What are the minimum specs for X amount of players

[[Toast]]

(Please use AMD hardware because I am more familiar with it)

What are (roughly) the minimum specs required for:
40 players
60 players
80 players
100 players

This is assuming the default tick rate and stuff.

[[Toast]]

Can anyone throw me some rough estimates?

I guess I'll ask about some specifics:

• How many players can a AMD Athlon X2 3800+ (2Ghz, Dual Core) with 1GB ram handle?
• How many players can a AMD Athlon 3800+ (2.4Ghz, single core) with 1GB ram handle?
  

[Drocona]

I'm not familiar with AMD, I've always used intel, I have no idea how they run and what their ratio's are..

but to give you some rough estimates:
X2 => 80 slots
3800+ => 40 slots

this is at 100 tickrate

[ZMD89]

what about AMD Athlon™ 64 X2 Dual Core Processor 5200 (2.6GHz)
with 2GB DDR ram

[Drocona]

prolly like 140 slots total

[Jomanscool2]

If just running a single CS:S server, how many people do you think I could run (and at what tickrates) on an AMD Athlon™ 64 3200+ (2.0GHZ, running 32bit XP-Pro) with 2gb of ram? (This will be lan btw).

[Drocona]

single server probably like 30-40 players at 33 tickrate