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

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 ?
6 answers Last reply Best Answer
More about ati amd radeon 7770 ddr5 run 450w psu
  1. If it has decent amperage on the +12v rails
  2. Best answer
    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.
  3. 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 :)
  4. 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.
  5. 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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