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Need Advice for HD 7870

Last response: in Graphics & Displays
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April 8, 2012 4:09:13 PM

BUDGET RANGE : <USD 350
USAGE FROM MOST TO LEAST IMPORTANT : GAMING (BATTLEFIELD 3 , SYNDICATE , DIRT 3 ETC )

CURRENT GPU AND POWER SUPPLY : POWERCOLOR HD 6790 & COOLERMASTER REALPOWER 550W

OTHER RELEVANT SYSTEM SPECS : AMD PHENOM X4 955 BE , CORSAIR VENGEANCE 8GB , ASUS M5A97 , COOLERMASTER USP 100 CASE .

SLI OR CROSSFIRE : NO

RESOLUTION : 1920X1080

QUESTION : I'M THINKING TO UPGRADE MY GPU TO HD 7870 , AND WILL UPGRADE TO A BETTER PSU SOON(AFTER THE GPU) . SO , DOES HD 7870 WILL RUN WITH MY CURRENT PSU ? OR SHOULD I CHOOSE 7850 INSTEAD ?

More about : advice 7870

April 8, 2012 4:22:58 PM

Please, next time you post, use proper letters, not all caps like you did. When you post like that, it reminds you of a rage post :) .

I think you should upgrade your Power supply to decent one, I don't think it's going to run it. Or get the 7850 :) .
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April 8, 2012 4:24:15 PM

cooler master is definitely not the best psu maker but if that unit is working fine then don't change.550w is more than enough for single 7870.you will see a great difference with 7870.
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April 8, 2012 5:00:59 PM

refiillable : sorry :D  . i read those review for 7850 & 7870 and 7850 didnt perform well i think .

hellfire24 : yes , it's working fine for now .
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Best solution

April 8, 2012 5:15:37 PM

For a system using a single Radeon HD 7870 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 27 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Continuous Amperage Available on the +12V Rail(s) is the most important factor.

The CoolerMaster Real Power Pro 550W (RS-550-ACAA-A1), with its combined +12 Volt continuous current rating of 36 Amps and with two 6-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single Radeon HD 7870.
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April 8, 2012 5:32:05 PM

well answered k888 . tqvm . :D 
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April 8, 2012 5:33:15 PM

Best answer selected by fnafhan.
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April 24, 2012 12:52:57 AM

Im planning to upgrade from my gtx 460 se to a hd 7870 and i have a question. based on my pc spec, do you think there will be any bottlenecking or issues. Im planning on buying Sapphire HD 7870 OC: http://www.newegg.com/Product/Prod [...] 6814102983

My current spec:

AMD Phenom ii X4 810 2.6ghz

8GB 1066mhz ram

7200rpm 720gb hard drive

520w Antec High Current Gamer PSU

Also, I will be playing all my games on 1600 x 900, with everything in the game setting set to max or so. (example: AA).
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April 24, 2012 5:02:57 PM

You will receive bottlenecking issues from the CPU and the had drive. How do I know? I have a Sapphire 7870 OC edition and always see that when my games stutter, it's due to CPU or disk usage usually due to computing shadows or "seemlessly" loading new areas of the map. I have a 3.2ghz i7 quad core, 12gb ram, and 7200 rpm hard disk. I will tell you that I play at a resolution very similar to yours, 1680x1050. There isn't much you can do about this bottleneck as it is caused by poor programming and bad drivers, so I wouldn't worry too much about it. You'll still get great performance if you turn down shadows and other CPU intensive tasks.
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