I believe the servers each have 2 x quad core Xeons, with each linode having access to 4 cores. The exact speed varies between servers, however they appear to hover around the 2.0 - 2.5GHz mark.
Each VPS has a guaranteed CPU share, which is fully burstable.
Here's my /proc/cpuinfo from newark 77:
Code:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
stepping : 6
cpu MHz : 2500.086
cache size : 6144 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu de tsc msr pae cx8 sep cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl pni ssse3 cx16 sse4_1 lahf_lm
bogomips : 5000.17
clflush size : 64
cache_alignment : 64
address sizes : 38 bits physical, 48 bits virtual
power management: