http://www.howtogeek.com/forum/ How-To Geek Forums Topic: FSB - CPU and RAM, probably a silly question en Thu, 08 Jan 2009 22:57:57 +0000 http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36249 Mon, 21 Jul 2008 03:02:40 +0000 sparky7415 36249@http://www.howtogeek.com/forum/ <p>I think if you have a ScottW and a raphoenix built machine and toss in a Lighthouse and whs,that would be one screeming 'puter with security and backup galore.And let's not forget JD. </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36244 Mon, 21 Jul 2008 02:29:16 +0000 raphoenix 36244@http://www.howtogeek.com/forum/ <p>Antman,</p> <p>ScottW is very correct if you are considering a build for just normal use however if you are going to build a performance machine, you may want to take a look at these two fairly current articles. One deals with the P45 Intel chipset in your up coming Asus P5Q build and the other discusses Memory.</p> <p><a href='http://www.tomshardware.com/reviews/intel-p45-chipset,1961.html'>http://www.tomshardware.com/reviews/intel-p45-chipset,1961.html</a></p> <p><a href='http://www.tomshardware.com/reviews/ram-speed-tests,1807.html'>http://www.tomshardware.com/reviews/ram-speed-tests,1807.html</a></p> <p>Regards,<br /> Rick P. </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36158 Sun, 20 Jul 2008 19:48:30 +0000 Antman 36158@http://www.howtogeek.com/forum/ <p>Thanks guys! </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36149 Sun, 20 Jul 2008 19:04:43 +0000 whs 36149@http://www.howtogeek.com/forum/ <p>Good old Wikipedia has a pretty good summary (although the examples are from older systems). <a href='http://en.wikipedia.org/wiki/Front_side_bus'>http://en.wikipedia.org/wiki/Front_side_bus</a> </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36146 Sun, 20 Jul 2008 18:53:53 +0000 ScottW 36146@http://www.howtogeek.com/forum/ <p>Antman, the short answer is that this is not a problem. There are folks out there, especially overclockers, who insist that a 1:1 ratio between the FSB and memory bus is optimal, but I have never seen any evidence to show why. I believe this is a holdover from older systems.</p> <p>The way it works is this. The Northbridge divides the CPU bus (FSB) from the memory bus. This allows the memory to run at a different speed than the FSB without any performance degradation. Unless you choose some ridiculously mismatched parts, the memory will always be running slower than the CPU, so there will be times when the processor is waiting for the memory to catch up for certain operations.</p> <p>For CPU-bound tasks, such as heavy math, the memory speed is not a factor. When doing memory-bound tasks, say sorting or recalculating large spreadsheet tables, the memory speed will be the limiting factor in the operation. For I/O-bound tasks, such as reading data from the network and writing it to the hard drive, the speed of the I/O bus and components are the limit. Each step down this scale is an order of magnitude difference. However, most people doing everyday tasks will have a balance of different kinds of operations. </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36133 Sun, 20 Jul 2008 18:07:46 +0000 raphoenix 36133@http://www.howtogeek.com/forum/ <p>Antman,</p> <p>Go to link below and see DDR2 data rate tranfer table.</p> <p><a href='http://www.tech-faq.com/ddr2-sdram.shtml'>http://www.tech-faq.com/ddr2-sdram.shtml</a></p> <p>Regards,<br /> Rick P. </p> http://www.howtogeek.com/forum/topic/fsb-cpu-and-ram-probably-a-silly-question#post-36108 Sun, 20 Jul 2008 16:48:48 +0000 Antman 36108@http://www.howtogeek.com/forum/ <p>I'm buying a new PC in a few months which will include an Asus P5Q motherboard. I have a choice of components, so my question is: </p> <p>If I buy a Core 2 Duo or Core 2 Quad CPU with 1333MHz FSB, and DDR2 RAM that is 1066MHz, will the CPU performance be throttled by the lower speed of the RAM? Not quite sure how this all works. </p>