Dell Alienware M11x R2 (Mid 2010) - Manual (Page 93)

CHAPTER 7: SPECIFICATIONS
93
Processor and System Chipset
Processor
Intel ® Core™ i3
Intel Core i5
Intel Core i7
L2 cache 256 KB
L3 cache up to 4 MB
Bus clock 133 Mhz
System chipset Intel QS57
SDRAM bus width one or two 64-bit channels of DDR3 memory up to
1333 MHz
Processor address bus width 32 bits
Processor data width 64 bits
BIOS EPROM 8 Mbit
Graphics bus PCIe x16 bus
PCI bus 32 bits