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Intel Core i5-8265U

The Intel Core i5-8265U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation and will probably be announced in August 2018. 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 i5-8265U offers e.g. high Turbo clock speeds of 3,9 GHz (versus 3,4 GHz of the i5-8250U) for a single core (3.8 for two cores, 3.7 GHz for all four cores). 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).

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 i5-8265U 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. For the Core i7, Intel estimates between 3-11% higher performance to the Kaby-Lake-R generation and that should be similar in the Core i5 (as long as the cooling is sufficient).


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.

Warning: Above information is partly still based on rumors and leaks and may therefore change till release.

SeriesIntel Core i5
CodenameWhiskey Lake-U
Series: Core i5 Whiskey Lake-U
Intel Core i5-8365U compare1.6 - 4.1 GHz4 / 86 MB
» Intel Core i5-8265U1.6 - 3.9 GHz4 / 86 MB
Clock Rate1600 - 3900 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
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 Date08/21/2018


Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
34.9 pt (41%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 325     avg: 389     median: 397 (51%)     max: 403 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 972     avg: 1267     median: 1237 (5%)     max: 1564 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 457     avg: 592     median: 601.5 (6%)     max: 750 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 111     avg: 155     median: 159 (54%)     max: 164 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 13731     avg: 16206     median: 15999 (11%)     max: 18802 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 3780     avg: 4052     median: 4081 (59%)     max: 4195 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 3.38     avg: 4.2     median: 4.2 (9%)     max: 4.8 fps