Intel Core i7-2635QM vs Intel Core i7-640UM

Intel Core i7-2635QM
Intel Core i7-640UM $305
4 Cores
8 Threads
2GHz Clock
2 Cores
4 Threads
1.2GHz Clock
Socket
BGA 1224
Socket
BGA 1288
iGPU
HD 3000 1200MHz
230 GFLOPS FP32
iGPU
HD 500MHz Gen 5
100 GFLOPS FP32

GB6 Single-Core

  • 48% faster vs Core i7-640UM
  • 32% slower vs Core i7-2635QM
Core i7-2635QM - GB6S 450
x1.48
Core i7-640UM - GB6S 305
x1

GB6 Multi-Core

  • 3.08x faster vs Core i7-640UM
  • 68% slower vs Core i7-2635QM
Core i7-2635QM - GB6M 1,385
x3.08
Core i7-640UM - GB6M 450
x1
  • 66% faster vs Core i7-640UM
  • 40% slower vs Core i7-2635QM
Core i7-2635QM - 21.3GB/s
x1.66
Core i7-640UM - 12.8GB/s
x1
  • 150% higher vs Core i7-640UM
  • 60% lower vs Core i7-2635QM
Core i7-2635QM - 45W
x2.5
Core i7-640UM - 18W
x1
  • 2.3x faster vs Core i7-640UM
  • 57% slower vs Core i7-2635QM
Core i7-2635QM - 230 GFLOPS FP32
x2.3
Core i7-640UM - 100 GFLOPS FP32
x1
GB6S 450
11%
GB6M 1,385
5%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Sandy Bridge
Architecture
Westmere
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
Arrandale
-
-
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/1/2011
Release Date
1/1/2010
Foundry
Intel
-
Foundry
Intel
Intel (iGPU Die)
Node
32nm
-
Node
32nm
45nm (iGPU Die)
Die Size
216 mm²
-
Die Size
81 mm²
114 mm² (iGPU Die)
Transistor Count
1.2 Billion
-
Transistor Count
382 Million
177 Million (iGPU Die)
4 Cores
2 Cores
8 Threads
4 Threads
2GHz
2.9GHz Boost
-
1.2GHz
2.27GHz Boost
9x Multiplier
Overclocking
Locked
-
-
-
Overclocking
Locked
Voltage
0.73V 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
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
4MB Shared
16-way set associative
Channels
2
Channels
2
Max Memory
16GB
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
400MHz
Transfer Rate
800MT/s
Bandwidth/Channel
10.7GB/s
Bandwidth
21.3GB/s
Bandwidth/Channel
6.4GB/s
Bandwidth
12.8GB/s
TDP
45W
TDP
18W
Temp
100°C Max
Temp
105°C Max
PCIe 2.0 x16 Lanes
PCIe 2.0 x16 Lanes
HD 3000 1200MHz
96 Shaders
1200MHz
230 GFLOPS FP32
HD 500MHz Gen 5
96 Shaders
500MHz
100 GFLOPS FP32
No NPU
No NPU
No Cellular
No Cellular
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