Notebookcheck Logo

Intel Core i5-8365U

The Intel Core i5-8365U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation and was announced in April 2019 as part of two vPro capable CPUs of the WHL-U series. Compared to the similar named Kaby Lake-R processors (e.g. Core i5-8250U), the Whiskey Lake CPUs are now produced in a further improved 14nm process (14nm++) and offer higher clock speeds. The architecture and features are the same. The i5-8365U offers e.g. high Turbo clock speeds of 4.1 GHz (versus 3.4 GHz of the i5-8250U) for a single core. The integrated GPU is still named Intel UHD Graphics 620 and the dual-channel memory controller still supports the same RAM speeds as Kaby-Lake-R (DDR4-2400 / LPDDR3-2133). Thermal Velocity Boost is not supported (only in the Core i7-8565U).

Compared to the predecessor, the Core i5-8265U, the i5-8365U offers a 200 MHz higher Turbo Boost. As the i5-8365U first appeared in a Thinkpad, the CPU most likely supports vPRO for additional hardware management features.

The Whiskey Lake SoCs are used with a new PCH produced in 14nm that supports USB 3.1 Gen 2 (10 Gbps) and CNVi WiFi/BT parts.


Intel basically uses the same micro architecture compared to Skylake and Kaby Lake, so the per-MHz performance does not differ. That means Whiskey Lake is a Kaby Lake chip manufactured in the improved 14nm++ process.


The performance of the i5-8365U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. We already saw big differences for Kaby Lake-R (e.g., i7-8550U benchmarks), especially for long term (sustained) performance. Therefore, it will be interesting to see how the additionalTurbo  clock speed can be made use of. Compared to the Core i5-8265U (see for benchmarks), the 200 MHz higher Turbo Boost should result in some gains in single core benchmarks.


The integrated Intel UHD Graphics 620 (Intel Gen 9.5) is untouched from the 8th Gen Kaby Lake chips. With fast dual-channel memory it can reach the performance of a dedicated GeForce 920M.

Contrary to Skylake, Kaby Lake and Whiskey 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 a further improved 14nm process with FinFET transistors (14nm++), the same as the 8th Gen Coffee Lake processors. Intel still specifies the TDP with 15 Watts, which is typical for ULV chips. Depending on the usage scenario, the TDP can vary between 7.5 (cTDP Down) and 25 Watts.

SeriesIntel Core i5
CodenameWhiskey Lake-U

Series: Core i5 Whiskey Lake-U

Intel Core i5-8365U « 1.6 - 4.1 GHz4 / 8 cores6 MB L3
Intel Core i5-8265U compare1.6 - 3.9 GHz4 / 8 cores6 MB L3
Clock Rate1600 - 4100 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache6 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology14 nm
Max. Temperature100 °C
FeaturesDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel UHD Graphics 620 (300 - 1100 MHz)
64 Bit64 Bit support
Announcement Date04/16/2019
Product Link (external)


Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
28.9 pt (40%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 558     avg: 584     median: 579 (4%)     max: 620 Points
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 4.3     avg: 4.5     median: 4.5 (8%)     max: 4.7 fps
3DMark - 3DMark Ice Storm Physics
min: 48328     avg: 49088     median: 49088 (40%)     max: 49848 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 49912     avg: 50182     median: 50182 (41%)     max: 50452 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 55371     avg: 56207     median: 56206.5 (47%)     max: 57042 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 14833     avg: 15472     median: 15472 (17%)     max: 16111 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 1099     avg: 1142     median: 1161 (1%)     max: 1165 ms
Octane V2 - Octane V2 Total Score
min: 31051     avg: 32738     median: 32878 (30%)     max: 34285 Points
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
14.5 Points per Watt (11%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list: