Will a 750w power supply be enough to power an i7 13700kf and rx 7900 xt?

[srrrx]

I recently ordered parts for a new pc which included the i7, 990 pro 2tb, vegance 32gb ram at 7200mhz, b760 gigabyte x ax motherboard, dark rock 5 cooler and corsair rm750x gold. I was supposed to order a monitor and gpu in a separate order, and because of that my plans changed a bit. I was supposed to get an 4070 super but decided that an 7900xt is a much better deal.

Now, 7900xt sucks alot more power than nividia, and intel cpus  compared to amd. When i use sites like pc builder it estimates 674 watts to power this pc with my gpu changes. It estimates gpu uses 300w, and for the cpu 125w. When i googled power consumption for my gpu and cpu, i found out the gpu uses sometimes up to 380w and apparently the i7 can go up to 250watts.

Will this psu be enough? This is my first build. Truly i have no idea how accurate are sites like pc builder, how much they account for aditional power consumption when overclocking. Hell i wouldn't know if this aditional power consumption info i got from google is true.

I need help from someone with experience with similar build.

Thank you for time!

[GuiltySpark_]

7900xt is a 300W TDP card (advertised) and with the current state of Intel motherboards, that 13700kf will likely have no power limits set by default (you'll need to fix this yourself) and will likely push to over 250W under an all core load. 

 

If the PSU is good, which that one is, and you properly setup your motherboard (as it'll come incorrectly setup out of the box), you should be fine. 

[srrrx]

7 minutes ago, GuiltySpark_ said:

7900xt is a 300W TDP card (advertised) and with the current state of Intel motherboards, that 13700kf will likely have no power limits set by default (you'll need to fix this yourself) and will likely push to over 250W under an all core load. 

 

If the PSU is good, which that one is, and you properly setup your motherboard (as it'll come incorrectly setup out of the box), you should be fine. 

7 minutes ago, GuiltySpark_ said:

7900xt is a 300W TDP card (advertised) and with the current state of Intel motherboards, that 13700kf will likely have no power limits set by default (you'll need to fix this yourself) and will likely push to over 250W under an all core load. 

 

If the PSU is good, which that one is, and you properly setup your motherboard (as it'll come incorrectly setup out of the box), you should be fine

Should i worry about power usage if i wanted to overclock cpu and gpu?

Thanks for the help

[GuiltySpark_]

Just now, srrrx said:

Should i worry about power usage if i wanted to overclock cpu and gpu?

Thanks for the help

Your won't be overclocking the CPU with an air cooler (not that you need to anyway). If it'll make you feel better you can swap out for an 850W. 

 

I ran a 3090 @ 400W constant with a 750W SFX PSU for two years, but the CPU was a 5800x that peaked at say 90W in games, 150W in benchmarks. RM750x is a good unit and I don't expect you to have a problem. 

[ki8aras]

27 minutes ago, srrrx said:

Should i worry about power usage if i wanted to overclock cpu and gpu?

Thanks for the help

i was running a 7900xtx on a 750w psu with no problem so you should be fine

[podkall]

1 hour ago, srrrx said:

Should i worry about power usage if i wanted to overclock cpu and gpu?

Thanks for the help

modern hardware is already running so fast any OCing is just a for fun activity that doesn't bring much meaningful performance increase

[Somerandomtechyboi]

13 minutes ago, podkall said:

modern hardware is already running so fast any OCing is just a for fun activity that doesn't bring much meaningful performance increase

its not like 10+ years ago where you could do stuff like this

Spoiler

 

nowadays youd be lucky to even get a 200% oc on rams (ex 5600 hynix a die -> 11200) let alone trying to get any decent oc out of the cpu when those are already being pushed to the limit with those new boost algorithms

 

im pushing my hardware for fun hence screenshotting 3400 ddr3 on a single stick and 3232 ddr3 on three sticks or just doing dumb shit like trying to stabilize ddr3 2800 on 3 sticks (this is driving me insane) but even for the non oc enthusiast that doesnt push the hardware to its limits and then some youd be stupid to leave an old 775 1366 1156 stock cause you know theyll do atleast 3.8-4.2ghz on most cpus compared to their really slow ~3ghz ish or lower stock clocks then theres the good chips thatll clock even higher than that

 

on newer hardware you can expect 80% out of your hardwares capabilities stock and tuning is mostly just undervolting for better power efficiency

 

 

only interesting overclocking happens on rams but even then the imcs are still kinda shit atm with the best of em being 8000g imcs capable of abit over 10000 ddr5, ryzen 7000 maybe you can run at 8000 desync uclk but thats just not worth the effort for performance and youd be better off with 6200-6400, 14th gen anywhere from 7600-8800 cause imcs are inconsistent asf, also they really suck at running quad rank for high density configs (128gb 192gb soon 256gb) where even skylake was still able to do that at 3600 ish and skylake is like 3rd gen ddr4 imc after haswell and broadwell e

 

im comparing to jedec where 5600 gets you 10000+ capable hynix a dies which seems to be the only high freq capable 16gbit ic atm, best imc can only just about do abit over 200% oc on a 5600 a die stick given alot of imc binning, even if im being conservative and consider the 4800 bin a die sticks (they do exist) still only 210-220%

 

the platform im on which is 1366 so i think this is the first ddr3 intel imc cause previous mem controllers were on the northbridge (p35/x48 and p/g/q4x) and yeah already doing over 200% ocs even on bloomfield, best w3503 i have does 3400 so thats a 255% oc on my 1333 gdies and i havent even done any real frequency runs with gulftown but thats because my w3680 is either trash or im being an idiot and not setting things right cause it refuses to post over 3300 even on single stick but should do 3500-3600 on air on a decent chip, and keep in mind that bloomfield is first gen imc with gulftown being a better version of it, imo ram oc gets pretty boring when you get stuck at an imc wall =p

 

but if were talking practical performance and not just funny frequency runs a generic xmp bin like 6000c32/30 will get you 80% of the way there in terms of performance and is by no means inadequate, your 7200 kit is already pretty decent and a tad faster than a 6400c32 kit, which means you dont have to ram oc for decent performance and thats how things have always been hence why you rarely ever see anyone do manual ram tuning cause its a pain in the ass with that many subtimings you have to tune (where most of the performance lies) and yes even if there is a gain there an xmp kit is still more than adequate for the average user and it only needs 1 click without stresstests and whatnot, so most of the time its either someone that wants to squeeze every last drop of performance out of their pc or an idiot like me that likes to do funny frequency runs and running 2.3v into my rams and 1.9v into the imc

[podkall]

1 hour ago, Somerandomtechyboi said:

but if were talking practical performance and not just funny frequency runs a generic xmp bin like 6000c32/30 will get you 80% of the way there in terms of performance and is by no means inadequate, your 7200 kit is already pretty decent and a tad faster than a 6400c32 kit, which means you dont have to ram oc for decent performance and thats how things have always been hence why you rarely ever see anyone do manual ram tuning cause its a pain in the ass with that many subtimings you have to tune

forget tuning to 7200, that stick could run 9000 and it wouldn't matter if the CPU's controller could handle max like 6400 on DDR5