Intel Core I9-10900k vs Intel Core I9-9900k: Expectations vs Reality

intel i9

The Core i9-10900K is a high-end processor that knows how to take advantage of its 10 cores to offer high-end service in the application field. It is also a solution of choice for gamers equipped with high-end graphics cards, aided by its high frequencies. 

The Core i9-9900K excels in the application field and is formidable in games; where the second generation Ryzen are ahead. In absolute terms, it is therefore an excellent processor, and this, even if Intel has not offered anything new from an architectural point of view, since 2015. However, check the pricing position at the time of release.

General Info

Intel Core i9-10900KIntel Core i9-9900K
intel i9 1intel i9 1
CPU Modeli9-10900Ki9-9900K
Manufacturing Process14 nm14 nm
Maximum CPU Configuration1S1S
Number of PCIe Lanes16 Lanes16 Lanes
Weight88.45 g99.79 g
Release date8 October 201830 April 2020

The Core i9-10900K model has 10 cores and has Hyperthreading; it, therefore, displays 20 threads on its counter. The base frequency is 3.7 GHz and it is possible to reach 5.2 GHz on 2 cores in some cases. Via its Velocity Boost technology, it can grab an additional 100 MHz and reach 5.3 GHz on one core and 4.9 GHz on all cores as soon as its temperature is controlled – a high-end cooler or a water cooling system AiO is then recommended.

The Core i9-9900K model has 8 cores and has Hyper-threading; it, therefore, displays 16 threads on its counter. The base frequency is 3.6 GHz and it is possible to reach 5 GHz on 2 cores in some cases.

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Intel Core i9-10900KIntel Core i9-9900K
Number of Cores10 Cores8 Cores
CPU Threads2016
Base Clock Speed3.7 GHz3.6GHz
Maximum Boost Speed5.3 GHz5.0GHz
L3 Cache20MB16MB
CPU SpeedDMI3 (8 GT/s)DMI3 (8 GT/s)
CPU Temperature100°C100°C

Memory Support

Intel Core i9-10900KIntel Core i9-9900K
Maximum Capacity128 GB64 GB
Memory SupportDDR4 2666 MHzDDR4 2666 MHz
ECC MemoryNoNo
Channel ArchitectureDual-ChannelDual-Channel
Maximum Memory Bandwidth45.8 GB/s41 GB/s

Integrated Graphics

Intel Core i9-10900KIntel Core i9-9900K
Graphics ChipsetIntel UHD Graphics 630Intel UHD Graphics 630
Maximum Resolution Support4096 x 2304 at 60 Hz4096 x 2304 at 60 Hz
Supported APIsOpenGL:4.5
Output SupporteDP, DisplayPort, HDMIeDP, DisplayPort, HDMI
Number of Displays33


Intel Core i9-10900KIntel Core i9-9900K
PassMark result (single)31752986
Cinebench R20 (single) result79338127
Geekbench 5 result (multi)109918795
Geekbench 5 result (single)14061336

Overall benchmark performance

Overall benchmark performance

Cinebench 10 32-bit single-core

Cinebench 10 32 bit single core

Cinebench 10 32-bit multi-core

Cinebench 10 32 bit multi core