Compare 4 products

General
Processor socket	LGA 775	LGA 775	LGA 1155	LGA 771
Component for	PC	N/A	PC	Server/Workstation
Operating modes	64-bit	64-bit	64-bit	64-bit

General

Processor socket

LGA 775

LGA 1155

LGA 771

Component for

Server/Workstation

Operating modes

64-bit

Processor
Clock speed	3.0 GHz	2.4 GHz	3.1 GHz	3.0 GHz
Number of cores	2	4	2	2
Number of threads	2	4	4	2
Thermal Design Power (TDP)	65.0 W	95.0 W	65.0 W	80.0 W
Processor lithography	0.0 in	0.0 in	0.0 in	0.0 in
Bus type	FSB	FSB	DMI	FSB
Bus speed	1333.0 MHz	1066.0 MHz	N/A	1333.0 MHz
Idle states	yes	yes	yes	yes

Processor

Clock speed

3.0 GHz

2.4 GHz

3.1 GHz

3.0 GHz

Number of cores

Number of threads

Thermal Design Power (TDP)

65.0 W

95.0 W

65.0 W

80.0 W

Processor lithography

0.0 in

Bus type

FSB

DMI

FSB

Bus speed

1333.0 MHz

1066.0 MHz

1333.0 MHz

Idle states

yes

Memory
Cache	6 MB	8 MB	3 MB	4 MB
Cache type	L2	L2	Smart Cache	L2
Memory clock speeds supported by processor	N/A	N/A	1066 1333	N/A
Maximum internal memory supported by processor	N/A	N/A	32.0 GB	N/A
Memory types supported by processor	N/A	N/A	DDR3 SDRAM	N/A
Memory bandwidth supported by processor (max)	N/A	N/A	21.0 GB/s	N/A
Memory channels	N/A	N/A	Dual	N/A

Memory

Cache

6 MB

8 MB

3 MB

4 MB

Cache type

Smart Cache

Memory clock speeds supported by processor

1066
1333

Maximum internal memory supported by processor

32.0 GB

Memory types supported by processor

DDR3 SDRAM

Memory bandwidth supported by processor (max)

21.0 GB/s

Memory channels

Dual

Thermals
Thermal specification	162.32 °F	159.8 °F	156.38 °F	133.7 °F

Features
Thermal monitoring technologies	yes	yes	yes	yes
Execute disable bit	yes	yes	yes	yes
Maximum number of PCI Express lanes	N/A	N/A	16	N/A
Supported instruction sets	N/A	N/A	AVX	N/A