Intel Core i5-11400T

The Intel Core i5-11400T is a 6-core, 12-thread desktop processor from the Rocket Lake family, built on Intel’s 14 nm process. It fits the Intel Socket 1200 platform and is officially marked as end-of-life, having launched on 2021-03-15 with a launch MSRP of $182. Its benchmark profile places it at the 56th percentile among all CPUs, with an average benchmark score of 3312, putting it in a competitive mid-range position.

Platform and Compatibility

The i5-11400T uses the Intel Socket 1200 interface, which means it is compatible with motherboards built for that socket. As a Rocket Lake-S part, it pairs with 500-series chipsets, though the fact pack does not specify chipset details. The processor supports DDR4 memory in a dual-channel configuration, with a memory bandwidth of 51.2 GB/s. ECC memory is not supported, so this is not a platform for error-correcting memory workloads without external controllers.

PCIe connectivity includes Gen 4 with 20 lanes available from the CPU. This provides a modern high-bandwidth path for graphics cards and NVMe storage, though the exact lane distribution is not specified. The integrated graphics are UHD Graphics 730, which gives basic display output capability without a discrete GPU. The multiplier is locked, so overclocking via clock multiplier adjustment is not possible; any performance tuning would rely on base clock adjustments or motherboard settings, but the data does not confirm those methods.

Upgrade path considerations are limited by the socket’s lifecycle. Socket 1200 was associated with the 10th and 11th generation Core series, and since this chip is end-of-life, future upgrades would require a different socket. However, within the 11th gen lineup, this processor sits as a low-power variant, so users building a system now should verify motherboard BIOS compatibility for Rocket Lake. The 14 nm process node and 276 mm² die size are older design choices, but they do not affect compatibility directly.

How It Compares

The nearest rival by average score is the Intel Xeon E5-1660 v4, which scores 3313 versus the i5-11400T’s 3312, a delta of 0%. This means the two are statistically tied in aggregate performance. The Xeon is a server-class part, but the data shows no practical difference in average benchmark results, so for mixed workloads, the i5-11400T holds its own without the need for a workstation platform.

Against the Intel Core i3-12100T, the i5-11400T has an average score of 3312 versus 3309, a delta of 0.1% in favor of the i5. That is a negligible margin, meaning the two are effectively interchangeable in average performance. The i3-12100T has fewer cores (though not stated here), but the benchmark data suggests the i5-11400T’s extra threads do not translate into a meaningful average advantage in these tests.

Comparing to the AMD Ryzen 3 5300G, the i5-11400T leads with a 0.3% delta (3312 vs 3303). Again, this is within noise for most applications. The Ryzen part includes integrated graphics, but the data shows the i5-11400T edges ahead in aggregate scores, so for CPU-bound tasks, the Intel part is marginally stronger.

The AMD Ryzen 5 PRO 2600 also scores 3303, giving the i5-11400T the same 0.3% advantage. This is a older Ryzen part, and the performance parity indicates that the i5-11400T’s architecture compensates for any generational differences. None of these rivals are dramatically faster or slower; the i5-11400T sits in a tight cluster where all four processors are within 0.3% of each other.

Power and Thermals

The TDP is rated at 35 watts, which classifies this as a low-power processor. This is a significant reduction compared to standard desktop parts, and the data implies that cooling requirements are modest. A basic air cooler, even a stock low-profile unit, should be sufficient for typical operation. The base clock is 1300.00 MHz, which is low, but the boost clock reaches 3.70 GHz, so thermal headroom is used to push higher frequencies when needed.

Because the TDP is 35 watts, the heat output is limited. This makes the chip suitable for small form factor builds or systems with constrained cooling, such as compact desktops or all-in-one units. The 14 nm process is not the most efficient, but the low TDP cap keeps thermal density manageable. The data does not specify actual power consumption under load, but the TDP class points to a cooler tier that is inexpensive and quiet. For users who prioritize low noise or low heat, this is a strong fit, but those expecting high sustained multi-core performance should note that the boost clock of 3.70 GHz is shared across all cores, meaning all-core workloads will likely stay near the base clock or slightly above.

FAQ

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

A: No, ECC memory is not supported, so this processor is not suited for error-correcting memory configurations.

Q: What is the maximum memory bandwidth?

A: The dual-channel DDR4 configuration provides 51.2 GB/s of memory bandwidth.

Q: How many PCIe lanes does the CPU provide?

A: The CPU provides 20 PCIe Gen 4 lanes, which is the number available from the processor itself.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, so overclocking via multiplier changes is not possible.

Q: What integrated graphics does this processor include?

A: It includes UHD Graphics 730, which provides basic display output without a discrete GPU.

Q: When was this processor released?

A: The release date is 2021-03-15, and it is currently marked as end-of-life.

Who Should Consider It

For gaming, the single-core performance is moderate. The Cinebench R23 single-core score is 1570, and Geekbench single-core is 1597. These numbers are not top-tier, but they are sufficient for most current games, especially when paired with a discrete GPU. The low TDP means the processor will not create excessive heat in a gaming rig, but the 3.70 GHz boost clock limits peak performance in CPU-heavy titles. Gamers on a tight power budget or those building a quiet HTPC could find this suitable, but for high-refresh-rate gaming, the data suggests better options exist.

For content creation, the multi-core scores tell a clearer story. Cinebench R23 multi-core is 11127, and Cinebench R20 multi-core is 4673. These are respectable for a 35-watt part, but they lag behind higher-TDP 6-core processors. Video editing, 3D rendering, and batch processing will be slower than with a standard desktop chip, but the efficiency is a trade-off. Users who run light photo editing or occasional video renders will get acceptable performance without needing aggressive cooling.

For office and productivity workloads, this processor excels. The single-core Geekbench score of 1597 and Cinebench R15 single-core of 158 indicate strong responsiveness for everyday tasks like web browsing, document editing, and spreadsheet work. The 12 threads handle multitasking well, and the low power draw makes it ideal for always-on office PCs. The 56th percentile ranking versus all CPUs means it is better than the median CPU, so for typical office software, it will feel snappy.

Single-Thread vs Multi-Thread Behavior

The split between single-thread and multi-thread performance is clear from the benchmark data. In Cinebench R23, the single-core score is 1570, while the multi-core score is 11127, giving a ratio of roughly 7.1:1. This is typical for a 6-core, 12-thread part, but the low base clock of 1300.00 MHz means that single-thread performance relies heavily on the 3.70 GHz boost. The Geekbench single-core score of 1597 versus multi-core 5591 shows a similar pattern, with multi-core being about 3.5 times higher.

In real workloads, this means that tasks using one or two threads will see the full benefit of the boost clock, providing responsive performance for applications like web browsers, code compilers with low parallelism, or older games. However, when all cores are loaded, the processor likely settles into a lower frequency to stay within the 35-watt TDP, so multi-threaded throughput is constrained. The Cinebench R20 multi-core score of 4673 is about 7 times the single-core score of 659, which aligns with the core count, but that scaling is modest compared to higher-power parts.

For users, this translates to a chip that feels quick in daily use but shows its limits under sustained all-core loads. The average benchmark score of 3312 reflects this balance, sitting close to rivals like the Xeon E5-1660 v4, which also has a similar profile. Practically, the i5-11400T is best for workloads that are bursty or lightly threaded, where the boost clock can shine, rather than for long-running parallel computations that would push the power limit.