667 Vs. 800 MHz RAM

Is there a difference between DDR2-800 and DDR2-667? Different rates of a computer’s clock. Essentially, clock speed is the rate at which one human can ‘transition’ something in a second. More transfers-per-second and hence more MB/s are possible with the greater clock speed of the 800 chip compared to the 667 chip.

There are no issues with running the DDR2 RAM at lower frequencies. Everything will be alright if the motherboard runs the RAM at 667MHz instead of 800MHz. Due to the reduced frequency, you’ll lose a little amount of performance.

All of the memory will operate at its sluggishest possible speed. If you aren’t using benchmarks, the minor decrease in speed won’t be noticeable. If the software you’re running can benefit from the more memory, then it’s a good investment.

Two things should be kept in mind, though. To begin, the total amount of memory you’ll see is likely to be less than 3.25 GB because you’re not running Windows 7 x64. Another reason why it’s important to keep your memories separate is that it can conflict with each other. The only way to know for sure is to test them out.. No harm will be done as long as both sets are compatible with your board. Remove the slower sticks if you see random faults or lockups.

Why does it matter if the mobo/BIOS caps the RAM at 667 mhz if you’re running your RAM at 1:1 with your FSB?

In the default configuration, your FSB and RAM are running at 533 mhz, respectively. A default bus speed of 333 or even 400 is unlikely to be used by C2D chipsets for some time.

When Intel introduces C2D chips with a default 333 bus, having DDR2 667 support provides you more room for future OCs.

The only thing that matters is whether or not you can add a faster CPU in the future. The OP will be able to use a 333 mhz bus C2D if and when one becomes available because there are no ratios that permit running RAM slower than your FSB. If you’re not planning on overclocking, it’s the only thing that should have come to mind.

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

In terms of speed, the 800MHz RAM outperforms the 667MHz RAM. However, they may both run at speeds as high as 667MHz, but this is considered overclocking if the RAM is running at a speed higher than that.

DDR2 533 667 800MHz RAM is referred to in the documentation, but what does that mean?

What does “DDR2 533/667/800MHz RAM” mean in the documentation? The numbers in the module’s serial number indicate to the data transfer rate, which is double that of the first generation. Everything will be alright if the motherboard runs the RAM at 667MHz instead of 800MHz.



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