5070Ti takes in 300W and there are some models that can increase the power limit to 350W or even 400W, all these and there are still no reported instances of the melting issue.
any card below 400W will have a low to no chance of melting.
im aware that there is a reported case of a 9070xt nitro melting, even though that card is rated at 330W, it can run on average about 350W and there are some instances where it spiked up to 500W, i believe the spikes contributed to the melting. a 5070ti is more efficient than the 9070xt so it usually consumes about 250W of power
5070ti is probably the safest in the entire line up.
5090 put 600 watts through the sus power plug that should've probably been rated for 400 watts at the most without load balancing.
5080 shares the same PCB and 15/16 phase VRM as the 5070ti but puts more power through them.
5070 puts 250 watt through 9 phase VRM and generates a lot of heat on the PCB.
5060 ti have even worse power/VRM ratio on a even smaller PCB.
It's probably safe per say, but the 60ti puts 200 watts through a 6 phase vrm on a very tiny PCB. It tends to generate a lot of heat on the pcb itself, and it might or might not lead to problems down the road.
From a pcb design point, the older 1000s to 3000s had significantly larger PCBs and more robust power delivery, and they had proven to last a very long time. I would be curious if they age worse.
I have not taken a deep dive on AMD's power delivery, but looking at the [PCB breakdown](https://www.techpowerup.com/review/asus-radeon-rx-9070-xt-tuf-oc/5.html), it looks like about 300- 400 watts through a 10+3 phase VRM. I don't really consider that a good ratio but it is divided into 2 rows on a bigger PCB, so I don't know if it really has a heat issue.
For comparison, the 3080 had a 19 phase VRM for 330-380 watts. I'm not sure why we are going with worse PCB designs over the years.
I think I’ve heard like one or two single instances of a card getting fried that wasn’t a 4090 or 5090. The connector is much safer when it isn’t being pushed to the limit.
I was remembering one report of a 12 pin melting on a 5080 and one from a 9070 XT SKU with significantly increased power limit.
Kinda glad my 9070 XT is a 3 x 8 pin variant with stock TDP.
5070Ti takes in 300W and there are some models that can increase the power limit to 350W or even 400W, all these and there are still no reported instances of the melting issue. any card below 400W will have a low to no chance of melting
The max amps for the 12VHPWR spec is 9.6a. 9.6a x 12v = 115w. So any card that has this connector that pushes more than 115w is at risk aka all cards. Only because there is no safety mechanism in place to prevent 1 wire from drawing all the power.
the melted connector issues is a 5080/5090 issue due to power draw
The 5070TI draws a max of 300W while the 80 goes up to 360W and the 90 goes up to an insane 575W
The plugs were just not made to handle that sort of wattage, especially on the 5090.
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