Processor (CPU)
CPU Name
Intel® Xeon® CPU E5640 @ 2.67GHz
Threading
1 CPU - 4 Core - 8 Threads
Frequency
4928.17 MHz (21 * 234.67 MHz) - Uncore: 3754.8 MHz
Multiplier
Current: 21 / Min: 12 / Max: 22
Architecture
Westmere-EP / Stepping: B1 / Technology: 32 nm
CPUID / Ext.
6.C.2 / 6.2C
IA Extensions
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES
Caches
L1D : 32 KB / L2 : 256 KB / L3 : 12288 KB
Caches Assoc.
L1D : 8-way / L2 : 8-way / L3 : 16-way
Microcode
Rev. 0x13
TDP / Vcore
80 Watts /
Type
Retail (Stock Frequency : 2666 MHz)
Cores Frequencies
#00: 4928.17 MHz  #01: 4928.17 MHz  #09: 4928.17 MHz  #10: 4928.17 MHz 
Motherboard
Model
Asus Rampage III Extreme
Socket
Socket 1366 LGA
North Bridge
Intel X58 rev 13
South Bridge
Intel 82801JR (ICH10R) rev 00
BIOS
American Megatrends Inc. 1401 (05/12/2011)
Memory (RAM)
Total Size
3064 MB
Type
Triple Channel (192 bit) DDR3-SDRAM
Frequency
938.7 MHz (DDR3-1878) - Ratio 2:8
Timings
10-10-10-27-2 (tCAS-tRCD-tRP-tRAS-tCR)
Graphic Card (GPU)
Storage (HDD/SSD)
Model #1
Intel Raid 0 Volume
Capacity #1
240 GB
Miscellaneous
Windows Version
Microsoft Windows XP Professional
CPU-Z Version
1.77.0 (32 bit)