Intel Core i3-9350K vs Intel Xeon D-1537 Comparison

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core i3-9350K and the Intel Xeon D-1537 shows a consistent, though narrow, advantage for the desktop part across every recorded workload. The Core i3-9350K wins all six head-to-head Cinebench tests, with the largest margins appearing in single-threaded workloads.

In Cinebench R15, the Core i3-9350K scores 650 in the multi-core test against 637 for the Xeon D-1537, a 2% lead. The single-core R15 result is closer: 91 versus 90, a 1.1% edge for the i3. Moving to Cinebench R20, the i3-9350K posts 2711 in multi-core versus 2657 for the Xeon, again a 2% delta. The R20 single-core test shows 382 against 375, a 1.9% advantage.

Cinebench R23, the most demanding of the recorded workloads, repeats the pattern. The Core i3-9350K scores 6456 in multi-core, while the Xeon D-1537 records 6327, a 2% difference. In the R23 single-core test, the i3-9350K hits 911 against 893 for the Xeon, a 2% margin.

The data indicates a clear trend: the Core i3-9350K outpaces the Xeon D-1537 by roughly 2% in every test where a percentage is recorded. The smallest gap is in the R15 single-core test at 1.1%, while the largest gaps appear in the R15 multi-core, R20 multi-core, and R23 tests, all at 2%. The R20 single-core test falls between these at 1.9%.

What is notable is the consistency of the margin. Despite the Xeon D-1537 having double the cores and four times the threads, the Core i3-9350K maintains a lead in multi-threaded workloads. This suggests that the i3's higher clock speeds and newer architecture compensate for its lower core count. The average benchmark score for the i3-9350K is 1867, placing it near rivals like the Intel Xeon E5-1630 v4 at 1869 (0.1% behind) and the Intel Core i5-1035G4 at 1861 (0.3% ahead). The Xeon D-1537's average is 1830, matching the Intel Xeon E5-2608L v3 exactly and sitting just 0.1% behind the AMD Ryzen 5 4600U's 1832.

Both processors share the same 42nd percentile ranking among all CPUs in the database, indicating they occupy a similar performance tier despite their different designs.

Where Each One Wins

The Intel Core i3-9350K wins every recorded benchmark, so the use-case split is based on the magnitude and nature of those wins rather than any reversal of fortunes.

For single-threaded performance, the Core i3-9350K is the clear choice. Its boost clock of 4.60 GHz, combined with the Coffee Lake architecture, delivers scores of 911 in Cinebench R23 single-core and 382 in R20 single-core. These wins are narrow in percentage terms (2% and 1.9% respectively), but they reflect a fundamental advantage in lightly threaded workloads. Applications that depend on a single fast core, such as older games or certain legacy productivity tools, will favor the i3-9350K.

For multi-threaded workloads, the picture is more nuanced. The Xeon D-1537 brings 8 cores and 16 threads to the table, yet still trails the 4-core, 4-thread i3-9350K in every multi-core test. The i3's 4.60 GHz boost clock and 4.00 GHz base clock allow it to outrun the Xeon's 2.30 GHz boost and 1700.00 MHz base in Cinebench R23 multi-core (6456 versus 6327) and R20 multi-core (2711 versus 2657). This makes the i3-9350K the better option for most desktop workloads, including content creation and software compilation, where the recorded results show it holding a consistent 2% lead.

However, the Xeon D-1537 has strengths that the benchmark scores do not capture. Its 35 W TDP is dramatically lower than the i3-9350K's 91 W, making it suitable for compact, power-constrained server environments. It supports DDR3 and DDR4 memory, while the i3-9350K only supports DDR4. The Xeon also offers 24 PCIe Gen 3 lanes from the CPU, compared to 16 on the i3. In a server chassis with dense memory configurations or extensive I/O needs, the Xeon D-1537's lower power envelope and broader memory compatibility could make it the more practical choice, even if it loses on raw Cinebench scores.

The i3-9350K also includes integrated UHD 630 graphics, which the Xeon D-1537 lacks entirely. For systems that do not use a discrete GPU, the i3 has a built-in display output, while the Xeon requires a separate graphics adapter.

Architecture Differences

The two processors come from different Intel microarchitectures and target different market segments. The Core i3-9350K is built on Coffee Lake, fabricated on a 14 nm process, and belongs to the Core i3 (Coffee Lake Refresh) generation. It uses the Intel Socket 1151 and has a die size of 126 mm². The Xeon D-1537 is based on Broadwell, specifically the Xeon D (Broadwell-DE) generation, also on a 14 nm process, but it uses the Intel BGA 1667 socket and has a substantially larger die at 246 mm². The Xeon's transistor count is listed at 3,200 million, while the i3's transistor count is not recorded.

Cache configurations differ significantly. Both processors share the same per-core L1 cache (64 KB per core) and L2 cache (256 KB per core). The L3 cache, however, is organized differently. The i3-9350K has an 8 MB shared L3 cache, while the Xeon D-1537 provides 1.5 MB per core. With 8 cores, that amounts to 12 MB total, but the per-core allocation means each core gets a dedicated slice rather than a common pool. This design choice reflects the Xeon's server orientation, where predictable per-core performance is valued over shared cache flexibility.

Memory support diverges as well. The i3-9350K supports DDR4 only, with a dual-channel memory bus and a recorded bandwidth of 38.4 GB/s. The Xeon D-1537 supports both DDR3 and DDR4, also with a dual-channel bus, but its memory bandwidth is not recorded in the database. Both processors support ECC memory, which is notable for the i3 given its desktop positioning.

PCIe connectivity differs: the i3-9350K provides 16 PCIe Gen 3 lanes from the CPU, while the Xeon D-1537 offers 24 lanes. This gives the Xeon more room for expansion in server workloads, though the i3's allocation is typical for a desktop part.

The i3-9350K has an unlocked multiplier, enabling overclocking, while the Xeon D-1537's multiplier is locked. The i3 also includes integrated UHD 630 graphics, whereas the Xeon has no integrated graphics at all. The i3's base clock is 4.00 GHz with a 4.60 GHz boost, while the Xeon's base clock is 1700.00 MHz with a 2.30 GHz boost, reflecting the i3's focus on high frequency and the Xeon's emphasis on efficiency and core density.

FAQ

Q: Which processor has a higher single-core score in Cinebench R23?

A: The Intel Core i3-9350K scores 911 in Cinebench R23 single-core, while the Intel Xeon D-1537 scores 893, a 2% advantage for the i3.

Q: How do the multi-core scores compare in Cinebench R20?

A: The Core i3-9350K scores 2711 in Cinebench R20 multi-core, versus 2657 for the Xeon D-1537, a 2% lead for the i3.

Q: Does the Xeon D-1537 have more cores than the Core i3-9350K?

A: Yes, the Xeon D-1537 has 8 cores and 16 threads, while the Core i3-9350K has 4 cores and 4 threads. Despite this, the i3-9350K wins every recorded multi-core benchmark.

Q: What is the power consumption difference between the two?

A: The Core i3-9350K has a TDP of 91 W, while the Xeon D-1537 has a TDP of 35 W, making the Xeon significantly more power-efficient.

Q: Do both processors support ECC memory?

A: Yes, both the Core i3-9350K and the Xeon D-1537 support ECC memory, which is unusual for a desktop part like the i3.

Q: Which processor has integrated graphics?

A: The Core i3-9350K includes Intel UHD 630 graphics, while the Xeon D-1537 has no integrated graphics and requires a separate GPU for display output.

Specification Differences

| Specification | Intel Core i3-9350K | Intel Xeon D-1537 |

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

| Cores | 4 | 8 |

| Threads | 4 | 16 |

| Base Clock | 4.00 GHz | 1700.00 MHz |

| Boost Clock | 4.60 GHz | 2.30 GHz |

| TDP | 91 W | 35 W |

| Socket | Intel Socket 1151 | Intel BGA 1667 |

| Architecture | Coffee Lake | Broadwell |

| Codename | Coffee Lake | Broadwell |

| Generation | Core i3 (Coffee Lake Refresh) | Xeon D (Broadwell-DE) |

| Process Node | 14 nm | 14 nm |

| Die Size | 126 mm² | 246 mm² |

| Transistors | Not recorded | 3,200 million |

| L1 Cache | 64 KB (per core) | 64 KB (per core) |

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

| L3 Cache | 8 MB (shared) | 1.5 MB (per core) |

| Memory Support | DDR4 | DDR3, DDR4 |

| Memory Bus | Dual-channel | Dual-channel |

| Memory Bandwidth | 38.4 GB/s | Not recorded |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 3, 24 Lanes (CPU only) |

| Integrated Graphics | UHD 630 | None |

| Market Segment | Desktop | Server/Workstation |

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

| Release Date | 2019-04-22 | 2015-10-31 |

| Launch MSRP | $184 | $470 |

| Multiplier Unlocked | Yes | No |

| Part Number | SRCZT | SR2GF |

The recorded data shows the Core i3-9350K as the faster processor in every benchmark, despite its lower core count and higher power draw. The Xeon D-1537 compensates with superior efficiency, a smaller socket footprint, broader memory support, and more PCIe lanes, making it a better fit for dense server deployments where power and I/O flexibility outweigh raw compute speed.