Intel Core i9-8950HK vs Intel Xeon E5-1650 v3 Comparison

Where Each One Wins

The recorded data paints a remarkably tight picture between these two six-core, twelve-thread processors. Across every head-to-head benchmark in the database, the Intel Xeon E5-1650 v3 takes the win, but the margins are consistently razor-thin, ranging from 0.2% to 0.8%. The Xeon claims all six recorded victories, while the Core i9-8950HK records zero wins. However, this does not mean the mobile chip is without merit; its role shifts to a different kind of strength.

The Xeon E5-1650 v3, a server and workstation part, demonstrates its edge in sustained compute workloads. The benchmark results show it ahead in every Cinebench iteration, from R15 through R23, in both multi-core and single-core tests. Its 3.50 GHz base clock, lower than the i9's boost but higher than the i9's 2.90 GHz base, likely contributes to consistent performance in long-running tasks. The data implies this chip is built for environments where stability and predictable throughput across all cores matter more than peak burst speed.

The Core i9-8950HK, conversely, belongs to the mobile segment. Its benchmarks show it nearly matching the Xeon in every test, yet it does so within a 95 W TDP envelope compared to the Xeon's 140 W. This is the core of its advantage: it delivers workstation-class Cinebench scores in a form factor designed for laptops. The i9 also carries integrated graphics, the UHD 630, which the Xeon lacks entirely. For scenarios where a discrete GPU is absent or where power and space are constrained, the i9 has a functional edge that no benchmark in this set can quantify.

The average benchmark score further separates them. The Xeon sits at 2545, while the i9 reaches 2641, a difference driven by the i9's additional Geekbench results, which the Xeon does not have recorded. The i9's percentile rank matches the Xeon at 49, placing both squarely in the middle of the database's CPU population.

Architecture Differences

The two processors come from different architectural eras and serve different market segments. The Xeon E5-1650 v3 uses the Haswell architecture, specifically Haswell-EP, built on Intel's 22 nm process node. It packs 2,600 million transistors into a 356 mm² die. The Core i9-8950HK uses Coffee Lake, specifically Coffee Lake-H, on a 14 nm node, with a much smaller 149 mm² die. The database does not list transistor counts for the i9, but the smaller die on a denser process is clear.

Cache configurations differ notably. Both share 64 KB of L1 and 256 KB of L2 per core, but the L3 cache diverges: the Xeon offers 15 MB shared, while the i9 provides 12 MB shared. This 3 MB difference could explain the Xeon's slight edge in multi-threaded workloads, as larger shared caches often reduce memory latency under heavy core utilization.

Memory support also separates them. The Xeon supports DDR4 with a quad-channel memory bus and a recorded memory bandwidth of 68.3 GB/s. The i9 also supports DDR4, but the database does not list its memory bus width or bandwidth, leaving that comparison incomplete. The Xeon further supports ECC memory, a critical feature for server and workstation reliability, while the i9 does not.

Socket and platform requirements are entirely different. The Xeon uses Intel Socket 2011-3, a desktop and server platform with 40 PCIe Gen 3 lanes from the CPU. The i9 uses Intel BGA 1440, a soldered mobile socket, with no PCIe details recorded. The Xeon has no integrated graphics, while the i9 includes UHD 630. Both are unlocked for overclocking, and both are end-of-life in production status.

Release dates place the Xeon in September 2014 and the i9 in April 2018, almost four years apart. The Xeon's part number is QFSTSR20J, the i9's is SRCKN.

Head-to-Head Benchmarks

The head-to-head results show a consistent pattern: the Xeon wins every recorded test, but by margins that are nearly imperceptible in real-world usage. In Cinebench R15 multi-core, the Xeon scores 887 against the i9's 884, a 0.3% advantage. Single-core in R15 sees the Xeon at 125 versus 124, a 0.8% lead, the largest margin in the entire comparison.

Moving to Cinebench R20, the Xeon records 3696 multi-core against 3686, again 0.3% ahead. Single-core shows 521 versus 520, a 0.2% edge. Cinebench R23 follows the same story: the Xeon reaches 8800 multi-core versus 8777, a 0.3% lead, and 1242 single-core versus 1239, a 0.2% lead.

These numbers indicate that the architectural advantages of the Xeon, its larger L3 cache and quad-channel memory bandwidth, translate into real but marginal benchmark superiority. The i9's higher boost clock of 4.70 GHz versus the Xeon's 3.80 GHz does not overcome the Xeon's other strengths in these tests. The Geekbench results, which only appear for the i9, show 4577 multi-core and 1318 single-core, but without a corresponding Xeon score, they cannot be compared directly.

The average benchmark score tells a different story. The i9's 2641 average exceeds the Xeon's 2545 by roughly 3.8%. This is because the average includes the Geekbench scores, which are not part of the head-to-head set. The i9's nearest rivals include the Intel Core i7-5820K with an identical average score of 2642, a 0% delta, and the Intel Xeon E-2274G at 2643, a -0.1% delta. The Xeon's nearest rivals include the Intel Xeon E5-4640 v3 at 2550, a -0.2% delta, and the AMD Ryzen 7 4800HS at 2557, a -0.4% delta.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Xeon E5-1650 v3 wins all six recorded head-to-head tests, while the Intel Core i9-8950HK wins none.

Q: What is the largest performance gap between the two in any test?

A: The largest gap is in Cinebench R15 single-core, where the Xeon leads by 0.8%, scoring 125 versus the i9's 124.

Q: Do both processors have the same core and thread counts?

A: Yes, both have 6 cores and 12 threads.

Q: Which chip supports ECC memory?

A: The Intel Xeon E5-1650 v3 supports ECC memory; the Intel Core i9-8950HK does not.

Q: How do their average benchmark scores compare?

A: The Core i9-8950HK has a higher average benchmark score of 2641, while the Xeon E5-1650 v3 records 2545, a difference of about 3.8% in the i9's favor.

Q: Are both processors unlocked for overclocking?

A: Yes, both the Xeon E5-1650 v3 and the Core i9-8950HK have unlocked multipliers.

The Verdict

The data supports a clear split by use case. For a workstation or server environment where ECC memory, quad-channel bandwidth, and a 40-lane PCIe Gen 3 connection are required, the Intel Xeon E5-1650 v3 is the only choice between these two. Its 68.3 GB/s memory bandwidth and 15 MB L3 cache provide the platform features that the i9 cannot match. The Xeon's benchmark wins, while small, are consistent across every Cinebench test, indicating a slight but reliable performance edge.

For a mobile user, the Intel Core i9-8950HK is the obvious pick, not because it wins benchmarks, but because it exists in a laptop form factor at all. Its 95 W TDP, integrated UHD 630 graphics, and BGA 1440 socket make it usable in portable systems. Its average benchmark score is higher, driven by Geekbench results, and its 4.70 GHz boost clock offers higher peak frequency for bursty workloads, even if the recorded Cinebench data does not reflect an advantage.

Neither chip dominates the other in raw performance. The Xeon wins every shared test, but the i9 offers platform features and portability that the Xeon cannot. The user who needs a server processor with ECC should pick the Xeon. The user who needs a high-end laptop CPU should pick the i9. The benchmark data alone does not declare a universal winner.

Specification Differences

| Specification | Intel Xeon E5-1650 v3 | Intel Core i9-8950HK |

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

| Architecture | Haswell | Coffee Lake |

| Codename | Haswell-EP | Coffee Lake-H |

| Generation | Xeon E5 (Haswell-EP) | Core i9 (Coffee Lake-H) |

| Process Node | 22 nm | 14 nm |

| Die Size | 356 mm² | 149 mm² |

| Transistors | 2,600 million | Not listed |

| Base Clock | 3.50 GHz | 2.90 GHz |

| Boost Clock | 3.80 GHz | 4.70 GHz |

| TDP | 140 W | 95 W |

| Socket | Intel Socket 2011-3 | Intel BGA 1440 |

| L3 Cache | 15 MB (shared) | 12 MB (shared) |

| Memory Bus | Quad-channel | Not listed |

| Memory Bandwidth | 68.3 GB/s | Not listed |

| ECC Memory | Yes | No |

| PCIe | Gen 3, 40 Lanes (CPU only) | Not listed |

| Integrated Graphics | None | UHD 630 |

| Market Segment | Server/Workstation | Mobile |

| Release Date | 2014-09-07 | 2018-04-01 |

| Part Number | QFSTSR20J | SRCKN |

| Average Benchmark Score | 2545 | 2641 |

| Percentile vs All CPUs | 49 | 49 |