Intel Core i5-13400T vs Intel Core i7-11700B Comparison

The Intel Core i7-11700B and Intel Core i5-13400T represent two distinct design philosophies from Intel: a mobile-oriented Tiger Lake-H chip against a low-power desktop Raptor Lake part. Benchmark data shows the older i7-11700B holds a consistent, narrow lead across all Cinebench tests, while the i5-13400T counters with a more modern platform, higher core count, and active production status. The average benchmark scores are nearly identical—5241 for the i7-11700B versus 5210 for the i5-13400T—placing both at the 60th percentile among all CPUs. This makes the choice less about raw performance and more about platform features, power constraints, and intended use case.

FAQ

Q: Which processor has the higher multi-core performance in Cinebench R23?

A: The Intel Core i7-11700B scores 18119 in Cinebench R23 multi-core, which is 6.4% ahead of the Intel Core i5-13400T’s 17029. The i7-11700B wins all six head-to-head benchmark comparisons, though the margins are consistently around 6%.

Q: How do the core counts differ between these two CPUs?

A: The i5-13400T has 10 cores and 16 threads, while the i7-11700B has 8 cores and 16 threads. Despite having two fewer physical cores, the i7-11700B still outperforms the i5-13400T in every recorded Cinebench test.

Q: What are the power consumption differences?

A: The i5-13400T has a TDP of 35 watts, while the i7-11700B has a TDP of 65 watts. This makes the i5-13400T significantly more power-efficient on paper, though benchmark scores do not reflect a performance penalty for the lower power draw.

Q: Do both processors support the same memory types?

A: No. The i7-11700B supports only DDR4 memory, while the i5-13400T supports both DDR4 and DDR5. The i7-11700B has a rated memory bandwidth of 51.2 GB/s, while the i5-13400T’s memory bandwidth is not specified in the data.

Q: Which CPU has a higher boost clock speed?

A: The i7-11700B boosts up to 4.80 GHz, compared to the i5-13400T’s 4.40 GHz. The i7-11700B also has a much higher base clock of 3.20 GHz versus the i5-13400T’s 1300.00 MHz.

Q: What is the difference in their market positioning and availability?

A: The i7-11700B is a mobile processor that is end-of-life, released in May 2021, while the i5-13400T is an active desktop processor released in January 2023. The i5-13400T has a launch MSRP of $221.

Where Each One Wins

The Intel Core i7-11700B wins decisively in raw compute benchmarks. Across all six Cinebench iterations (R15, R20, and R23, both single-core and multi-core), it posts a 6.4% advantage in multi-core tests and a 6.2% to 6.4% advantage in single-core tests. For workloads that are heavily threaded and scale with sustained CPU throughput—such as video rendering, 3D modeling, or batch photo processing—the i7-11700B’s higher clock speeds and larger 24 MB L3 cache deliver measurable gains. Its 4.80 GHz boost clock and 3.20 GHz base clock give it a clear frequency advantage over the i5-13400T.

The Intel Core i5-13400T wins in platform flexibility and efficiency. Its 10-core configuration (two more physical cores than the i7-11700B) provides additional parallel processing headroom for lightly threaded tasks that can spread across cores, even if the aggregate Cinebench scores are lower. The 35-watt TDP makes it suitable for compact, thermally constrained desktop builds where power draw is a priority. It also supports DDR5 memory, offering a modern upgrade path that the DDR4-only i7-11700B cannot match. The i5-13400T’s PCIe Gen 5 support (20 lanes) outpaces the i7-11700B’s PCIe Gen 4 (20 lanes), making it the better choice for future storage and GPU bandwidth.

Architecture Differences

The i7-11700B is built on Intel’s Tiger Lake architecture, specifically Tiger Lake-H, and uses a 10 nm process node. Its die size is 190 mm². The architecture is designed for mobile platforms, which is reflected in its Intel BGA 1787 socket and UHD Graphics (Xe-LP) integrated graphics. The L3 cache is 24 MB shared across 8 cores, and each core has 80 KB of L1 cache and 1.25 MB of L2 cache.

The i5-13400T uses Intel’s Raptor Lake architecture, specifically Raptor Lake-S, also on a 10 nm process node but with a larger 215 mm² die. It is a desktop part that fits the Intel Socket 1700. The integrated graphics are UHD Graphics 730. The L3 cache is 20 MB shared across 10 cores, with the same per-core L1 (80 KB) and L2 (1.25 MB) configurations. The architecture difference is significant: Tiger Lake-H is a monolithic mobile design, while Raptor Lake-S is a desktop design with a hybrid core layout that the data reflects through a higher core count but lower clock speeds.

The memory controller differs as well. The i7-11700B is limited to DDR4, while the i5-13400T supports both DDR4 and DDR5. The i7-11700B’s memory bandwidth is rated at 51.2 GB/s; the i5-13400T’s is not listed. PCIe support also differs, with the i5-13400T offering Gen 5 versus the i7-11700B’s Gen 4, both with 20 CPU lanes.

Specification Differences

The core specifications reveal a clear trade-off. The i7-11700B has 8 cores and 16 threads, a base clock of 3.20 GHz, and a boost clock of 4.80 GHz. The i5-13400T has 10 cores and 16 threads, but its base clock is dramatically lower at 1300.00 MHz, with a boost clock of 4.40 GHz. The TDP difference is substantial: 65 watts for the i7-11700B versus 35 watts for the i5-13400T.

Cache allocation also differs. The i7-11700B offers 24 MB of shared L3 cache, while the i5-13400T offers 20 MB. Both have identical per-core L1 (80 KB) and L2 (1.25 MB) caches. The i7-11700B uses the Intel BGA 1787 socket and is a mobile part; the i5-13400T uses the Intel Socket 1700 and is a desktop part. The i7-11700B is end-of-life with a release date of May 2021, while the i5-13400T is active with a release date of January 2023 and a launch MSRP of $221. The integrated graphics differ: UHD Graphics (Xe-LP) on the i7-11700B versus UHD Graphics 730 on the i5-13400T. Neither CPU has an unlocked multiplier, and both lack ECC memory support.

Head-to-Head Benchmarks

The Cinebench results are remarkably consistent. In Cinebench R15 multi-core, the i7-11700B scores 1826 against the i5-13400T’s 1716, a 6.4% win. The single-core R15 test shows a similar pattern: 257 versus 242, a 6.2% margin. Moving to Cinebench R20, the i7-11700B scores 7609 in multi-core and 1074 in single-core, while the i5-13400T scores 7152 and 1009, respectively—again a 6.4% difference in both.

Cinebench R23 reinforces the trend. The i7-11700B’s multi-core score of 18119 beats the i5-13400T’s 17029 by 6.4%. In single-core, the i7-11700B scores 2558 against 2404, also a 6.4% margin. The i5-13400T has one benchmark not shared by the i7-11700B: Geekbench multi-core (10227) and single-core (1899), but without a corresponding i7-11700B score, no comparison is possible.

The data shows the i7-11700B is uniformly faster across every comparable test, with margins hovering between 6.2% and 6.4%. This consistency suggests a clock-speed advantage rather than an architectural edge, as the i5-13400T’s additional two cores do not compensate for its significantly lower base clock and 0.4 GHz lower boost clock. In the nearest rivals list, the i7-11700B sits just 0.6% above the i5-13400T in average benchmark score (5241 versus 5210), confirming that the two are in the same performance class despite the i7-11700B’s benchmark wins. The i5-13400T, in turn, sits 0.6% below the i7-11700B in its own rival list, with the Intel Core i9-10850K and Intel Core i5-14401E surrounding both.