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HoloDust on 21 June 2013
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Viper1 said:

 

HoloDust said:
Viper1 said:

HD 6670 - 768 GFLOPS
HD 7660D - 614 GFLOPS

Total - 1,382 GFLOPS.  That's much more than the HD 7750 but equal to a single HD 6770

Or if the APU will let you crossfire with an HD 6770 for $30 extra, there's your more than equal performance (614 + 1360 = 1,974 GFLOPS).

Oh boy, here we go again with FLOPSing....

6770 is rebranded 5770 http://www.rage3d.com/articles/amd_radeon_hd6770-6750_rebranding/

and this is how it compares to 7750:

http://www.anandtech.com/bench/Product/538?vs=535

Now, 7850 vs 7750:

http://www.anandtech.com/bench/Product/549?vs=535

and 7850 vs 5770:

http://www.anandtech.com/bench/Product/549?vs=538

So why are you only comparing the performance of 1 of the GPU's when the system I posted has 2?

And yes, I used GFLOPS as it the closest means of measuring comparable performance across architecturally different products.

a) Not sure what are you asking me - your config has GPU inside APU plus 6670, working in Dual graphics mode...together they perform (at best) at the level of 6770/7750 (as for Dual graphics with 6770, official specs do not support that)

b) closest means of comparing performance across different architectures are...benchmarks

 

Anyway, you can get PS4 comparable PC (without OS) for as low as $550 (if you don't mind some really cheapish components)...and to be on the level of PS4, due to Win overhead and due to PS4's architectural enhancements, it does need GPU that performs better than HD7850...so either 660GTX or HD7870 (I would most certainly go with later).