Intel Core i5-10400H vs Intel Core i7-5775C Comparison

FAQ

Q: Which processor wins the most head-to-head benchmark comparisons?

A: The Intel Core i5-10400H wins 7 of the 8 recorded head-to-head benchmarks. The only test where the Intel Core i7-5775C comes out ahead is Geekbench single-core, where it scores 1441 versus 1413, a delta of 1.9 percent in its favor.

Q: How do the two processors compare in average benchmark score?

A: The Intel Core i5-10400H has an average benchmark score of 2303, while the Intel Core i7-5775C averages 2224. Both processors sit at the 47th percentile among all CPUs in the database.

Q: What are the closest rivals to each processor according to the database?

A: For the Intel Core i5-10400H, the nearest rival is the Intel Core i7-8809G with an average score of 2307, a delta of 0.2 percent. For the Intel Core i7-5775C, the nearest rival is the Intel Core i7-8559U with an average score of 2225, a delta of 0 percent.

Q: Do both processors have the same core and thread configuration?

A: Yes, both the Intel Core i5-10400H and the Intel Core i7-5775C have 4 cores and 8 threads. They also share the same per-core L1 cache of 64 KB, the same per-core L2 cache of 256 KB, and the same shared L3 cache of 6 MB.

Q: What memory types does each processor support?

A: The Intel Core i5-10400H supports both DDR3 and DDR4 memory, while the Intel Core i7-5775C supports only DDR3. Both use a dual-channel memory bus.

Q: Are both processors still in active production?

A: Yes, both the Intel Core i5-10400H and the Intel Core i7-5775C have a production status of "Active" in the database. The Core i5-10400H was released in April 2020, while the Core i7-5775C was released in May 2015.

Architecture Differences

The Intel Core i5-10400H is built on the Comet Lake-H architecture, part of Intel's Core 10th Gen family, while the Intel Core i7-5775C belongs to the Broadwell architecture and is listed as a Core i7 (Broadwell) generation part. Both are manufactured on Intel's 14 nm process node and produced by Intel's own foundry. The process node is the same, but the microarchitectural lineage differs substantially: Comet Lake-H is a mobile-oriented design, whereas Broadwell represents an earlier desktop generation.

The two chips occupy different market segments. The Intel Core i5-10400H is classified as a Mobile processor and uses the Intel BGA 1440 socket, reflecting its soldered, laptop-oriented design. The Intel Core i7-5775C is classified as a Desktop processor and uses the Intel Socket 1150, which allows for socketed installation in desktop motherboards. This distinction also affects the PCIe configuration: the Core i5-10400H lists PCIe Gen 3 without a lane count in the recorded data, while the Core i7-5775C lists PCIe Gen 3 with 16 lanes (CPU only). The Core i7-5775C has an unlocked multiplier, making it a candidate for overclocking, while the Core i5-10400H does not have an unlocked multiplier.

The integrated graphics differ as well. The Intel Core i5-10400H includes UHD Graphics, while the Intel Core i7-5775C includes Iris Pro Graphics 6200. The die size is recorded for the Core i7-5775C at 182 mm², while no die size is listed for the Core i5-10400H. Memory support is another point of divergence: the Core i5-10400H supports DDR3 and DDR4, whereas the Core i7-5775C supports only DDR3. Neither processor supports ECC memory.

The Core i7-5775C has a launch MSRP of $366. The Core i5-10400H has no launch MSRP recorded in the database. Clock behavior also separates the two: the Core i5-10400H has a base clock of 2.60 GHz and a boost clock of 4.60 GHz, while the Core i7-5775C has a base clock of 3.30 GHz and a boost clock of 3.70 GHz. The thermal design power values differ as well, with the Core i5-10400H rated at 45 watts and the Core i7-5775C rated at 65 watts.

Head-to-Head Benchmarks

The recorded head-to-head data shows a consistent pattern across Cinebench workloads. In Cinebench R15 multi-core, the Intel Core i5-10400H scores 697 against the Core i7-5775C's 660, a 5.6 percent advantage. In Cinebench R15 single-core, the Core i5-10400H scores 98 versus 93, a 5.4 percent lead. The margins widen slightly in Cinebench R20: the Core i5-10400H posts 2908 in multi-core against 2750, a 5.7 percent win, and 410 in single-core against 388, also a 5.7 percent win.

Cinebench R23 follows the same trajectory. The Core i5-10400H reaches 6924 in multi-core, while the Core i7-5775C reaches 6549, a 5.7 percent difference. In single-core, the Core i5-10400H scores 977 versus 924, again a 5.7 percent margin. Across all Cinebench variants, the Core i5-10400H maintains a stable advantage of roughly 5.4 to 5.7 percent, indicating that its higher boost clock of 4.60 GHz versus 3.70 GHz translates into a consistent throughput edge in both lightly threaded and fully threaded rendering workloads.

Geekbench results tell a slightly different story. In Geekbench multi-core, the Core i5-10400H scores 5000 against 4989, a narrow 0.2 percent win. In Geekbench single-core, the Core i7-5775C reverses the trend, scoring 1441 against 1413, a 1.9 percent advantage. This is the only recorded benchmark where the Core i7-5775C wins, and the margin is modest. The overall head-to-head tally stands at 7 wins for the Core i5-10400H and 1 win for the Core i7-5775C.

The average benchmark scores corroborate the head-to-head results. The Core i5-10400H averages 2303, which places it within 0.2 percent of the Intel Core i7-8809G (2307) and 0.7 percent below the Intel Xeon E-2134 (2319) and AMD Ryzen 7 2700 (2320). It is 0.9 percent above the Intel Xeon E5-2629 v3 (2283). The Core i7-5775C averages 2224, which is effectively tied with the Intel Core i7-8559U (2225, 0 percent delta), 0.1 percent above the Intel Xeon E5-4648 v3 (2227), 0.3 percent above the Intel Xeon D-1548 (2231), and 0.6 percent above the Intel Xeon D-1715TER (2238). The delta between the two processors in average score is approximately 79 points, roughly 3.5 percent in favor of the Core i5-10400H.

Specification Differences

The two processors differ in several recorded specifications. The socket is different: the Intel Core i5-10400H uses Intel BGA 1440, while the Intel Core i7-5775C uses Intel Socket 1150. The architecture differs, with Comet Lake for the Core i5-10400H and Broadwell for the Core i7-5775C. The market segment is Mobile for the Core i5-10400H and Desktop for the Core i7-5775C. The base clocks differ at 2.60 GHz for the Core i5-10400H and 3.30 GHz for the Core i7-5775C, and the boost clocks differ at 4.60 GHz versus 3.70 GHz. The thermal design power is 45 watts for the Core i5-10400H and 65 watts for the Core i7-5775C. Memory support differs: DDR3 and DDR4 for the Core i5-10400H, DDR3 only for the Core i7-5775C. Memory bandwidth is recorded as 46.9 GB/s for the Core i5-10400H and 25.6 GB/s for the Core i7-5775C. The integrated graphics are UHD Graphics for the Core i5-10400H and Iris Pro Graphics 6200 for the Core i7-5775C. The Core i7-5775C has an unlocked multiplier, while the Core i5-10400H does not. The die size is 182 mm² for the Core i7-5775C and not recorded for the Core i5-10400H. The Core i7-5775C has a launch MSRP of $366; the Core i5-10400H has no launch MSRP recorded.

The Verdict

The benchmark data points to the Intel Core i5-10400H as the stronger performer in the majority of recorded workloads. It wins all three Cinebench generations in both single-core and multi-core, with consistent margins around 5.4 to 5.7 percent. Its multi-core scores, from 697 in Cinebench R15 to 6924 in Cinebench R23, are higher across the board. Its Geekbench multi-core score of 5000 edges out the Core i7-5775C's 4989, albeit by only 0.2 percent. The average benchmark score reinforces this, with the Core i5-10400H at 2303 versus 2224 for the Core i7-5775C.

The one area where the Core i7-5775C leads is Geekbench single-core, where its 1441 score beats the Core i5-10400H's 1413 by 1.9 percent. That result, combined with a higher base clock of 3.30 GHz versus 2.60 GHz, suggests the Core i7-5775C retains some single-threaded responsiveness in specific workloads. However, the same single-core advantage does not appear in any of the Cinebench single-core tests, where the Core i5-10400H leads by more than 5 percent in each case. The Core i7-5775C also offers an unlocked multiplier, which may appeal to users seeking overclocking flexibility on a desktop platform with Socket 1150.

The Core i5-10400H is the better choice for users who prioritize rendering performance and multi-threaded throughput, as its Cinebench wins are substantial and consistent. It also supports DDR4 memory alongside DDR3, and its recorded memory bandwidth of 46.9 GB/s is nearly double the 25.6 GB/s of the Core i7-5775C. The Core i7-5775C, with its desktop socket, unlocked multiplier, and higher base clock, may be more appropriate for users building a desktop system around Socket 1150 who value overclocking headroom and a slight Geekbench single-core edge. Both processors sit at the 47th percentile among all CPUs, and both remain in active production, but the recorded data favors the Core i5-10400H in overall performance.