Live data from Hacker News

Raspberry Pi 4

raspberrypi.org

371–380 of 859 posts

Re: Raspberry Pi 4

#372
post #46

Depending on the purpose, for example if somebody just wants a compact home cloud, the Odroid HC2 could also - still - be considered: https://www.hardkernel.com/shop/odroid-hc2-home-cloud-two/ - Half the RAM but double the cores. I'm waiting for some benchmarks to see if the RPi4 is faster and by how much. - Also Gigabit Ethernet and it works great. My downloads are always at 108-111MB/s for the whole transfer. - Not…

I had an Exynos 5422, and when it came out it was a great card, however, nowadays, it's old generation - it consumes more and it's less performing than the latest archictures (A7x). "Double the cores" is not a valid consideration - 4+ core configurations typically have 2/4 cores (the 5422 has 4) with a high-powered architecture, and the remainder with a low powered one. Compare for example the XU4 with the N2 - the N…

It does at least need a heatsink. Though it will function without it, you may get temperature warnings, and it will run hot enough to significantly reduce component life. I've also hooked an old PC case fan to the GPIO pins or a USB port, and it runs slower (5V vs the 12 it expects) but does the job fine.

Re: Raspberry Pi 4

#373

Earlier quoted context omitted.

I hear you, just bought 4 rpi 3 b+ for a k8s cluster last week and this drops today. Urgh.

I hit this with the release of the model 3. But it is sort of refreshing not to have the early announcements and then wait for ages for the actual release. And to then either have further delays or find a half finished product that was rushed out to meet some promised deadline. Plus I like waking up to surprise rpi announcements!

Oh absolutely! This is great news!

Just means i can start planning my upgrade before ive even built the first version lol

Re: Raspberry Pi 4

#374

Earlier quoted context omitted.

If the screen is large enough about everyone gets 4k eyeballs.

I have a 4K-capable 40 inch TV in a standard living room (for Europe). 4K videos look slightly crispier than full HD ones. While I could have a slightly larger TV, I think that for typical domestic use 4K's improvement is marginal because people are not sitting 50cm from the screen and room sizes are limited. Really, so far the top benefit has been that I could tell my wife: "Look, if I move right up to the screen I…

A 40 inch TV is on the small end for 4K having any real benefit (at least at a normal living room viewing distance).

Re: Raspberry Pi 4

#375
post #103

Earlier quoted context omitted.

The Raspberry Pi 4 B uses ARM VideoCore IV. As far as I can find HDR will only come in the updoming VideoCore V. So no. No HDR yet.

That's really too bad. It makes the 4K support useless for building an HTPC, which is a common use for the Pi. As far as I can determine, several of their competitors already support 10bit decoding, although specifics (about stable HDR support) are sometimes hard to come by.

I'm not sure I'd use a pi has an HTPC for true blue-ray type 4K. Not to ding it, and I'm very excited (and happy to be proven wrong), but I'm not sure it will have the performance for that. I expect quite a bit will depend on whether or not someone puts in the software optimization work, as I remember how powerful PCs couldn't decode what they can on today's codecs a few years back. But we'll see.

I guess maybe if you added a heatsink and/or fan? I'd be a bit concerned about component life, taxing it that hard.

Oh yeah, and I wanna see how this thing overclocks.

Re: Raspberry Pi 4

#377

Since the link appears to be down, you can find some good information here: https://www.tomshardware.com/reviews/raspberry-pi-4-b,6193.h... I was also looking on Canakit and it looks like the 4GB version is in pre-order to be delivered in mid July.

For those just wanting specs, here is a summary from the table from the article comparing it to RPI3 (left new):

CPU: 1.5-GHz vs 1.4-GHz (same cores)

RAM: selectable 1, 2, 4GB (depending on which version) vs 1 GB

Video out: 2 micro hdmi out vs 1 Max resolution 4K @60hz vs 2560x1600

USB: 2x3.0,2x2.0 vs 4x2.0

Ethernet: Gigabit vs 330MB

Wireless: Bluetooth 5.0 vs 4.1

Charging: USB-C vs USB micro

Power requirement: 3A at 5V vs 2.5A at 5V

Size/weight: 43g vs 50g

Note: somewhat skeptical on power draw, as RPI3 would occasionally spike higher than 3A, but we will see how it handles “brown outs”.

Either way, pretty excited :)

Re: Raspberry Pi 4

#378

Earlier quoted context omitted.

If the screen is large enough about everyone gets 4k eyeballs.

I have a 4K-capable 40 inch TV in a standard living room (for Europe). 4K videos look slightly crispier than full HD ones. While I could have a slightly larger TV, I think that for typical domestic use 4K's improvement is marginal because people are not sitting 50cm from the screen and room sizes are limited. Really, so far the top benefit has been that I could tell my wife: "Look, if I move right up to the screen I…

For those of us who aren't there, can you clarify how big a standard European living room is? This has nothing to do with the resolution stuff you mentioned, just curious.

Re: Raspberry Pi 4

#379
post #97

I'm super excited as well. I figured out the secret sauce to get a low latency kernel build I was able to get down to 20ms latency but I'm excited to see if this can't get down to 10ms even though 20ms is acceptable low audio latency, already with only 1 gig of ram on a pi3 ardour is usable for multitrack recording, excited to see how this does with 4 gigs.

I'm going to fourth the below suggestion. I'd love to see some more about how you achieved this.

Re: Raspberry Pi 4

#380

This is the death knell for x86 PCs for the consumer market. No regular user needs more than this. Developers and hardcore gamers will be the only ones left on x86. Intel will be a shadow of themselves soon. They have did such a bad job at diversifying.

This is probably less of a threat to the consumer market than the endless stream of cheap ex-corporate x86 desktops which are adequate for basic use has been when combined with the long useful lifespan of hardware in the post-Moore's Law era.
Post reply on HN