What is the peak transfer rate of a ddr2-533 module?

DDR3 stands for double-data-rate three and is a random access memory technology used for high speed storage of the working data of a computer or other digital electronic device. DDR3 is part of the SDRAM (synchronous dynamic random access memory) family of technologies and is one of the many DRAM (dynamic random access memory) implementations. DDR3 SDRAM is an improvement over its predecessor, DDR2.

The primary benefit of DDR3 is the ability to transfer data for I/O at 8 times the speed of its memory cells, thereby enabling faster bus speeds and higher peak throughput than earlier DRAM memory technologies. However, there is no corresponding reduction in latency, which is therefore proportionately higher. In addition, the DDR3 standard allows for chip capacities of 512Mb to 8 Gb, effectively enabling a maximum memory module size of 16 GB.

	DDR2	DDR3
	current rating is 3.68/5 1 2 3 4 5 (294 ratings)	current rating is 3.98/5 1 2 3 4 5 (199 ratings)
Voltage	1.8 Volts (standard); 1.9 V (high performance)	1.5 Volts (standard); 1.65 Volts (high performance); 1.35 V (low voltage)
Speed	400 MHz, 533 MHz, 667 MHz, 800 MHz, 1066MT/s	800 Mhz, 1066 Mhz, 1333 Mhz, 1600 Mhz and 1866 Mhz
Modules	240-pin DIMM unbuffered registered; 200-pin SODIMM; 214-pin MicroDIMM	240-pin DIMM (same size as DDR2 but are electrically incompatible with DDR2 DIMMs and have a different key notch location). DDR3 SO-DIMMs have 204 pins.
Prefetch Buffer	4n	8n
Bus clock	200-533 MHz	400-1066 MHz
Internal Rate	100-266 MHz	100-266 MHz
Transfer Rate	0.40-1.06 GT/s (gigatransfers per second)	0.80-2.13 GT/s (gigatransfers per second)
Channel Bandwidth	3.20-8.50 GBps	6.40-17.0 GBps

• Higher bandwidth performance, effectively up to 1600 MHz: The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3's 8 bit deep prefetch buffer, in contrast to DDR2's 4 bit prefetch buffer or DDR's 2 bit buffer. DDR3 modules can transfer data at the effective clock rate of 800–1600 MHz using both rising and falling edges of a 400–800 MHz I/O clock. In comparison, DDR2's current range of effective data transfer rate is 400–800 MHz using a 200–400 MHz I/O clock, and DDR's range is 200–400 MHz based on a 100–200 MHz I/O clock.
• Higher performance at low power (longer battery life in laptops): DDR3 memory promises a power consumption reduction of 30% compared to current commercial DDR2 modules due to DDR3's 1.5 V supply voltage, compared to DDR2's 1.8 V or DDR's 2.5 V.
• Enhanced low power features
• Improved thermal design (cooler)

• DDR3 usually has higher CAS latency:While the typical latencies for a JEDEC DDR2 device were 5-5-5-15, the standard latencies for the newer JEDEC DDR3 devices are 7-7-7-20 for DDR3-1066 and 7-7-7-24 for DDR3-1333. DDR3 latencies are numerically higher because the clock cycles by which they are measured are shorter; the actual time interval is generally equal to or lower than DDR2 latencies. Moreover, while these are the standards, manufacturing processes tend to improve with time. Eventually, DDR3 modules will likely be able to run at lower latencies than the JEDEC specifications. It is possible to find DDR2 memory that is faster than the standard 5-5-5-15 speeds, but it will take time for DDR3 to fall below the JEDEC latencies.

Physical Differences

The following images show what DDR2 and DDR3 DIMMs look like.

Applications of DDR2 vs. DDR3

Graphics cards need fast data transfer between framebuffers. So the higher bandwidth capabilities of DDR3 are useful.

References

• DDR3 SDRAM - Wikipedia
• DDR2 SDRAM - Wikipedia

• Follow
• Share
• Cite
• Authors

Share this comparison:

If you read this far, you should follow us:

"DDR2 vs DDR3." Diffen.com. Diffen LLC, n.d. Web. 6 May 2022. < >

What are the data transfer rates for DDR, DDR2, DDR3 and DDR4?

What is the DDR speed of a PC2 4200 memory module?

4266 MB/s
DDR2 speeds

What speed is DDR2 RAM?

DDR2 memory is at the same internal clock speed (133~200MHz) as DDR, but the transfer rate of DDR2 can reach 533~800 MT/s with the improved I/O bus signal.

Can PC2-5300 replace PC2 6400?

PC2-6400 is backward-compatible for PC2-4200 and PC2-5300.

Is PC2 and DDR2 the same?

all ddr2 ram is pc2. there are two ways to classify ram, either: pc2 6400 or DDR2 800.

What is the core clock speed for a RAM with a PC speed rating of PC 4000 DDR 500 )?

Ram Chart

What is PC2 RAM?

PC2- indicates the module uses DDR2 memory; PC- indicates the module uses DDR memory. Other common speeds for DDR2 SDRAM modules include PC2-3200 (DDR2-400; 3200Mbps throughput); PC2-5300 (DDR2-667); PC2-6400 (DDR2-800); and PC2-8500 (DDR2-1066).

What is a good RAM speed?

In terms of memory speed, you should look for DDR4 memory that operates close to or above 2,400MHz—or 2400MT/s as it’ll appear on the packaging and online. Users purchasing DDR3 RAM should look for memory operating at 1,866MHz at least, and the closer to 2,000MHz the better.

Which RAM speed is best?

Which RAM type is fast?

The latest memory type used in modern desktop computers is called “double data rate.” Not all DDR RAM is equal, and the RAM standard is currently on its third major revision. Those looking to get the fastest-performing RAM purchase DDR3 RAM and a compatible motherboard.

What kind of memory does a PC2-4200 use?

DDR2 PC2-5300 (commonly referred to as DDR2-667) memory is DDR2 designed for use in systems with a 333MHz front-side bus (providing a 667MT/s data transfer rate). The “5300” refers to the module’s bandwidth (the maximum amount of data it can transfer each second), which is 5300MB/s, or 5.3GB/s. PC2-5300 is backward-compatible for PC2-4200.

What are the memory speeds for DDR2 memory?

DDR2 speeds Friendly name Industry name Peak Transfer Rate Data transfers/second (in millions) DDR2-400 PC2-3200 3200 MB/s 400 DDR2-533 PC2-4200 4266 MB/s 533 DDR2-667 PC2-5300 5333 MB/s 667 DDR2-800 PC2-6400 6400 MB/s 800

What’s the memory speed of a crucial PC2-5300?

The “5300” refers to the module’s bandwidth (the maximum amount of data it can transfer each second), which is 5300MB/s, or 5.3GB/s. PC2-5300 is backward-compatible for PC2-4200.

Which is backward compatible with PC2-6400 memory?

PC2-6400 is backward-compatible for PC2-4200 and PC2-5300. DDR2 PC2-8000 (commonly referred to as DDR2-1000) memory is DDR2 providing a 1,000MT/s data transfer rate). The “8000” refers to the module’s bandwidth (the maximum amount of data it can transfer each second), which is 8000MB/s, or 8GB/s.