Intel Core i7-820QM vs Intel Core i7-620M

Intel Core i7-820QM
Intel Core i7-620M $332
4 Cores
8 Threads
1.73GHz Clock
2 Cores
4 Threads
2.66GHz Clock
Socket
PGA 988
Socket
BGA 1288
iGPU
No GPU
- -
iGPU
HD 766MHz Gen 5
150 GFLOPS FP32

GB6 Single-Core

  • 13% slower vs Core i7-620M
  • 14% faster vs Core i7-820QM
Core i7-820QM - GB6S 385
x1
Core i7-620M - GB6S 440
x1.14

GB6 Multi-Core

  • 20% faster vs Core i7-620M
  • 16% slower vs Core i7-820QM
Core i7-820QM - GB6M 975
x1.2
Core i7-620M - GB6M 815
x1
  • 25% faster vs Core i7-620M
  • 20% slower vs Core i7-820QM
Core i7-820QM - 21.3GB/s
x1.25
Core i7-620M - 17.1GB/s
x1
  • 29% higher vs Core i7-620M
  • 22% lower vs Core i7-820QM
Core i7-820QM - 45W
x1.29
Core i7-620M - 35W
x1
Manufacturer
Intel
Manufacturer
Intel
Architecture
Nehalem
Architecture
Westmere
Family
Core 1st Gen
Family
Core 1st Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Clarksfield
Codename
Arrandale
Market Segment
Laptop
Market Segment
Laptop
Release Date
9/1/2009
Release Date
1/1/2010
Foundry
Intel
-
Foundry
Intel
Intel (iGPU Die)
Node
45nm
-
Node
32nm
45nm (iGPU Die)
Die Size
296 mm²
-
Die Size
81 mm²
114 mm² (iGPU Die)
Transistor Count
774 Million
-
Transistor Count
382 Million
177 Million (iGPU Die)
4 Cores
2 Cores
8 Threads
4 Threads
1.73GHz
3.06GHz Boost
13x Multiplier
2.66GHz
3.33GHz Boost
20x Multiplier
Overclocking
Locked
Voltage
0.65V Min
1.4V Max
Overclocking
Locked
Voltage
0.78V 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
8MB 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
667MHz
Transfer Rate
1333MT/s
Clock
533MHz
Transfer Rate
1066MT/s
Bandwidth/Channel
10.7GB/s
Bandwidth
21.3GB/s
Bandwidth/Channel
8.5GB/s
Bandwidth
17.1GB/s
TDP
45W
TDP
35W
Temp
100°C Max
Temp
105°C Max
PCIe 2.0 x16 Lanes
PCIe 2.0 x16 Lanes
No GPU
-
-
- -
HD 766MHz Gen 5
96 Shaders
766MHz
150 GFLOPS FP32
No NPU
No NPU
No Cellular
No Cellular
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