FSB in AMD CPU

fsb means front side bus.....
fsb determines the clock at which the processor works including multiplier.fsb has to be there on every cpu....in one name or other...its not known as fsb on amd64 and sempron 3100 its known as
hyper transport bus.....a diff and better technology.
basically it defines the speed of a processor.

dinesh_singh said:

fsb determines the clock at which the processor works including multiplier.fsb has to be there on every cpu....in one name or other...its not known as fsb on amd64 and sempron 3100 its known as
hyper transport bus.....a diff and better technology.
basically it defines the speed of a processor.

Click to expand...

WELL thanx i got all that.

If i'm not wrong, then

u mnt that da cpus which i hav mentioned r of better technology than da rest of da cpus in da list?
what r da multipliers which u mentioned?

Front-Side-Bus (FSB) is a term describing a Processor (CPU)-to-system memory data bus. It has also known as CPU bus speed, external CPU speed, memory bus and system bus. It is the speed that the CPU communicates with RAM (memory). The front side bus on a computer connects the processor to the north side bridge, which comprises the memory bus, PCI bus and AGP bus. In general, a faster frontside bus means higher processing speeds and a faster computer.

For example the Pentium 4 has a “400Mhz Front Side Bus”, but it is in fact 100Mhz ‘quad pumped’. This means that data is transferred twice per clock cycle, on the rising and falling edge (like DDR memory which will be mentioned later), and also transfers two bytes of data at a time to effectively give four times the throughput of a 100Mhz front side bus. How fast your processor runs at is determined by applying a clock multiplier to the frontside bus speed. For example, a processor running at 550MHz might be using a 100 MHz FSB; this means there is a clock multiplier setting of 5.5, thus the CPU is set to run at 5.5 times the MHz speed of the front side bus: basically equating to 100 MHz x 5.5 = 550 MHz. Athlon processors are available in multiples of 100MHz, 133Mhz, 266MHz 333MHz and now with the AMD K8 3200+ and AMD Athlon64 FX-51 1600MHz FSB.

Some motherboards offer the ability for the user to manually set the clock multiplier and FSB settings by changing jumpers. CPU and especially the "Big Name" computer manufacturers usually "lock" the preset multiplier setting into the chip or locked in the motherboard BIOS meaning manually-set multiplier settings are ignored in favor of the preset multiplier. When choosing a FSB speed for the CPU you chose, be aware that you'll need to purchase memory capable of this faster speed. Pushing the front-side bus to 110 MHz means you are also pushing your memory, be it PC100 (or higher, i.e. PC133), to 110 MHz. Typically a FSB today is dual or quad channel, meaning a FSB speed advertised as being "333 MHz" may actually be 166 MHz dual channel, effectively meaning 333 MHz of speed. CPUs work with front side bus speeds ranging from 133 MHz dual channel (266 MHz effective) to 200 MHz quad channel (800 MHz effective).

Multiplier

This number works with the bus speed to determine how fast the CPU is run. A multiplier of 4.5 coupled with a bus speed of 100 MHz yields a CPU speed of 450 MHz (4.5x100). Most of Intel's newest CPUs are multiplier locked in that only a specific multiplier can be used and not others (ie a 450 MHz CPU can only use a 4.5 multiplier, but not 4 or 5). The bus speed is independent and can be changed so that 4.5x100 and 4.5x103 will give different CPU speeds (provided the CPU will run at that

dinesh_singh said:

fsb means front side bus.....
fsb determines the clock at which the processor works including multiplier.fsb has to be there on every cpu....in one name or other...its not known as fsb on amd64 and sempron 3100 its known as
hyper transport bus.....a diff and better technology.
basically it defines the speed of a processor.

Click to expand...

hyper transport aint the speed of ur proccy

its 1000mhz in amd 64z

fsb used 2 connect the proccy 2 the memory controller , which was situated in the north bridge of the mobo . this memory controller then was connected the RAM slotz . due 2 this long pathway , latencies end 2 increase n hence the performance decreases

as u must b no-ing , the memory controller is integrated on the proccy die ( chip ) in the case of amd 64 . thus there aint no need 4 the conventional fsb , coz the memory controller is already on the proccy . in comes the hypertransport . hyper transport is the pathway connecting the RAM chips directly 2 the proccy , there being no need 2 route the data thru the north bridge

hope this answers ur querry

On the whole, U all mnt that da procs i mentioned r better faster n of better technology.

mamba said:

hyper transport aint the speed of ur proccy

Click to expand...

What do u mnt? Plz be clr.

mamba said:

its 1000mhz in amd 64z

Click to expand...

Whats AMD 64z?
Whats 1000MHz in AMD 64z?

The Incredible said:

On the whole, U all mnt that da procs i mentioned r better faster n of better technology.

mamba said:

hyper transport aint the speed of ur proccy

Click to expand...

What do u mnt? Plz be clr.

mamba said:

its 1000mhz in amd 64z

Click to expand...

Whats AMD 64z?
Whats 1000MHz in AMD 64z?

Click to expand...

u can call hypertransport a ' bus ' which directly connects the memory controller on ur proccy 2 the RAM DIMM slots . it runs at 1000mhz 4 the amd 64 porccies

btw , just have a habit 2 replace the ' s ' with 'z ' , at the end of a word ( as in amd 64z or 64s )

mamba said:

u can call hypertransport a ' bus ' which directly connects the memory controller on ur proccy 2 the RAM DIMM slots . it runs at 1000mhz 4 the amd 64 porccies

Click to expand...

Are there any other proccies with a better technology for desktop use costs below 8K.

Also, is there any AMD Athlon 64 proccy whose bus runs at mor than 1000mhz of speed.

get one athlon 64 fx...(if u can afford one nd find one).I think it has 1600 mhz HTB

the FSb is in the Processor itself !!!!


CHeers !!!