Laptop pulling 1.2GBPS, desktop cannot break 700MBPS through same LAN cable

lexayellerhay · Oct 24, 2018

Hi everyone! I was wondering if anyone has any insight as to why my desktop is pulling 500MBPS less than my Laptop? I’ve updated the Ethernet drivers to the newest, and nothing seems to be helping!

Running the connection through a CAT7, my laptop is consistently getting 1.2GBPSz When I speedtest my desktop, and it will not go above 700MBPS through the same cable.

What’s even weirder is a I have a dumpster fire computer I use for testing that is also pulling 1.2GBPS

MoBo: ASUS Z270E

Any insight as to what could be causing the throttle would be awesome! The MoBo uses Intel Ethernet Chipset

jsmithepa · Oct 24, 2018

I don't buy those numbers. Unless your laptop has a 10GBE NIC, it should not be able to go over 1gig.

derekullo · Oct 24, 2018

jsmithepa :

CAT7 is indeed rated for 10 gigabit ethernet.
https://en.wikipedia.org/wiki/ISO/IEC_11801#CAT7

But having said that this doesn't make sense unless you understand 500MBPS as literally 500 megabytes per second and 1.2GBPSz as 1.2 gigabytes per second.

My only guess is the laptop has an NVME ssd that is able to write at 1.2 gigabytes per second, which would be easy for something like a Samsung 970 EVO.

Whereas the desktop has a slower rated ssd that tops out at 700 megabytes a second.

boju · Oct 24, 2018

Me neither. Laptop specs?

https://ark.intel.com/products/82186/Intel-Ethernet-Connection-I219-V

Based on z370E network controller is only 1GbE

How are you testing network speed?

Also get your terminology right, not GBPSz or MBPS, both doesn't make any sense.

1Gbps = 125MB/s
1.2Gbps = 150MB/s

125MB/s is very unlikely even on a 1GbE nic even if have SSDs and Cat 7 and impossible for 150MB/s unless 10GbE which your laptop may have but your desktop doesn't.

If mean 700Mbps = 87.5MB/s your desktop is restricted to, it could mean your storage drive isn't capable. But dont know how you're testing network speeds.

boju · Oct 24, 2018

derekullo :

jsmithepa indicated network card, he never mentioned cable being the limitation.

derekullo · Oct 24, 2018

boju :

True but him mentioning cat7 cable specifically reinforces that he means a 10 gigabit connection or at least one higher than 1.2 gigabit.

We are making a lot of assumptions here without more information.

jsmithepa · Oct 24, 2018

derekullo :

People buy "better" cables all the time wo needing it. If he's paying for >1gig service he would be complaining about that, I would.

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