processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 5
model name	: AMD Opteron(tm) Processor 240
stepping	: 1
cpu MHz		: 1394.268
cache size	: 1024 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall mmxext lm 3dnowext 3dnow
bogomips	: 2736.12

MemTotal:       514820 kB
MemFree:          3876 kB
Buffers:           884 kB
Cached:         486380 kB
SwapCached:          0 kB
Active:         238592 kB
Inactive:       258108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       514820 kB
LowFree:          3876 kB
SwapTotal:      811240 kB
SwapFree:       811240 kB
Dirty:           49480 kB
Writeback:        3840 kB
Mapped:          14300 kB
Slab:            11660 kB
Committed_AS:    18876 kB
PageTables:        316 kB
VmallocTotal:   516060 kB
VmallocUsed:       912 kB
VmallocChunk:   515148 kB

IDE - 7200 RPM
------------------------------
/dev/hda:

 Model=Maxtor 6Y120L0, FwRev=YAR41VW0, SerialNo=Y41H5LWE
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=240121728
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6 
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: (null):  1 2 3 4 5 6 7

/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.28 seconds =455.59 MB/sec
 Timing buffered disk reads:  64 MB in  1.35 seconds = 47.48 MB/sec

SCSI - 10K RPM
------------------------------
Adaptec AIC7xxx driver version: 6.2.35
Adaptec 19160B Ultra160 SCSI adapter
aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
Allocated SCBs: 36, SG List Length: 128

Target 0 Negotiation Settings
        User: 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
        Goal: 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
        Curr: 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
        Channel A Target 0 Lun 0 Settings
                Commands Queued 1103337
                Commands Active 32
                Command Openings 0
                Max Tagged Openings 32
                Device Queue Frozen Count 0

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: MAXTOR   Model: ATLAS10K4_36SCA  Rev: DFF0
  Type:   Direct-Access                    ANSI SCSI revision: 03

/dev/sda:
 Timing buffer-cache reads:   128 MB in  0.28 seconds =460.50 MB/sec
 Timing buffered disk reads:  64 MB in  0.93 seconds = 69.12 MB/sec

This SCSI drive is 45.47% faster at buffered disk reads then the above IDE drive.
As well it is running at 10K RPM, as compared to the IDE's 7200 RPM.