Intel Core i7-640UM vs Intel Core i7-620UM
Intel Core i7-640UM
$305
Intel Core i7-620UM
$278
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2 Cores
4 Threads
1.2GHz Clock
|
2 Cores
4 Threads
1.06GHz Clock
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|
Socket
BGA 1288
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Socket
BGA 1288
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iGPU
HD 500MHz Gen 5
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iGPU
HD 500MHz Gen 5
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Manufacturer
Intel
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Manufacturer
Intel
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Architecture
Westmere
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Architecture
Westmere
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Family
Core 1st Gen
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Family
Core 1st Gen
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Instruction Set (ISA)
x86-64
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Instruction Set (ISA)
x86-64
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Codename
Arrandale
-
-
-
-
-
-
-
-
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Codename
Arrandale
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-
-
-
-
-
-
-
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Market Segment
Laptop
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Market Segment
Laptop
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Release Date
1/1/2010
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Release Date
1/1/2010
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Foundry
Intel
Intel (iGPU Die)
-
-
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Foundry
Intel
Intel (iGPU Die)
-
-
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Node
32nm
45nm (iGPU Die)
-
-
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Node
32nm
45nm (iGPU Die)
-
-
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Die Size
81 mm²
114 mm² (iGPU Die)
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-
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Die Size
81 mm²
114 mm² (iGPU Die)
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-
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Transistor Count
382 Million
177 Million (iGPU Die)
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-
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Transistor Count
382 Million
177 Million (iGPU Die)
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-
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2 Cores
-
-
-
|
2 Cores
-
-
-
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4 Threads
-
-
-
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4 Threads
-
-
-
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-
1.2GHz
2.3GHz Boost
9x Multiplier
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-
1.06GHz
2.1GHz Boost
8x Multiplier
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|
-
-
-
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-
-
-
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-
-
-
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-
-
-
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Overclocking
Locked
Voltage
0.73V Min
1.4V Max
|
Overclocking
Locked
Voltage
0.73V Min
1.4V Max
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|
Type
DMI
|
Type
DMI
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|
-
-
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-
-
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-
-
|
-
-
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Transfer Rate
2.5GT/s
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Transfer Rate
2.5GT/s
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|
-
-
|
-
-
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Lanes
4
|
Lanes
4
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Bandwidth
1.25GB/s
|
Bandwidth
1.25GB/s
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Bi-directional
2.5GB/s
|
Bi-directional
2.5GB/s
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|
L0 Instruction
-
-
|
L0 Instruction
-
-
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L0 Data
-
-
|
L0 Data
-
-
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L1 Instruction
32KB/Core
4-way set associative
-
-
-
-
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L1 Instruction
32KB/Core
4-way set associative
-
-
-
-
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L1 Data
32KB/Core
8-way set associative
-
-
-
-
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L1 Data
32KB/Core
8-way set associative
-
-
-
-
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L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
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L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
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L3
-
4MB Shared
-
16-way set associative
-
-
-
-
-
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L3
-
4MB Shared
-
16-way set associative
-
-
-
-
-
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-
-
-
-
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-
-
-
-
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Channels
2
|
Channels
2
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Max Memory
8GB
|
Max Memory
8GB
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ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
400MHz
Transfer Rate
800MT/s
|
Clock
400MHz
Transfer Rate
800MT/s
|
|
Bandwidth/Channel
6.4GB/s
Bandwidth
12.8GB/s
|
Bandwidth/Channel
6.4GB/s
Bandwidth
12.8GB/s
|
|
TDP
18W
-
-
-
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TDP
18W
-
-
-
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Temp
105°C Max
-
|
Temp
105°C Max
-
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Included Cooler
Not Included
|
Included Cooler
Not Included
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PCIe 2.0 x16 Lanes
|
PCIe 2.0 x16 Lanes
|
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HD 500MHz Gen 5
96 Shaders
500MHz
|
HD 500MHz Gen 5
96 Shaders
500MHz
|
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No NPU
-
|
No NPU
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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No Cellular
|
No Cellular
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