New Graphics card help.

[Joccaren]

I am not buying 2 GPUs. I got a AMD APU which appearently goes well with the 6670. Plus my budget is only around $100.
Also I am not selling my card. Told a friend I would give it to her when she was looking into building a low-end PC.

Well, when you said Xfire it kinda meant more than one GPU.

And if your budget is $100, I'd probably go for something about the levels of a 550Ti or a GTX 280, or the Radeon Equivalents that I'd need to look up.
Using the same site as last time, they both score significantly better than a single 6670:
http://www.videocardbenchmark.net/video_lookup.php?gpu=GeForce+GTX+550+Ti
The 550Ti scores 1,886, against the 6670's 1,146
The GTX 280 [Located 5 places above] scores 1,971

From what I know of the two cards, the 280 is faster and more powerful, though it is slightly worse at handling higher resolutions, runs hotter, uses more power and I don't believe it supports DX11. It is also, I believe, slightly longer than the 550Ti.

I could look up the Radeon equivalents of these cards if you'd like - they'll probably end up cheaper and will be about the same power, minus PhysX, though both these cards are at or slightly over $100, dependent on where you look.

 

[Solo-Wing]

I am not buying 2 GPUs. I got a AMD APU which appearently goes well with the 6670. Plus my budget is only around $100.
Also I am not selling my card. Told a friend I would give it to her when she was looking into building a low-end PC.

Well, when you said Xfire it kinda meant more than one GPU.

And if your budget is $100, I'd probably go for something about the levels of a 550Ti or a GTX 280, or the Radeon Equivalents that I'd need to look up.
Using the same site as last time, they both score significantly better than a single 6670:
http://www.videocardbenchmark.net/video_lookup.php?gpu=GeForce+GTX+550+Ti
The 550Ti scores 1,886, against the 6670's 1,146
The GTX 280 [Located 5 places above] scores 1,971

From what I know of the two cards, the 280 is faster and more powerful, though it is slightly worse at handling higher resolutions, runs hotter, uses more power and I don't believe it supports DX11. It is also, I believe, slightly longer than the 550Ti.

I could look up the Radeon equivalents of these cards if you'd like - they'll probably end up cheaper and will be about the same power, minus PhysX, though both these cards are at or slightly over $100, dependent on where you look.

No no no. The APU's dedicated graphics can Xfire with a 6450, 6570, or 6670. I am not too sure with other AMD GPUs though.

So yeah I would prefer Radeon.

Also could you check what I can Xfire with my APU? That would be helpful...

 

[Joccaren]

No no no. The APU's dedicated graphics can Xfire with a 6450, 6570, or 6670. I am not too sure with other AMD GPUs though.

So yeah I would prefer Radeon.

Also could you check what I can Xfire with my APU? That would be helpful...

Alright. TBH its not going to provide a ton of advantage - Integrated graphics are, frankly, terrible, but here's the Radeon cards I did manage to find:

Radeon 4890:
Scores higher than the 550Ti, but lower than the GTX 280 - score of 1,929
It does not have DX11.
Both the 550Ti and the GTX 280 handle AA and High resolutions better than the 4890.
It costs around $110

Radeon 7750:
Scores lower than all other cards I have suggested, with a score of 1,850
I believe it does have DX11
All other cards I have suggested are better at handling higher resolutions and full screen AA.
Costs around $90

Radeon 7770:
Scores higher than 550Ti and GTX 280, with a score of 2,061
I believe it does have DX11
Is not as good at handling higher resolutions as the 550Ti or GTX 280.
Costs around $125

Other comparable GPUs are seem to be either underpowered, or exceeding your price range and hitting $150.
Being Radeon cards, none of the above have PhysX
General consensus online seems to be that the 4890 is better to get than a 550Ti, unless you care about DX11, but it would be better to get a GTX 280 than it, Radeon 7750 is considered worse to get get than any of the cards I have suggested and the 7770 is preferred over both the 550Ti and the GTX 280, though it is more expensive.

Not sure about Xfire with APUs, though they are all capable of Xfire with other identical GPUs.
All GPUs you listed are rather underpowered, and the benefits from Xfire with the APU are unlikely to make up the difference between them and my other suggested cards, so if they don't Xfire with the APU then I'd go for another card anyway.

 

[Supernova1138]

As you said, the Llano can run in Hybrid Crossfire with the 6450, 6570, and 6670. It will not run in Hybrid Crossfire with any other AMD cards. All other AMD cards will cause the APU's GPU to shut down, and your system will run solely off the discrete card.

 

[Solo-Wing]

As you said, the Llano can run in Hybrid Crossfire with the 6450, 6570, and 6670. It will not run in Hybrid Crossfire with any other AMD cards. All other AMD cards will cause the APU's GPU to shut down, and your system will run solely off the discrete card.

Ok. Would my APU and a 6670 be better then say a 7750? And how would the APU/6670 compare to my current 520?

No no no. The APU's dedicated graphics can Xfire with a 6450, 6570, or 6670. I am not too sure with other AMD GPUs though.

So yeah I would prefer Radeon.

Also could you check what I can Xfire with my APU? That would be helpful...

Alright. TBH its not going to provide a ton of advantage - Integrated graphics are, frankly, terrible, but here's the Radeon cards I did manage to find:

Radeon 4890:
Scores higher than the 550Ti, but lower than the GTX 280 - score of 1,929
It does not have DX11.
Both the 550Ti and the GTX 280 handle AA and High resolutions better than the 4890.
It costs around $110

Radeon 7750:
Scores lower than all other cards I have suggested, with a score of 1,850
I believe it does have DX11
All other cards I have suggested are better at handling higher resolutions and full screen AA.
Costs around $90

Radeon 7770:
Scores higher than 550Ti and GTX 280, with a score of 2,061
I believe it does have DX11
Is not as good at handling higher resolutions as the 550Ti or GTX 280.
Costs around $125

Other comparable GPUs are seem to be either underpowered, or exceeding your price range and hitting $150.
Being Radeon cards, none of the above have PhysX
General consensus online seems to be that the 4890 is better to get than a 550Ti, unless you care about DX11, but it would be better to get a GTX 280 than it, Radeon 7750 is considered worse to get get than any of the cards I have suggested and the 7770 is preferred over both the 550Ti and the GTX 280, though it is more expensive.

Not sure about Xfire with APUs, though they are all capable of Xfire with other identical GPUs.
All GPUs you listed are rather underpowered, and the benefits from Xfire with the APU are unlikely to make up the difference between them and my other suggested cards, so if they don't Xfire with the APU then I'd go for another card anyway.

If what the above guy said is true then my incentive dropped for those...

And I do want DX11. Just Cause 2 needs it. And there are more games that need it as well.

 

[Supernova1138]

anyway.If what the above guy said is true then my incentive dropped for those...

And I do want DX11. Just Cause 2 needs it. And there are more games that need it as well.

The 7750 will perform about the same as the hybrid Crossfire with 6670 in DX11 games. In DX9 games, the 7750 will provide better performance as Hybrid Crossfire doesn't work in DX9. Just Cause 2 uses DirectX 10, it does not support DX11. I believe DX10 does work in Hybrid Crossfire mode. However, the Hybrid Crossfire setup would be more prone to driver problems and microstuttering. You probably are better off just getting the 7750, or a better card if you can up your budget. The 4890 would offer more raw performance, but you do lose out on DX11 support. No game requires DX11 yet, but it is there as an option on some newer titles. The 4890 also consumes a lot more power than the 7750 or 6670, so you would need a beefier power supply for it. Same if you went for something like the GTX 280.

 

[Joccaren]

If what the above guy said is true then my incentive dropped for those...

And I do want DX11. Just Cause 2 needs it. And there are more games that need it as well.

The 4890 and 280 were the only cards I suggested that didn't have DX11, which made them slightly cheaper for their power.
I'm going to leave the results of APU+6670 vs 7750 benchmarks to Supernova as I've just become kinda busy. Quick search yielded a 550Ti scoring 2-3FPS better in Unigine benchmarks, but I haven't checked anything other than the GPU used and APU, so the results might be a little rigged. Good luck.