Because of the memory and oc abilities, even better/faster than 4670 (all 4xxx) AGP. Perhaps best you can get. 7.0 on both WEI ratings. http://clusty.com/search?query=HIS+R...tb=opensearch&
If you can't find one for sale, go with the HD 4xxx series. This is the HIS 4670
and gpu speed is slightly higher at 750 MHz, with only 128 bit memory. The 3850 before manual overclocking is 720 MHz gpu and 1820 MHz GDDR3 256 bit. I get it easily to 800/2200 with overhead.