Intel Core i5-8400H vs Intel Core i5-8269U

Intel Core i5-8400H

► remove Intel 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.

Intel Core i5-8269U

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The Intel Core i5-8269U is a quad-core SoC for notebooks based on the Coffee Lake architecture and was announced in April 2018. Compared to its predecessor Core i5-7287U, the CPU is now a quad-core with Hyperthreading support for the execution of up to 8 threads simultaneously. The base frequency is 2.6 GHz, but the Turbo goes all the way up to 4.2 GHz. It is also equipped with an Intel Iris Plus Graphics 655 GPU with 128 MB eDRAM, a dual-channel memory controller (DDR4) as well as VP9 and H.265 video decoding as well as encoding. The chip is still manufactured in a 14nm process with FinFET transistors.

Compared to faster Core i7 model with eDRAM and 28 Watts, the i5-8269U only features 6 MB smart cache and a slower clock of the Iris Plus GPU.

Architecture

Intel basically uses the same micro architecture compared to Kaby Lake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Considering the clocks of the Core i5-8259U, its performance should be between above the 15W model Core i7-8650U. The i5-8269U should still be faster than the i7-8650U in practice thanks to the increased TDP, especially during sustained workloads.

Graphics

The integrated Intel Iris Plus 655 Graphics is the GT3e model of the Kaby Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1100 MHz and the performance is comparable to a GeForce 930M or 940MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Plus 650, so modern games can often not be played smoothly or only at the lowest or medium settings, respectively.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors announced in January should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency even further. Intel specifies the TDP with 28 Watts, which can be reduced to 23 Watts (cTDP Down) depending on the usage scenario. The TDP is pretty high compared to the common 15-Watt TDP for quad-core processors, but allows a better utilization of CPU and GPU Turbo.

Intel Core i5-8400HIntel Core i5-8269U
Intel Coffee LakeIntel Coffee Lake
Coffee Lake-HCoffee Lake-U
: Coffee Lake Coffee Lake-U
Intel Core i9-9980HK compare2400 - 5000 MHz8 / 1616 MB
Intel Core i9-9880H compare2300 - 4800 MHz8 / 1616 MB
Intel Core i9-8950HK compare2900 - 4800 MHz6 / 1212 MB
Intel Xeon E-2186M compare2900 - 4800 MHz6 / 1212 MB
Intel Xeon E-2276M compare2800 - 4700 MHz6 / 1212 MB
Intel Core i7-9850H compare2600 - 4600 MHz6 / 1212 MB
Intel Core i7-9750H compare2600 - 4500 MHz6 / 1212 MB
Intel Xeon E-2176M compare2700 - 4400 MHz6 / 1212 MB
Intel Core i7-8850H compare2600 - 4300 MHz6 / 129 MB
Intel Core i7-8750H compare2200 - 4100 MHz6 / 129 MB
Intel Core i5-9400H compare2500 - 4300 MHz4 / 88 MB
Intel Core i5-9300HF compare2400 - 4100 MHz4 / 88 MB
Intel Core i5-9300H compare2400 - 4100 MHz4 / 88 MB
» Intel Core i5-8400H2500 - 4200 MHz4 / 88 MB
Intel Core i5-8300H compare2300 - 4000 MHz4 / 88 MB
Intel Core i3-8100H compare3000 MHz4 / 48 MB
Intel Core i7-8559U compare2700 - 4500 MHz4 / 88 MB
Intel Core i7-8557U compare1700 - 4500 MHz4 / 88 MB
» Intel Core i5-8269U2600 - 4200 MHz4 / 86 MB
Intel Core i5-8279U compare2400 - 4100 MHz4 / 86 MB
Intel Core i5-8259U compare2300 - 3800 MHz4 / 86 MB
Intel Core i5-8257U compare1400 - 3900 MHz4 / 86 MB
Intel Core i3-8109U compare3000 - 3600 MHz2 / 44 MB
2500 - 4200 MHz2600 - 4200 MHz
256 KB256 KB
1 MB1 MB
8 MB6 MB
4 / 84 / 8
45 28
14 14
FCBGA1440FCBGA1528
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, Intel SSE4.1, Intel SSE 4.2
iGPUIntel UHD Graphics 630 (350 - 1100 MHz)Intel Iris Plus Graphics 655 (300 - 1100 MHz)
Intel Coffee Lake i5-8400HIntel Coffee Lake i5-8269U
100 °C

Cinebench R15 - CPU Multi 64Bit
770 Points (18%)
Cinebench R15 - CPU Single 64Bit
168 Points (75%)

Average Benchmarks Intel Core i5-8400H → 100%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2017-09-11)