BleepingComputer.com: What Cpu Will Work

Technically couldn't you underclock it and make the proc run that many ghz faster?

how much does th GHZ make in difference

http://www.geeks.com/details.asp?invtid=P4...478&cat=CPU

is 1.8GHz worse than 2.4GHz even though the 1.8 is a pentium with 4 times the cache an is still 400MHz

Hey, nice to see you made your own post!

Well I believe the 1.8ghz P4 with 512kb L2 cache is definetly better. It's quadruple the cache you had before. Even though your celeron had like .2ghz more? Anyways, it would probably be better for a laptop since the slower ghz frequencies usually run cooler. 200mhz<4x cache size, performance wise. It should work in your laptop. Get on Aim sometime or xfire and we'll talk.

How come a processor has two hertz ratings? Where do both of them come from?

The FSB is the speed at wich the CPU comunicates with the northbridge. The processor clock speed is the speed at wich the processor "crunches" numbers.

i dont fully understand your question but i think
the 2 speeds are for the processor speed an the bus speed

btw sneaky.
can you tell me which is better a 1.8ghz proccesor with 512L2cache or a 1.3ghz proccesor with 1mb of cache

This post has been edited by Test36: 09 June 2007 - 04:21 PM

Guide to understanding the FSB: http://www.directron.com/fsbguide.html

If your referring to Two Intel P4 you should include L1 cache also since would make a difference too. As far as noticible differences they would be nill on the 1.3 - 1.8 and depending on the application the larger cache would reduce memory lag. So LARGE programs that require alot of memory writes and reads would benifit from the larger cache. A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are to cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory.


Reference: Wikipedia

Well I've already read up on the FSB and related stuff in the Guide to Upgrading and Repairing PC's 2006 but they don't have to take the time to answer all of my questions in that book. Could the overall speed be measured by multiplying the FSB and core clock?

Hey just wondering what is the problem with the practicality of one really big cache like one 8M cache to eliminate the need for L2 and L3?

This post has been edited by Ryan 3000: 10 June 2007 - 02:40 PM

Processor speed = processor multiplier x system clock speed (which is directly related to the FSB)

Cache onboard the processor is significantly faster than cache that is off the processor. Additionally, it's more expensive to build in the faster cache - so it's a marketing decision on what to include.

Now, L3 cache is typically installed on the mobo - so that'll be a decision by the mobo manufacturer on how to implement that.