steam High CPU usage on Steam Downloads

[SirBilliam]

I noticed that when I am downloading a new game on Steam, my CPU usage will be between 50-80% usage. For reference, I have an i7-5820k @ 4.4Ghz, and an internet speed of 400 Mbps (megabits, not bytes). Why does a simple task such as downloading/installing a game push my CPU so hard? 

[WereCatf]

16 minutes ago, SirBilliam said:

I noticed that when I am downloading a new game on Steam, my CPU usage will be between 50-80% usage. For reference, I have an i7-5820k @ 4.4Ghz, and an internet speed of 400 Mbps (megabits, not bytes). Why does a simple task such as downloading/installing a game push my CPU so hard? 

The files are encrypted, so Steam has to decrypt and verify them on-the-fly as they're being downloaded.

[Chaftalie]

In this case most of the time its not as simple as just downloading, many games on steam are pretty heavy compressed, so you Steam decompresses the download stream while downloading, so installing the game is faster after downloading.

 

LTT Video where the download is capped by the CPU and not the connection:

Downloading Games at 10 GIGABIT?

 

[SirBilliam]

On 7/14/2019 at 2:36 AM, WereCatf said:

The files are encrypted, so Steam has to decrypt and verify them on-the-fly as they're being downloaded.

 

On 7/14/2019 at 2:37 AM, Chaftalie said:

In this case most of the time its not as simple as just downloading, many games on steam are pretty heavy compressed, so you Steam decompresses the download stream while downloading, so installing the game is faster after downloading.

 

LTT Video where the download is capped by the CPU and not the connection:

Downloading Games at 10 GIGABIT?

 

Thank you both for your input. Cheers!