JohnnyGotham wrote:I need help with homework.
What are these and how do the following Help or Hinder a Computer system?
Shared Dual Channel DDR SDRAM
1MB L2 Cache
800 MHz FSB
Pentium 4 Processor 530 with HT Technology
Laptop Specific
Centrino Processor
Pentium M processor 725 (How does this compare to a Pentium 4?)
Flat Panel Displays:
What do the following mean and what is good for purchase if you were buying a display?
mm dot pitch
cd/m Brightness
Contrast Ratio
Well, "Shared Dual Channel DDR SDRAM" sounds like it is 2 DDR sticks that use dual channel technology (2 400MHz DDRs = 800MHz Bus in that type of technology) that shares itself with the GPU, the graphics processor. This is the case for onboard graphics. It is always better to have a card for your GPU so that it can have its own memory which is known as GDDR.
"1MB L2 Cache" is memory on the processor that is slower than L1 Cache but faster than the RAM. 1MB is a fairly good amount of L2 Cache in this period of technology.
"800MHz FSB" is the speed between the CPU and the memory controller if the memory controller is seperate (like in the Intel Pentiums and the old AMD K7s = Athlons, Durons, Athlon XPs, Athlon MPs, and some Semprons) The Pentium 4s are the only CPUs that have a 800MHz FSB. AMD only went up to 400MHz with the Athlon XP 3000 and 3200. Then they integrated their memory controller in their K8 series (Athlon 64s, Opterons, Turions, and some Semprons). An 800MHz FSB is nothing compared to the FSB found on a K8. The K8 has no FSB because the memory controller is onboard, thus there is no latency (delay) between the CPU and the memory controller.
A "Pentium 4 Processor 530 with HT Technology" is an Intel CPU that is clocked at 3.0GHz, has 1MB of L2 cache, has a 800MHz FSB, is built with 90nm technology, and is based off of the LGA775 socket. It has Hyper Threading technology which simply put, cuts the CPU in half to allow itself to better undertake multiple tasks. IT DOES NOT DOUBLE YOUR SPEED! Basically, you end up with 2 Pentium 4s clocked at 1.5GHz, each with 512MB of L2 cache, and each with a 400MHz FSB. If you were to play high-tech games (Doom 3) on this system with Hyper Threading on, your frames per second (FPS) would be very low. Even with Hyper Threading off, this CPU can be found at the bottom of the
charts for gaming performance. Games are known to be the best benchmark for a CPU because it tests every single major aspect of a computer. It is also at the bottom for
encoding and
editing. Don't forget
multitasking,
3D rendering, and
workstation applications. This CPU is also very hot since Intel messed up 90nm technology so badly. 90nm was to lower the power requirements, not raise them. You'll see temps as high as 70C on this CPU. 50C is the norm for air cooling. The standard cost of this product is
$194.99. You can get an Athlon 64 3200 with a Venice core (90nm and SSE3 are included technologies) for
$190.00.
A "Centrino Processor" is the Intel version of the Turion. Basically, its a fancy name for the Pentium M. The Centrinos have nothing special about them. Simply put, they aren't with the time. In these days, people want 64-bit technology. However, since it has a Pentium M core, it beats the Pentium 4 in IPC (instructions per clock). Thus, it would own a P4 at the same clock speed (GHz). However, the Turions are faster and carry 64-bit technology.
A "Pentium M processor 725" is clocked at 1.6GHz, has 2MB of L2 cache, has a 400MHz FSB, and is built with 90nm technology. This CPU can now be installed in desktops due to new motherboard designs. This CPU has a superior core to the Pentium 4s and would be advised over the Pentium 4s. It is cooler, faster, and just plain better. However, a K8 CPU would always be better, since this CPU lacks 64-bit technology.
"mm dot pitch" is the distance between the pixels on a screen. This really doesn't matter sincea big screen with a low resoluion will have a huge dot pitch and a small screen with a high resolution will have a low dot pitch. Average dot pitches are 0.255mm to 0.297mm.
"cd/m Brightness" is the brightness of the monitor. You want a high brightness. Anything above 250 should be good.
"Contrast Ratio" is the differance of the colors. You also want this to be high. 400:1 or higher is good.