Intel Core i5-9400H vs Intel Core i5-9300H vs Intel Core i5-8279U

Intel Core i5-9400H

► remove Intel 9400H

The Intel Core i5-9400H is a high-end processor for laptops with four cores based on the Coffee Lake architecture (2019 refresh, CFL-HR). The processor clocks at between 2.5 and 4.3 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. Compared to the predecessor, the Core i5-8400H from 2018, the 9300H is only clocked slightly higher (+100 MHz CPU Turbo, +50 MHz GPU).

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 i5-9400H should perform similar as the older Core i7-7920HQ (3.1 - 4.1 GHz). The faster Coffee Lake CPUs, like the Core i7-9750H offers two additional cores and is therefore up to 50% faster in multithreaded benchmarks. Still, the performance of the i5-9400H 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. 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.

Beware, the CPU was not yet released at the time of writing and the information is based on leaks and early price list information (e.g. by Intel or on Baidu).

Intel Core i5-9300H

► remove Intel 9300H

The Intel Core i5-9300H is a fast processor for laptops with four cores based on the Coffee Lake architecture (2019 Refresh, CFL-HR). The processor clocks at between 2.4 and 4.1 GHz (4 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. Compared to the predecessor, the Core i5-8300H from 2018, the 9300H is clocked slightly higher (+100 MHz CPU, +50 MHz GPU).

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 i5-9300H should perform similar as the older Core i7-7920HQ (3.1 - 4.1 GHz). The faster Coffee Lake CPUs, like the Core i7-8750H/9750H offers two additional cores and is therefore up to 50% faster in multithreaded benchmarks. Still, the performance of the i5-9300H 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. 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 i5-8279U

► remove

The Intel Core i5-8279U is a quad-core SoC for notebooks based on the Coffee Lake architecture and was announced in the first quarter of 2019. 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 2.4 GHz, but the Turbo goes all the way up to 4.1 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 (e.g. Core i7-8559U) with eDRAM and 28 Watts, the i5-8279U 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 i5-82769U should still be faster than the i7-8650U in practice thanks to the increased TDP, especially during sustained workloads. Compared to the similar named Intel Core i5-8269U, the 8279U offers a slightly lower performance (-200 MHz Turbo, -100 MHz base) although the name suggests otherwise.

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 300-1150 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 i5-9400HIntel Core i5-9300HIntel Core i5-8279U
Intel Core i5Intel Core i5Intel Core i5
Coffee LakeCoffee LakeCoffee Lake
: Core i5 Coffee Lake
» Intel Core i5-9400H2500 - 4300 MHz4 / 88 MB
Intel Core i5-8400H2500 - 4200 MHz4 / 88 MB
Intel Core i5-9300H2400 - 4100 MHz4 / 88 MB
Intel Core i5-8300H2300 - 4000 MHz4 / 88 MB
Intel Core i5-8269U2600 - 4200 MHz4 / 86 MB
Intel Core i5-8279U2400 - 4100 MHz4 / 86 MB
Intel Core i5-8259U2300 - 3800 MHz4 / 86 MB
Intel Core i5-8257U1400 - 3900 MHz4 / 86 MB
Intel Core i5-9400H2500 - 4300 MHz4 / 88 MB
Intel Core i5-8400H2500 - 4200 MHz4 / 88 MB
» Intel Core i5-9300H2400 - 4100 MHz4 / 88 MB
Intel Core i5-8300H2300 - 4000 MHz4 / 88 MB
Intel Core i5-8269U2600 - 4200 MHz4 / 86 MB
Intel Core i5-8279U2400 - 4100 MHz4 / 86 MB
Intel Core i5-8259U2300 - 3800 MHz4 / 86 MB
Intel Core i5-8257U1400 - 3900 MHz4 / 86 MB
Intel Core i5-9400H2500 - 4300 MHz4 / 88 MB
Intel Core i5-8400H2500 - 4200 MHz4 / 88 MB
Intel Core i5-9300H2400 - 4100 MHz4 / 88 MB
Intel Core i5-8300H2300 - 4000 MHz4 / 88 MB
Intel Core i5-8269U2600 - 4200 MHz4 / 86 MB
» Intel Core i5-8279U2400 - 4100 MHz4 / 86 MB
Intel Core i5-8259U2300 - 3800 MHz4 / 86 MB
Intel Core i5-8257U1400 - 3900 MHz4 / 86 MB
2500 - 4300 MHz2400 - 4100 MHz2400 - 4100 MHz
256 KB256 KB256 KB
1 MB1 MB1 MB
8 MB8 MB6 MB
4 / 84 / 84 / 8
45 45 28
14 14 14
FCBGA1440FCBGA1440FCBGA1528
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-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 UHD Graphics 630 (350 - 1050 MHz)Intel Iris Plus Graphics 655 (300 - 1150 MHz)
100 °C100 °C
$250 U.S.
Intel Core i5 9300HIntel Core i5 8279U

Cinebench R20 - CPU (Single Core)
min: 398     avg: 415     median: 419 (82%)     max: 427 Points
421 Points (82%)
Cinebench R20 - CPU (Multi Core)
min: 1530     avg: 1727     median: 1737 (20%)     max: 1877 Points
1717 Points (19%)
Cinebench R15 - CPU Multi 64Bit
823 Points (19%)
min: 717     avg: 784     median: 790 (18%)     max: 850 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770780790800810820830840850860Tooltip
min: 743     avg: 750     median: 750 (17%)     max: 757 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760Tooltip
Cinebench R15 - CPU Single 64Bit
min: 169     avg: 173     median: 172 (79%)     max: 176 Points
min: 166     avg: 168     median: 167.5 (77%)     max: 169 Points
Cinebench R11.5 - CPU Multi 64Bit
9.4 Points (24%)
8.3 Points (21%)
Cinebench R11.5 - CPU Single 64Bit
1.9 Points (78%)
Cinebench R10 - Rendering Single 32Bit
min: 6421     avg: 6561     median: 6572 (68%)     max: 6677 Points
6551 Points (67%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 21798     avg: 24198     median: 24623 (41%)     max: 25656 Points
24096 Points (41%)
wPrime 2.0x - 1024m *
266 seconds (3%)
wPrime 2.0x - 32m *
8.6 seconds (2%)
WinRAR - Result
5663 KB/s (66%)
5862 KB/s (69%)
7-Zip 18.03 - 7z b 4
min: 20736     avg: 22008     median: 22133 (24%)     max: 23155 MIPS
22683 MIPS (24%)
7-Zip 18.03 - 7z b 4 -mmt1
min: 4542     avg: 4592     median: 4609 (30%)     max: 4626 MIPS
4276 MIPS (28%)
X264 HD Benchmark 4.0 - Pass 2
49.4 fps (31%)
45.7 fps (29%)
X264 HD Benchmark 4.0 - Pass 1
194 fps (69%)
190 fps (67%)
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 5.7     avg: 6.1     median: 6 (22%)     max: 6.5 fps
01020Tooltip
6 fps (22%)
01020Tooltip
TrueCrypt - Serpent Mean 100MB
0.5 GB/s (26%)
TrueCrypt - Twofish Mean 100MB
0.8 GB/s (0%)
TrueCrypt - AES Mean 100MB
4.7 GB/s (24%)
Blender 2.79 *
min: 588     avg: 611     median: 602 (4%)     max: 643 Seconds
627 Seconds (4%)
3DMark 06 - CPU
min: 7787     avg: 8354     median: 8107 (54%)     max: 9169 Points
8830 Points (59%)
Super Pi mod 1.5 XS 1M *
9.1 Seconds (2%)
9.2 Seconds (2%)
Super Pi mod 1.5 XS 2M *
20.3 Seconds (1%)
21.3 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
496 Seconds (2%)
512 Seconds (2%)
3DMark Vantage - P CPU no PhysX 1280x1024
26995 Points (38%)
3DMark 11 - Performance Physics 1280x720
min: 7499     avg: 8987     median: 9107 (45%)     max: 10557 points
3DMark - Ice Storm Standard Physics 1280x720
min: 52412     avg: 55875     median: 56000 (36%)     max: 58466 Points
21476 Points (14%)
3DMark - Ice Storm Extreme Physics 1920x1080
min: 49250     avg: 54277     median: 54947 (65%)     max: 58074 Points
21581 Points (26%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 58114     avg: 58963     median: 58413 (68%)     max: 61541 Points
24185 Points (28%)
3DMark - Cloud Gate Standard Physics 1280x720
min: 5356     avg: 7678     median: 7828.5 (20%)     max: 8903 Points
7017 Points (18%)
3DMark - Fire Strike Physics 1920x1080
min: 9387     avg: 11376     median: 11698 (40%)     max: 12349 Points
10411 Points (35%)
Geekbench 3 - 32 Bit Multi-Core Score
min: 14195     avg: 15338     median: 15527.5 (28%)     max: 16101 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 3596     avg: 3854     median: 3854.5 (80%)     max: 4109 Points
Geekbench 4.0 - 64 Bit Single-Core Score
5266 Points (83%)
Geekbench 4.0 - 64 Bit Multi-Core Score
16911 Points (47%)
Geekbench 4.4 - 64 Bit Single-Core Score
min: 4704     avg: 4898     median: 4901 (77%)     max: 5089 Points
4850 Points (77%)
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 14853     avg: 16246     median: 16541 (29%)     max: 17684 Points
17643 Points (31%)
Geekbench 5 - 64 Bit Single-Core Score
min: 1095     avg: 1118     median: 1123 (84%)     max: 1137 Points
Geekbench 5 - 64 Bit Multi-Core Score
min: 3697     avg: 4014     median: 4146 (25%)     max: 4200 Points
Mozilla Kraken 1.1 - Total Score *
min: 1079.1     avg: 1138     median: 1108.5 (2%)     max: 1349.2 ms
740 ms (1%)
Sunspider - 1.0 Total Score *
86.6 ms (1%)
Octane V2 - Total Score
min: 22225     avg: 32344     median: 33646 (64%)     max: 34957 Points
44259 Points (84%)

Average Benchmarks Intel Core i5-9400H → 100%

Average Benchmarks Intel Core i5-9300H → 100%

Average Benchmarks Intel Core i5-8279U → 94%

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

v1.10
Please share our article, every link counts!
> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)