CPU Comparison

The Intel Core i5-9600KF and Intel Xeon E-2186M are both six-core Coffee Lake parts, but the data reveals they solve different problems. The Xeon E-2186M wins six of eight head-to-head benchmarks, taking every Cinebench test by a margin of roughly 5%. However, the i5-9600KF has a decisive edge in Geekbench, leading by 16.5% in multi-core and 11.2% in single-core. The verdict is straightforward: the Xeon E-2186M is the stronger overall compute engine in rendering workloads, while the i5-9600KF is better for the tasks measured by Geekbench. The desktop part (i5-9600KF) is end-of-life, unlocked, and built for the Socket 1151 platform; the server/workstation part (Xeon E-2186M) is also end-of-life, locked, and soldered to BGA 1440, with ECC memory support and integrated graphics. The Xeon E-2186M edges ahead in average benchmark score (2912 vs 2935 for the i5, with the Xeon actually lower), but the raw head-to-head results show the Xeon winning the rendering suite. The i5-9600KF places in the 52nd percentile of all CPUs, the Xeon in the 51st, a negligible gap in overall standing. The decision comes down to workload: pick the Xeon for Cinebench-style multi-threaded rendering, pick the i5 for Geekbench-heavy general responsiveness.

The Verdict

From the data, the Intel Xeon E-2186M is the more consistent performer in the Cinebench suite, winning all six tests against the i5-9600KF. The margins are uniform: 5.2% in Cinebench R15 multi-core (961 vs 911) and single-core (135 vs 128), 5.2% in R20 multi-core (4007 vs 3799) and 5.1% in R20 single-core (565 vs 536), and 5.2% in R23 multi-core (9542 vs 9047) and single-core (1347 vs 1277). That consistency suggests a fundamental advantage in threaded rendering, likely tied to the Xeon’s 12 threads versus the i5’s 6 threads. The i5-9600KF fights back in Geekbench, where it posts 6184 multi-core (vs 5306) and 1595 single-core (vs 1434), giving it 16.5% and 11.2% leads respectively. So for users running Cinebench-based workloads, the Xeon is the clear pick. For Geekbench-style tasks, the i5-9600KF is better. The average benchmark scores are nearly identical, 2935 for the i5, 2912 for the Xeon, with the i5 sitting 0.8% above the Xeon in the rival list, but that aggregate hides the split personality of these two chips. The Xeon’s 45W TDP versus the i5’s 95W TDP is a major differentiator; the Xeon achieves its Cinebench wins at less than half the power envelope. The i5-9600KF is unlocked, so overclocking is possible, but the data does not include any overclocked results. The Xeon E-2186M has a 4.80 GHz boost clock versus 4.60 GHz on the i5, which helps explain its Cinebench single-core wins. In short: the Xeon wins rendering, the i5 wins Geekbench, and the Xeon does it with far lower power draw.

Architecture Differences

Both CPUs are built on Intel’s 14 nm process and share the Coffee Lake architecture family, but they diverge in implementation. The i5-9600KF is Coffee Lake (specifically Coffee Lake Refresh) for desktop, while the Xeon E-2186M is Coffee Lake-H, the high-performance mobile variant, used in the Xeon E-2100 series. The core count is identical at six, but the Xeon doubles the thread count with 12 threads against the i5’s 6. The Xeon has a larger L3 cache: 12 MB shared versus 9 MB shared on the i5. Both have 64 KB L1 and 256 KB L2 per core. The Xeon includes integrated graphics (UHD Graphics P630); the i5-9600KF has none, as indicated by the null field. The Xeon supports ECC memory, a key server/workstation feature, while the i5 does not. The Xeon is soldered to BGA 1440, whereas the i5 uses the socketed Intel Socket 1151. The Xeon’s die size is 154 mm²; the i5’s die size is not listed. The Xeon’s base clock is lower at 2.90 GHz versus 3.70 GHz, but its boost clock is higher at 4.80 GHz versus 4.60 GHz. The Xeon is a locked multiplier part; the i5 is unlocked. The Xeon’s market segment is Server/Workstation, the i5’s is Desktop. The Xeon has a 45W TDP, the i5 a 95W TDP. Both support DDR4 dual-channel memory with 42.7 GB/s bandwidth. Both use PCIe Gen 3 with 16 lanes from the CPU. The Xeon launched earlier (2018-04-03) than the i5 (2019-01-07), and both are end-of-life. The Xeon’s launch MSRP was $623; the i5 has no listed launch MSRP.

FAQ

Q: Which CPU has more threads?

A: The Intel Xeon E-2186M has 12 threads, double the 6 threads on the Intel Core i5-9600KF, despite both having 6 cores.

Q: Which CPU is better for single-core Cinebench performance?

A: The Xeon E-2186M wins every single-core Cinebench test, with a 5.2% lead in R15 (135 vs 128) and R23 (1347 vs 1277), and a 5.1% lead in R20 (565 vs 536).

Q: Does the i5-9600KF beat the Xeon in any benchmark?

A: Yes, the i5-9600KF wins both Geekbench tests, leading by 16.5% in multi-core (6184 vs 5306) and 11.2% in single-core (1595 vs 1434).

Q: What is the power draw difference?

A: The Xeon E-2186M has a 45W TDP, while the i5-9600KF has a 95W TDP, making the Xeon significantly more power-efficient on paper.

Q: Can either CPU use ECC memory?

A: Only the Xeon E-2186M supports ECC memory; the i5-9600KF does not.

Q: Which CPU has integrated graphics?

A: The Xeon E-2186M includes UHD Graphics P630, while the i5-9600KF has no integrated graphics.

Specification Differences

| Field | Intel Core i5-9600KF | Intel Xeon E-2186M |

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

| Series | null | Xeon E-2100 series |

| Threads | 6 | 12 |

| Base Clock | 3.70 GHz | 2.90 GHz |

| Boost Clock | 4.60 GHz | 4.80 GHz |

| TDP | 95 W | 45 W |

| Socket | Intel Socket 1151 | Intel BGA 1440 |

| Codename | Coffee Lake | Coffee Lake-H |

| Generation | Core i5 (Coffee Lake Refresh) | Xeon E (Coffee Lake) |

| Die Size | null | 154 mm² |

| L3 Cache | 9 MB (shared) | 12 MB (shared) |

| ECC Memory | false | true |

| Integrated Graphics | null | UHD Graphics P630 |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2019-01-07 | 2018-04-03 |

| Launch MSRP | null | $623 |

| Multiplier Unlocked | true | false |

Head-to-Head Benchmarks

The head-to-head data is lopsided in count, but not in magnitude. The Xeon E-2186M wins all six Cinebench tests, and each win is almost exactly 5.2% (except R20 single-core at 5.1%). This uniformity is remarkable: it suggests the Xeon’s advantage is structural, not workload-specific. In Cinebench R15 multi-core, the Xeon scores 961 against the i5’s 911. In R15 single-core, it’s 135 vs 128. The R20 multi-core test shows 4007 vs 3799, and single-core shows 565 vs 536. In R23, the Xeon posts 9542 vs 9047 multi-core and 1347 vs 1277 single-core. Across all six tests, the Xeon’s higher boost clock (4.80 GHz vs 4.60 GHz) and double thread count likely drive both single and multi-core wins. The i5-9600KF’s wins are larger in percentage terms but come in only one benchmark family. Geekbench multi-core shows a 16.5% lead (6184 vs 5306), and Geekbench single-core shows an 11.2% lead (1595 vs 1434). The i5 wins these despite having half the threads of the Xeon, which indicates the Geekbench workload favors the i5’s higher base clock (3.70 GHz vs 2.90 GHz) and possibly its desktop-tuned memory latency. The average benchmark scores are close: the i5 averages 2935, the Xeon 2912, but those averages mask the fact that the Xeon wins the heavier rendering tests while the i5 wins the lighter general-purpose tests. The i5’s percentile rank is 52, the Xeon’s is 51, a difference of one percentage point in overall standing. Looking at nearest rivals, the i5-9600KF is 0.8% above the Xeon in average score, but the Xeon is 0.1% above the AMD Ryzen 5 PRO 1600 and 0.2% above the Intel Core i5-1335UE.

Where Each One Wins

The Xeon E-2186M is the winner for any Cinebench-based rendering workload. It takes all six Cinebench multi-core and single-core tests, with margins between 5.1% and 5.2%. This makes it the better choice for 3D rendering, video encoding, or any task that scales with thread count and sustained boost clocks. Its 12 threads and 12 MB L3 cache give it a structural edge in parallel workloads, even at a much lower 45W TDP. The Xeon also brings ECC memory support and integrated graphics, making it suitable for workstation or server environments where data integrity and basic display output are required. Its locked multiplier is a non-issue for those use cases. The i5-9600KF wins in Geekbench, with a 16.5% multi-core lead and an 11.2% single-core lead. That suggests it has better performance in the specific mix of integer, floating-point, and memory tests that Geekbench uses. The i5’s higher base clock (3.70 GHz vs 2.90 GHz) and unlocked multiplier make it the pick for users who want to overclock or who run lightly-threaded applications that respond to raw clock speed. Its desktop Socket 1151 platform means easy upgradeability and standard cooling solutions, though its 95W TDP requires more robust cooling than the Xeon’s 45W. The i5 has no integrated graphics, so a discrete GPU is mandatory. The Xeon’s higher boost clock (4.80 GHz vs 4.60 GHz) does not save it in Geekbench, where the i5 wins decisively. For a mixed workload, the Xeon is the safer bet due to its Cinebench dominance and lower power draw. For a desktop gaming or general-use build where Geekbench performance matters more, the i5-9600KF is the better fit. The data does not support a single all-around winner; it supports a clear split based on benchmark family.