My download speed is lower on a large scale than it actually is.

[ardavein]

I've got 940 MBps download speed and I can use %100 of it anywhere without a single issue and also a M2 Nvme SSD with 1800MB/s write speed. But when it comes to downloading games on Steam, my downlaod speed steadily is at around 20-25 MB/s, which is around 150-200 MBps.
I think the problem is not directly affiliated with my internet speed or write speed of SSD,

- I can download files with 100-110 MB/s from any other sources.
- The speed limit option is not chosen.
- I'm using closest server to me: Istanbul, which city I live in
- I dont have any antivirus program but Windows Defender
- I'm not using a VPN or something

Any suggestion or help will be apreciated. My speedtest and SSD speed test are right below:

My speedtest result: https://www.speedtest.net/my-result/d/e9d7cde3-cfec-4bbc-bdbb-1cc35b378382
CrystalDiskMark result: https://ibb.co/9HV4LQJz (IMGbb URL)

[HIVEmind]

Hdd limitation? Try downloading on your fastest hard drive

[HIVEmind]

Do you have a good switches too

[Satoru]

https://steamcommunity.com/sharedfiles/filedetails/?id=1082209554

Steam can obliterate 1gbps connections

Your steam downloads are limited by

1) your cpu
2) yoru disk IO
3) your anti-virus
4) your ISP

Pick one. Cuz its not steam

[ardavein]

Originally posted by Satoru:

https://steamcommunity.com/sharedfiles/filedetails/?id=1082209554

Steam can obliterate 1gbps connections

Your steam downloads are limited by

1) your cpu
2) yoru disk IO
3) your anti-virus
4) your ISP

Pick one. Cuz its not steam

If the problem is one of these, why can i download anything at 1gbps from anywhere but steam?

[Elucidator]

I recall reading about certain turkish internet service providers causing issues with Steam specifically. It was a weird case.

Can you try cloaking your traffic using Cloudflare's WARP tool and see if that improves your speed? (you can get it here: https://one.one.one.one/ )
Its a ... semi-vpn. At the very least it shouldn't delay your downloads on steam since, cloudflare is one of Steam's partners.

[ardavein]

Originally posted by Elucidator:

I recall reading about certain turkish internet service providers causing issues with Steam specifically. It was a weird case.

Can you try cloaking your traffic using Cloudflare's WARP tool and see if that improves your speed? (you can get it here: https://one.one.one.one/ )
Its a ... semi-vpn. At the very least it shouldn't delay your downloads on steam since, cloudflare is one of Steam's partners.

I tried using WARP but my average download speed is as same as it was before. The ISP told me there is no problem with steam, so i should get my max speed.

[Elucidator]

If your ISP tested it themselves, then the issue must either be on your network or on your computer.

Technically, it makes no sense some people only get max speed when they download towards an NVMe connected SSD, rather than a SATA III one. This is because Sata 3 has a 6 Gigabit per second transfer speed limit, which is way more than 1Gb/s

When I look at your crystaldiskmark results, then even with Random 4K, read speed, which for whatever reason is slower than write, odd.. but okay
50MB/s that's 400Mbits/s
and you download on steam for about 150Mbits

Its not the drive, its not the connector.

So what is it then?

Driver settings? Power Saving settings?
I am thinking about things like that.

Can you try unchecking "Enable Write Caching on this Device"?
Also make sure you tried at least what Steam's FAQ advises: https://help.steampowered.com/en/faqs/view/5AC5-8056-E88F-F3FF
You might also want to try clearing the download cache
and maybe disabling Streamer Throttling

[crunchyfrog]

Many people don't understand that Steam works a bit differently to other services. So there's afew things you need to understand.

First off, Steam downloads are encrypted and compressed. For this reason, this means it' ain't your internet connection that governs speed. It's your RAM, CPU, I/O, hard drive, and more. The reason being that when it downloads a chunk it has to unpack it all, write it to a certain place, sort it before writing it to it's final place. This uses all those resources. Check Task Manager and watch to see if any of those system resources get hit hard. If so ,there's your bottleneck.

Also, Valve recommend to not go over about 90% of your hard drive's space. And alloow up to THREE times the total space for the download. If you go over that threshold then you can be assured that things will slow down as your PC desperately wrestles to find space to write and sort all that data.

Lastly, rthe region dance. You MUST learn to do this.

Downloads are largely one way. This means ping ain't relevant like with online gaming. So you can download from ANYWHERE. Go to Google and look up timezones. Find anywhere in the world that's currently about 2 am to 4 am and find the best one amongst those regions.

[Elucidator]

The download speed number is "network traffic bandwidth usage -- down", and is only used to measure the actual network traffic.
Disk space affects actually installing the download, but not the speed. You get errors if it is too full, but it doesn't affect network traffic bandwidth.

DL speed is affected by a lot of things on your system, including CPU Offloading, which as the name suggests, passes on tasks normally handled by your CPU to the Network Interface.
That CPU could be running in a lower power usage setting (power saving).
Heck, even the realtek chip or whatever you use also has its own green power settings..
I suspect that this is affecting the DL speed.

https://helpdesk.flexradio.com/hc/en-us/articles/202118518-Optimizing-Ethernet-Adapter-Settings-for-Maximum-Performance

[HIVEmind]

Get water cooling, if your computer is fairly recent. Throttling is a pain and can ruin through put.

And keeping mind steam uses cpu threw put such as compression and network and hdd/ssd io. And disable wifi if you can, the radio uses cpu

[Satoru]

Your steam downloads are limited by

1) your CPU
2) your disk IO
3) your anti-virus
4) your ISP

Pick one

Because its not steam

100MB/sec from a local Steam CDN

https://steamcommunity.com/sharedfiles/filedetails/?id=3117196527

Pulling 500 Mbps across a trans Atlantic line from France to the USA

https://steamcommunity.com/sharedfiles/filedetails/?id=3159686625

Pulling 350 Mpbs from Australia to the USA

https://steamcommunity.com/sharedfiles/filedetails/?id=3150748442