What is the highest clock speed for DDR2 RAM?
533 MHz
The highest-rated DDR2 modules in 2009 operate at 533 MHz (1066 MT/s), compared to the highest-rated DDR modules operating at 200 MHz (400 MT/s).
Are there different types of DDR2 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).
Can PC2-5300 replace PC2-6400?
PC2-6400 is backward-compatible for PC2-4200 and PC2-5300.
What is the frequency of DDR2?
DDR2 memories include 400 MHz, 533 MHz, 667 MHz and 800 MHz versions, while DDR3 memories include 800 MHz, 1066 MHz, 1333 MHz and 1600 MHz versions. Both types double the data rate for a given clock frequency.
How fast can DDR2 go?
DDR2 speeds
| Friendly name | Industry name | Peak Transfer Rate |
|---|---|---|
| DDR2-400 | PC2-3200 | 3200 MB/s |
| DDR2-533 | PC2-4200 | 4266 MB/s |
| DDR2-667 | PC2-5300 | 5333 MB/s |
| DDR2-800 | PC2-6400 | 6400 MB/s |
Is DDR2 still used?
While you’re unlikely to find DDR2 RAM in many places today (it did become available back in 2004) it’s still useful for comparison. While original-generation DDR RAM ran two data transfers per clock cycle, DDR2 RAM can produce four transfers per cycle instead.
Which RAM speed is best?
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.
What is the difference between DDR2 5300 and 6400?
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. The “6400” refers to the module’s bandwidth (the maximum amount of data it can transfer each second), which is 6400MB/s, or 6.4GB/s.
What’s the difference between the pc4200 and the pc5300?
PC5300 runs at 333Mhz (DDR667), whereas the PC4200 runs at 266Mhz (DDR533). These are the DRAM frequencies from the system level. Of course DDR means “Double Data Rated”, which often lead to very confusing numbers of 667 and 533 respectively.
What’s the difference between DDR2 and PC2 SDRAM?
Comparison of DDR2 SDRAM standards Name Name Name Chip Chip Standard Type Module Clock rate ( MHz) Cycle time ( ns) DDR2-400 B PC2-3200 100 10 DDR2-400 C PC2-3200 100 10 DDR2-533 B PC2-4200* 133 7.5
What was the original clock rate for DDR2?
DDR2 was officially introduced in the second quarter of 2003 at two initial clock rates: 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.
Which is faster DDR or DDR2 memory modules?
The best-rated DDR2 memory modules are at least twice as fast as the best-rated DDR memory modules. The maximum capacity on commercially available DDR2 DIMMs is 4GB, but chipset support and availability for those DIMMs is sparse and more common 2GB per DIMM are used.