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DDR2 VS DDR3

DDR2 VS DDR3

Postby Grav!ty » Fri Aug 31, 2007 12:37 am

Here are a few reviews of DDR3 VS DDR2 memory and I'll post the conclusions in each case.

The first is from extreview.com with their article titled:

DDR2 VS DDR3 1600 MHZ PERFORMANCE REVIEW BENCHMARK AND OVERCLOCKING

Conclusions

According to the obtained tests results , neither DDR 3-1333 with the extremely low latency north DDR 3-1600 could ensure unambiguously better speed, than DDR2 memory. Although in some tasks, for example in games, during video coding and in Excel new DDR3 SDRAM shows higher performance, but there is a large quantity of tasks, where the picture is reverse.

In other words, DDR3 SDRAM producers move in the correct direction. It is better to move with the new memory , than to overclock the past generation. Since the new technology will include the lower energy consumption , increased volume and with time the higher performance.

1600 MHz is not the limit from micron chip and soon we will introduce analogous DDR 3-1800 MHZ .


Next up is a review from AnandTech with their article simply headed:

DDR3 vs. DDR2

Conclusion

DDR3 at introduction is saddled with pretty dismal memory timings. As you can see in our test bed chart, SPD timings are 6-6-6-15 at DDR3-800, 7-7-7-20 at DDR3-1066 and 9-9-9-25 at DDR3-1333. Despite the slower timings DDR3 runs at higher speeds than any DDR2 we have tested, and we will have official JEDEC timings for DDR3 to 1600 with the current JEDEC standard, and possibly ever faster with any future JEDEC update.

Even at slow timings, DDR3 shows a great deal of promise. It is as fast as very fast DDR2 on the P965, but it can't match the same DDR2 memory performance on the P35. DDR3 can run at higher speeds than DDR2 and as faster memory timings inevitably appear DDR3 will be the right choice for computer enthusiasts looking for the best performance. While we can't prove better latency or significantly better performance with the slow timings of launch DDR3, the evidence is all there in these tests. DDR3 will get faster in speed and will provide the best performance in the long term.

...Two conditions would shift the recommendation to DDR3 instead. When DDR3 prices come close to DDR2 then buy DDR3 instead. More significantly, when DDR3 becomes available at higher speeds and/or faster timings then definitely choose DDR3 if you are looking for performance - even if the price is higher.
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