Intel Core i7-8550U vs Intel Core i9-10980XE Comparison

Where Each One Wins

The benchmark data paints a strikingly one-sided picture. The Intel Core i9-10980XE wins all six head-to-head comparisons in the database, covering Cinebench R15, R20, and R23 in both single-core and multi-core tests. This is not a close contest by any metric.

The i9-10980XE is clearly built for heavy multi-threaded workloads. Its 18 cores and 36 threads allow it to dominate in multi-core rendering tasks, where it posts scores that are roughly 450% higher than the i7-8550U across every Cinebench version. For anyone working with 3D rendering, video encoding, scientific simulation, or other parallel-heavy tasks, the data shows this processor is in a completely different class.

The i7-8550U, on the other hand, is a mobile processor designed for a different purpose entirely. Its wins, if they can be called that, come in efficiency and portability rather than raw performance. With a 15 W TDP compared to the i9-10980XE's 165 W, it is suited for thin-and-light laptops where battery life and thermal management matter more than absolute compute throughput. The database does not record a single benchmark victory for the i7-8550U in this comparison, but its design goals are evident from its specifications: 4 cores, 8 threads, a low power envelope, and integrated UHD 620 graphics.

The use-case split is therefore stark. The i9-10980XE belongs in a desktop workstation where power draw is not a constraint and maximum thread throughput is the priority. The i7-8550U belongs in a laptop where the task load is lighter, and the ability to run on battery and stay cool in a compact chassis takes precedence. Neither chip is a substitute for the other; they occupy opposite ends of Intel's product spectrum.

Architecture Differences

Both processors are built on Intel's 14 nm process node, but that is where the architectural similarities end. The i9-10980XE uses the Cascade Lake architecture, specifically the Cascade Lake-X variant, and belongs to the Core i9 Extreme X-Series 10th Gen family. The i7-8550U uses the older Kaby Lake architecture, specifically Kaby Lake-R, and is part of the Core i7 Kaby Lake-U Refresh lineup.

The core count difference is massive. The i9-10980XE packs 18 cores and 36 threads, while the i7-8550U has just 4 cores and 8 threads. This alone explains most of the performance gap in multi-threaded benchmarks. The cache hierarchy also differs significantly. Both have 64 KB of L1 cache per core, but the i9-10980XE has 1 MB of L2 cache per core versus 256 KB per core on the i7-8550U. L3 cache is even more lopsided: 24.75 MB shared on the i9 versus 8 MB shared on the i7.

Clock speeds tell an interesting story. The i9-10980XE has a base clock of 3.00 GHz and a boost clock of 4.80 GHz. The i7-8550U lists a base clock of 1800.00 MHz (1.80 GHz) and a boost clock of 4.00 GHz. The i7's base clock is notably low, which is typical for a low-power mobile part designed to conserve energy when idle or under light load. Its boost clock of 4.00 GHz shows it can still ramp up for short bursts of demanding work.

Memory support differs as well. The i9-10980XE uses quad-channel DDR4 with a memory bandwidth of 93.9 GB/s, while the i7-8550U supports DDR4 but the database does not record a memory bus configuration or bandwidth figure for it. The i9 also offers PCIe Gen 3 with 48 lanes from the CPU, while the i7 has no PCIe information recorded. The i7 includes integrated UHD 620 graphics; the i9 has no integrated graphics at all. The i9 has an unlocked multiplier for overclocking; the i7 does not. The i9 uses the Intel Socket 2066 platform, while the i7 is soldered to Intel BGA 1356.

Head-to-Head Benchmarks

The head-to-head results in the database are remarkable for their consistency. Across all six shared tests, the i9-10980XE leads by a margin between 450.8% and 458%. This uniformity suggests the performance gap is structural, rooted in core count and cache capacity, rather than workload-specific.

In Cinebench R15 multi-core, the i9 scores 2734 against the i7's 496, a 451.2% advantage. Single-core R15 shows the i9 at 385 versus 69, a 458% lead. The single-core gap is actually slightly larger in percentage terms than the multi-core gap, which is worth noting. It suggests the i9's higher boost clock and larger per-core L2 cache help even in lightly threaded tasks.

Cinebench R20 multi-core results show 11394 for the i9 and 2068 for the i7, a 451% difference. R20 single-core has the i9 at 1608 and the i7 at 291, a 452.6% lead. Cinebench R23 multi-core shows 27130 versus 4926, a 450.8% gap, and R23 single-core shows 3830 versus 695, a 451.1% difference.

The i7-8550U also has additional PassMark benchmarks in the database that have no i9 equivalent, including data compression at 74223, data encryption at 1944, extended instructions at 4665, and several others. These scores cannot be compared directly to the i9 since the i9 lacks corresponding entries, but they provide context for the i7's relative strengths in specific workloads. For instance, its data compression score of 74223 is substantially higher than its integer math score of 20770, suggesting the i7 handles compression tasks relatively well for its class.

The Verdict

The data is unambiguous. The i9-10980XE outperforms the i7-8550U by roughly 450% in every test the two share. This makes sense given the 18-core versus 4-core configuration, the larger caches, and the higher power envelope. The i9 is a desktop extreme processor with an end-of-life production status, launched in October 2019 with a launch MSRP of $1076. The i7 is an active mobile processor launched in August 2017.

Who should pick the i9-10980XE? Anyone running multi-threaded desktop workloads where the 165 W power draw is acceptable. The 93.9 GB/s quad-channel memory bandwidth and 48 PCIe lanes also make it suitable for memory-intensive and expansion-heavy systems. Its 64th percentile ranking among all CPUs in the database, with an average benchmark score of 7910, places it in the upper mid-range of recorded processors.

Who should pick the i7-8550U? Anyone needing a low-power mobile chip for a laptop. Its 15 W TDP, integrated graphics, and active production status make it a practical choice for portable systems. Its average benchmark score of 8407 is actually higher than the i9's 7910, but this is misleading because the averages are computed over different sets of tests. The i7's benchmark suite includes PassMark tests that favor its architecture, while the i9's suite is limited to Cinebench and Geekbench results.

The i7-8550U's nearest rivals include the Intel Xeon Gold 5318N at 8433 average score, a mere 0.3% ahead, and the Intel Core i5-10210U at 8344, which is 0.7% behind. The i9-10980XE's nearest rivals include the AMD EPYC 7551P at 7952, just 0.5% behind the i9, and the Intel Core i7-13700E at 7957, 0.6% behind. These rival comparisons show that both chips sit within a narrow performance band relative to their peers, despite the enormous gap between the two.

FAQ

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

A: The Intel Core i9-10980XE scores 27130 versus 4926 for the i7-8550U, a 450.8% advantage for the i9.

Q: Does the i7-8550U win any benchmark in this comparison?

A: No. The i9-10980XE wins all six shared head-to-head tests, with zero wins recorded for the i7-8550U.

Q: What is the core count difference between the two chips?

A: The i9-10980XE has 18 cores and 36 threads, while the i7-8550U has 4 cores and 8 threads.

Q: Which processor has integrated graphics?

A: The i7-8550U includes UHD 620 integrated graphics. The i9-10980XE has no integrated graphics.

Q: How do their power requirements compare?

A: The i9-10980XE has a TDP of 165 W, while the i7-8550U has a TDP of 15 W, a substantial difference reflecting their desktop versus mobile designs.

Q: Are both processors built on the same manufacturing process?

A: Yes, both use Intel's 14 nm process node, though they use different architectures: Cascade Lake for the i9 and Kaby Lake for the i7.

Specification Differences

| Specification | Intel Core i9-10980XE | Intel Core i7-8550U |

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

| Cores | 18 | 4 |

| Threads | 36 | 8 |

| Base Clock | 3.00 GHz | 1800.00 MHz |

| Boost Clock | 4.80 GHz | 4.00 GHz |

| TDP | 165 W | 15 W |

| Socket | Intel Socket 2066 | Intel BGA 1356 |

| Architecture | Cascade Lake | Kaby Lake |

| Codename | Cascade Lake-X | Kaby Lake-R |

| Generation | Core i9 Extreme (X-Series 10th Gen) | Core i7 (Kaby Lake-U Refresh) |

| Die Size | Not recorded | 123 mm² |

| L2 Cache | 1 MB (per core) | 256 KB (per core) |

| L3 Cache | 24.75 MB (shared) | 8 MB (shared) |

| Memory Bus | Quad-channel | Not recorded |

| Memory Bandwidth | 93.9 GB/s | Not recorded |

| PCIe | Gen 3, 48 Lanes (CPU only) | Not recorded |

| Integrated Graphics | None | UHD 620 |

| Market Segment | Desktop | Mobile |

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

| Release Date | 2019-10-18 | 2017-08-20 |

| Launch MSRP | $1076 | Not recorded |

| Multiplier Unlocked | Yes | No |

| Part Number | SRGSG | SR3LC |

| Average Benchmark Score | 7910 | 8407 |

| Percentile vs All CPUs | 64 | 64 |