Intel Core i3-9100 vs Intel Xeon E5-2637 v3 Comparison

The Verdict

The database comparison between the Intel Core i3-9100 and the Intel Xeon E5-2637 v3 is unusually one-sided. Across every recorded Cinebench test, the Xeon E5-2637 v3 wins outright, taking all six head-to-head benchmark comparisons. The i3-9100, by contrast, records zero wins. If you are building a system around pure CPU compute performance as measured by Cinebench, the Xeon E5-2637 v3 is the clear choice.

That said, the data does not favor the i3-9100 in any benchmark. The Xeon leads by 8.3% in every Cinebench R15, R20, R23, and single-core test except for R15 single-core, where it leads by 9.2%. Even in single-core R23, the Xeon holds an 8.3% advantage. The i3-9100's higher base clock of 3.60 GHz and boost clock of 4.20 GHz do not translate into any recorded benchmark win.

The verdict is straightforward: the Xeon E5-2637 v3 is the better performer in every measured scenario. The i3-9100 is not the pick for performance, but it remains a viable option for those needing a desktop processor with integrated graphics, a lower TDP, and ECC memory support. The Xeon, meanwhile, is the one to choose for multi-threaded workloads, given its 4 cores and 8 threads versus the i3's 4 cores and 4 threads, and its 15 MB shared L3 cache versus 6 MB. The Xeon's average benchmark score of 1773 places it at the 41st percentile, while the i3-9100 sits at the 42nd percentile, but the head-to-head deltas tell the real story.

The i3-9100's nearest rivals include the Intel Core i3-9320 at a delta of -0.1% and the AMD Ryzen 5 PRO 4650U at -0.2%, showing it trades blows with those. The Xeon's rivals, such as the Intel Xeon E5-4610 v3 at -0.2% and AMD Ryzen 3 PRO 1300 at -0.3%, suggest it sits in a similar performance tier. But when compared directly to each other, the Xeon consistently outpaces the i3-9100 by roughly 8.3% across the board, a margin too uniform to ignore.

No one should pick the i3-9100 based on benchmark wins; there are none. The Xeon E5-2637 v3, despite being an older design from 2014 and nearly four years older than the i3-9100's 2018 release, still delivers higher scores. For a PC builder prioritizing Cinebench performance, the Xeon E5-2637 v3 is the only data-backed selection.

Where Each One Wins

The Xeon E5-2637 v3 wins in every use case that the benchmarks cover. Multi-threaded workloads, represented by Cinebench R15, R20, and R23 multicore tests, go to the Xeon by 617, 2574, and 6130 versus 566, 2361, and 5622 for the i3-9100. Single-threaded tasks, shown by R15, R20, and R23 single-core results, also go to the Xeon with 87, 363, and 865 versus 79, 333, and 793. There is no scenario in the recorded data where the i3-9100 comes out ahead, not even in single-core R15 where one might expect its 4.20 GHz boost to help.

The i3-9100's wins are absent, so its niche lies outside the database's measured tests. It has UHD Graphics 630 integrated, which the Xeon lacks entirely, making the i3-9100 the pick for systems needing a CPU with onboard graphics output and no discrete GPU. It also features a lower TDP of 65 W versus the Xeon's 135 W, and a smaller die size of 126 mm² versus 356 mm², though TDP differences are qualitative here. The Xeon counters with a larger L3 cache, double the memory bandwidth at 68.3 GB/s quad-channel DDR4 versus 38.4 GB/s dual-channel, ECC memory support on both, and more PCIe lanes: 40 lanes Gen 3 CPU-only, making it suited for server or workstation deployments.

For workloads like rendering or scientific computing that scale with threads, the Xeon's 8 threads and 15 MB L3 cache give it an edge that shows up in the 8.3% margins. The i3-9100, with its 6 MB L3 cache and 4 threads, trails by a consistent margin in every test. If the workload fits within the i3's lower memory bandwidth and smaller cache, the Xeon's quad-channel interface and larger cache still dominate in the recorded Cinebench scores. The Xeon wins; the i3 has no recorded wins to claim.

The Xeon also wins in terms of raw performance longevity: it was released in 2014 with a launch MSRP of $996, while the i3 came later in 2018 with a launch MSRP of $122. Despite the price difference, the Xeon still outperforms in all benchmarks. The i3's single-core R23 score of 793 is 8.3% lower than the Xeon's 865. The Xeon's R20 single-core of 363 beats the i3's 333 by the same 8.3%. No use case in the data favors the i3.

Architecture Differences

The two processors come from different Intel architecture families. The i3-9100 uses Coffee Lake, built on a 14 nm process node, with a die size of 126 mm² and a Core i3 generation label. The Xeon E5-2637 v3 uses Haswell-EP architecture, built on a 22 nm process node, with a die size of 356 mm² and a transistor count of 2,600 million. These process nodes differ, with the i3 on a smaller node and the Xeon using a larger, older node with substantially more die area.

Core counts are identical at 4 cores each, but thread counts differ: the i3 has 4 threads, while the Xeon has 8 threads, meaning the Xeon supports Hyper-Threading. The i3's base clock is 3.60 GHz and boost is 4.20 GHz, while the Xeon's base is 3.50 GHz and boost is 3.70 GHz. The i3 has a higher boost clock, but the Xeon's 8 threads compensate in multi-threaded tests. The Xeon's L3 cache is 15 MB shared versus 6 MB shared on the i3, with the L1 and L2 cache sizes identical at 64 KB and 256 KB per core. The Xeon's larger cache aligns with its server heritage.

Memory support: both support DDR4, but the i3 uses a dual-channel bus with 38.4 GB/s bandwidth, while the Xeon uses a quad-channel bus with 68.3 GB/s bandwidth. Both support ECC memory, a notable feature for the i3 in the desktop segment. PCIe lanes differ: the i3 has Gen 3, 16 lanes CPU-only, while the Xeon has Gen 3, 40 lanes CPU-only, giving the Xeon far more expansion capability. The i3 includes UHD Graphics 630 integrated graphics; the Xeon has none, so a discrete GPU is mandatory for the Xeon.

Sockets differ: the i3 uses Intel Socket 1151, while the Xeon uses Intel Socket 2011-3. TDP also differs: the i3 is 65 W, the Xeon is 135 W, reflecting the Xeon's larger die and server focus. The Xeon was released in 2014, the i3 in 2018, and both are end-of-life products. The Xeon's transistor count of 2,600 million and die size of 356 mm² indicate a far more complex chip, while the i3's 126 mm² die is smaller and denser on 14 nm.

The architectures drive the benchmark results: the Xeon's 8 threads and 15 MB L3 cache power its wins, while the i3's higher clocks and integrated graphics serve desktop needs. The Xeon's quad-channel memory with 68.3 GB/s bandwidth and 40 PCIe lanes target workstation use, whereas the i3's dual-channel 38.4 GB/s and 16 lanes suit mainstream builds. Both are Intel, both support ECC, but the Xeon is the server-grade part.

FAQ

Q: Which CPU wins in multi-core performance?

A: The Intel Xeon E5-2637 v3 wins all multi-core tests. In Cinebench R15 multicore, it scores 617 versus 566 for the i3-9100, a delta of -8.3%. In R20 multicore, it scores 2574 versus 2361, and in R23 multicore, 6130 versus 5622.

Q: Does the i3-9100 win any benchmark against the Xeon?

A: No. The database records zero wins for the i3-9100 across all six head-to-head Cinebench tests, with the Xeon winning every one.

Q: What are the thread differences between the two?

A: The i3-9100 has 4 cores and 4 threads, while the Xeon E5-2637 v3 has 4 cores and 8 threads. This gives the Xeon a multi-threading advantage that shows in its benchmark scores.

Q: Which CPU has integrated graphics?

A: The Intel Core i3-9100 includes UHD Graphics 630, while the Intel Xeon E5-2637 v3 has no integrated graphics, requiring a discrete GPU.

Q: How do the memory bandwidths compare?

A: The i3-9100 uses dual-channel DDR4 with 38.4 GB/s bandwidth, while the Xeon uses quad-channel DDR4 with 68.3 GB/s bandwidth. Both support ECC memory.

Q: What is the single-core performance gap?

A: In Cinebench R23 single-core, the Xeon scores 865 versus 793 for the i3, an 8.3% lead. In R15 single-core, the Xeon scores 87 versus 79, a 9.2% lead.

Head-to-Head Benchmarks

The head-to-head data shows a clean sweep for the Xeon E5-2637 v3. In Cinebench R15 multicore, the Xeon scores 617 against the i3-9100's 566, a delta of -8.3%. This is the largest absolute gap in the R15 multi test. In Cinebench R15 single-core, the Xeon scores 87 versus 79, with a delta of -9.2%, the steepest single-core percentage gap in the comparison. These two tests set the tone: the Xeon leads in both, and the margin is consistent.

Moving to Cinebench R20, the Xeon takes multicore with 2574 versus 2361, again an 8.3% delta, and single-core with 363 versus 333, also 8.3%. The pattern holds in Cinebench R23: multicore goes to the Xeon at 6130 versus 5622, an 8.3% delta, and single-core at 865 versus 793, an 8.3% delta. Across all tests, the delta is almost uniformly 8.3%, except for R15 single-core at 9.2%, showing the Xeon's advantage is steady and not workload-specific.

The biggest win for the Xeon in absolute score difference is Cinebench R23 multicore, where it leads by 508 points (6130 minus 5622). The biggest percentage win is Cinebench R15 single-core at 9.2%. The i3-9100's best showing relative to the Xeon is still a loss: in every test, it trails by at least 8.3%. There is no test where the i3's higher boost clock of 4.20 GHz overcomes the Xeon's 3.70 GHz, because the Xeon's 8 threads and larger cache compensate in all recorded Cinebench runs.

The i3-9100's average benchmark score is 1806 against the Xeon's 1773, but that average includes Geekbench scores from the i3 that the Xeon lacks in the head-to-head set. In the direct comparison, the Xeon wins all six tests. The i3's nearest rivals include the Core i3-9320 at -0.1% delta and the Core i5-6600K at -0.5%, while the Xeon's include the Xeon E5-4610 v3 at -0.2% and the Core i7-4870HQ at 0.2%. These rival deltas show both CPUs sit in similar tiers, but the direct head-to-head favors the Xeon.

No benchmark favors the i3. The Xeon's wins are decisive and repeatable across every Cinebench version, making it the superior choice for compute-heavy tasks. The i3's single-core R15 loss of 79 versus 87 is particularly telling given its 4.20 GHz boost, indicating architecture and thread advantages matter more than raw clock speed in this matchup.

Specification Differences

The core specifications differ in several key areas. The i3-9100 has 4 cores and 4 threads, while the Xeon E5-2637 v3 has 4 cores and 8 threads. Base clocks: the i3 runs at 3.60 GHz base and 4.20 GHz boost, the Xeon at 3.50 GHz base and 3.70 GHz boost. The i3's TDP is 65 W versus the Xeon's 135 W. The i3 uses Intel Socket 1151, the Xeon uses Intel Socket 2011-3.

Cache configurations: the i3 has 64 KB L1 per core and 256 KB L2 per core, identical to the Xeon, but the i3's L3 is 6 MB shared versus the Xeon's 15 MB shared. Process nodes: the i3 is 14 nm with a 126 mm² die, the Xeon is 22 nm with a 356 mm² die and 2,600 million transistors. Memory: the i3 uses dual-channel DDR4 at 38.4 GB/s bandwidth, the Xeon uses quad-channel DDR4 at 68.3 GB/s bandwidth. PCIe: the i3 has Gen 3, 16 lanes CPU-only lanes, the Xeon has Gen 3, 40 lanes CPU-only.

Integrated graphics: the i3 has UHD Graphics 630 integrated; the Xeon has none. ECC memory support is present on both CPUs. Market segments: the i3 is a Desktop part, the Xeon is a Server/Workstation part. Production status is end-of-life for both. Release dates differ by about four years, with the i3 in 2018 and the Xeon in 2014. The i3's launch MSRP was $122, the Xeon's launch MSRP was $996. The i3's part number is SRCZV, the Xeon's is SR202. Both have locked multipliers and neither is unlocked. The Xeon's transistor count and die size are not listed for the i3, but the Xeon's specifications include 2,600 million transistors and 2,600 million transistors only for the Xeon. No vCache3D is listed for either CPU.