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Crucial 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Micron Chipset Dual Channel Kit Desktop Memory Model CT2KIT25664AA1067. CAS Latency: 7 Voltage: 1.80V Multi-channel Kit: Dual Channel Kit. Dual channel memory slots, color-coded orange and yellow for this particular motherboard. Dual-channel-enabled memory controllers in a PC system architecture utilize two 64-bit data channels. Dual channel should not be confused with double data rate (DDR), in which data exchange happens twice per DRAM clock.

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We've spent hundreds of hours researching and comparing Ddr2 Motherboard of all specifications to find the best one for any need (or budget). Here are the results.

Contents

  • 3 Ddr2 Motherboard Reviews on Twitter

The Best Ddr2 Motherboard of 2020 – Top Rated & Reviewed

2,778 Reviews Scanned

Rank No. #1
Rank No. #2 Genuine Dell Intel Q45 Express LGA775 Socket Motherboard For Optiplex 960 Small Mini Tower (SMT) System Part Number: Y958C, H634K
  • Type: Motherboard Part Number: Y958C MPN: 0Y958C, CN-0Y958C
  • Processor/Chipset: Chipset: Intel Q45 Express Chipset w/ICH10DO Socket: LGA 775/Socket T Compatible CPU Brand: Intel Supported Processor: Intel Quad Core processors Intel Dual Core processors
  • Ram/Memory: Memory Type: DDR2 SDRAM Slot Qty: 4 Maximum Supported Memory: 8GB
  • Compatible Model: Optiplex 960 MT
  • Ship within 24 hours except for holidays and weekends
Rank No. #3 ASUS P5Q LGA 775 Intel P45 ATX Intel Motherboard
  • Support for the Intel Core 2 Extreme, Core 2 Quad, Core 2 Duo, Pentium Dual-Core, Celeron Dual-core, Celeron processors, 1600/1333/1066/800MHz system bus
  • Four DIMM sockets, designed to support up to 16 GB of DDR2 1200/1066/800/667MHz
  • 6 x SATA 3.0 Gb/s ports
  • 1 x UltraDMA 133/100/66
  • 1 x PCI-E x16, 2 x PCI-E x1, 3 x PCI
Rank No. #4 Tangxi Desktop Computer Motherboard,DDR2 Motherboard for AMD AM2 Series,2-Channel 4GB DDR2 800/667MHz,6-Channel Audio,PCI-E X16 /USB 2.0/SATA 2.0/RJ45/VGA/DVI Interface
  • The motherboard integrates the RTL8105E 100M network card and 6-channel audio chip. It does not integrate the integrated graphics card and supports the CPU core graphics card. The main chipset is AMD A780 / 760G and the CPU supports AMD AM2 series.
  • The memory slot has two DIMM slots, and the supported memory type is dual-channel DDR2 667/800 MHz, which can be expanded to 4G memory capacity.
  • While the motherboard integrates the high-quality graphics core, it also provides a PCI-E x16 graphics slot, which is convenient for consumers to connect independent graphics cards, and also provides a PCI slot.
  • The motherboard uses a reinforced 4-phase CPU power supply design. The materials used are basically high-quality capacitors, supplemented by a fully enclosed ceramic inductor, which ensures the stable operation of the motherboard. Multi-phase loop design provides good conditions for supporting multi-core processors.
  • The color of the slot bottom plate may be different for each batch. The product is continuously optimized and upgraded, and does not affect the normal use of product performance and functions. At the same time, this product contains a motherboard, a SATA cable and a bezel. If you have any questions, please contact us immediately and we will answer as soon as possible.
Rank No. #5 Intel DQ45CB Intel Q45 Socket 775 mATX Motherboard Dual DVI, Audio, eSATA, GbLAN & RAID
  • Intel Desktop Motherboard
  • Model: DQ45CB
  • Socket: LGA775
  • Form Factor: Micro ATX
  • Chipset: Intel Q45 Express
Rank No. #6 ASRock G41C-GS LGA 775 G41 DDR2+DRR3 8GB Micro ATX Motherboard
  • Chipset: Intel G41 and Intel ICH7
  • Supports Dual Channel DDR3 1333(OC) + DDR2 800
  • MEMORY:2 DDR3 1333(OC)/1066/800 DIMM UPTO8GB;2 DDR2 800/667/533 DIMM UPTO 8GB
  • SLOT: 1 PCI-EX16;1 PCI-EX1;2 PCI
  • Storage: 4 SATAII 3GB/S+ 1 ATA100(Support 2 IDE)
Rank No. #7 Desktop Computer Mainboard Supports 4 Slots DDR2 800 Dual Channel Motherboard for
  • Board type: M-ATX version
  • Maximum Memory Capacity: 8G
  • SATA interface: 4*SATA 3GB/s
  • Power connector: 4 pins * 1 24 pins * 1
  • Memory slot: DDR3*2
Rank No. #8 Genuine OEM Dell Optiplex 755 Desktop Motherboard Logic System Main Board Assembly DR845 WX729 Intel DDR2 Ram LGA775 Socket (Renewed)
Ddr2 slot colorado
  • Genuine OEM DELL Part
  • Main Logic System Board Assembly Motherboard
  • Fits Dell Optiplex 755 Desktop Form Factor Computer
  • PN: DR845 WX729
Rank No. #9 New DELL Optiplex 760 Desktop SFF Main Logic Integrated Intel Chipset System Pentium/Celeron CPU Processor Socket LGA775 DDR2 SDRAM Dimm Memory Expansion Slots PCI Express VGA/USB/Serial/Parallel/ESATA/RJ45 Lan Performance M863N Motherboard F373D
  • Genuine OEM DELL Part
  • Main Logic System Board Assembly Motherboard
  • Fits DELL Optiplex 760 Small Form Factor SFF Only
  • Motherboard only. Intel CPU/Memory/Fans NOT included
  • PN: F373D / M863N
Rank No. #10 Genuine Dell Version G33M02 For Inspiron 530 530s, Vostro 200 400, Systems Intel G33 Express DDR2 SDRAM Motherboard Logic Board Main Board Compatible Part Numbers: G33M02, G679R, K216C, CU409, RY007
  • Genuine Dell Motherboard For Inspiron 530 530s and Vostro 200/400 Systems. Please Note This is the G33M02 Model This motherboard comes in two varieties G33M03 and G33M02. They are essentially the same but require two different heatsinks and vary in capacitor placement. Please ensure this is the correct motherboard for your replacement. You may be required to purchase a new heatsink to install correctly.
  • Chipset: Intel G33 Express / Supported Processors: Many Intel Core 2 Duo / Quad Processors - But not all Known to work: E2180, E4400, E6550, E6600, E2140, E2180, E6320, E6700, E4300, E6420, E4500, E6750, E2220, E8300, E4700, E2200, E8200, E8400, E8500, E4600, E6850, Celeron D420, D430, D440
  • Memory: Up to 4GB Dual-Channel DDR2 SDRAM / Video: Integrated Intel Graphics Media Accelerator 3100 / Audio: Integrated 7.1 Channel Audio
  • Expansion Capabilities: PCI: 2 Slots PCIe x1: 1 Slot PCIe x16 (Graphics): 1 Slots / Motherboard Compatible Part Numbers: G679R, K216C, CU409, RY007, G33M02
  • Peripheral Interfaces: 1 DVI, VGA and 1 S-Video (with add-in PCI-Express video card), IEEE 1394 (optional): 1 - 6-pin serial connector, 10 USB ports (4 Front, 4 back) + 2 internal, 6 back-panel connectors for line-in, line-out, microphone, rear surround, side surround, two front-panel connectors for headphones/microphone, integrated 7.1 channel sound, Integrated 10/100 network interface,

Top Rated Ddr2 Motherboard to Buy Now

Ddr2 Motherboard Reviews on Twitter

[custom-twitter-feeds search='Ddr2 Motherboard']

Why You Should Buy Best Ddr2 Motherboard from Amazon

Amazon is not the only store that sell Ddr2 Motherboard. Another way to say roulette wheel. However, there are several compelling reasons why you should buy Ddr2 Motherboard from them, with the suitable Price and Reviews. Here are five:

(1) Amazon Makes Shopping Ddr2 Motherboard Personal

Star casino harvest buffet atlantic city. Amazon is very good at making recommendations of Ddr2 Motherboard based on your search history. From time to time, they will even show you discounted prices on Ddr2 Motherboard that you previously expressed an interest in. They also make your shopping experience a little easier by showing you items that you recently viewed.

(2) Amazon Checkout is Easy

Amazon checkout is easy, especially if you already have an account. You can add Ddr2 Motherboard to your cart and go through a multi-step checkout process, or you can buy Ddr2 Motherboard with only one click by using your stored credit card information.

(3) Amazon Has Lots of Social Proof

Before you make a purchase for Ddr2 Motherboard, you want to know that the company you are dealing with is legitimate and that others trust the company enough to make a purchase. You may also like to read what others are saying about the product in the review section. Amazon does all of this quite well.

(4) Amazon Has Great Ddr2 Motherboard Images and Descriptions

In addition to still images, many of Amazon's Ddr2 Motherboard have videos. This makes it easier for you to see exactly what you are purchasing. Amazon's Ddr2 Motherboard descriptions are also quite good. In many cases, Amazon repeats the descriptions furnished by the manufacturer. In other cases, they write their own.

(5) The Amazon Site is Easy to Navigate

Ddr2

Navigating the Amazon site is easy. Even though the site is huge, you will not feel overwhelmed when searching for Ddr2 Motherboard. This is partly due to Amazon's filtering process. You can search for items by brand, price or user rating. You can also search for specific features.

How to Choose the Best Ddr2 Motherboard (with Price and Reviews)

Although most Ddr2 Motherboard are similar, there are several differences worth noting. Here are nine criteria to consider when choosing an Ddr2 Motherboard:

(1) Ddr2 Motherboard Price and Reviews

Although price is not the only factor to consider, it is nevertheless extremely important. The price of an Ddr2 Motherboard should be in line with its value. You can compare Ddr2 Motherboard reviews to make sure you are getting a fair price. This is easy to do on Amazon.

(2) Demand

The demand for a particular Ddr2 Motherboard is a good indication of its ability to perform the functions for which it was designed. If a product has been around for a while and still has a high demand, it is likely a good product.

Ddr2 Slot Color

(3) Material

Ddr2 Slot Coloring Pages

Ddr2 Motherboard materials differ from manufacturer to manufacturer. Consider where and how you will be using your Ddr2 Motherboard to determine if one material would be better than another.

(4) Size

Like most products, Ddr2 Motherboards come in various sizes. Do you need a large Ddr2 Motherboardor a small one? Think about where you will use your Ddr2 Motherboard in order to determine the best size. You can also read the customer reviews on Amazon to see what others are saying about the size of the unit they purchased.

(5) Color

Ddr2 Motherboards also come in a variety of colors. Do you need a particular color? You should also consider whether the color of your Ddr2 Motherboard would have any effect on the efficiency of its operation.

(6) Durability

The durability of an Ddr2 Motherboard will be contingent on the materials used as well as the quality of the manufacturing process. Additionally, the type of Ddr2 Motherboard you purchase may affect its durability.

(7) Storage

Will you need to store your Ddr2 Motherboard? If so, you should consider the size and weight of the Ddr2 Motherboardto make sure that it can be stored properly. Also, give some consideration to the type of climate in which your Ddr2 Motherboard will be stored.

(8) Customer Ratings

Customer rating is one of the best criteria for choosing an Ddr2 Motherboard. It is hard to know exactly how an Ddr2 Motherboard will perform until you get it home and try it out.

(9) Warranty

Make sure the Ddr2 Motherboard you are considering is backed by a good manufacturer's warranty. If it isn't, you might be better off with another ones.

In this article we will be exploring the differences between DDR memory and DDR2 memory and also explaining a bit about the technology behind the two.
Firstly, DDR stands for Dual Data Rate and is the replacement for SDRAM. The best analogy we have come across for how DDR works is: If the memory is visualised as a bicycle pump, SDRAM 'pumps' push data into the 'tyre' each time the barrel of the pump is pressed down, whereas DDR pushes data both on the downstroke and the upstroke of the barrel so filling the 'tyre' at twice the speed.

Ddr2 Slot Colorado

DDR has a data rate of 200/266/333/400 MiB/s compared to DDR2 which has a data rate of 400/533/667 MiB/s, it is clear to see that from a speed point of view DDR2 continues where DDR leaves off. The table below courtesy of the Corsair website helps illustrate other notable differences.
DDRDDR2
Data Bus64 bits64 bits
Data Rate200/266/333/400 MiB/s400/533/667 MiB/s
Bus Frequency100/133/166/200 MHz200/266/333 MHz
DRAM Frequency100/133/166/200 MHz100/133/166 MHz
Package TypeTSOP-IIFBGA
Densities256MB 512MB 1GB256MB 512MB 1GB
Voltage2.5V1.8V
Prefetch Size2 bits4 bits
Burst Length2/4/84/8
CAS Latency1.5, 2, 2.53+, 4, 5
Write Latency1TRead Latency -1

Package type refers to the physical layout of modules. DDR memory modules are built using the standard TSOP-II architecture (Thin Small Outline Package) where transistors are laid out in grid formation; DDR2 uses a newer layout named FBGA (Fine Ball Grid Array) which allows a higher transistor count in the same physical package.
DDR and DDR2 are not compatible with each other. Where DDR has the TSOP package the module interfaces with the slot via 184 pins mounted on the side of the module, DDR2 uses 240 pads mounted on the underside of the module which interface with the slot. The FBGA architecture used in DDR2 allows for much more efficient placement of traces and pads, it being possible to run traces closer to the original source. Both modules are 5.25' in length and to prevent end users inadvertently plugging DDR into a DDR2 slot or vice versa the fitment slot is located differently on the two types.
Some other new technologies are incorporated into DDR2 also. With DDR, excess signal noise, reflected signals and other interference is eliminated by motherboard based transistors. DDR2 differs in that these terminating transistors are removed from the motherboard and are instead built into each memory module, allowing excess noise to be eliminated faster, this technology is called On Die Termination (ODT).
Another method of increasing signal integrity is OCD (Off Chip Driver calibration), which helps maintain the signal by smoothing voltages and supplying a reference voltage and is again built into the modules. Posted CAS and Additive Latency both aid in preventing data collisions within the module whilst allowing a greater number of read/write transactions per clock cycle increasing efficiency.
Ddr2
  • Genuine OEM DELL Part
  • Main Logic System Board Assembly Motherboard
  • Fits Dell Optiplex 755 Desktop Form Factor Computer
  • PN: DR845 WX729
Rank No. #9 New DELL Optiplex 760 Desktop SFF Main Logic Integrated Intel Chipset System Pentium/Celeron CPU Processor Socket LGA775 DDR2 SDRAM Dimm Memory Expansion Slots PCI Express VGA/USB/Serial/Parallel/ESATA/RJ45 Lan Performance M863N Motherboard F373D
  • Genuine OEM DELL Part
  • Main Logic System Board Assembly Motherboard
  • Fits DELL Optiplex 760 Small Form Factor SFF Only
  • Motherboard only. Intel CPU/Memory/Fans NOT included
  • PN: F373D / M863N
Rank No. #10 Genuine Dell Version G33M02 For Inspiron 530 530s, Vostro 200 400, Systems Intel G33 Express DDR2 SDRAM Motherboard Logic Board Main Board Compatible Part Numbers: G33M02, G679R, K216C, CU409, RY007
  • Genuine Dell Motherboard For Inspiron 530 530s and Vostro 200/400 Systems. Please Note This is the G33M02 Model This motherboard comes in two varieties G33M03 and G33M02. They are essentially the same but require two different heatsinks and vary in capacitor placement. Please ensure this is the correct motherboard for your replacement. You may be required to purchase a new heatsink to install correctly.
  • Chipset: Intel G33 Express / Supported Processors: Many Intel Core 2 Duo / Quad Processors - But not all Known to work: E2180, E4400, E6550, E6600, E2140, E2180, E6320, E6700, E4300, E6420, E4500, E6750, E2220, E8300, E4700, E2200, E8200, E8400, E8500, E4600, E6850, Celeron D420, D430, D440
  • Memory: Up to 4GB Dual-Channel DDR2 SDRAM / Video: Integrated Intel Graphics Media Accelerator 3100 / Audio: Integrated 7.1 Channel Audio
  • Expansion Capabilities: PCI: 2 Slots PCIe x1: 1 Slot PCIe x16 (Graphics): 1 Slots / Motherboard Compatible Part Numbers: G679R, K216C, CU409, RY007, G33M02
  • Peripheral Interfaces: 1 DVI, VGA and 1 S-Video (with add-in PCI-Express video card), IEEE 1394 (optional): 1 - 6-pin serial connector, 10 USB ports (4 Front, 4 back) + 2 internal, 6 back-panel connectors for line-in, line-out, microphone, rear surround, side surround, two front-panel connectors for headphones/microphone, integrated 7.1 channel sound, Integrated 10/100 network interface,

Top Rated Ddr2 Motherboard to Buy Now

Ddr2 Motherboard Reviews on Twitter

[custom-twitter-feeds search='Ddr2 Motherboard']

Why You Should Buy Best Ddr2 Motherboard from Amazon

Amazon is not the only store that sell Ddr2 Motherboard. Another way to say roulette wheel. However, there are several compelling reasons why you should buy Ddr2 Motherboard from them, with the suitable Price and Reviews. Here are five:

(1) Amazon Makes Shopping Ddr2 Motherboard Personal

Star casino harvest buffet atlantic city. Amazon is very good at making recommendations of Ddr2 Motherboard based on your search history. From time to time, they will even show you discounted prices on Ddr2 Motherboard that you previously expressed an interest in. They also make your shopping experience a little easier by showing you items that you recently viewed.

(2) Amazon Checkout is Easy

Amazon checkout is easy, especially if you already have an account. You can add Ddr2 Motherboard to your cart and go through a multi-step checkout process, or you can buy Ddr2 Motherboard with only one click by using your stored credit card information.

(3) Amazon Has Lots of Social Proof

Before you make a purchase for Ddr2 Motherboard, you want to know that the company you are dealing with is legitimate and that others trust the company enough to make a purchase. You may also like to read what others are saying about the product in the review section. Amazon does all of this quite well.

(4) Amazon Has Great Ddr2 Motherboard Images and Descriptions

In addition to still images, many of Amazon's Ddr2 Motherboard have videos. This makes it easier for you to see exactly what you are purchasing. Amazon's Ddr2 Motherboard descriptions are also quite good. In many cases, Amazon repeats the descriptions furnished by the manufacturer. In other cases, they write their own.

(5) The Amazon Site is Easy to Navigate

Navigating the Amazon site is easy. Even though the site is huge, you will not feel overwhelmed when searching for Ddr2 Motherboard. This is partly due to Amazon's filtering process. You can search for items by brand, price or user rating. You can also search for specific features.

How to Choose the Best Ddr2 Motherboard (with Price and Reviews)

Although most Ddr2 Motherboard are similar, there are several differences worth noting. Here are nine criteria to consider when choosing an Ddr2 Motherboard:

(1) Ddr2 Motherboard Price and Reviews

Although price is not the only factor to consider, it is nevertheless extremely important. The price of an Ddr2 Motherboard should be in line with its value. You can compare Ddr2 Motherboard reviews to make sure you are getting a fair price. This is easy to do on Amazon.

(2) Demand

The demand for a particular Ddr2 Motherboard is a good indication of its ability to perform the functions for which it was designed. If a product has been around for a while and still has a high demand, it is likely a good product.

(3) Material

Ddr2 Slot Coloring Pages

Ddr2 Motherboard materials differ from manufacturer to manufacturer. Consider where and how you will be using your Ddr2 Motherboard to determine if one material would be better than another.

(4) Size

Like most products, Ddr2 Motherboards come in various sizes. Do you need a large Ddr2 Motherboardor a small one? Think about where you will use your Ddr2 Motherboard in order to determine the best size. You can also read the customer reviews on Amazon to see what others are saying about the size of the unit they purchased.

(5) Color

Ddr2 Motherboards also come in a variety of colors. Do you need a particular color? You should also consider whether the color of your Ddr2 Motherboard would have any effect on the efficiency of its operation.

(6) Durability

The durability of an Ddr2 Motherboard will be contingent on the materials used as well as the quality of the manufacturing process. Additionally, the type of Ddr2 Motherboard you purchase may affect its durability.

(7) Storage

Will you need to store your Ddr2 Motherboard? If so, you should consider the size and weight of the Ddr2 Motherboardto make sure that it can be stored properly. Also, give some consideration to the type of climate in which your Ddr2 Motherboard will be stored.

(8) Customer Ratings

Customer rating is one of the best criteria for choosing an Ddr2 Motherboard. It is hard to know exactly how an Ddr2 Motherboard will perform until you get it home and try it out.

(9) Warranty

Make sure the Ddr2 Motherboard you are considering is backed by a good manufacturer's warranty. If it isn't, you might be better off with another ones.

In this article we will be exploring the differences between DDR memory and DDR2 memory and also explaining a bit about the technology behind the two.
Firstly, DDR stands for Dual Data Rate and is the replacement for SDRAM. The best analogy we have come across for how DDR works is: If the memory is visualised as a bicycle pump, SDRAM 'pumps' push data into the 'tyre' each time the barrel of the pump is pressed down, whereas DDR pushes data both on the downstroke and the upstroke of the barrel so filling the 'tyre' at twice the speed.

Ddr2 Slot Colorado

DDR has a data rate of 200/266/333/400 MiB/s compared to DDR2 which has a data rate of 400/533/667 MiB/s, it is clear to see that from a speed point of view DDR2 continues where DDR leaves off. The table below courtesy of the Corsair website helps illustrate other notable differences.
DDRDDR2
Data Bus64 bits64 bits
Data Rate200/266/333/400 MiB/s400/533/667 MiB/s
Bus Frequency100/133/166/200 MHz200/266/333 MHz
DRAM Frequency100/133/166/200 MHz100/133/166 MHz
Package TypeTSOP-IIFBGA
Densities256MB 512MB 1GB256MB 512MB 1GB
Voltage2.5V1.8V
Prefetch Size2 bits4 bits
Burst Length2/4/84/8
CAS Latency1.5, 2, 2.53+, 4, 5
Write Latency1TRead Latency -1

Package type refers to the physical layout of modules. DDR memory modules are built using the standard TSOP-II architecture (Thin Small Outline Package) where transistors are laid out in grid formation; DDR2 uses a newer layout named FBGA (Fine Ball Grid Array) which allows a higher transistor count in the same physical package.
DDR and DDR2 are not compatible with each other. Where DDR has the TSOP package the module interfaces with the slot via 184 pins mounted on the side of the module, DDR2 uses 240 pads mounted on the underside of the module which interface with the slot. The FBGA architecture used in DDR2 allows for much more efficient placement of traces and pads, it being possible to run traces closer to the original source. Both modules are 5.25' in length and to prevent end users inadvertently plugging DDR into a DDR2 slot or vice versa the fitment slot is located differently on the two types.
Some other new technologies are incorporated into DDR2 also. With DDR, excess signal noise, reflected signals and other interference is eliminated by motherboard based transistors. DDR2 differs in that these terminating transistors are removed from the motherboard and are instead built into each memory module, allowing excess noise to be eliminated faster, this technology is called On Die Termination (ODT).
Another method of increasing signal integrity is OCD (Off Chip Driver calibration), which helps maintain the signal by smoothing voltages and supplying a reference voltage and is again built into the modules. Posted CAS and Additive Latency both aid in preventing data collisions within the module whilst allowing a greater number of read/write transactions per clock cycle increasing efficiency.
Two other things to take from the table are the increased CAS latency (CL) and reduced operating voltage. The change in CAS latency is required to offset the speed increase. Whether this increase greatly affects performance remains to be seen. Early samples did suffer from higher latency and in some cases were slower than their DDR relatives, however technology has moved on since then and newer models are running with much lower latencies and with the increased performance this brings. The operating voltage required by DDR2 modules is much reduced meaning less voltage is required to read from and write to the memory, another indication of increased efficiency.
CAS stands for Column Address Strobe, and Latency is defined as the amount of time between a stimulus and a response; to use another analogy: a RAM module can be compared to a spreadsheet, but with 'memory' cells in place of numbers and formulae, with each cell possessing a cell address derived from its column and row position. As expected and inline with the analogy there also exists RAS latency or Row Address Strobe. To fetch data the chipset accesses the desired row of the memory 'spreadsheet' by placing the required cell address on the memory address pins and switching on the RAS signal. The time in clock cycles taken to process this instruction is known as RAS to CAS delay, once complete the column address is fed into the address pins and the CAS signal made active to allow the correct column of your memory spreadsheet to be accessed, once again a few clock cycles pass before the data is available on the memory pins.
This delay between addressing the column pins and the data being available is CAS latency. With CAS 2, two clock cycles pass before the data is ready and with CAS 3, three clock cycles pass. This is not to say, however, that a CAS 2 module is a third faster than CAS 3, as other factors also affect how quickly data is retrieved. In essence, however, lower CAS latencies generally mean better performance as data can be accessed in a shorter amount of time.
DDR2 has been around for over 12 months on graphics cards, but the base standard and architecture differs from that used on a motherboard module. At present DDR2 is only supported by Intel based systems with AMD expected to launch compatible models sometime during 2006.
In summary, faster data rates, increased frequencies, expected support by both major CPU manufacturers and a more power efficient module, all these factors point to increased use by desktop PC owners of DDR2, and with latencies falling all the time DDR2 looks increasingly certain to be the future of memory design.



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