rtx 3080 upgrade

Aug 18, 2025
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Hi,

Want to upgrade rtx 3080 to rtx 5070ti for Battlefield 6 game in 1440p to get enough fps for 165Hz monitor. Rest of pc is ryzen 7 5800x, motherboard TUF Gaming B550 pro, RAM 16gb. Motherboard is compatible, correct? Cpu is good enough for that gpu?
 
Cpu is good enough for that gpu?

CPU should be fine with the GPU. Especially at 1440p
it may have issues at 4k.
Same combo: link

Motherboard is compatible, correct?

motherboard is compatible in that all GPU are backwards compatible. Card is PCIe5 but will run perfectly fine on a PCIe4 motherboard. No GPU actually need all the bandwidth PCIe5 provides yet... or even 4.

AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
Motherboard link

I would confirm you have the right cables on PSU before upgrading. Both work on 750watt PSU but the 5070 TI appears to need a 12VHPWR cable to power it, the 3080 probably used 6 or 8 pin
You may need to Upgrade PSU to a ATX 3.1 PSU
 
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Aug 18, 2025
2
0
10
CPU should be fine with the GPU. Especially at 1440p
it may have issues at 4k.
Same combo: link



motherboard is compatible in that all GPU are backwards compatible. Card is PCIe5 but will run perfectly fine on a PCIe4 motherboard. No GPU actually need all the bandwidth PCIe5 provides yet... or even 4.

AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
Motherboard link

I would confirm you have the right cables on PSU before upgrading. Both work on 750watt PSU but the 5070 TI appears to need a 12VHPWR cable to power it, the 3080 probably used 6 or 8 pin
You may need to Upgrade PSU to a ATX 3.1 PSU
i have Corsair RM850 bought in 2021. Do i have this connector, cables or whatever i need?
 
Corsair RM850

The following PSUs are ATX 3.1 with PCIe 5.1:

RMe Series
RMx Series
HXi Series
RMx SHIFT Series
SF-L Series
SF Series

They suggest to look at here:
I did but its likely I chose wrong case and GPU. They actually say you could use a 650 but going backwards in power doesn't make sense, never know what future holds.

Although rme are 3.1 they don't have the right cables. - i looked
You probably want one of these:
I had an RM1000x in my last PC, dead quiet.

it seems that although the cards want a 16pin cable, the new standard is 12 pin and should work with GPU:
4 of the pins were just data, I assume its done another way now.
 
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