Now, let us start from scratch and try to understand what makes these processors so special and then we will go through the advantages and others.
Every processor has a core inside it which contains the brain. A single core chip is one containing unit which handles all the request given by the user e.g opening a word document(which is given from OS like Windows XP to processor).
As the demand has increased software, have become complex and heavy so when you run anti virus update while writing a document the overall performance of the system goes down resulting in performance degradation. This happens because there is only one core inside to handle all request.
So, if we can have more than one core, which can manage, and divide the work between it will result in higher performance and lower power consumption. So now we can imagine the QUAD has 4 cores what could be the idea.
It’s time to get little geeky here. Well don’t worry Its not going to be scary but simple as a cake. Let’s try to understand how quad works or basically how a multicore architecture works.
Take for an example if you are asked to work with more speed when the customers count increases how well can you work ? Even given full energy increasing load of customers slows you down resulting in high power consumption and low performance.
The Figure on left tells if the processor frequency is increased the performance also increases but due to high power consumption results in performance loss. However if, we look at the figure on the right, when another core is added it delivers 3 times the performance and consumes less power.
The Multi-core processors take advantage of the fundamental relationship between power and frequency. By incorporating multiple cores, each core is able to run on at lower frequency dividing the power among themselves which is normally consumed by the single processor. Don’t you think this idea works everywhere even in daily life!!.
Advantage of Quad over single or duo processors:-
In a dual core processor, there are 2 sets of cores. Generally the biggest disadvantage of a single or duo processor is that if either of them fails the whole system collapses but with quad, the major disadvantage of duo had been recovered. It has 2 sets (4 in total) that work in synchronization.
Thus if even one fails the system sustains with other. It has significantly less susceptibility because of absolute separation, isolation and operation of redundant channels. Because each channel has a pair of duo processor the dangerous failure is avoided. However, the most attractive advantage is lower life cycle cost (optimal per watt).
Some of the features of the quad are :-
- Wide Dynamic Execution: Instead of sending data through the pipe faster, Core 2 Duo will bite off larger chunks of data to process at once. It can also combine the identical parts of different data requests. This should translate into faster performance.
- Advanced Digital Media Boost: Every step in the multimedia processing chain is now 128-bit. They didn’t use to be. Now the CPU doesn’t have to translate the non-128 bit parts, saving it work and giving you faster multimedia performance.
- Smart Memory Access: Smarter traffic cop between the chip and memory.
- Advanced Smart Cache: Cache is the place where data lives between the processor and the memory. It’s broken into different levels: L1, L2, and so on for balancing the amount of data stored with the speed at which the chip can get to that data. Core 2 Duo is a dual-core chip, and while each core has its own L1 cache, they share a dynamic L2 cache. So if, core 1 needs only 1MB of L2, and core 2 could benefit from 3MB, Core 2 Duo chips can adjust that distribution on the fly. Old Pentium D’s and AMD’s dual-core Athlons have a fixed L2 cache per core, which means no load balancing, potentially wasting L2 cache space. Translation: better performance.
- Intelligent Power Capability: Intel incorporated the power management techniques of its laptop CPUs into the multi-platform Core architecture. This means a Core 2 Duo can shut off whatever parts it’s not using, reducing power consumption. So, you get not only smaller heat sinks and fans (which should make DIYers lives’ easier and overclockers’ potentially more exciting–see our pic), it also makes room for more micro-form-factor PCs.
Instead of sending data through the pipe faster, Core 2 Duo will bite off larger chunks of data to process at once. It can also combine the identical parts of different data requests. This should translate to faster performance. It works with Intel’s vPro technology.
I read details on it and was amazed to see how technology has changed and decided to include it my upcoming post which will be dedicated to this technology. Don’t forget to read the next post which will include the software and hardware vendor analysis.