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KingDark
Journeyman III

can Cooler Master DPS-750AB-40 D 750W ATX Platinum Power Supply power an rx 7900xt

Hello, my current setup is:

CPU: i7-12700
GPU: RX 6650 XT
RAM: 64GB (4 kits of 16GB Kingston Fury RGB 3200Hz DDR4)
Motherboard: B660 ASUS Prime D4 Plus
Case: Antec NX410 with 3 case fans
Heatsink: Thermalright Peerless Assassin 120 SE
PSU: Cooler Master DPS-750AB-40 D 750W ATX Platinum Power Supply
Storage: 2 NVMe 1TB each
WIFI Card: Yes

 

Given these specs, can I replace my RX 6650 XT with the RX 7900 XTX reference model from XFX? They say the required PSU is 800W, but mine is 750W Platinum. Mainly, I will be using it to run local LLM for work and light gaming at 1080p.

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2 Solutions
FunkZ
Grandmaster

Pick up an inexpensive Kill-A-Watt (or similar) AC outlet meter, so you will know exactly how much power your system is using.

I have a Silverstone Strider Gold 750W and an AMD reference 7900XT and my draw at the outlet on a full load (100% CPU and GPU) is less than 500W. That's not typical gaming load, that is 100% benchmark load.

 

Ryzen R7 5700X | B550 Gaming X | 2x16GB G.Skill 3600 | Radeon RX 7900XT
Ryzen R7 5700G | B550 Gaming X | 2x8GB G.Skill 4000 | Radeon Vega 8 IGP
Ryzen R5 5600 | B550 Gaming Edge | 4x8GB G.Skill 3600 | Radeon RX 6800XT

View solution in original post

Earnhardt
Grandmaster

Running only my Case through my UPS, Running Time Spy DX12 @1440,I am Pulling just under 600 watts

with this config:

Corsair 5000D Airflow Case
AMD Ryzen 5800X3D 8C 16T
ASUS Rog Crosshair VIII Dark Hero X570
ASUS TUF RX7900XTX 24G OC
Corsair Vengeance RGB Pro 64GB DDR4 3600MHz
2-Samsung 4TB 990 PRO's m.2 SSD
1-Samsung 1TB 860 EVO SSD
1-Samsung 2TB 870 EVO SSD
Corsair HX1200i PSU w/custom black cables
Corsair H170i Elite LCD Display AIO
6-Corsair RGB LL120 fans
3-Corsair RGB LL140 fans
Creative Soundblaster Z

 

I prefer to have a great amount of Overhead to avoid issues with spiking.

View solution in original post

2 Replies
FunkZ
Grandmaster

Pick up an inexpensive Kill-A-Watt (or similar) AC outlet meter, so you will know exactly how much power your system is using.

I have a Silverstone Strider Gold 750W and an AMD reference 7900XT and my draw at the outlet on a full load (100% CPU and GPU) is less than 500W. That's not typical gaming load, that is 100% benchmark load.

 

Ryzen R7 5700X | B550 Gaming X | 2x16GB G.Skill 3600 | Radeon RX 7900XT
Ryzen R7 5700G | B550 Gaming X | 2x8GB G.Skill 4000 | Radeon Vega 8 IGP
Ryzen R5 5600 | B550 Gaming Edge | 4x8GB G.Skill 3600 | Radeon RX 6800XT
Earnhardt
Grandmaster

Running only my Case through my UPS, Running Time Spy DX12 @1440,I am Pulling just under 600 watts

with this config:

Corsair 5000D Airflow Case
AMD Ryzen 5800X3D 8C 16T
ASUS Rog Crosshair VIII Dark Hero X570
ASUS TUF RX7900XTX 24G OC
Corsair Vengeance RGB Pro 64GB DDR4 3600MHz
2-Samsung 4TB 990 PRO's m.2 SSD
1-Samsung 1TB 860 EVO SSD
1-Samsung 2TB 870 EVO SSD
Corsair HX1200i PSU w/custom black cables
Corsair H170i Elite LCD Display AIO
6-Corsair RGB LL120 fans
3-Corsair RGB LL140 fans
Creative Soundblaster Z

 

I prefer to have a great amount of Overhead to avoid issues with spiking.