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CPU Core Details

CPU Codename - Zen 3
MoBo Socket FCBGA1787 Socket AM4
Notebook CPU yes yes
Release Date - 12 Jan 2021
CPU Link GD Link GD Link

CPU Technical Specifications

CPU Cores 8 8
CPU Threads 16 16
Clock Speed 2.1 GHz 2.8 GHz
Turbo Frequency 4.9GHz 4.4 GHz
Max TDP - 35 W
Lithography 10 nm 7 nm
Bit Width 64 Bit 64 Bit
Max Temperature 100°C 95°C
Virtualization Technology no no

CPU Cache and Memory

L1 Cache Size - 768 KB
L2 Cache Size - 6144 KB
L3 Cache Size 24 MB 20 MB
Memory Types
Max Memory Size 128 GB 64 GB
Memory Channels 2 2
ECC Memory Support no no

CPU Graphics

Integrated Graphics no no
Base GPU Frequency - -
Max GPU Frequency - -
DirectX - -
Displays Supported - -

CPU Mini Review

Mini Review The Core i9-11900H 8-Core 2.10GHz is a laptop CPU. It offers 8 physical cores (16 logical), initially clocked at 2.10GHz, which may go up to 4.90GHz using 8 cores with Turbo Boost. The Core i9-11900H has 24MB of L3 Cache. The Ryzen 7 5800HS is a mid to top-end gaming laptop CPU based on AMD's 7nm+ Zen 3 microarchitecture. It offers 8 physical cores (16 logical), initially clocked at 2.8GHz, which may go up to 4.4GHz using Precision Boost. It has 20MB of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. This processor also supports DDR4 based RAMs with maximum memory support of 64GB. It has a maximum Thermal Power Design of 35W. This makes the Ryzen 7 5800HS a portable mobile CPU. Among its many features are Simultaneous Multithreading, Cool n Quiet, CoolCore Technology, Extended Frequency Range (XFR), Pure Power and Precision Boost are enabled. It features an integrated AMD Radeon Vega GPU with 11 Compute Units that offers low-end graphical performance.

Gaming Performance Comparison

In terms of overall gaming performance, the AMD Ryzen 7 5800HS 8-Core 2.8GHz is massively better than the Intel Core i9-11900H 8-Core 2.10GHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

Both the Core i9-11900H 8-Core 2.10GHz and the Ryzen 7 5800HS 8-Core 2.8GHz were released at the same time, so are likely to be quite similar.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

{ The Core i9-11900H 8-Core and the Ryzen 7 5800HS both have 8 cores. Games are not yet able to harness this many cores, so it is probably excessive if you mean to just run the latest games; however, if you intend on running a server with this CPU, it would seem to be a decent choice.

Both the Intel Core i9-11900H 8-Core 2.10GHz and the AMD Ryzen 7 5800HS 8-Core 2.8GHz have the same number of threads. Both the Core i9-11900H 8-Core and the Ryzen 7 5800HS use hyperthreading. The Core i9-11900H 8-Core has 2 logical threads per physical core and the Ryzen 7 5800HS has 2.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Core i9-11900H 8-Core and Ryzen 7 5800HS are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Ryzen 7 5800HS has a 0.7 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is enough that it possibly indicates the superiority of the .

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.