"Model Number Comparisons - Athlon 64s" from AMDs website http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_9485_9487^10248,00.html
Model Number Frequency L2 Cache Packaging
4000+ 2.4GHz 1 MB 939-pin
3800+ 2.4GHz 512KB 939-pin
3700+ 2.4GHz 1MB 754-pin
3700+ 2.2GHz 1MB 939-pin
3500+ 2.2GHz 512KB 939-pin
3400+ 2.4GHz 512KB 754-pin
3200+ 2.0GHz 1MB 754-pin
3200+ 2.0GHz 512KB 939-pin
3000+ 2.0GHz 512KB 754-pin
3000+ 1.8GHz 512KB 939-pin
Emphasis on 3400+ 2.4GHz 512KB 754-pin
If AMD's site is missing a processor I'd quite like to see proof!...