Will 2xR9 290 Crossfire work with 750w PSU?
- Thread starter Dorby1988
- Start date
Solution
ifreestylin
Honorable
- Dec 28, 2012
- 991
- 0
- 11,160
Power consumption AMD Radeon R9-290
System in IDLE = 128W
System Wattage with GPU in FULL Stress = 372W
Difference (GPU load) = 244W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 254 Watts
Power consumption AMD Radeon R9-290 2-way Crossfire
System in IDLE = 130W
System Wattage with GPU in FULL Stress = 603W
Difference (GPU load) = 473W
Add average IDLE wattage ~20W
Subjective obtained GPU power consumption = ~ 493 Watts
Mind you that the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value not a precise measurement, albeit a very good one.
AMD Radeon R9 290 - On your average system the card requires you to have a 550~600 Watt power supply unit.
AMD Radeon R9 290 Crossfire - On your average system the cards require you to have a 800 Watt power supply unit as minimum.
Source
http://www.guru3d.com/articles_pages/radeon_r9_290_crossfire_review_benchmarks,4.html
System in IDLE = 128W
System Wattage with GPU in FULL Stress = 372W
Difference (GPU load) = 244W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 254 Watts
Power consumption AMD Radeon R9-290 2-way Crossfire
System in IDLE = 130W
System Wattage with GPU in FULL Stress = 603W
Difference (GPU load) = 473W
Add average IDLE wattage ~20W
Subjective obtained GPU power consumption = ~ 493 Watts
Mind you that the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value not a precise measurement, albeit a very good one.
AMD Radeon R9 290 - On your average system the card requires you to have a 550~600 Watt power supply unit.
AMD Radeon R9 290 Crossfire - On your average system the cards require you to have a 800 Watt power supply unit as minimum.
Source
http://www.guru3d.com/articles_pages/radeon_r9_290_crossfire_review_benchmarks,4.html
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