Monday, October 13, 2008

Difference Between Intel core 2 duo vs Intel dual core vs Intel Pentium D











Whats the difference between Difference Between "Intel core 2 duo" vs "Intel dual core".many of my frnds ask me this same question. so let me help them and u all.

The Core 2 Duo is Intel's second generation (Hence, Core 2) processor made for desktops and laptops designed from the ground up to be fast while not consuming nearly as much power as previous CPUs, Dual core is simply a generic term referring to any processor package with two physical CPUs in one.

Dual Core is better because it has 2 processors. The more the better. (Dell has a Quad Core, 4, processor computer and Mac has a Dual Quad Core processor, i.e.. 8 processors). The main difference is that core duo is 32-bit processor, where as Core 2 Duo is 64-it processor, also for Core 2 Duo, the cache memory is 4MB compared to 2MB of Core Duo.

Well... the other main difference is in the cache memory they use.....
The Dual Core processors use single cache shared between the 2 cores... plus, the size of this cache memory is usually less as compared to Core2 Duo ones (typically in size of 128 KB to around 512 Kb or 1 MB)......

On the other side Core 2 Duo processors also use 2 cores but they have dedicated cache memory assigned to each of the core. so in effect there are two cache memories ( its a static memory - Static RAM - which is costly - and charged per KB size - because they are embedded into your processors.... and your processor stores instruction set into these cores and also info of frequently accessed memory locations so that it doesn't need to go to your main memory - RAM - on motherboard - every time and search indexes to get these locations. )... so, the more cache your processor has got, the more costly will it be and more info can it store and faster will it become.... coming back to Core 2 Duo processors.... the cache size is typically 1 MB to up to 4 / 6 / 8 /12 Mb of size. so if a core 2 duo processor config states 4 Mb of cache, then effectively your 2 cores will use 2 Mb each... now you can make out the difference in speed between a dual core using 512 cache and a Core 2 Duo using 4 Mb of cache... and the same reason why core 2 duo processors are costly and more faster (about 40 %) than the dual core ones...

Finally... to summarize, dual core procs (less cache size and that too shared cache between two cores) are strip in version of Core 2 Duo procs (more cache size and independant cache between each of the two cores), which make Core 2 Duo procs costlier and faster than Dual Core procs... so the winner is Core 2 Duo (and its comes with a price...)

hope everyone is clear now....

Enjoy your right of knowledge sharing ...


Sunday, September 28, 2008

~~~~~ Titanic in the sea ~~~~~

" It's like being on the Titanic and seeing there is only one lifeboat left and we are all trying to dive into it! "

The very first day of September i was watching the movie "Titanic". the movies shows the rattling happening of the disaster of Titanic giving a very romantic touch. The very first thought tat clicked in my mind was does this Titanic still exist.

hmmm.. If we look around in this materialistic world we could encounter with lots of much behemoth titanic sailing within us. All have skepticism that they are the non-bankrupted in the world. but the time shows them reality.Its the general human tendency. But then what could a human being do?? so its better to keep extra supporting safety boats with you .

Googling ameliorate my knowledge with the literal meaning of Titanic. Titanic means "Of great force or power". Because of It tremendous size and unexampled luxury and completeness it was really TITANIC. It was considered as the "unsinkable lifeboat" of that time It was the outcome of the 3 years hardworking of the hundred of peoples .

But alas, we all know what had happened. In Its very first voyage with fifteen hundred passenges, it had gone to hundred of fathom in the deep see. It is among the one of the biggest disaster of the century . The captain of the ship was even so sure of its unsinkality and safety that they carry only one third safety boats with them. Mentating the reason for this action, again realized me the general human weakness i.e overconfidence. Psychologists have determined that this cocksureness among people compel them to overestimate their knowledge, underestimate risks, and exaggerate their ability to control events.



Friday, August 22, 2008

Law Of Conservation

"Life is really simple, but we insist on making it complicated." ~Confucius.

Life and this world they have a nature to follow simple and symmetrical laws.All the great discoveries and all the inventions were result of a simple concept in the background.

Most of the laws that are valid in physics chemistry also find application in zoology and botany.The other day I was sitting at the backyard of my house and suddenly a thought tickled my mind.The thought which made me felt excited was whether the world follow law of conservation in almost all domain of life.

The question that created a thud in my mind ,was that does the total amount of happiness in the world is constant i.e. if a person is sad then he can be happy only at the cost of someone others happiness?? so we are happy by making someone cry, these thought are very wired, but i think that there should be some logic behind this.

“Shoot for the moon. Even if you miss it you will land among the stars.”

Start to karna he hai

Finally I did this. Writing on a blog was a nightmare for me. there was a simple guy who thinks a lot, but never express himself in the public. and friend its very true that if u cant express ur self then u had a lot of stuffes inside u n that keep on baking within u. so its better to express them. So I think now that he can express now what he thinks.