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build several testing stations specially for CPU ,please buy it with worry-free.
Core i7-640M (PGA988) specifications
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General information |
|
Type |
|
Market segment |
Mobile |
Family |
|
Model number ? |
|
CPU part number |
|
Frequency ? |
2800 MHz |
Maximum turbo frequency |
3467 MHz (1 core) |
Low power frequency |
1200 MHz |
Bus speed ? |
2.5 GT/s DMI |
Clock multiplier ? |
21 |
Package |
988-pin micro-FCPGA (rPGA988A) |
Socket |
|
Size |
1.48″ x 1.48″ / 3.75cm x 3.75cm |
Introduction date |
|
End-of-Life date |
Last order date is April 5, 2012 |
Price at introduction |
$346 |
S-spec numbers |
|
Architecture / Microarchitecture |
|
Microarchitecture |
Westmere |
Platform |
Calpella |
Processor core ? |
|
Core stepping ? |
K0 (Q4C9, SLBTN) |
CPUID |
20655 (Q4C9, SLBTN) |
Manufacturing process |
0.032 micron |
Die |
81mm2 (CPU die) |
Data width |
64 bit |
The number of CPU cores |
2 |
The number of threads |
4 |
Floating Point Unit |
Integrated |
Level 1 cache size ? |
2 x 32 KB 4-way set associative instruction caches |
Level 2 cache size ? |
2 x 256 KB 8-way set associative caches |
Level 3 cache size |
4 MB 16-way set associative shared cache |
Physical memory |
8 GB |
Multiprocessing |
Not supported |
Features |
|
Low power features |
Enhanced SpeedStep technology ? |
Integrated peripherals / components |
|
Integrated graphics |
GPU Type: HD (Westmere) |
Memory controller |
The number of controllers: 1 |
Other peripherals |
|
Electrical / Thermal parameters |
|
Maximum operating temperature ? |
105°C |
Thermal Design Power ? |
35 Watt |