Intel Pentium II 400 MHz vs Intel Core i9-9990XE

Intel Pentium II 400 MHz on Amazon USA
Intel Core i9-9990XE on Amazon USA

Comparison of the technical characteristics between the processors, with the Intel Pentium II 400 MHz on one side and the Intel Core i9-9990XE on the other side, also their respective performances with the benchmarks. The first is dedicated to the desktop sector, It has 1 cores, 1 threads, a maximum frequency of 0.4GHz. The second is used on the very high-end desktop computer segment, it has a total of 14 cores, 28 threads, its turbo frequency is set to 5.0 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 release date, the maximum number of PCIe lanes, the values ​​obtained in Geekbench and Cinebench.

Specification comparison:

Processor Intel Pentium II 400 MHz Intel Core i9-9990XE
Market (main)Desktop Very high-end desktop computer
ISAx86-32 (32 bit) x86-64 (64 bit)
MicroarchitectureP6 Skylake
Core nameDeschutes Skylake-X
FamilyPentium II Core i9-9000
Part number(s), S-Spec

Q434, SL2S7

Release dateQ2 1998 Q1 2019
Lithography250 nm 14 nm++
Transistors7,500,000 -
Cores1 14
Threads1 28
Base frequency400 MHz 4.0 GHz
Turbo frequency- 5.0 GHz
High performance cores


14 Cores 28 Threads @ 4.0 / 5.0 GHz
Bus speed0.1 GT/s 8 GT/s
Cache memory512 KB 19.25 MB
Max memory capacity4 GB 128 GB
Memory types


Max PCIe lanes- 44
TDP24 W 255 W
Suggested PSU550W ATX Power Supply 750W ATX Power Supply
GPU integrated graphicsNone None
SocketSlot 1, SC242 LGA2066
Compatible motherboard- Socket LGA 2066 Motherboard 
Maximum temperature75°C 84°C
Crypto engine


AES New Instructions


Execute Disable Bit
(Android | Windows)
Geekbench 4 single core
71 5,687
(Android | Windows)
Geekbench 4 multi-core
129 57,104
GFLOPS Performance
0.99 GFLOPS 1,970 GFLOPS
(Multi-core / watt performance)
Performance / watt ratio
5 pts / W 224 pts / W

We can better compare what are the technical differences between the two processors.

Suggested PSU: We assume that we have an ATX computer case, a high end graphics card, 16GB RAM, a 512GB SSD, a 1TB HDD hard drive, a Blu-Ray drive. We will have to rely on a more powerful power supply if we want to have several graphics cards, several monitors, more memory, etc.

Price: For technical reasons, we cannot currently display a price less than 24 hours, or a real-time price. This is why we prefer for the moment not to show a price. You should refer to the respective online stores for the latest price, as well as availability.

The processor Intel Core i9-9990XE has a larger number of cores, the turbo frequency of Intel Core i9-9990XE is bigger, that the PDT of Intel Pentium II 400 MHz is lower. The Intel Core i9-9990XE was started more recently.

Performance comparison with the benchmarks:

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

Geekbench 4 - Multi-core & Single Core Score - Windows & Android
Intel Core i9-9990XE 5,687
Intel Pentium II 400 MHz 71

In single core, the difference is 7910%. In multi-core, the difference in terms of gap is 44167%.

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.


Intel Pentium II 400 MHz AMD EquivalentIntel Core i9-9990XE AMD Equivalent © 2024 - About us - XML sitemap - Privacy policy - Advertising policy - Contact


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