Ddr Vs Ddr2 Slot

1. Ddr Vs Ddr2 Slot Gaming
2. Ddr Vs Ddr2

DDR2 is a double data rate RAM interface which superseded the original DDR SDRAM specifications and is also superseded by the DDR3. DDR2 vs DDR3 vs DDR4 Explained Feature and Identify comparison Hello Friends In this video I have explained the difference between different types of rams, D.

Speed of DDR vs DDR2 RAM

DDR2's bus frequency is boosted by electrical interface improvements, on-die termination, prefetch buffers and off-chip drivers. However, latency is greatly increased as a trade-off. While DDR SDRAM has typical read latencies of between 2 and 3 bus cycles, DDR2 may have read latencies between 4 and 6 cycles. Thus, DDR2 memory must be operated at twice the bus speed to achieve the same latency in nanoseconds.

Apr 30, 2018 RAM is a form of data storage available in computers which stores data and machine code that is currently being used by the system. Here is the difference between DDR2 Vs DDR3 Vs DDR4 Vs DDR5 RAM. DDR compatibility on DDR2 Slot by msmajhail Nov 27, 2006 4:16AM PST Hi I am planning to upgrade my motherboard from socket 478 to socket 775.

On-Die Termination

With DDR, excess signal noise was eliminated by resistors built into the motherboard, but DDR2 has the terminating resistors built into each memory chip. On-Die Termination for both memory and controller in DDR2 improves signaling and reduces system cost.

Package

Another cost of the increased speed is the requirement that the chips are packaged in a more expensive and more difficult to assemble BGA package as compared to the TSSOP package of the previous memory generations such as DDR. This packaging change was necessary to maintain signal integrity at higher speeds.

Power Savings with DDR2

Power savings are achieved primarily due to an improved manufacturing process through die shrinkage, resulting in a drop in voltage requirements (1.8 V compared to DDR's 2.5 V). The lower memory clock frequency may also enable power reductions in applications that do not require the highest available speed.

History and Launch of DDR and DDR2

DDR2 was introduced in the second quarter of 2003 at two initial speeds: 200 MHz (referred to as PC2-3200) and 266 MHz (PC2-4200). Both performed worse than the original DDR specification due to higher latency, which made total access times longer. However, the original DDR technology normally tops out at speeds around 266 MHz (533 MHz effective). DDR2 started to become competitive with the older DDR standard by the end of 2004, as modules with lower latencies became available.

DDR2 was succeeded by DDR3, which offers faster bus speeds and peak throughput, and a maximum memory of 16GB. For more details, see DDR2 vs DDR3.

Compatibility of DDR2 with DDR

DDR2 DIMMs are not designed to be backwards compatible with DDR DIMMs. The notch on DDR2 DIMMs is in a different position than DDR DIMMs, and the pin density is slightly higher than DDR DIMMs. DDR2 is a 240-pin module, DDR is a 184-pin module.

Faster DDR2 DIMMs though, are compatible with slower DDR2 DIMMs. The memory would just run at the slower speed. Using slower DDR2 memory in a system capable of higher speeds results in the bus running at the speed of the slowest memory in use.

References

How to identify computer ram ddr1 ddr2 ddr3, DDR4 Identifying the Computer RAM (Random Access Memory) like DDR1, DDR2, DDR3, and DDR4 physically is not so hard if you follow the steps.

1. Distance of Notch
2. Integrated Chip (IC) type

DDR1, DDR2, DDR3, DDR4 is the most using RAM currently in the market.

First of all confirm is it DDR1, DDR2, DDR3, or Different DDR’s SDRAM. keep your DDR chip front-facing as given bellow. here look to the notch each DDR notch distance is different from others DDR. It’s mentioned in the picture.

Ddr Vs Ddr2 Slot Gaming

Also Read :

Distance of Notch

• • Notch Means above cuts Mark on RAM
    • DDR1, DDR2, DDR3 having Single Cut mark on the base of the RAM
  • But you can see the Cut mark (Notch) distance (see below photo)
    • Notch of DDR1 and DDR2 are similar but if you see closely,
      • You can find DDR1 Notch is just above the IC and DDR
      • DDR2 Notch is just far to the IC
    • Notch of DDR3 is different from the other two.

• Integrated Chip (IC)

  • See the Above Photo
    • DDR3 having small and square type IC.
    • DDR2 is just bigger then DDR3 and smaller the DDR1,
    • In this case, too, DDR1 and DDR2 are just a small difference
      • IC in DDR1 are touched both top and bottom of RAM
      • and IC in DDR2 is just center of the RAM

• Number of Pins in DDR1, DDR2, DDR3, DDR4

  • DDR1 – 184 Pins
    • DDR2 – 240 Pins
      • DDR3 – 240 Pins
        • DDR4 – 288 Pins

• Voltage of RAM

  • The voltage of RAM cannot be used for the Physical finding of RAM, but it can be used to place the RAM in the Motherboard Slot. (voltage are written in the RAM Slot of Motherboard)
    • DDR1 Volts – 2.5 v
      • DDR 2 Volts – 1.8 v
        • DDR3 Volts – 1.5 v
          • DDR4 Volts – 1.2v

• Click to Buy Best DDR RAMs for Desktops

• Click to Buy Best DDR RAMs for Desktops

identify computer ram ddr1 ddr2 ddr3

Ddr Vs Ddr2