Question Is 750W PSU & MSI Z270 m3 Gaming compatible with RTX 3080?

[cagdas21]

750W power supply and
MSI Z270 m3 Gaming

I got some questions;

1. compatible with RTX 3080 ?
2. i have GTX 1070 can i make them work together ?
3. and what do i need for not having problems in future ?

 

[alexbirdie]

An 850w Seasonic Focus Plus Gold is most definitely not "dirt-tier".

Yes.

And a PSU is the most important part of a PC. A bad one can cause a lot of instabilities, random crashes and so on. It can even damage motherboard or other components.

And as the moderator told you: go for 3700x instead of 3800x.

 

[johnsoner13]

An 850w Seasonic Focus Plus Gold is most definitely not "dirt-tier".

I never said it was. You clearly haven’t read the entire thread

 

[bignastyid]

I never said it was. You clearly haven’t read the entire thread

I've read the thread, but with no quotes your post could easily be misconstrued that the Seasonic mentioned before your post was "dirt-tier" so I added clarification for the OP and future readers.

 

[logainofhades]

Seasonic Focus Plus Serisi 850W 80Plus Gold Güç Kaynağı
for 1779₺ ( around 233$ )
found a cheap one from amazon.com.tr

That would be an excellent choice.

 

[sebbiep]

1. Yes, you can put an rtx 3080 on a board from 2008 and itll work just fine, with just being speed bottlenecked by the old cpu. As for the psu, as long as its a good quality unit, the wattage is enough, even with a good cpu.

2. If youre talking about SLI, then no. only the 3090 has SLI support (3080 does not), and SLI is only possible when 2 cards are identical. (meaning 3090 with 3090 and 1070 with 1070.)
If youre talking about gpu passthrough, for a vm or something, then yes.

3. what kind of problems?
the best cpu in that motherboard is an i7 7700k, which is still okay for gaming, but is pretty slow with only 4 cores in this day and age, so it'll probably be a bottleneck in a few years.

I have i7 7700k on Z270 and thinking about upgrading 1080Ti to 3080, I'm interested in CPU bottlenecking. I looked at many tests online and they all point to 0-10% difference in frame rates between 7700k and 9700k. Most games are in 0-5% range FPS loss, very few offer 10% penalty. I'm not keen to upgrade mobo+CPU+RAM for 3% gain in framerate (I'm super happy with my setup at the moment), hence my question: is your assumption on CPU bottlenecking based on specific tests/scenario (can you link or elaborate on them) or common sense opinion?

On a side note I'm underwhelmed with new CPUs performance gains over previous generations. 4% performance gain between 7700k and 9700k:
https://cpu.userbenchmark.com/Compare/Intel-Core-i7-7700K-vs-Intel-Core-i7-9700K/3647vs4030

Good video demonstrating differences across 8 games - note this is RTX2080 so situation may look worse on RTX3080:

View: https://www.youtube.com/watch?v=MTL95WnNhCc