Intel Core i7-620M vs Intel Core i7-640LM

Intel Core i7-620M $332
Intel Core i7-640LM $332
2 Cores
4 Threads
2.66GHz Clock
2 Cores
4 Threads
2.13GHz Clock
Socket
BGA 1288
Socket
BGA 1288
iGPU
HD 766MHz Gen 5
150 GFLOPS FP32
iGPU
HD 566MHz Gen 5
110 GFLOPS FP32

GB6 Single-Core

  • 21% faster vs Core i7-640LM
  • 17% slower vs Core i7-620M
Core i7-620M - GB6S 440
x1.21
Core i7-640LM - GB6S 365
x1

GB6 Multi-Core

  • 20% faster vs Core i7-640LM
  • 17% slower vs Core i7-620M
Core i7-620M - GB6M 815
x1.2
Core i7-640LM - GB6M 680
x1
  • Same Performance vs Core i7-640LM
  • Same Performance vs Core i7-620M
Core i7-620M - 17.1GB/s
x1
Core i7-640LM - 17.1GB/s
x1
  • 40% higher vs Core i7-640LM
  • 29% lower vs Core i7-620M
Core i7-620M - 35W
x1.4
Core i7-640LM - 25W
x1
  • 36% faster vs Core i7-640LM
  • 27% slower vs Core i7-620M
Core i7-620M - 150 GFLOPS FP32
x1.36
Core i7-640LM - 110 GFLOPS FP32
x1
Manufacturer
Intel
Manufacturer
Intel
Architecture
Westmere
Architecture
Westmere
Family
Core 1st Gen
Family
Core 1st Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Arrandale
Codename
Arrandale
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/1/2010
Release Date
1/1/2010
Foundry
Intel
Intel (iGPU Die)
Foundry
Intel
Intel (iGPU Die)
Node
32nm
45nm (iGPU Die)
Node
32nm
45nm (iGPU Die)
Die Size
81 mm²
114 mm² (iGPU Die)
Die Size
81 mm²
114 mm² (iGPU Die)
Transistor Count
382 Million
177 Million (iGPU Die)
Transistor Count
382 Million
177 Million (iGPU Die)
2 Cores
2 Cores
4 Threads
4 Threads
2.66GHz
3.33GHz Boost
20x Multiplier
2.13GHz
2.93GHz Boost
16x Multiplier
Overclocking
Locked
Voltage
0.78V Min
1.4V Max
Overclocking
Locked
Voltage
0.75V Min
1.4V Max
Type
DMI
Type
DMI
Transfer Rate
2.5GT/s
Transfer Rate
2.5GT/s
Lanes
4
Lanes
4
Bandwidth
1.25GB/s
Bandwidth
1.25GB/s
Bi-directional
2.5GB/s
Bi-directional
2.5GB/s
L1 Instruction
32KB/Core
4-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
4MB Shared
16-way set associative
L3
4MB Shared
16-way set associative
Channels
2
Channels
2
Max Memory
8GB
Max Memory
8GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
64Bit
Bus Width
128Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
533MHz
Transfer Rate
1066MT/s
Clock
533MHz
Transfer Rate
1066MT/s
Bandwidth/Channel
8.5GB/s
Bandwidth
17.1GB/s
Bandwidth/Channel
8.5GB/s
Bandwidth
17.1GB/s
TDP
35W
TDP
25W
Temp
105°C Max
Temp
105°C Max
PCIe 2.0 x16 Lanes
PCIe 2.0 x16 Lanes
HD 766MHz Gen 5
96 Shaders
766MHz
150 GFLOPS FP32
HD 566MHz Gen 5
96 Shaders
566MHz
110 GFLOPS FP32
No NPU
No NPU
No Cellular
No Cellular
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