Well the 4000+ is a bit of a different story since it uses a Clawhammer core with 1MB L2 cache, so you won't find a 3500+ that was intended as a 4000+.
A chip doesn't specifically overclock in a routine based on the type, every chip is different, and will reach different speeds with different specifications. All I was pointing out was the fact that a 3200+ may be theoritically faster than another 3200+. Same goes with video cards, LE and SE cards are usually "broken" higher performance cards. A 3200+ could just be a somewhat "broken" 3500+.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w