I'm looking to upgrade my current gaming PC to give to my girl with an AMD A8-3870K APU and want to find the best GPU to use for the dual graphics capability of the Gigabyte GA-A75-UD4H FM1 motherboard I'm planning on using.
The highest compatible Radeon GPU for dual graphics this processor lists is the HD6670 and I can find several versions with two main differences: some have 2GB of DDR3 memory and some have 1GB of DDR5. I plan on using 8GB of DDR3 2400(OC) system memory. I will overclock everything I can and expect good results.
My question is this: Which would provide better overall performance: 2GB of GDDR3 or 1GB of GDDR5?
The highest compatible Radeon GPU for dual graphics this processor lists is the HD6670 and I can find several versions with two main differences: some have 2GB of DDR3 memory and some have 1GB of DDR5. I plan on using 8GB of DDR3 2400(OC) system memory. I will overclock everything I can and expect good results.
My question is this: Which would provide better overall performance: 2GB of GDDR3 or 1GB of GDDR5?