Intel Core i7-10610U vs Intel Core i5-8400H

Intel Core i7-10610U

The Intel Core i7-10610U is a power efficient quad-core SoC for notebooks based on the Comet Lake (CML-U) generation and was announced in August 2019. Compared to the similar Whiskey Lake processors (e.g. Core i7-8665U), the only difference is support for higher memory speeds (DDR4-2666 vs 2400) and two additional cores in the top model (not in this i7-10610U). The processor cores are clocked between 1.8 and 4.9 GHz (unverified). Thanks to Hyper-Threading 8 threads can be used. More information on Comet Lake and all the models and articles on it can be found here.

Compared to the similar Core i7-10510U, the 10610U supports vPro.

The integrated graphics adapter however is still the same as in the previous generations. It should be still called Intel UHD Graphics 620 and clock from 300 - 1150 MHz in the i7. Furthermore, the SoC integrates a VP9 and H.265 de- and encoder and an integrated dual channel DDR4-2666 / LPDDR4x 2933 / LPDDR3-2133 memory controller.

Performance

The average 10610U in our database is in the same league as the Core i5-1035G1 and also the Core i5-8257U, as far as multi-thread benchmark scores are concerned.

Thanks to its decent cooling solution and a long-term power limit of 25 W, the HP ZBook Firefly 14 G7 is among the fastest laptops built around the 10610U that we know of. It can be about 30% faster in CPU-bound workloads than the slowest system featuring the same chip in our database, as of August 2023.

Power consumption

This Core i7 has a default TDP of 15 W (also known as the long-term power limit). Laptop manufacturers are free to change that value to anything between 10 W and 25 W, with clock speeds and performance changing accordingly. Perhaps more importantly, short-term power consumption of 10th gen Comet Lake U processors can be as high as 80 W or even 90 W, making passively cooled designs rather unlikely to appear.

Core i7-10610U is manufactured on an old, as of late 2022, 14 nm Intel process for subpar energy efficiency.

Intel Core i5-8400H

The Intel Core i5-8400H is a high-end processor for laptops with four cores based on the Coffee Lake architecture and will be announced early 2018. The processor clocks at between 2.5 and 4.2 GHz (4.1 with 4 cores) and can execute up to eight threads simultaneously thanks to Hyper-Threading. According to Intel, the CPU is manufactured in an improved 14nm (14nm++) process.

The Coffee Lake architecture is similar to Kaby Lake and differs only in the amount of cores (now six cores for the high end versions) and the improved 14nm process (14nm++ according to Intel).

Performance

The Intel Core i5-8400H should perform similar as the older Core i7-7920HQ (3.1 - 4.1 GHz). The faster Coffee Lake CPUs, like the Core i7-8750H offers two additional cores and is therefore up to 50% faster in multithreaded benchmarks. Still, the performance of the i5-8400H should be sufficient for even demanding applications and games.

Graphics

The integrated Intel UHD Graphics 630 iGPU is supposed to offer a slightly higher performance as its clock rate has been increased by 50 MHz (rumored). The architecture is identical to that of the Intel HD Graphics 630. We do expect a performance improvement, but as a low-end solution it will probably only display current games smoothly at reduced details - if at all.

Power Consumption

Intel specifies the TDP with 45 watts and therefore the i5 is only suited for big laptops with good cooling solutions. Using cTDP-down, the CPU can also be configured to 35 Watt resulting in a reduced performance.