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Can ATI/AMD Radeon HD 7770 1 GB DDR5 run with a 450W PSU

Last response: in Graphics & Displays
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October 19, 2013 10:45:42 AM

My current rig- Intel Core i3 3220 @3.3GHz .
ATI/AMD Radeon HD 6670 1 GB DDR3 .
Transcend 4 GB RAM 1333 MHz
Windows 7 Ultimate 64 Bit
Cooler Master Thunder 450W PSU
Gigabyte GA-H61M-S1 Motherboard

I'm trying to go for a Radeon HD 7770 but the only question I have is , can I get it running with a 450W PSU ?
a b À AMD
October 19, 2013 11:02:41 AM

If it has decent amperage on the +12v rails
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October 19, 2013 12:36:52 PM

The CoolerMaster Thunder 450W PSU RS-450-ACAB-M3 should be enough to replace with a HD 7770. It has two +12V rails with 21A@+12V1, 18A@+12V2. That would amount to 360W. That's sufficient for ur system.
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October 20, 2013 4:27:56 AM

chimera201 said:
The CoolerMaster Thunder 450W PSU RS-450-ACAB-M3 should be enough to replace with a HD 7770. It has two +12V rails with 21A@+12V1, 18A@+12V2. That would amount to 360W. That's sufficient for ur system.

Thank you fella ! I was also thinking about the HD 7850 . It has a 500W requirement but will it also run with a 450W PSU ? Thank you again :) 

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October 20, 2013 5:26:34 AM

karthik kher said:
chimera201 said:
The CoolerMaster Thunder 450W PSU RS-450-ACAB-M3 should be enough to replace with a HD 7770. It has two +12V rails with 21A@+12V1, 18A@+12V2. That would amount to 360W. That's sufficient for ur system.

Thank you fella ! I was also thinking about the HD 7850 . It has a 500W requirement but will it also run with a 450W PSU ? Thank you again :) 



Yeah, it will work, but i think u should go for GTX 650 Ti Boost 2GB GDDR5 since its cheaper and doesn't have significant performance diff with 7850. Also i'm saying yes to that the PSU will work only because u already own it and has sufficient amps on +12V rails for ur system to run. Else i would have recommended another PSU. The CoolerMaster Thunder series isnt reviewed by anyone i guess since it has 180 - 264 V input voltage and Americans have 120V. Be sure NOT to run any benchmark software on ur system.
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October 20, 2013 6:54:35 PM

chimera201 said:
karthik kher said:
chimera201 said:
The CoolerMaster Thunder 450W PSU RS-450-ACAB-M3 should be enough to replace with a HD 7770. It has two +12V rails with 21A@+12V1, 18A@+12V2. That would amount to 360W. That's sufficient for ur system.

Thank you fella ! I was also thinking about the HD 7850 . It has a 500W requirement but will it also run with a 450W PSU ? Thank you again :) 



Yeah, it will work, but i think u should go for GTX 650 Ti Boost 2GB GDDR5 since its cheaper and doesn't have significant performance diff with 7850. Also i'm saying yes to that the PSU will work only because u already own it and has sufficient amps on +12V rails for ur system to run. Else i would have recommended another PSU. The CoolerMaster Thunder series isnt reviewed by anyone i guess since it has 180 - 264 V input voltage and Americans have 120V. Be sure NOT to run any benchmark software on ur system.

I guess I'll have to stick to the HD 7770 then. It's just perfect for me.

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