I pretty much asked what the difference would be in the two for present and future and got an honest answer:
If you are going with a Radeon 7870 already, that will already remove one advantage of the 3570K in that it has the integrated Intel 4000 GPU. The 8120 does perform a little slower than the i5-3570K (once the FX-patch from Microsoft for Windows 7 has been installed), but the fact that the 8120 is $50 cheaper and the AM3+ socket appears to be around for at least 2 more generations of CPUs (if not more) makes it much easier to upgrade your system in 1-3 years, against the 3570K where you won't have too many options for upgrade at that time.
The other advantage of the 8120 is that it performs better with the 7870 than an Intel CPU would. With the Vision Engine Control Center, you can customize CPU and GPU settings to work better together in the same application, and performance/efficiency will be better with the 8120.
The 3570K will be a more powerful CPU, but not significantly. You're looking at roughly 10-20% better performance on the 3570K, but at 35% higher pricing. The 8120 also features more CPU functionality for future software releases (FMA4/XOP, which aren't used as much now but will be implemented by more software in the future). This helps to make the 8120 a much better future-proof option, not being obsolete or rendering your motherboard obsolete as well.
If you have any other questions or concerns, please do not hesitate to reply to this e-mail directly and I will try to provide any additional information that you may require. Thank you for contacting AMD!
In order to update this service request, please respond, leaving the service request reference intact.
Best regards,
AMD Global Customer Care
If you are going with a Radeon 7870 already, that will already remove one advantage of the 3570K in that it has the integrated Intel 4000 GPU. The 8120 does perform a little slower than the i5-3570K (once the FX-patch from Microsoft for Windows 7 has been installed), but the fact that the 8120 is $50 cheaper and the AM3+ socket appears to be around for at least 2 more generations of CPUs (if not more) makes it much easier to upgrade your system in 1-3 years, against the 3570K where you won't have too many options for upgrade at that time.
The other advantage of the 8120 is that it performs better with the 7870 than an Intel CPU would. With the Vision Engine Control Center, you can customize CPU and GPU settings to work better together in the same application, and performance/efficiency will be better with the 8120.
The 3570K will be a more powerful CPU, but not significantly. You're looking at roughly 10-20% better performance on the 3570K, but at 35% higher pricing. The 8120 also features more CPU functionality for future software releases (FMA4/XOP, which aren't used as much now but will be implemented by more software in the future). This helps to make the 8120 a much better future-proof option, not being obsolete or rendering your motherboard obsolete as well.
If you have any other questions or concerns, please do not hesitate to reply to this e-mail directly and I will try to provide any additional information that you may require. Thank you for contacting AMD!
In order to update this service request, please respond, leaving the service request reference intact.
Best regards,
AMD Global Customer Care