Intel Core i5-8350U

Intel 8350U

The Intel Core i5-8350U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Kaby Lake Refresh generation and was announced in August 2017. Contrary to its direct predecessor the Core i5-7300U, which were still dual-cores, the i7-8350U is equipped with four cores but at a lower base frequency of 1.7 GHz. The Turbo Boost can go up to 3,6 GHz and therefore also offer good short term single core speeds. The GPU is now named Intel UHD Graphics 620 but otherwise identical to the Intel HD Graphics 620. The integrated memory controller supports DDR4-2400 / LPDDR3-2133 and dual channel memory.


Intel basically uses the same micro architecture compared to Skylake, 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.


According to Intel, the new quad core models are up to 40% faster than their dual core predecessors. Due to the reduced TDP and the same 14nm+ process, the long term performance and throttling behaviour will be interesting and depending on the laptop design. Therefore, the older 35 Watt quad-core models should be faster in applications that demand longer CPU loads.


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 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 (14nm+), the same as the 7th Gen Kaby 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
CodenameKaby Lake Refresh
Series: Core i5 Kaby Lake Refresh
» Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
Intel Core i5-8250U (compare)1600 - 3400 MHz4 / 86 MB
Clock Rate1700 - 3600 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache6 MB
Number of Cores / Threads4 / 8
Max. 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
Starting Price$297 U.S.
Announcement Date08/21/2017


Cinebench R15 - CPU Multi 64Bit
min: 501     avg: 559.8     median: 556.5 (26%)     max: 625 Points
Cinebench R15 - CPU Single 64Bit
min: 142     avg: 149     median: 151 (74%)     max: 152 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.62     avg: 1.7     median: 1.7 (71%)     max: 1.71 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
28684 Points (50%)
wPrime 2.0x - 1024m *
min: 305.731     avg: 330.5     median: 330.4 (4%)     max: 355.162 seconds
wPrime 2.0x - 32m *
min: 7.517     avg: 9.7     median: 9.7 (2%)     max: 11.891 seconds
WinRAR - Result
min: 1960     avg: 2961     median: 2961 (35%)     max: 3962 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 34     avg: 37.3     median: 37.3 (31%)     max: 40.55 fps
TrueCrypt - Serpent Mean 100MB
min: 0.456     avg: 186.2     median: 186.2 (50%)     max: 372 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.754     avg: 320.9     median: 320.9 (50%)     max: 641 GB/s
TrueCrypt - AES Mean 100MB
min: 3.7     avg: 4.1     median: 4.1 (21%)     max: 4.4 GB/s
3DMark 06 - CPU
min: 5852     avg: 6234.5     median: 6234.5 (49%)     max: 6617 Points
Super Pi mod 1.5 XS 1M *
min: 10     avg: 10.9     median: 10.9 (2%)     max: 11.883 Seconds
Super Pi mod 1.5 XS 2M *
min: 23     avg: 25.3     median: 25.3 (1%)     max: 27.616 Seconds
Super Pi Mod 1.5 XS 32M *
min: 580     avg: 637     median: 637 (3%)     max: 693.93 Seconds
3DMark 11 - Performance Physics 1280x720
min: 5969     avg: 6179.3     median: 6121 (34%)     max: 6448 points
3DMark - Cloud Gate Standard Physics 1280x720
min: 5873     avg: 6373     median: 6297 (16%)     max: 6949 Points
3DMark - Fire Strike Physics 1920x1080
min: 8424     avg: 9244.7     median: 8948 (35%)     max: 10362 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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