Core i7-2720QM vs Core i7-840QM
Core i7-2720QM
Core i7-840QM
|
4 Cores
8 Threads
2.2GHz Clock
|
4 Cores
8 Threads
1.86GHz Clock
|
|
Socket
BGA 1224
|
Socket
PGA 988
|
|
iGPU
HD 3000 1300MHz
|
iGPU
No GPU
|
|
GB6S 495
13%
|
GB6S 365
10%
|
|
GB6M 1,565
7%
|
GB6M 995
4%
|
|
CB23S - N/A
0%
|
CB23S - N/A
0%
|
|
CB23M - N/A
0%
|
CB23M - N/A
0%
|
|
Manufacturer
Intel
|
Manufacturer
Intel
|
|
Architecture
Sandy Bridge
|
Architecture
Nehalem
|
|
Family
Core 2nd Gen
|
Family
Core 1st Gen
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Sandy Bridge
Sandy Bridge-HE-4
Sandy Bridge-4C-GT2
-
-
-
-
-
-
|
Codename
Clarksfield
-
-
-
-
-
-
-
-
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Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
1/1/2011
|
Release Date
6/1/2010
|
|
Foundry
Intel
-
-
-
|
Foundry
Intel
-
-
-
|
|
Node
32nm
-
-
-
|
Node
45nm
-
-
-
|
|
Die Size
216 mm²
-
-
-
|
Die Size
296 mm²
-
-
-
|
|
Transistor Count
1.2 Billion
-
-
-
|
Transistor Count
774 Million
-
-
-
|
|
4 Cores
-
-
-
|
4 Cores
-
-
-
|
|
8 Threads
-
-
-
|
8 Threads
-
-
-
|
|
-
2.2GHz
3.3GHz Boost
-
|
-
1.86GHz
3.2GHz Boost
14x Multiplier
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
Overclocking
Locked
-
-
-
|
Overclocking
Locked
Voltage
0.65V Min
1.4V Max
|
|
Type
DMI
|
Type
DMI
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Transfer Rate
5GT/s
|
Transfer Rate
2.5GT/s
|
|
-
-
|
-
-
|
|
Lanes
4
|
Lanes
4
|
|
Bandwidth
2.5GB/s
|
Bandwidth
1.25GB/s
|
|
Bi-directional
5GB/s
|
Bi-directional
2.5GB/s
|
|
L0 Instruction
-
-
|
L0 Instruction
-
-
|
|
L0 Data
-
-
|
L0 Data
-
-
|
|
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
|
L1 Instruction
32KB/Core
4-way set associative
-
-
-
-
|
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
L1 Data
32KB/Core
8-way set associative
-
-
-
-
|
|
L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
|
L3
-
6MB Shared
-
12-way set associative
-
-
-
-
-
|
L3
-
8MB Shared
-
16-way set associative
-
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
Channels
2
|
Channels
2
|
|
Max Memory
32GB
|
Max Memory
8GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
800MHz
Transfer Rate
1600MT/s
|
Clock
667MHz
Transfer Rate
1333MT/s
|
|
Bandwidth/Channel
12.8GB/s
Bandwidth
25.6GB/s
|
Bandwidth/Channel
10.7GB/s
Bandwidth
21.3GB/s
|
|
TDP
45W
-
-
-
|
TDP
45W
-
-
-
|
|
Temp
100°C Max
-
|
Temp
100°C Max
-
|
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
|
PCIe 2.0 x16 Lanes
|
PCIe 2.0 x16 Lanes
|
|
HD 3000 1300MHz
96 Shaders
1300MHz
|
No GPU
-
-
|
|
No NPU
-
|
No NPU
-
|
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-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
No Cellular
|
No Cellular
|
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