Can you confirm if the AdviceRM750X (2019) model is sufficient for 4080 units?
Can you confirm if the AdviceRM750X (2019) model is sufficient for 4080 units?
I'm planning to upgrade my GPU soon from a 1070 to a 4080, which is really stretching my budget. I still have the Corsair RM750X (V2 from 2019) in this build. Should I invest in at least 850W of power supply or stick with my current 750W unit? My PC components are listed here, and the estimated TDP comes to around 670W.
good news is the RMx(2018) power supplies are among the best mainstream PSUs of the past ten years.
the RTX 4080 uses about 300w during gaming, but the 13600K draws only around 100w – for gaming it’s a bit more, roughly 450-500w overall.
including the rest of your system, your total power draw while gaming should stay between 450 and 500w.
the 13600K consumes only about 200w when running CPU-heavy tasks or stress tests.
though your GPU won’t be drawing 300w during those sessions, you’re still within acceptable limits.
to reach close to 650w, you’d need to push both CPU and GPU to their maximum settings at the same time.
generally speaking, the RTX 4080 and 13600K are getting closer to the limit, but not quite reaching a point that would strain your power supply.
in any case, consider upgrading your boot drive – the Kingston A400 SSD is too slow and too small for today’s needs.
switch to a WD Black SN770 1-2TB or a Kingston KC3000 1-2TB and use it as your main drive.
Thank you for your consideration. I'm trying to be careful and think about the risks. If my PC suddenly increases its power draw, like my RM750X going from a normal 700W to 700W, would there really be any danger of damaging any components? I'm worried about what could happen if it went up to 700W instead of the expected 3000 dollars in repairs. I'd rather wait and invest 200 dollars in a better power supply just to avoid such a costly mistake, even though I'm not very experienced with power usage. If it means my PC shutting down unexpectedly, I could probably wait for a new PSU.
750w is its specified output – indicating it must be able to provide steady 750w at around 50°C (continuous, not peak).
All high-quality units perform well in delivering continuous power between 40-50°C.
This means they can manage 700-750w without problems even when temperatures rise.
Superior power supplies often exceed their rated capacity by 50-100w during brief bursts.
They are designed to protect themselves and shut down safely when limits are approached.