Is 800 MHz RAM compatible with 667MHz?

If having a 2GB DDR2 800MHz and a 1GB DDR2 667MHz is not compatible.

What is 667MHz RAM?

The memory is running at 667 MHz, which equals 1333 MT/s because of the Double Data Rate that gives DDR3 its name. Your kit is rated to run at up to 1866 MT/s, which is actually only 933 MHz. Most kits default to 1333 MT/s = 667 MHz, so you need to go into BIOS/UEFI and set it to the faster speed.

Can I use DDR2 800 and DDR2-667 together?

well, yes you can combine them, even though they are rated at different speeds. They will clock at 667 (being the common denominator). Or at least you should set them at that speed, otherwise you’ll be overclocking the 667 dims.

What is the difference between 667MHz and 800MHz RAM?

The 800MHz RAM is rated to provide data to the CPU faster than the 667MHz. However they can both operate at 667MHz or lower or even higher, though if its higher than the RAM is rated for its considered to be overclocked.

What RAM is compatible with DDR2?

All DDR memories are mutually incompatible. The DDR2/3/4 DIMMs can only be used on their respective DDR2/3/4 sockets, with the notches differently located. The power supply for each generation also varies: for DDR1 DIMMs, it’s 2.5V; DDR2, 1.8V; DDR3, 1.5V; and DDR4, 1.2V.

Is 667mhz ram good?

The short answer is yes. The ram has a delay whenever the CPU need to grab some numbers to crunch. Faster ram will make the numbers get crunched faster. If 667 Mhz is okay for you right now, I wouldn’t upgrade.

Why is my ram running at 667mhz?

667mhz is half of 1333mhz, which means that your ram is running at 1333mhz, which is standard. Just go in your bios and change it to 1600mhz, then it will show you are running it at 800mhz, which is the correct speed.

Is 667 Mhz RAM good for gaming?

What is the speed difference between DDR2 667 and DDR2 800?

DDR2 667 (PC2-5300) = 5.3GB/sec in single channel 10.6GB/sec in dual channel DDR2 800 (PC2-6400) = 12.8GB/sec in single channel 12.8GB/sec in dual channel With respect to dual channel comparison, its a 133MHz difference which translates into 2.2GB/sec gain from upgrading to 800MHz

How much difference does 667 MHz RAM make?

RAM speed is largely a fad. There is usually almost unmeasurable differences between RAM speeds. You will not suffer from 667 MHz RAM. I wouldn’t say unmeasurable, but certainly unnoticeable from the user’s POV in most cases. It makes a big difference in memory benchmarks and only in memory benchmarks. 0-2% for most other apps.

What is the difference between 800mhz and 1066mhz FSB?

Your Choice. 800MHz FSB = DDR2 533MHz ( Ideal ) OR DDR2 400MHz ( Matched but Slow ) 1066MHz FSB = DDR2 667 ( Good ) OR DDR2 533MHz ( Matched but Slow ) decoupling of clocks plus chip timings considerations.

What is the data transfer rate of the ddr2-6400?

According to a data transfer rate of a comparison table I found on the web DDR2 667 (PC2-5300) = 5.3GB/sec in single channel 10.6GB/sec in dual channel DDR2 800 (PC2-6400) = 12.8GB/sec in single channel 12.8GB/sec in dual channel