Intel Core i9-9900T vs Intel Xeon E-2236 Comparison

Head-to-Head Benchmarks

The benchmark comparison between the Intel Xeon E-2236 and the Intel Core i9-9900T is remarkably one-sided. Across all six Cinebench tests recorded in the database, the Xeon E-2236 wins every single matchup. The Core i9-9900T does not secure a single victory in any of the head-to-head tests.

The most significant margin appears in the Cinebench R15 multicore test, where the Xeon E-2236 scores 1188 against the i9-9900T's 1117. That represents a 6.4% advantage for the Xeon. The same 6.4% delta appears in the R15 singlecore test, with the Xeon posting 167 versus 157 for the i9-9900T.

Moving to Cinebench R20, the pattern holds. The Xeon E-2236 delivers 4952 in multicore, while the i9-9900T manages 4658, a 6.3% gap. In singlecore, the Xeon's 698 beats the i9-9900T's 657, again by 6.2%. The Cinebench R23 results show the same story: the Xeon scores 11792 multicore and 1664 singlecore, compared to 11091 and 1565 for the i9-9900T, with deltas of 6.3% in both cases.

This consistency across all three Cinebench generations is striking. The Xeon E-2236 maintains a steady 6.2% to 6.4% lead in every test, regardless of whether the workload is single-threaded or multi-threaded. It is not a case of one chip winning in one type of workload and losing in another; the Xeon simply dominates across the board.

The average benchmark scores tell a slightly different story. The i9-9900T has an average benchmark score of 3499, placing it in the 55th percentile of all CPUs. The Xeon E-2236 averages 3410, sitting at the 54th percentile. Despite losing every head-to-head test, the i9-9900T actually has a higher average score once its Geekbench results are included. This suggests the i9-9900T's performance profile is broader, but the Xeon is specifically stronger in the Cinebench workloads that were directly compared.

Rival comparisons in the database show both chips sit near similar competitors. The Xeon E-2236 is closest to the Intel Xeon E-2146G with a 0% delta, and the AMD Ryzen Embedded V3C18I at 0.1% behind. The i9-9900T's nearest rival is the Intel Xeon E-2176G at -0.1%, with the Xeon E5-1680 v4 at 0.2% ahead. These positions reinforce that both processors occupy a similar performance tier overall, yet the direct comparison favors the Xeon.

Architecture Differences

Both processors are built on Intel's 14 nm process node and share the Coffee Lake architecture family. The Xeon E-2236 uses the Coffee Lake-S WS codename from the Xeon E-2200 series, while the i9-9900T uses Coffee Lake-R from the Core i9 Coffee Lake Refresh generation. This makes them close relatives, but with meaningful differences in configuration.

Core counts differ substantially. The Xeon E-2236 has 6 cores and 12 threads, while the i9-9900T has 8 cores and 16 threads. The i9-9900T brings two additional physical cores to the table, which is notable given that it still loses in the multi-threaded Cinebench tests. Clock speeds explain this outcome: the Xeon runs at a base clock of 3.40 GHz and boosts to 4.80 GHz, while the i9-9900T operates at a much lower 2.10 GHz base and 4.40 GHz boost. The Xeon's higher sustained clocks compensate for its core deficit in these workloads.

Cache hierarchies also differ. Both processors have 64 KB of L1 cache per core and 256 KB of L2 cache per core. The shared L3 cache, however, is larger on the i9-9900T at 16 MB versus 12 MB on the Xeon E-2236. This extra 4 MB of L3 cache helps the i9-9900T feed its additional cores, though it does not translate into a win in the recorded benchmarks.

Die size reflects the core difference. The Xeon E-2236 measures 154 mm², while the i9-9900T is larger at 180.3 mm². Both use the same Intel Socket 1151, making them physically interchangeable in compatible motherboards.

Thermal design power is a major differentiator. The Xeon E-2236 is rated at 80 W TDP, while the i9-9900T sips just 35 W. This makes the i9-9900T a much more power-efficient part, designed for compact or silent systems where heat output is a primary concern. The Xeon, with its higher TDP, is built for sustained workstation performance.

Memory support is identical in bandwidth: both support DDR4 in dual-channel mode with 42.7 GB/s. However, ECC memory is supported only on the Xeon E-2236. The i9-9900T lacks ECC support entirely. Integrated graphics also differ: the Xeon uses UHD Graphics P630, while the i9-9900T uses UHD Graphics 630.

PCIe connectivity is the same on both: Gen 3 with 16 lanes from the CPU. Neither processor has an unlocked multiplier, so overclocking is not an option for either.

The market segments diverge. The Xeon E-2236 is classified as Server/Workstation, while the i9-9900T is a Desktop part. This positioning aligns with their feature sets: ECC support and higher clocks for the Xeon, lower power and more cores for the i9-9900T.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The Xeon E-2236 wins every multi-core test. In Cinebench R23 multicore, it scores 11792 versus 11091 for the i9-9900T, a 6.3% advantage. The same pattern appears in R20 (4952 vs 4658) and R15 (1188 vs 1117).

Q: Does the i9-9900T's higher core count help it in any benchmark?

A: No. Despite having 8 cores and 16 threads versus 6 cores and 12 threads on the Xeon, the i9-9900T loses all six head-to-head Cinebench tests. The Xeon's higher clock speeds (4.80 GHz boost versus 4.40 GHz) offset the core deficit.

Q: Which processor supports ECC memory?

A: The Xeon E-2236 supports ECC memory. The i9-9900T does not. This is a critical distinction for workstation or server builds where data integrity is paramount.

Q: How do the power requirements compare?

A: The Xeon E-2236 has a TDP of 80 W, while the i9-9900T is rated at just 35 W. The i9-9900T is designed for much lower power consumption and heat output.

Q: Are these processors compatible with the same motherboards?

A: Yes, both use the Intel Socket 1151. However, the Xeon's ECC support and workstation positioning may require a motherboard that explicitly supports ECC memory, which is not guaranteed on all Socket 1151 boards.

Q: Which chip has a larger cache?

A: The i9-9900T has 16 MB of shared L3 cache, while the Xeon E-2236 has 12 MB. Both have identical L1 and L2 cache per core (64 KB and 256 KB respectively).

Specification Differences

| Specification | Intel Xeon E-2236 | Intel Core i9-9900T |

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

| Cores | 6 | 8 |

| Threads | 12 | 16 |

| Base Clock | 3.40 GHz | 2.10 GHz |

| Boost Clock | 4.80 GHz | 4.40 GHz |

| TDP | 80 W | 35 W |

| Codename | Coffee Lake-S WS | Coffee Lake-R |

| Generation | Xeon E (Coffee Lake) | Core i9 (Coffee Lake Refresh) |

| Die Size | 154 mm² | 180.3 mm² |

| L3 Cache | 12 MB (shared) | 16 MB (shared) |

| ECC Memory | Yes | No |

| Integrated Graphics | UHD Graphics P630 | UHD Graphics 630 |

| Market Segment | Server/Workstation | Desktop |

| Release Date | 2019-05-28 | 2019-04-22 |

| Launch MSRP | $284 | $423 |

| Part Number | SRF7G | SRG1B |

The two chips share their socket, process node (14 nm), memory support (DDR4 dual-channel), memory bandwidth (42.7 GB/s), PCIe configuration (Gen 3, 16 lanes), and locked multipliers. The differences are concentrated in core count, clocks, power, cache, ECC, and market positioning.

The Verdict

The data clearly favors the Intel Xeon E-2236 for raw performance. It wins every head-to-head benchmark by a consistent margin of roughly 6.3%, and it does so with fewer cores. The explanation is straightforward: the Xeon's base clock of 3.40 GHz and boost of 4.80 GHz are dramatically higher than the i9-9900T's 2.10 GHz base and 4.40 GHz boost. For anyone who prioritizes Cinebench-style rendering or single-threaded responsiveness, the Xeon is the stronger choice.

The i9-9900T, however, has its own compelling argument. Its 35 W TDP makes it a far more efficient processor, suitable for systems where power draw and heat are limiting factors. It also offers two additional cores and 16 MB of L3 cache, which may benefit workloads not captured in these specific benchmarks. Its higher average benchmark score (3499 versus 3410) suggests it has broader strengths beyond the Cinebench suite.

ECC memory support is a decisive factor for certain buyers. The Xeon E-2236's ECC capability makes it fit for server or workstation duty where memory errors are unacceptable. The i9-9900T cannot be used in such environments.

The launch MSRP of the Xeon E-2236 is $284, while the i9-9900T launched at $423. Both processors are end-of-life, so current availability and pricing may vary.

Where Each One Wins

Choose the Intel Xeon E-2236 if:

• You need maximum performance in Cinebench workloads. It wins all six head-to-head tests with margins between 6.2% and 6.4%.
• Single-threaded speed is critical. Its 4.80 GHz boost clock delivers 167 in Cinebench R15 singlecore versus 157 for the i9-9900T.
• ECC memory support is required for data integrity in workstation or server applications.
• You prefer a smaller die (154 mm²) and a more compact physical footprint.
• Your workload benefits from higher sustained clock speeds rather than a larger core count.

Choose the Intel Core i9-9900T if:

• Power efficiency is the top priority. Its 35 W TDP is less than half of the Xeon's 80 W.
• You need more physical cores (8 versus 6) for workloads that scale with core count, even if the specific Cinebench tests do not show an advantage.
• A larger L3 cache (16 MB versus 12 MB) could benefit your particular use case.
• You are building a desktop system where the lower power envelope enables quieter cooling solutions.
• The overall average benchmark score (3499, 55th percentile) suggests slightly better all-around performance in the database's broader test set.

The Xeon E-2236 is the performance leader in direct comparison. The i9-9900T is the efficiency pick with a core-count advantage. The right choice depends entirely on whether your system prioritizes raw speed or power economy.