Intel Core i7-10810U vs Intel Xeon E3-1585L v5 Comparison

The Intel Xeon E3-1585L v5 and Intel Core i7-10810U are two end-of-life processors from different market segments. The Xeon is a Skylake-H server/workstation chip, while the i7 is a Comet Lake-U mobile part. In the recorded Cinebench suite, the Xeon wins all six head-to-head tests, but by margins of less than 1.1%. The i7 counters with more cores, a higher boost clock, and a much lower TDP, yet the benchmark data consistently favors the older Xeon.

Where Each One Wins

The Xeon E3-1585L v5 takes every benchmark in the head-to-head comparison. It wins both single-core and multi-core tests across Cinebench R15, R20, and R23. The i7-10810U does not record a single win. The largest margin is 1% in Cinebench R15 multicore and singlecore, while the smallest is 0.7% in R20 singlecore. For users prioritizing Cinebench performance, the Xeon is the clear choice. However, the i7 offers more cores and threads (6 vs 4) and a higher boost clock (4.90 GHz vs 3.70 GHz), but the benchmark data does not show an advantage in these tests. The i7 also carries a 25 W TDP against the Xeon's 45 W, which may be relevant for power-constrained mobile designs, but that is not a performance win.

Architecture Differences

Both processors are built on Intel's 14 nm process, but they belong to different architectural generations. The Xeon uses the Skylake-H architecture with the codename Skylake-H, while the i7 uses Comet Lake-U. The Xeon has 4 cores and 8 threads, while the i7 has 6 cores and 12 threads. The Xeon's base clock is 3.00 GHz and its boost clock is 3.70 GHz. The i7's base clock is 1100.00 MHz (1.10 GHz) and its boost clock is 4.90 GHz. The Xeon has a larger die size at 171 mm² and 2,300 million transistors, while the i7's die size and transistor count are not recorded. Cache configurations differ: both have 64 KB L1 and 256 KB L2 per core, but the Xeon has 8 MB shared L3, while the i7 has 12 MB shared L3. Memory support is identical for both: DDR3 and DDR4, dual-channel. The Xeon has a recorded memory bandwidth of 34.1 GB/s, while the i7's is not listed. The Xeon supports ECC memory, the i7 does not. The Xeon's integrated graphics are Iris Pro Graphics P580, while the i7 uses UHD Graphics. Both use the same socket, Intel BGA 1440. The Xeon is a server/workstation part, the i7 is a mobile part. The Xeon was released in 2016, the i7 in 2020. Both are end-of-life.

Head-to-Head Benchmarks

The recorded data shows a consistent, though narrow, lead for the Xeon across all six Cinebench tests. In Cinebench R15 multicore, the Xeon scores 693 against the i7's 686, a 1% advantage. In R15 singlecore, the Xeon scores 97 versus 96, also a 1% lead. Moving to Cinebench R20, the Xeon scores 2888 in multicore against 2862, a 0.9% edge, and 407 in singlecore against 404, a 0.7% lead. In Cinebench R23, the Xeon scores 6878 in multicore versus 6816, a 0.9% difference, and 971 in singlecore versus 962, again 0.9%. The average benchmark score for the Xeon is 1989, while the i7 sits at 1971. Both processors land at the 44th percentile among all CPUs in the database. The Xeon's nearest rivals include the Intel Xeon E3-1285L v4 (average score 1991, delta -0.1%) and the AMD Ryzen 5 1500X (1992, delta -0.1%). The i7's nearest rivals include the Intel Xeon E3-1245 v5 (1973, delta -0.1%) and the AMD Ryzen 3 2300X (1968, delta 0.1%). These margins are small enough that real-world differences would be difficult to perceive, but the Xeon is technically the faster part in every measured workload.

FAQ

Q: Which CPU is faster in multi-core Cinebench tests?

A: The Xeon E3-1585L v5 wins all three multi-core tests. It scores 693, 2888, and 6878 in Cinebench R15, R20, and R23 respectively, against the i7-10810U's 686, 2862, and 6816.

Q: Which CPU has more cores and threads?

A: The i7-10810U has 6 cores and 12 threads, while the Xeon E3-1585L v5 has 4 cores and 8 threads.

Q: Does the Xeon support ECC memory?

A: Yes, the Xeon E3-1585L v5 supports ECC memory. The i7-10810U does not.

Q: Which CPU has a higher boost clock?

A: The i7-10810U has a boost clock of 4.90 GHz, while the Xeon E3-1585L v5 boosts to 3.70 GHz.

Q: Which CPU has a larger L3 cache?

A: The i7-10810U has 12 MB of shared L3 cache, while the Xeon E3-1585L v5 has 8 MB.

Q: What is the launch MSRP of the Xeon?

A: The Xeon E3-1585L v5 had a launch MSRP of $445. The i7-10810U has no recorded launch MSRP.

Specification Differences

| Field | Intel Xeon E3-1585L v5 | Intel Core i7-10810U |

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

| Cores | 4 | 6 |

| Threads | 8 | 12 |

| Base Clock | 3.00 GHz | 1100.00 MHz |

| Boost Clock | 3.70 GHz | 4.90 GHz |

| TDP | 45 W | 25 W |

| Architecture | Skylake | Comet Lake |

| Codename | Skylake-H | Comet Lake-U |

| Generation | Xeon E3 (Skylake-H) | Core i7 (Comet Lake-U) |

| Transistors | 2,300 million | Not recorded |

| Die Size | 171 mm² | Not recorded |

| L3 Cache | 8 MB (shared) | 12 MB (shared) |

| Memory Bandwidth | 34.1 GB/s | Not recorded |

| ECC Memory | Yes | No |

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

| Integrated Graphics | Iris Pro Graphics P580 | UHD Graphics |

| Market Segment | Server/Workstation | Mobile |

| Release Date | 2016-05-30 | 2020-04-01 |

| Launch MSRP | $445 | Not recorded |

| Part Number | SR2R9 | Not recorded |

The two processors share the same socket, process node, foundry, L1 and L2 cache sizes, memory support (DDR3 and DDR4), memory bus (dual-channel), and multiplier unlock status (both locked). Both are end-of-life and sit at the 44th percentile in the database. The Xeon's higher base clock and ECC support make it a better fit for server or workstation tasks, while the i7's lower TDP and higher boost clock target mobile efficiency. Yet in the recorded Cinebench results, the Xeon holds a slim but complete advantage.