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Thread: possible upgrade...

  1. #1
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    • Elspuddy's system
      • Motherboard:
      • GIGABYTE GA-970A-DS3 AMD 970A
      • CPU:
      • AMD Phenom II X6 1075T 3.0GHz
      • Memory:
      • 14 gig
      • Storage:
      • Samsung 870 (128)ssd 2x1.5 tb, 2 of Seagate Barracuda 3.5 inch 2TB 7200 RPM 64MB (raid 0)
      • Graphics card(s):
      • EVGAC GeForce GTX 970 superclocked
      • PSU:
      • CORSAIR CX 750 WATT MODULAR PSU
      • Case:
      • NZXT phantom
      • Operating System:
      • windows 8.1
      • Monitor(s):
      • LG 32" tv , LG 22" montor
      • Internet:
      • 155 meg virgin cable

    possible upgrade...

    Sisters kid is thinking of upgrading his gfx card and I'm thinking of nabbing his old one a 6780 diffent brand then mine ,now I've got a 650w psu could it run two 6870's in sli or would I have to get a beefer psu ??

  2. #2
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    • kompukare's system
      • Motherboard:
      • Asus P8Z77-V LX
      • CPU:
      • Intel i5-3570K
      • Memory:
      • 2 x 8GB Crucial Ballistix Elite PC3-14900
      • Storage:
      • Crucial MX200 | Sandisk Extreme 120GB SSD | WDC 1TB Green | Samsung 1Tb Spinpoint
      • Graphics card(s):
      • Sapphire R9 290 VaporX 7950
      • PSU:
      • Antec 650 Gold TruePower (Seasonic) or Seasonic SII-330
      • Case:
      • Aerocool DS 200 (silenced, 53.6 litres)l)
      • Operating System:
      • Windows 10-64
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    Re: possible upgrade...

    Think that entirely depends on the quality of your 650W supply. Techpowerup managed to get their 6870x2 to draw maximum of 353W using the powerhug virus Furmark, but 245W was their more realistic max draw running games:

    http://www.techpowerup.com/reviews/P...870_X2/25.html

    You didn't mention the rest of your specs but gaming should be around max 260W or so(note that their single 6870 is 128W: one x2 card should generally draw a bit less than two more normal ones), so you should be fine.

  3. #3
    Senior Member
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    • Elspuddy's system
      • Motherboard:
      • GIGABYTE GA-970A-DS3 AMD 970A
      • CPU:
      • AMD Phenom II X6 1075T 3.0GHz
      • Memory:
      • 14 gig
      • Storage:
      • Samsung 870 (128)ssd 2x1.5 tb, 2 of Seagate Barracuda 3.5 inch 2TB 7200 RPM 64MB (raid 0)
      • Graphics card(s):
      • EVGAC GeForce GTX 970 superclocked
      • PSU:
      • CORSAIR CX 750 WATT MODULAR PSU
      • Case:
      • NZXT phantom
      • Operating System:
      • windows 8.1
      • Monitor(s):
      • LG 32" tv , LG 22" montor
      • Internet:
      • 155 meg virgin cable

    Re: possible upgrade...

    sorry my psu is a 650W Corsair TX650 V2 80PLUS Bronze Power Supply , the rest of my system specs are listed under my system

  4. #4
    Senior Member
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    • kompukare's system
      • Motherboard:
      • Asus P8Z77-V LX
      • CPU:
      • Intel i5-3570K
      • Memory:
      • 2 x 8GB Crucial Ballistix Elite PC3-14900
      • Storage:
      • Crucial MX200 | Sandisk Extreme 120GB SSD | WDC 1TB Green | Samsung 1Tb Spinpoint
      • Graphics card(s):
      • Sapphire R9 290 VaporX 7950
      • PSU:
      • Antec 650 Gold TruePower (Seasonic) or Seasonic SII-330
      • Case:
      • Aerocool DS 200 (silenced, 53.6 litres)l)
      • Operating System:
      • Windows 10-64
      • Monitor(s):
      • 2 x Dell P2414H

    Re: possible upgrade...

    Quote Originally Posted by Elspuddy View Post
    sorry my psu is a 650W Corsair TX650 V2 80PLUS Bronze Power Supply , the rest of my system specs are listed under my system
    Oh, sorry. Think you should be fine: if we take the 1075T's power consumption from Hexus's 1075T review (full system already with a HD5870):


    That's at the mains so PSU efficiency comes into that - so possible more like a 150W load on the PSU itself. But anyway lets be generous and round that up to 180W and add two HD6870@130W brings us to a total 440W. Plus a few W more for your HDDs but chances are the system will seldom actually have 100% CPU, GPU and HDD usage so even 450W is something you are unlikely to actually ever draw.

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