i7-620M与i5-540M的区别？
本帖最后由 roob 于 2010-9-11 10:24 编辑i7-620M与i5-540M 这两个内核架构都一样吧，从Intel网上上看，差别就在主频和三级缓存，怎么会把一个叫I7一个叫I5呢？很奇怪！
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NameIntel® Core™ i7-620M Processor (4M Cache, 2.66 GHz)Intel® Core™ i5-540M Processor (3M Cache, 2.53 GHz)
Code NameArrandale Arrandale StatusLaunchedLaunched
Launch DateQ1'10Q1'10
Processor Numberi7-620Mi5-540M
# of Cores22
# of Threads44
Clock Speed2.66 GHz2.53 GHz
Max Turbo Frequency3.333 GHz3.066 GHz
Cache4 MB Intel® Smart Cache3 MB Intel® Smart Cache
Bus/Core Ratio2019
Bus TypeDMIDMI
System Bus2.5 GT/s2.5 GT/s
Instruction Set64-bit64-bit
Instruction Set ExtensionsSSE4.1, SSE4.2SSE4.1, SSE4.2
Embedded Options AvailableYesNo
Lithography32 nm32 nm
Max TDP35 W35 W
1ku Bulk Budgetary Price$332.00$257.00
Memory Specifications
Max Memory Size
(dependent on memory type)8 GB8 GB
Memory TypesDDR3-800/1066DDR3-800/1066
# of Memory Channels22
Max Memory Bandwidth17.1 GB/s17.1 GB/s
Physical Address Extensions36-bit36-bit
ECC Memory SupportedNoNo
Graphics Specifications
Integrated GraphicsYesYes
Intel® HD GraphicsYesYes
Intel® HD Graphics with Dynamic FrequencyYesYes
Graphics Base Frequency500 MHz500 MHz
Graphics Max Dynamic Frequency766 MHz766 MHz
Intel® Flexible Display Interface (Intel® FDI)YesYes
Intel® Clear Video TechnologyYesYes
Intel® Clear Video HD TechnologyYesYes
Dual Display CapableYesYes
Macrovision* License RequiredNoNo
Expansion Options
PCI Express Revision2.02.0
PCI Express Configurations1x161x16
# of PCI Express Ports11
I/O Specifications
Networking Specifications
Package Specifications
Max CPU Configuration11
TJUNCTION105°C105°C
Package SizerPGA 37.5mmx 37.5mm, BGA 34mmx28mmrPGA 37.5mmx 37.5mm, BGA 34mmx28mm
Lithography32 nm32 nm
Processing Die Size81 mm281 mm2
# of Processing Die Transistors382 million382 million
Graphics and IMC Lithography45 nm 45 nm
Graphics and IMC Die Size114 mm2114 mm2
# of Graphics and IMC Die Transistors177 million177 million
Advanced Technologies
Intel® Turbo Boost TechnologyYesYes
Intel® Hyper-Threading TechnologyYesYes
Intel® Virtualization Technology (VT-x)YesYes
Intel® Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® Trusted Execution TechnologyYesYes
AES New InstructionsYesYes
Intel® 64YesYes
Idle StatesYesYes
Enhanced Intel SpeedStep® TechnologyYesYes
Thermal Monitoring TechnologiesYesYes
Intel® Fast Memory AccessYesYes
Intel® Flex Memory AccessYesYes
Execute Disable BitYesYes
I7 620就同I5的马甲 好像整个I7-600系列，都和I5内核架构等等都一样的吧！ 是的I7 6系列与I5构架都一样 I7 720 820 920才是4核 性能应该差距不大 intel喜欢搞马甲，呵呵 差不多啦 i7-620M与i5-540M就显存与频率的差别其他都一样 intel换着马甲的赚钱呢