Radeon HD 7850 2GB... a few questions...

Slingshot1986

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Oct 15, 2013
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Hello GPU experts,

I have been hoping to buy a new core i5 PC for a few months now, but have had to come to terms with my limited budget, so can't just go all out and get one right away, so I've just upgraded my current PC with a new Gigabyte Radeon HD 7850 2GB (£120 on amazon). Before I ask my questions, my current system specs are:

CPU: AMD Athlon 64 3200+ 2.00Ghz
RAM: 4Gb
PSU: 500W
GPU: Gigabyte Radeon HD 7850 2Gb

Q1) With Battlefield 3 as an example, is my processor sufficient to play online on, say, medium settings? And will my new radeon work well together with my rather old processor? Other games have always played ok online, even with the older GPU I had before the radeon,(Geforce 7600GS) but I'm aware that I could do with a better processor.

Q2) When I get the new PC around Christmas time, it will be something like a core i5 with 8gb RAM. I plan to get a new PC with rubbish integrated graphics so it will be cheaper and so I can put the Radeon into it. What I'm wondering, is it possible to combine the integrated graphics with my Radeon 7850 2gb card?

So an example, if the integrated graphics on my new PC was 1gb, and I installed my radeon 2gb, is there a way to get to 3gb combined graphics memory, or does the card work alone and shut down the on-board integrated graphics once it's installed??

Someone said to me there is a way to combine them, but only if the integrated graphics is also AMD and the same series or something like that??

Please can someone kind and clever help me with my 2 questions??

Thanks very much, I appreciate your time, and I'm glad to have just joined and made my first post here at Tom's! Think I've picked a cool site for advice and info for the future!

Cheers all,
Stevo.
 

Metalrenok

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Sep 6, 2013
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1- BF4 is a processor hungry game, at least the beta! So you'll probably have a serious bottleneck, so its better if you use the new GPU with the new whole rig as well :)
2- No, you can't combine the i5 integrated with the new 7850, when you connect the display to the 7850, the onboard graphics won't be used and can't be combined!
The way you can combine the integrated with the GPU its if you use an APU (AMD CPU+GPU) and crossfire it with the other graphics cards as long as they use the same GPU.


PD: What model and brand is your PSU?

I hope I clarified your doubts, if not, feel free to ask :)
Welcome to Tom's btw :)
 

Slingshot1986

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Oct 15, 2013
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The way you can combine the integrated with the GPU its if you use an APU (AMD CPU+GPU) and crossfire it with the other graphics cards as long as they use the same GPU.

Please can you elaborate? What is an APU, what does it stand for? Do you mean my new PC should be an AMD processor with an AMD graphics card so I can crossfire the two cards? I thought this would be possible even without an AMD processor, as long as the card in the new machine is a Gigabyte HD 7850 like the one i just bought?

Thanks for your time and help mate,

Steve

ps. my PSU is a Q-TEC 550W DUAL FAN GOLD
 

Metalrenok

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Sep 6, 2013
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APU is a system where you have a CPU + GPU all in one, so it's cheaper but not that efficient. It stands for Accelerated processing unit.

Let me explain it better, crossfire is when you combine two or more AMD video cards to get better performance, both of them have to be the exact same GPU. I mean, you can't combine a 7970 with a 6970!

AMD_CrossfireX_Chart_532W.jpg

These are the chart of the cards you can crossfire :)
http://sites.amd.com/us/game/technology/Pages/crossfirex.aspx

You can do it without an AMD processor, what matters is the GPU, in your system, you could buy another 7850 and crossfire them! But I don't think it's worth it


PD: I don't think that PSU is going to suffice for a crossfire
 

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