Intel Core i7-4860HQ vs Intel Xeon E3-1265L v4 Comparison

The Intel Core i7-4860HQ and Intel Xeon E3-1265L v4 are both 4-core, 8-thread processors from Intel, but they target different segments: one is a mobile part, the other a server/workstation chip. Benchmark data shows a clear and consistent winner across every tested workload, though the margins are not enormous. The Xeon E3-1265L v4 takes all six head-to-head benchmark wins, with the Core i7-4860HQ trailing by roughly 10% in each test.

Head-to-Head Benchmarks

The most striking pattern in the data is the uniformity of the Xeon’s advantage. In Cinebench R15 multi-core, the Xeon scores 595 against the i7’s 533, a delta of -10.4% for the i7. Single-core performance in R15 tells a similar story: 84 for the Xeon versus 75 for the i7, a -10.7% gap. Moving to Cinebench R20, the Xeon again leads multi-core with 2482 points against 2224 (-10.4%), and single-core with 350 versus 313 (-10.6%). The latest Cinebench R23 results show the same trend: the Xeon posts 5910 multi-core and 834 single-core, while the i7 manages 5297 and 747, respectively—both -10.4% deltas.

What is notable here is not just that the Xeon wins, but that the percentage gap is almost identical across all six tests. This suggests a consistent architectural or clock-speed advantage rather than a workload-specific strength. The i7 has a higher base clock (2.40 GHz vs 2.30 GHz) and a higher boost clock (3.60 GHz vs 3.30 GHz), yet it still loses by the same margin in every test. This points to the Xeon’s newer 14 nm process and Broadwell architecture delivering better instructions-per-clock (IPC) than the older Haswell design in the i7.

The i7 does have one benchmark category not shared by the Xeon: Geekbench scores. The i7-4860HQ scores 3527 multi-core and 1045 single-core in Geekbench. Since the Xeon does not have Geekbench results in the data, we cannot make a direct comparison there. However, given the consistent ~10% deficit in Cinebench, it would be reasonable to expect a similar gap in Geekbench, though the data does not confirm this.

Looking at average benchmark scores, the two are nearly identical overall: the i7 averages 1720, while the Xeon averages 1709. This is because the i7’s Geekbench results pull its average up, masking the Cinebench deficit. The i7 sits at the 41st percentile of all CPUs, while the Xeon is at the 40th—essentially tied in overall standing. Their nearest rivals reflect this closeness: the i7’s closest competitor is the AMD Athlon Gold PRO 3150GE (1722 average, -0.1% delta), while the Xeon’s closest is the Intel Xeon E5-1620 v3 (1709, 0% delta). Both processors are also within 0.4% of the Intel Core i7-990X and AMD Ryzen 7 PRO 2700U.

Where Each One Wins

The Xeon E3-1265L v4 wins every benchmark where both are tested. This makes it the unequivocal choice for raw compute performance in Cinebench workloads—which are representative of rendering, video encoding, and other heavily threaded productivity tasks. Its single-core advantage is equally consistent, so it also handles lightly threaded applications better. If you are building a workstation or a server and can use a Socket 1150 board, the data says the Xeon is simply faster.

The Core i7-4860HQ does not have a single benchmark win in the head-to-head data. Its only potential advantage comes from its Geekbench scores, which exist only for the i7. With a Geekbench multi-core score of 3527 and single-core of 1045, it demonstrates respectable performance in that suite, but without a Xeon score to compare, we cannot claim it wins there. The i7’s real strengths lie outside raw benchmark numbers: it is a mobile part with a 47 W TDP, designed for laptops, whereas the Xeon is a 35 W server chip. For a mobile system, the i7 is the only option that fits the Intel BGA 1364 socket; the Xeon requires Socket 1150.

Another differentiator is the integrated graphics. The i7 packs Intel HD 5200, while the Xeon comes with Intel Iris Pro P6300. Both are capable iGPUs, but the data does not provide performance numbers for either, so we cannot quantify a winner there. The Xeon does support ECC memory, which the i7 does not—a critical feature for error-sensitive server workloads. If data integrity is paramount, the Xeon is the clear choice regardless of its benchmark lead.

Architecture Differences

The two processors come from different architectures and manufacturing nodes. The i7-4860HQ is built on Haswell, codenamed Crystalwell, using Intel’s 22 nm process. It contains 1,400 million transistors on a 264 mm² die. The Xeon E3-1265L v4, by contrast, uses the newer Broadwell architecture (Broadwell-DT) on a 14 nm node, with a smaller 182 mm² die size. The transistor count for the Xeon is not listed in the data, but the smaller die on a denser process suggests a more efficient design.

Both chips have identical cache hierarchies: 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. They also share the same memory type (DDR3) and dual-channel bus, though the Xeon has a higher memory bandwidth at 29.9 GB/s versus 25.6 GB/s for the i7. This bandwidth advantage likely contributes to the Xeon’s consistent lead in multi-core benchmarks.

The Xeon’s 14 nm process gives it a transistor-level advantage in power efficiency, which is reflected in its lower 35 W TDP compared to the i7’s 47 W, despite the Xeon being the faster chip. Both support PCIe Gen 3 with 16 lanes from the CPU. The i7 is a mobile part (Intel BGA 1364 socket), while the Xeon is a server/workstation part (Socket 1150). Neither has an unlocked multiplier. The i7 was released in January 2014, while the Xeon came later in June 2015.

FAQ

Q: Which processor is faster in Cinebench R23 multi-core?

A: The Intel Xeon E3-1265L v4 scores 5910, which is 10.4% higher than the Intel Core i7-4860HQ’s 5297.

Q: Does the Core i7-4860HQ win any benchmark in the head-to-head comparison?

A: No. The Xeon E3-1265L v4 wins all six Cinebench tests (R15, R20, and R23, both single- and multi-core). The i7 only has Geekbench scores (3527 multi-core, 1045 single-core) that are not compared against the Xeon.

Q: Can I use ECC memory with either processor?

A: Only the Xeon E3-1265L v4 supports ECC memory. The Core i7-4860HQ does not, making the Xeon the choice for error-correcting server memory.

Q: Which chip has a lower TDP?

A: The Xeon E3-1265L v4 has a 35 W TDP, which is lower than the Core i7-4860HQ’s 47 W TDP, despite the Xeon being faster in benchmarks.

Q: Are these processors the same architecture?

A: No. The i7-4860HQ uses Haswell (Crystalwell) on a 22 nm process, while the Xeon E3-1265L v4 uses Broadwell (Broadwell-DT) on a 14 nm process.

Q: What is the memory bandwidth difference?

A: The Xeon E3-1265L v4 has 29.9 GB/s of memory bandwidth, while the Core i7-4860HQ has 25.6 GB/s. Both use dual-channel DDR3.

The Verdict

The data is unambiguous: the Intel Xeon E3-1265L v4 is the superior performer in every benchmark where both are tested. It wins all six Cinebench tests by about 10%, offers more memory bandwidth, supports ECC, and does so at a lower 35 W TDP. For any workload that benefits from CPU compute—rendering, encoding, server tasks—the Xeon is the better buy on paper.

However, the choice is not purely about performance. The Core i7-4860HQ is a mobile chip for the Intel BGA 1364 socket, meaning it is designed for laptops and compact systems. The Xeon requires a Socket 1150 motherboard, which is a desktop/server platform. If you are upgrading a laptop or building a small-form-factor mobile rig, the i7 is your only option. If you are building a desktop workstation or server, the Xeon is the faster and more feature-rich choice.

The i7 does have a slightly higher boost clock (3.60 GHz vs 3.30 GHz) and a higher base clock (2.40 GHz vs 2.30 GHz), but this does not translate into a performance win. Its Geekbench scores (3527 multi, 1045 single) are respectable, but they cannot be compared to the Xeon since no Geekbench data exists for the latter. The i7 also has a higher average benchmark score (1720 vs 1709) and a marginally better percentile ranking (41st vs 40th), but these are driven by the extra Geekbench results, not by Cinebench superiority.

For a desktop builder prioritizing raw speed and server-grade features, the Xeon E3-1265L v4 is the clear pick. Its 10% lead across all Cinebench tests, combined with ECC support and lower power draw, makes it the more capable processor. For a mobile user who needs a Haswell chip in a BGA 1364 socket, the i7-4860HQ is the only choice, and its performance is still competitive—just consistently behind the Xeon. The launch MSRP of the Xeon was $417, stated once here for reference.

Specification Differences

| Specification | Intel Core i7-4860HQ | Intel Xeon E3-1265L v4 |

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

| Base Clock | 2.40 GHz | 2.30 GHz |

| Boost Clock | 3.60 GHz | 3.30 GHz |

| TDP | 47 W | 35 W |

| Socket | Intel BGA 1364 | Intel Socket 1150 |

| Architecture | Haswell (Crystalwell) | Broadwell (Broadwell-DT) |

| Process Node | 22 nm | 14 nm |

| Transistors | 1,400 million | Not listed |

| Die Size | 264 mm² | 182 mm² |

| Memory Bandwidth | 25.6 GB/s | 29.9 GB/s |

| ECC Memory | No | Yes |

| Integrated Graphics | Intel HD 5200 | Intel Iris Pro P6300 |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2014-01-31 | 2015-06-01 |

| Launch MSRP | Not listed | $417 |

| Part Number | SR1BP | SR2B3 |

Both chips share identical core/thread counts (4/8), L1/L2/L3 cache sizes (64 KB, 256 KB, 6 MB), memory type (DDR3), memory bus (dual-channel), PCIe support (Gen 3, 16 lanes), and both have locked multipliers. The Xeon’s advantages in process node, bandwidth, ECC, and power efficiency, combined with its benchmark lead, make it the stronger part overall, while the i7’s only distinguishing features are its mobile socket and higher clock speeds.