Taken From: http://www.xbitlabs.com/articles/cpu/display/core2quad-q6600_12.html
Core 2 Duo is a dual-core processor while Core 2 Quad is a four-core processor.
Comparison made between Core 2 Quad Q6600 VS. Core 2 Duo E6850. Both processors priced about the same on the market.
"According to our tests and numerous overclockers’ reports online, quad-core Core 2 Quad Q6600 processors can overclock up to 3.6GHz with proper air-cooling. In this case they can perform better than Core 2 Duo CPUs overclocked to their maximum. Moreover, we see this tendency even in those applications that are not optimized for multi-core processors and that are getting fewer day by day. As we saw there are very few tasks left, where overclocked quad-core processors cannot outperform overclocked dual-core CPUs. They defeat their rivals not only thanks to twice as many computational cores, but also thanks to twice as large L2 cache.
So, we think Core 2 Quad Q6600 seems to be a much more attractive offering these days than Core 2 Duo E6850.
However, those computer users who do not want to mess with processor overclocking may think differently. In this case Core 2 Duo E6850 with 25% higher clock speed (3.0GHz vs. 2.6GHz) performs better in a lot of applications, including games. Moreover, it is also more economical. As a result, the most optimal choice for a system working at nominal speeds would depends a lot on the type of tasks it is intended for.
Nevertheless, we shouldn’t forget that most upcoming applications and games are being designed with multi-threading in mind. That is why Core 2 Quad Q6600 may be a more promising solution even if used in its nominal mode."
Sunday, May 31, 2009
Intel's Core Duo vs. Core 2 Duo
Taken from: http://tech.yahoo.com/blogs/null/8263
Core Duo is Intel's first dual-core CPU. Dual core means there are 2 cores on a single die or simply put, two chips in one package. Core Duo conserves substantial power and good performance.
Core 2 Duo is the 2nd dual-core CPU. Chips are built uisng the same prodution process and fit in the same sockets as Core Duo chips.
Same frontside bus speed (667MHz) but Core2 Duo has faster clock speed (2.67GHz). Same L2 cache however Core2 Duo architecture have more sophisticated processing abilities. Core2 Duos outperform Core Duo computers on tasks across the board by about 30%. Core is gone from the market so pricing for Core2 Duo is about the same as Core nowadays.
Latest technology is Core 2 Extreme XQ6700 which is a four-core processor.
Note: Core 2 Extreme XQ6800 is still a dual-core processor but just a fancier version of Core 2 Duo.
Core Duo is Intel's first dual-core CPU. Dual core means there are 2 cores on a single die or simply put, two chips in one package. Core Duo conserves substantial power and good performance.
Core 2 Duo is the 2nd dual-core CPU. Chips are built uisng the same prodution process and fit in the same sockets as Core Duo chips.
Same frontside bus speed (667MHz) but Core2 Duo has faster clock speed (2.67GHz). Same L2 cache however Core2 Duo architecture have more sophisticated processing abilities. Core2 Duos outperform Core Duo computers on tasks across the board by about 30%. Core is gone from the market so pricing for Core2 Duo is about the same as Core nowadays.
Latest technology is Core 2 Extreme XQ6700 which is a four-core processor.
Note: Core 2 Extreme XQ6800 is still a dual-core processor but just a fancier version of Core 2 Duo.
Sunday, May 24, 2009
HDD vs. RAM
Taken From: http://www.sysopt.com/forum/archive/index.php/t-100678.html
You are in a classroom. The teacher has a filing cabinet, a desk, and a black board.
The teacher's filing cabinet is used to store all of her files. She keeps records of her students, her teaching books and answer keys. If it is important, and she doesn't want to lose it, this is where she puts it. All the papers are separated by folders, and labelled so she can find them quickly. There is a limited amount of space in her filing cabinet, though. She still has enough room, but it is getting a little tight, so she needs to occasionally go through and get rid of things she no longer uses or needs (disk cleanup).
To help her find things faster, she also occasionally moves files back into the right order, because she's always in a hurry and puts things back in the first available spot (defrag). The filing cabinet, BTW, is about 15 feet from where she stands.
The teacher's desk is where she puts the files that she has pulled from the filing cabinet. She has an extremely small desk, so it can only hold one document at a time, so sometimes she uses the top of the filing cabinet for a little extra room for a couple more files that she's using. The desk simply holds the file so that she can copy it onto the blackboard. She cleans off the desk often. Everytime she needs to use a different file, she puts the old one back in the filing cabinet and replaces it with the new file. If she knows she's going to use it again, she'll put it on top of the filing cabinet.
As she's teaching, the blackboard can get quite full. If she wants to save what's written, she must copy it to a blank sheet of paper and put it into the filing cabinet. She can erase a portion of it if she wants, too. This will make enough space for her to work on something else. She draws lines to separate what she is working on.
If, at the end of the day there is anything left on the chalkboard, the janitor will come and erase it, so it's important that she copies it down.
Also, if the school closes for whatever reason, the janitor will rush in, and clean the chalkboard so he can get home as fast as possible. If this happens, the teacher has lost any notes she didn't copy down and put into the filing cabinet.
KEY:
Filing Cabinet = Hard drive
Top of filing cabinet = Swap file (virtual RAM on HDD)
Desk = Cache
Blackboard = RAM
Teacher = Processor
Janitor = Loss of power (shut down system or failure)
This post is partially correct, as no analogy can FULLY explain exactly what happens when processing data. It is meant as a simple way to explain to someone how the HDD/RAM/CACHE/SWAP FILE system works.
You are in a classroom. The teacher has a filing cabinet, a desk, and a black board.
The teacher's filing cabinet is used to store all of her files. She keeps records of her students, her teaching books and answer keys. If it is important, and she doesn't want to lose it, this is where she puts it. All the papers are separated by folders, and labelled so she can find them quickly. There is a limited amount of space in her filing cabinet, though. She still has enough room, but it is getting a little tight, so she needs to occasionally go through and get rid of things she no longer uses or needs (disk cleanup).
To help her find things faster, she also occasionally moves files back into the right order, because she's always in a hurry and puts things back in the first available spot (defrag). The filing cabinet, BTW, is about 15 feet from where she stands.
The teacher's desk is where she puts the files that she has pulled from the filing cabinet. She has an extremely small desk, so it can only hold one document at a time, so sometimes she uses the top of the filing cabinet for a little extra room for a couple more files that she's using. The desk simply holds the file so that she can copy it onto the blackboard. She cleans off the desk often. Everytime she needs to use a different file, she puts the old one back in the filing cabinet and replaces it with the new file. If she knows she's going to use it again, she'll put it on top of the filing cabinet.
As she's teaching, the blackboard can get quite full. If she wants to save what's written, she must copy it to a blank sheet of paper and put it into the filing cabinet. She can erase a portion of it if she wants, too. This will make enough space for her to work on something else. She draws lines to separate what she is working on.
If, at the end of the day there is anything left on the chalkboard, the janitor will come and erase it, so it's important that she copies it down.
Also, if the school closes for whatever reason, the janitor will rush in, and clean the chalkboard so he can get home as fast as possible. If this happens, the teacher has lost any notes she didn't copy down and put into the filing cabinet.
KEY:
Filing Cabinet = Hard drive
Top of filing cabinet = Swap file (virtual RAM on HDD)
Desk = Cache
Blackboard = RAM
Teacher = Processor
Janitor = Loss of power (shut down system or failure)
This post is partially correct, as no analogy can FULLY explain exactly what happens when processing data. It is meant as a simple way to explain to someone how the HDD/RAM/CACHE/SWAP FILE system works.
VGA and DVI
I've been learning all these technical terms with my new account's training so I thought of blogging about it so that it sticks on my poor, abused memory kernel of a brain.
2 Kinds of Video Out Ports: VGA and DVI
VGA: sends analog signals which is OK for CRT monitors but bad for LCD monitors
DVI: sends digital signals which is perfect for LCD monitors (Lomi's Choice!)
2 Kinds of Video Out Ports: VGA and DVI
VGA: sends analog signals which is OK for CRT monitors but bad for LCD monitors
DVI: sends digital signals which is perfect for LCD monitors (Lomi's Choice!)
Subscribe to:
Posts (Atom)
