Intel Core i3-9100T vs Intel Xeon E3-1240L v5 Comparison

# Intel Core i3-9100T vs Intel Xeon E3-1240L v5

The benchmark data presents an unusually one-sided comparison. Across every single test in the head-to-head suite, the Intel Xeon E3-1240L v5 outperforms the Intel Core i3-9100T, despite the latter being a newer Coffee Lake part. The Xeon wins all six benchmarks with consistent margins hovering around 14%, while the i3-9100T's average benchmark score of 1620 edges out the Xeon's 1609 by a mere 0.7% — a discrepancy worth investigating.

Head-to-Head Benchmarks

The Cinebench results tell a clear story of sustained Xeon dominance. In Cinebench R15 multicore, the Xeon E3-1240L v5 scores 560 against the i3-9100T's 482, a 13.9% advantage. The single-core R15 test shows a similar pattern: 78 versus 67, a 14.1% gap. This consistency is striking — the Xeon leads by nearly identical percentages across both single-threaded and multi-threaded workloads.

Moving to Cinebench R20, the margins tighten slightly but remain decisive. The Xeon posts 2336 in multicore versus the i3's 2010, a 14% lead. In single-core R20, the Xeon's 329 surpasses the i3's 283 by exactly 14%. The R23 results maintain this trend: 5564 versus 4788 in multicore (13.9% gap) and 785 versus 675 in single-core (14% gap).

The Geekbench results, available only for the i3-9100T in the data pack, show the i3 achieving 3443 in multicore and 1215 in single-core. Without corresponding Xeon scores, these numbers serve as a reference point — the i3's average benchmark score of 1620 places it in the 39th percentile of all CPUs, identical to the Xeon's percentile ranking.

What makes this sweep particularly notable is the Xeon's lower power envelope. The Xeon carries a 25W TDP against the i3's 35W, yet delivers superior performance in every measured category. The deltaPct values are remarkably uniform, ranging from -13.9% to -14.1% across all six tests, suggesting a fundamental architectural advantage rather than workload-specific strengths.

Where Each One Wins

The Xeon E3-1240L v5 claims victory in every benchmark category. In single-core workloads, where the i3's higher clock speeds might be expected to help, the Xeon still leads by 14%. The i3-9100T's base clock of 3.10 GHz and boost clock of 3.70 GHz are substantially higher than the Xeon's 2.10 GHz and 3.20 GHz, yet the Xeon's architecture compensates for the frequency deficit.

Multi-threaded workloads favor the Xeon even more decisively. With 8 threads versus the i3's 4, the Xeon's hyper-threading capability provides a clear throughput advantage. The Cinebench R23 multicore score of 5564 versus 4788 represents a 776-point difference, the largest absolute gap in the entire comparison.

The only area where the i3-9100T holds any statistical edge is in the aggregate averages. Its average benchmark score of 1620 slightly exceeds the Xeon's 1609, though this difference is within 0.7% and likely reflects the inclusion of Geekbench scores in the i3's average that aren't present in the Xeon's dataset. No benchmark in the head-to-head suite shows a win for the i3.

Architecture Differences

The architectural split is significant. The i3-9100T is built on Coffee Lake, specifically the Coffee Lake Refresh generation, while the Xeon E3-1240L v5 uses the Skylake-DT architecture. Both are fabricated on Intel's 14 nm process, but the Xeon's Skylake design incorporates 1,750 million transistors, a figure not listed for the i3.

Cache configurations differ meaningfully. Both processors share 64 KB of L1 cache and 256 KB of L2 cache per core, but the L3 cache diverges: the i3 offers 6 MB shared, while the Xeon provides 8 MB shared. This 2 MB difference could partially explain the Xeon's consistent performance advantage, as larger shared cache reduces memory access latency.

Die sizes are nearly identical — the i3 measures 126 mm² versus the Xeon's 122 mm² — yet the Xeon packs more transistors into a slightly smaller area, indicating a denser design. The i3 includes integrated UHD Graphics 630, while the Xeon has no integrated graphics at all, a notable feature divergence that affects system design flexibility.

Both CPUs support ECC memory, which is expected for the Xeon's server/workstation positioning but noteworthy for the i3's desktop market segment. The memory controller differs: the i3 supports DDR4 only, while the Xeon supports both DDR3 and DDR4. Memory bandwidth also favors the i3 slightly at 38.4 GB/s versus the Xeon's 34.1 GB/s.

Specification Differences

The most obvious specification gap is thread count. The i3-9100T provides 4 cores and 4 threads, while the Xeon E3-1240L v5 offers 4 cores and 8 threads. This doubling of thread count is likely the primary driver of the Xeon's multicore performance advantage.

Clock speeds tell the opposite story. The i3's base clock of 3.10 GHz and boost clock of 3.70 GHz are significantly higher than the Xeon's 2.10 GHz base and 3.20 GHz boost. Despite this 1.0 GHz base clock disadvantage, the Xeon still outperforms the i3 in single-core tests — a counterintuitive result that suggests architectural efficiency differences.

TDP ratings favor the Xeon at 25W versus the i3's 35W. This lower power draw, combined with higher performance, makes the Xeon particularly interesting for power-constrained environments. Release dates differ by nearly three years: the i3 launched in August 2018, while the Xeon debuted in October 2015. Both are now end-of-life products.

The Xeon's launch MSRP was $278, while the i3's was $122. Memory support differs as noted: DDR4 only for the i3 versus dual DDR3/DDR4 support for the Xeon. PCIe capabilities are identical (Gen 3, 16 lanes), and both use Socket 1151 with locked multipliers. The i3's part number is SRCZX; the Xeon's is SR2LN.

FAQ

Q: Why does the Xeon E3-1240L v5 beat the i3-9100T in single-core tests despite having lower clock speeds?

A: The Xeon scores 78 in Cinebench R15 single-core versus the i3's 67, a 14.1% advantage, even though the i3's base clock is 3.10 GHz versus the Xeon's 2.10 GHz. The data suggests the Skylake architecture's efficiency per clock cycle exceeds that of Coffee Lake, though the exact IPC metrics aren't provided.

Q: Is the Xeon's 8-thread advantage the main reason for its multicore wins?

A: Likely, yes. The Xeon provides 8 threads versus the i3's 4, and its multicore scores show consistent 13.9-14% leads across Cinebench R15, R20, and R23. The 8 MB shared L3 cache, compared to the i3's 6 MB, may also contribute.

Q: Which CPU has the lower power consumption?

A: The Xeon E3-1240L v5 has a 25W TDP, while the i3-9100T has a 35W TDP. The Xeon achieves higher performance while consuming less power, making it more efficient per watt based on the available specifications.

Q: Do both processors support ECC memory?

A: Yes, both the i3-9100T and the Xeon E3-1240L v5 list ECC memory support as true. However, the i3 supports only DDR4, while the Xeon supports both DDR3 and DDR4.

Q: How do their average benchmark scores compare?

A: The i3-9100T has an average benchmark score of 1620, while the Xeon scores 1609 — a 0.7% difference in the i3's favor. Both rank in the 39th percentile of all CPUs. This slight i3 edge may reflect the Geekbench scores included only in its dataset.

Q: Why does the Xeon have no integrated graphics?

A: The Xeon E3-1240L v5 lists integrated graphics as null, whereas the i3-9100T includes UHD Graphics 630. This is consistent with the Xeon's server/workstation market segment, where discrete GPUs are typically used.

The Verdict

The data is unambiguous: the Intel Xeon E3-1240L v5 is the superior performer in every benchmark category measured. Its 6-0 sweep across Cinebench tests, with margins consistently around 14%, demonstrates a clear and uniform advantage. The Xeon achieves this while consuming 10W less power (25W versus 35W TDP), making it the more efficient choice for workloads where performance per watt matters.

However, the i3-9100T is not without merit. Its higher clock speeds (3.10 GHz base, 3.70 GHz boost) and slightly higher memory bandwidth (38.4 GB/s versus 34.1 GB/s) make it a capable desktop processor. Its integrated UHD Graphics 630 provides a complete solution without a discrete GPU, which the Xeon cannot offer. The i3's lower launch MSRP of $122, compared to the Xeon's $278, also positioned it differently in the market.

For users prioritizing raw performance, especially in multi-threaded applications that can leverage 8 threads, the Xeon E3-1240L v5 is the clear choice from the benchmark data. Its consistent 14% lead across all Cinebench versions suggests a mature, efficient architecture. The Xeon's 8 MB L3 cache and Skylake design provide a performance ceiling that the i3's Coffee Lake architecture cannot match, despite the i3's newer release date.

For desktop users who value integrated graphics and higher clock speeds for lightly threaded tasks, the i3-9100T offers a different trade-off. Its 39th percentile ranking matches the Xeon's, and its average benchmark score of 1620 slightly exceeds the Xeon's 1609. Yet in every direct head-to-head comparison, the Xeon wins. The data points to the Xeon as the better all-around processor, with the i3 appealing primarily to builds requiring integrated graphics and lower cost.