7 includes Iris Pro Graphics 6200. The Xeon uses Socket 2011-3, the Core i7 uses Socket 1150. The Xeon is marked end-of-life, while the Core i7 is listed as active production.

Head-to-Head Benchmarks

The Xeon leads in every direct comparison. In Cinebench R15 multi-core, the Xeon scores 795 against the Core i7's 660, a 20.5% advantage. In single-core R15, the Xeon scores 112 against 93, a 20.4% lead. The Xeon wins both metrics despite the Core i7's higher clock speeds, which points to the Xeon's architecture and cache configuration carrying the workload.

Cinebench R20 repeats the pattern. Multi-core shows the Xeon at 3315 versus 2750, a 20.5% margin. Single-core shows 467 versus 388, a 20.4% margin. The consistency of the deltas across different Cinebench versions suggests the performance gap is structural rather than workload-specific.

Cinebench R23 confirms the trend. The Xeon scores 7893 multi-core, the Core i7 scores 6549, a 20.5% difference. Single-core shows 1114 against 924, a 20.6% gap, the largest relative margin recorded in the head-to-head set. The Core i7's best result is its Geekbench single-core score of 1441, but with no Xeon Geekbench entry, the database does not support a direct comparison there.

The average benchmark scores place the Xeon at 2283, slightly ahead of the Core i7's 2224. The Xeon's nearest rivals include the Intel Xeon D-1557 at 2282, the Intel Core i3-10305 at 2264, the Intel Core i5-10400H at 2303, and the Intel Core i7-8809G at 2307. The Core i7-5775C sits near the Intel Core i7-8559U at 2225, the Intel Xeon E5-4648 v3 at 2227, the Intel Xeon D-1548 at 2231, and the Intel Xeon D-1715TER at 2238. Both CPUs occupy the same general performance tier, but the Xeon edges ahead in aggregate scoring.

FAQ

Q: Which CPU has more cores?

A: The Intel Xeon E5-2629 v3 has 8 cores and 16 threads. The Intel Core i7-5775C has 4 cores and 8 threads.

Q: Does the Core i7-5775C have integrated graphics?

A: Yes, it includes Iris Pro Graphics 6200. The Xeon E5-2629 v3 has no integrated graphics listed.

Q: Which processor supports ECC memory?

A: The Xeon E5-2629 v3 supports ECC memory. The Core i7-5775C does not.

Q: How much larger is the Xeon's L3 cache?

A: The Xeon has 20 MB shared L3 cache. The Core i7 has 6 MB shared L3 cache.

Q: What is the biggest benchmark margin between them?

A: The largest recorded margin is in Cinebench R23 single-core, where the Xeon leads by 20.6%.

Q: Are both CPUs in the same performance percentile?

A: Yes, both are at the 47th percentile among all CPUs in the database.

Specification Differences

The table below lists only the fields where the two processors differ, per the database records.

| Field | Intel Xeon E5-2629 v3 | Intel Core i7-5775C |

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

| Cores | 8 | 4 |

| Threads | 16 | 8 |

| Base Clock | 2.40 GHz | 3.30 GHz |

| Boost Clock | 3.20 GHz | 3.70 GHz |

| TDP | 85 | 65 |

| Socket | Intel Socket 2011-3 | Intel Socket 1150 |

| Architecture | Haswell | Broadwell |

| Codename | Haswell-EP | Broadwell |

| Generation | Xeon E5 (Haswell-EP) | Core i7 (Broadwell) |

| Process Node | 22 nm | 14 nm |

| Transistors | 2,600 million | Not listed |

| Die Size | 356 mm² | 182 mm² |

| L3 Cache | 20 MB (shared) | 6 MB (shared) |

| Memory Support | DDR3, DDR4 | DDR3 |

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

| Memory Bandwidth | 59.7 GB/s | 25.6 GB/s |

| ECC Memory | Yes | No |

| PCIe Lanes | Gen 3, 40 Lanes (CPU only) | Gen 3, 16 Lanes (CPU only) |

| Integrated Graphics | None | Iris Pro Graphics 6200 |

| Market Segment | Server/Workstation | Desktop |

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

| Release Date | 2014-09-07T17:00:00.000Z | 2015-05-14T17:00:00.000Z |

| Launch MSRP | Not listed | $366 |

| Multiplier Unlocked | No | Yes |

| Part Number | SR1XY | SR2AG |

The Verdict

The data points to the Intel Xeon E5-2629 v3 for anyone who prioritizes raw Cinebench performance. It wins all six head-to-head tests, with margins between 20.4% and 20.6%. The Xeon's 8-core, 16-thread configuration, 20 MB L3 cache, and quad-channel DDR3/DDR4 memory support make it the stronger server or workstation part. Its higher TDP of 85 watts reflects the additional cores and memory controller capability.

The Intel Core i7-5775C fits a different role. Its unlocked multiplier, 65-watt TDP, and Iris Pro Graphics 6200 make it a desktop-oriented part, and it is listed as active production while the Xeon is end-of-life. Its launch MSRP is $366. From a pure benchmark standpoint, however, it loses every recorded comparison to the Xeon.

The Core i7's nearest rivals include the Core i7-8559U and Xeon D-1548, all within 0.6% of its average score. The Xeon's nearest rivals are all within 1.1% of its average score. Both processors sit at the 47th percentile, but the Xeon's average benchmark score of 2283 beats the Core i7's 2224. For a builder choosing between these two, the Xeon is the performance pick, while the Core i7 is the platform-flexible pick with graphics and overclocking support.