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What graphic card did I buy? R9 280 or 7950

post #1 of 17
Thread Starter 
Hello Everyone,

Today I bought 5 second hand graphic cards. I bought them from a mining rig that is only 3 months old.
The seller claimt that he sold the Club3d 7950. But when I installed one of the graphics cards GPU-Z called it a R9 200 series.
There are a couple of interesting things I noticed:

1. 2x 6 pin connectors
2. Stock frequencie = 930 mhz core clock
3 No backplate on the card
4 No RoyalKing logo on the card

Here are some pictures i took:




I did some research and I noticed that the Club3D RoyalKing has a 930mhz boost clock, but that card has a Royal King sticker.
The R9 280 RoyalKing cards have a 960 mhz clock, and they have a 6+8 pin connector instead of 2x 6 pin.

Can you guys help me with this? I really want to know which type it is, because I will be selling some of these cards again.
Thank you!
post #2 of 17
this?
Edited by zoid.srg - 4/26/14 at 5:37am
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post #3 of 17
Welcome to OCN.
If you list your parts that would make it somewhat easier to help you out
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post #4 of 17
Well, R9 280 (non-X) is essentially a 7950 rebrand, could it be that your card is a 7950 running R9 bios or so?
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post #5 of 17
Thread Starter 
@zoid, I think it is that gpu actually. But why does gpu-z detect it as a 280. It also says that directx 11.2 is supported.
@Shilka, thank you and I will do that.
@Kuivamaa, I don't believe the bios is changed. The person I bought these cards for wouldn't have done it, he bought the mining rig from a company so than maybe they did something. Also I don't think that it is possible to flash a 7950 tot r9 280.
post #6 of 17
maybe they were intended to be sold as 280's but were rebranded to 7950's. The only 280 on club3d's webpage is the royalking, witch have a slightly higher clock speed. My theory is that the cards didnt reach that frequency while staying within the power limits and thus was rebranded as 7950's. It would take minimal effort for the manufacturer to change this arround and they would still be able to sell the cards that way.
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post #7 of 17
Thread Starter 
@ zoid, that is a good theory,since the first card didn't overclock to well. But the second card I tried does 1200mhz core on 1.25V. I think that is decent overclock. By the way, the cards are 3 months old so that strengthens your theory.
post #8 of 17
What PSU do you have?
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post #9 of 17
Quote:
Originally Posted by shilka View Post

What PSU do you have?
Please respond to this man. There is a very good chance that either a fire storm or electrical surge can happen.
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post #10 of 17
Thread Starter 
My psu is a corsair cx750m, it is just 3 months old.
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