Is Intel Atom 270 really so slow?

[MK]

Hello

I've just installed OpenBSD 4.5 on Intel Atom 270 1.6GHz mini ITX board and 
made some tests.
CPU speed does not look very good, in fact I was comparing OpenSSL tests 
with my old Pentium III 500MHz and it's in many cases faster.
(in ubench Pentium III is just about 1200 points lower than 1.6Ghz Atom)

e.g.

openssl speed aes

Intel Atom

The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 
bytes
aes-128 cbc      10396.85k    12298.42k    12928.09k    13091.55k 
13142.58k
aes-192 cbc       9116.41k    10525.00k    10981.04k    11102.07k 
11139.49k
aes-256 cbc       8068.51k     9088.34k     9410.93k     9491.90k 
9520.14k

Pentium III

The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 
bytes
aes-128 cbc      14980.42k    15963.78k    16222.05k    16329.53k 
16919.33k
aes-192 cbc      13102.40k    14225.10k    14473.31k    14457.72k 
14487.41k
aes-256 cbc      11976.37k    12662.91k    12850.40k    12842.31k 
12945.35k

Is that an expected result, or is it caused by some wrong configuration on 
my system?

Thank you for any help
MK

Thank you for