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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.


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Old 07-17-2019, 11:59 AM   #1
Registered: May 2018
Posts: 86

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Video : Review of the Raspberry Pi4B - It's a monster...

Hi all.
I've made a review video about the Raspberry Pi 4B.
Here it is.

I've found out some nice things I didn't see in any other review videos.
The performance is great, ram is so much better, USB3, gigabit ethernet...

But it also has some problems, still undervolting with most PSU's. You need a heatsink+fan for good performance.

Here all my test results.
Greetings, NicoD

Raspberry Pi4B

Raspbian Buster
Blender results
Default clock 1.5Ghz
No fan Tinker heatsink : 1h57m23s
3v fan Tinker heatsink : 1h29m07s

OC clock 1.75Ghz 3V fan : 1h19m25s
1.85Ghz 3V fan : 1h14m05s
2.00Ghz 3V fan : 1h10m24s
2.00Ghz 3V fan : 1h09m39s gpu_freq=600 sbc-bench

Ubuntu arm64
default clock 3v fan Tinker heatsink : 1h21m05s
1.75Ghz 3v fan : 1h08m42s
2Ghz 3v fan : 1h00m12s sbc-bench

Big Tinker heatsink no fan idle : 58C
maxed out : 83C heavy throttle to 1000Mhz after about 3 minutes
3V fan idle : 37C
maxed out : 50C
OC 1.75Ghz 3V fan maxed : 55C
OC 1.85Ghz 3V fan maxed : 57C

Power consumption
Default idle no wifi : 0.64A
Default idle with wifi : 0.7A
Default maxed : 1.3A
2Ghz over voltage 4 GPU 600Mhz idle : 0.8A
maxed : 1.85A (2A with fan)
Transfer speeds
USB3 with SSD : 394MB/s
SD-cardreader read : 40MB/s
SD-cardreader write : 20MB/s
WIfi : 24Mbps

Governor again shows falls frequency numbers.
vcgencmd measure_clock arm <- show the real ferquency

Undervoltage problem is still there. It requires +5.15V or it's undervolting and clocked to 600Mhz



SoC : Broadcom BCM2711B0 quad-core A72 1.5Ghz (up to 2Ghz)
GPU : VideoCore VI @ 500Mhz
HDMI : dual micro HDMI 4K 60Hz + 1080p or 2x 4K 30Hz
USB : 2x USB 3.0 / 2x USB 2.0
Ethernet : Gigabit Ethernet
Old 08-02-2019, 12:54 AM   #2
Registered: Jan 2016
Location: Montreal,CAN
Distribution: Suse Leap 15.1 & Win10
Posts: 110

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Nice info Nico !
Old 08-02-2019, 04:13 AM   #3
LQ Guru
Registered: Sep 2011
Location: Upper Hale, Surrey/Hants Border, UK
Distribution: Mainly Devuan with some Tiny Core, Fatdog, Haiku, & BSD thrown in.
Posts: 5,176

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It'll be great once they sort out the software drivers, but until then, mine is back in it's box.

EDID not working - no USB booting - I need both.


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