GadgetVersus Smartphone Processor

Intel Core i9-9900KS vs Intel Core i7-8650U

Intel Core i9-9900KS on Amazon USA
Intel Core i7-8650U on Amazon USA

Comparison of the technical characteristics between the processors, with the Intel Core i9-9900KS on one side and the Intel Core i7-8650U on the other side. The first is dedicated to the desktop sector, It has 8 cores, 16 threads, a maximum frequency of 5.0GHz. The second is used on the laptop segment, it has a total of 4 cores, 8 threads, its turbo frequency is set to 4.2 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the date of first broadcast, the maximum number of PCIe lines, the values ​​obtained in Geekbench 4 and Cinebench R15, as well as an average price.


Processor Intel Core i9-9900KS Intel Core i7-8650U
Market Desktop Laptop
Family Coffee Lake Kaby Lake R
Part number(s), S-Spec BX80684I99900KS,
Release date Q4 2019 Q3 2017
Lithography 14 nm++ 14 nm+
Cores 8 4
Threads 16 8
Base frequency 4.0 GHz 1.9 GHz
Turbo frequency 5.0 GHz 4.2 GHz
Cache memory 16 MB 8 MB
Max memory capacity 128 GB 32 GB
Memory types DDR4-2666 DDR4-2400,
Max PCIe lanes 16 12
TDP 127 W 15 W
GPU integrated graphics Intel UHD Graphics 630 Intel UHD Graphics 620
GPU execution units 23 24
GPU shading units 184 192
GPU clock rate 1,150 MHz 1,150 MHz
GPU FP32 floating point 423.2 GFLOPS 441.6 GFLOPS
Socket LGA 1151 BGA 1356
Cinebench R15 single thread 220 177
Cinebench R15 multi-thread 2,150 840
PassMark single thread 3,110 2,250
PassMark CPU Mark 19,960 6,570
(Windows 64-bit)
Geekbench 4 single core
6,728 4,268
(Windows 64-bit)
Geekbench 4 multi-core
36,852 12,567
GFLOPS performance
(Multi-core / price performance)
Performance / price ratio
53 pts / $ 9 pts / $
(Multi-core / watt performance)
Performance / watt ratio
290 pts / W 838 pts / W
(Multi-core / global cost performance)
Performance / global cost ratio
35 pts / $ 8 pts / $
Note 4.8 / 5 4 / 5
Reviews 1,704 148
Amazon Intel Core i9-9900KS Intel Core i7-8650U
New price on Amazon
$700 $1,470
Used price on Amazon
- $840
eBay Intel Core i9-9900KS Intel Core i7-8650U
New price on eBay
$860 $1,900
Used price on eBay
$1,450 $1,330

Price: prices can change over time. For technical reasons, they are not updated in real time. This is only an average of the results on the first page of each product, whether new or used. Shipping costs have not been integrated. To know the final price of the product, please go to the form of the shop. If no price is indicated, it means that we did not find any offers during the last update.

We can better compare what are the technical differences between the two processors. The processor Intel Core i9-9900KS has more cores, the maximum frequency of Intel Core i9-9900KS is greater, that the thermal dissipation power of Intel Core i7-8650U is less. The Intel Core i9-9900KS was designed earlier.

Ratios: we first consider the average for the new price if available, the average for the used price otherwise. Performance / global cost ratio: This is the ratio of performance on Geekbench 4, divided by the cost of the product + the cost of electricity over 5 years for a duration of use of 13 hours per day.

Performances :

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.

Cinebench R15 - Multi-thread & single thread score
Intel Core i9-9900KS 220
Intel Core i7-8650U 177

In single core, the difference is 24%. In multi-core, the differential gap is 156%.

Cinebench R15 evaluates the performance of CPU calculations by restoring a photorealistic 3D scene. The scene has 2,000 objects, 300,000 polygons, uses sharp and fuzzy reflections, bright areas, shadows, procedural shaders, antialiasing, and so on. The faster the rendering of the scene is created, the more powerful the PC is, with a high number of points.

PassMark - CPU Mark & single thread
Intel Core i9-9900KS 3,110
Intel Core i7-8650U 2,250

In single core, the difference is 38%. In multi-core, the differential gap is 204%.

PassMark is a benchmarking software that performs several performance tests including prime numbers, integers, floating point, compression, physics, extended instructions, encoding, sorting. The higher the score is, the higher is the device capacity.

On Windows 64-bit:

Geekbench 4 - Multi-core & single core score - Windows 64-bit
Intel Core i9-9900KS 6,728
Intel Core i7-8650U 4,268

In single core, the difference is 58%. In multi-core, the differential gap is 193%.

On Linux 64-bit:

Geekbench 4 - Multi-core & single core score - Linux 64-bit
Intel Core i9-9900KS 7,208
Intel Core i7-8650U 3,609

In single core, the difference is 100%. In multi-core, the differential gap is 356%.

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, images, AES encryption, SQL encoding, HTML, PDF file rendering, matrix computation, Fast Fourier Transform, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these devices. For each result, we took an average of 250 values on the famous benchmark software.

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