Intel Core i5-11400T vs Intel Xeon E-2236 Comparison

The Verdict

The Intel Xeon E-2236 is the clear performance winner in every recorded benchmark. Across all six head-to-head tests, the Xeon E-2236 beats the Core i5-11400T by a consistent margin of roughly 5.7% to 6%. The data shows no scenario in the database where the Core i5-11400T takes a win. If you need the highest possible scores in threaded and single-threaded workloads, the Xeon E-2236 is the pick.

However, the Core i5-11400T has its own role. It is a 35 W part, while the Xeon E-2236 is rated at 80 W. The Core i5-11400T also carries newer platform features: PCIe Gen 4 with 20 lanes, a smaller die size at 276 mm² versus 154 mm² (which reflects a more complex integrated design), and integrated UHD Graphics 730. The Xeon E-2236 uses PCIe Gen 3 with 16 lanes and UHD Graphics P630. If your priority is power efficiency and a more modern I/O set, the Core i5-11400T makes sense despite the performance deficit.

The Xeon E-2236 also supports ECC memory, which is a critical feature for workstation or server reliability. The Core i5-11400T does not support ECC. If data integrity matters more than raw speed, the Xeon E-2236 is the only one of the two that qualifies.

Both CPUs sit at the 54th percentile in the database, which indicates they are statistically similar in overall standing. The Xeon E-2236 has a higher average benchmark score (3410 versus 3309), but the delta is small in the context of the full CPU landscape. Choose the Xeon E-2236 for peak performance and ECC; choose the Core i5-11400T for lower power draw and PCIe Gen 4 connectivity.

Where Each One Wins

The Xeon E-2236 wins in every category that the database measures. That includes all six Cinebench tests, covering both single-core and multi-core performance. The largest single margin is 6% in Cinebench R15 single-core, where the Xeon E-2236 scores 167 versus 157 for the Core i5-11400T. The smallest margin is 5.7%, seen in Cinebench R15 multi-core and R20 single-core. The Xeon E-2236 also leads in R20 multi-core (4952 versus 4667) and R23 multi-core (11792 versus 11113).

The Core i5-11400T does not win any recorded benchmark. Its advantages are not in raw compute but in platform characteristics. It has a 35 W TDP, which is less than half of the Xeon E-2236's 80 W TDP. That makes it a better fit for compact, low-power builds where heat output is a concern. The Core i5-11400T also supports PCIe Gen 4 with 20 lanes, whereas the Xeon E-2236 is limited to PCIe Gen 3 with 16 lanes. For storage or GPU workloads that benefit from Gen 4 bandwidth, the Core i5-11400T offers a modern interface.

The Xeon E-2236 wins for memory reliability. It supports ECC memory, while the Core i5-11400T does not. That makes the Xeon E-2236 the logical choice for a workstation that must run long calculations without memory corruption. The Core i5-11400T is the logical choice for a quiet, efficient desktop that does not need ECC and can leverage Gen 4 devices.

Architecture Differences

The two processors come from different Intel families. The Core i5-11400T is part of the Core 11th Gen series, built on the Rocket Lake architecture. The Xeon E-2236 belongs to the Xeon E-2200 series, using the Coffee Lake architecture. Both are manufactured on Intel's 14 nm process, so the transistor density is similar, but the designs differ significantly.

The Core i5-11400T has a larger die at 276 mm², while the Xeon E-2236 has a smaller die at 154 mm². The Rocket Lake die includes more cache per core: 80 KB of L1 and 512 KB of L2 per core, versus 64 KB of L1 and 256 KB of L2 per core on the Coffee Lake part. Both share 12 MB of L3 cache, so the total cache hierarchy is close, but the Core i5-11400T has more private cache per core.

The Core i5-11400T has a base clock of 1300 MHz and a boost clock of 3.7 GHz. The Xeon E-2236 runs much higher clocks: 3.4 GHz base and 4.8 GHz boost. That clock advantage explains the consistent benchmark wins for the Xeon E-2236. The Core i5-11400T compensates with a 35 W TDP, which is far lower than the Xeon E-2236's 80 W TDP.

Memory bandwidth also differs. The Core i5-11400T supports 51.2 GB/s, while the Xeon E-2236 supports 42.7 GB/s. Both use dual-channel DDR4, but the Core i5-11400T has a wider memory pipe. The Core i5-11400T also features PCIe Gen 4 with 20 lanes, while the Xeon E-2236 uses PCIe Gen 3 with 16 lanes.

Integrated graphics differ as well. The Core i5-11400T includes UHD Graphics 730, while the Xeon E-2236 includes UHD Graphics P630. The Xeon E-2236 adds ECC memory support, which the Core i5-11400T lacks. The Xeon E-2236 targets the server and workstation segment, while the Core i5-11400T is a desktop part.

FAQ

Q: Which CPU is faster in single-core performance?

A: The Intel Xeon E-2236 wins all single-core tests. In Cinebench R15 single-core, it scores 167 versus 157 for the Core i5-11400T, a 6% lead. In R20 single-core, it scores 698 versus 658, a 5.7% lead. In R23 single-core, it scores 1664 versus 1569, a 5.7% lead.

Q: Does the Core i5-11400T support ECC memory?

A: No. The Core i5-11400T does not support ECC memory. The Xeon E-2236 does support ECC memory, which is a key feature for workstation and server reliability.

Q: What is the power consumption difference?

A: The Core i5-11400T has a TDP of 35 W, while the Xeon E-2236 has a TDP of 80 W. The Core i5-11400T draws significantly less power, making it suitable for low-power builds.

Q: Which CPU has better PCIe support?

A: The Core i5-11400T supports PCIe Gen 4 with 20 lanes. The Xeon E-2236 supports PCIe Gen 3 with 16 lanes. The Core i5-11400T offers newer and more PCIe bandwidth.

Q: Are the two CPUs comparable in overall performance ranking?

A: Both sit at the 54th percentile among all CPUs in the database. The Xeon E-2236 has a higher average benchmark score at 3410, while the Core i5-11400T averages 3309. The difference is small in the full CPU ranking.

Q: Which CPU should I choose for a multi-threaded workload?

A: The Xeon E-2236 wins all multi-core tests. In Cinebench R23 multi-core, it scores 11792 versus 11113 for the Core i5-11400T, a 5.8% lead. The Xeon E-2236 is the better choice for multi-threaded work if power draw is not a concern.

Head-to-Head Benchmarks

The database records six direct comparisons, and the Xeon E-2236 wins all of them. The margins are remarkably consistent, ranging from 5.7% to 6%. This uniformity suggests a clock-driven advantage: the Xeon E-2236 boosts to 4.8 GHz, while the Core i5-11400T boosts to 3.7 GHz.

Starting with Cinebench R15 multi-core, the Xeon E-2236 scores 1188, beating the Core i5-11400T's 1120 by 5.7%. The single-core version of R15 shows the widest gap: 167 versus 157, a 6% lead for the Xeon E-2236. That is the largest delta in the entire head-to-head set.

Cinebench R20 follows the same pattern. In multi-core, the Xeon E-2236 scores 4952, while the Core i5-11400T scores 4667, a 5.8% difference. In single-core, the Xeon E-2236 scores 698, and the Core i5-11400T scores 658, a 5.7% difference. The R23 results mirror this: multi-core 11792 versus 11113 (5.8%), single-core 1664 versus 1569 (5.7%).

The consistent deltas indicate that the Xeon E-2236 scales better in both single-threaded and multi-threaded tests. There is no workload category where the Core i5-11400T closes the gap. The Core i5-11400T's lower base clock of 1300 MHz forces it to rely heavily on boost, and even at 3.7 GHz, it cannot match the Xeon E-2236's 4.8 GHz peak.

For a builder deciding between these two, the benchmark data is unambiguous: the Xeon E-2236 is faster in every measured task. The Core i5-11400T's advantages are confined to platform features, not raw compute. If you prioritize benchmark scores, the Xeon E-2236 is the only choice.

Specification Differences

| Specification | Intel Core i5-11400T | Intel Xeon E-2236 |

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

| Cores / Threads | 6 / 12 | 6 / 12 |

| Base Clock | 1300 MHz | 3.4 GHz |

| Boost Clock | 3.7 GHz | 4.8 GHz |

| TDP | 35 W | 80 W |

| Socket | Intel Socket 1200 | Intel Socket 1151 |

| Architecture | Rocket Lake | Coffee Lake |

| Process Node | 14 nm | 14 nm |

| Die Size | 276 mm² | 154 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 512 KB (per core) | 256 KB (per core) |

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

| Memory Bandwidth | 51.2 GB/s | 42.7 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 4, 20 Lanes | Gen 3, 16 Lanes |

| Integrated Graphics | UHD Graphics 730 | UHD Graphics P630 |

| Market Segment | Desktop | Server/Workstation |

| Release Date | 2021-03-15 | 2019-05-28 |

| Launch MSRP | $182 | $284 |

The two CPUs share the same core and thread count, the same 14 nm process, and the same 12 MB of shared L3 cache. They diverge in every other major specification. The Xeon E-2236 runs at much higher clocks, draws more power, and supports ECC. The Core i5-11400T has a smaller power envelope, more cache per core, higher memory bandwidth, and PCIe Gen 4. The socket difference means they are not interchangeable: the Core i5-11400T uses Socket 1200, while the Xeon E-2236 uses Socket 1151.