December 18th, 2003 7:24 am - Doc | [ Bottom ]
has a new full range of Hyper-Threading Technology central processing units.
With their new Intel Pentium 4 processors, that feature an advanced 800 MHz
system bus with 512KB of full speed L2 cache and have speeds that range from
2.40C to 3.20 GHz. Hyper-Threading Technology enables the processor to execute
two threads (instructions that are sent to the processor) in parallel - so
software can run more efficiently and can multitask more effectively than normal
non-hyper threading processors without the use of two actual processors. Intel
has their new line up of 800 MHz front side bus processors built with
0.13-micron technology. The P4 3.2C has been built on the new D1 revision of the
Northwood core and the default voltage has been raised to 1.55V from 1.525V
This review is
tested with an Intel Pentium 4 3.2C Engineering Sample. An Engineering Sample is much like a normal 3.2 processor, however the feature that separates the ES from a normal 3.2 is the unlocked multiplier. Having an unlocked multiplier allows
the processor to easily clock between 2.4 to 3.2, upping the FSB to 225 allows the processor to clock at 3.6Ghz which is the maximum speed being tested in this article.
Intel has managed to increase the clock of the front side bus from 133 to 200
MHz. That is nearly a boost of 50%, which enables the bandwidth to
increase from 4.2 to 6.4 GB/s. To use the advantages of the processor, a 875P Canterwood chipset motherboard
will be needed. The Canterwood line of motherboards now support dual channel
DDR400 memory and have integrated Serial ATA along with AGP 8x.
Channel is now widely used along side of the 875P motherboards and 800 MHz processors
such as the Intel 3.2 MHz CPU. The theoretical memory bandwidth is 6.4 GB/s
which is synchronous to the bandwidth of the processor. For the dual channel to
be activated, the Dual Inline Memory Module (DIMM) configuration for each
channel must be the same as the other. Usually the motherboard will be color
coded for easy installation. The modules must be the same capacity and in in
pairs, for example: 2x 128 MB, 2x256 MB or 2x512 MB. The RAM will also needs to be
either single sided or double sided. To check which RAM it is, simply examine
the ram to see if there are memory banks on one side or both. The 875p Canterwood chipset also supports ECC memory.
Intel 3.2 MHz CPU also comes with a thermal monitor feature, which when enabled
the Thermal Control Circuit (TCC) is activated. When the temperature reaches the
maximum point, the TCC reduces power by modulating (starting and stopping) the
internal processor core clocks. Streaming SIMD Extensions 2 (SSE2) is another
feature of the Intel 3.2 MHz processor. SSE2 enables break - through levels of
performance in multimedia, 3D graphics, video encoding and decoding.
shows the Intel's 3.2 ES details and the Unlocked Multiplier, which in fact in the Abit IC7, 875p chipset has a Multiplier range of 8-16, not 12-16 as CPU-Z shows. This allows for settings such as 14x 257fsb which is just like 16x
225fsb, but with a higher FSB the RAM is running faster which results in greater buffered