10 Kits For Your Consideration
Most of the 13 companies we contacted wanted to participate but several were not yet producing DDR3 memory at a 1333-MHz data rate. Some had skipped the middle market entirely by focusing only on budget DDR3-1066 and extreme-performance DDR3-1600. The one company that had the parts but wasn’t able to meet our deadlines was Team Group. Of the eight brands that were able to provide modules in time for these tests, OCZ and Kingston each sent two kits to represent a broader range of what these firms offer.
Aeneon X-Tune DDR3-1333
If you’ve never heard of Aeneon you’re not alone; this is the new retail brand for Qimonda. If this still doesn’t sound familiar, it’s probably because this is the new name for Infineon’s former memory division. Experienced builders should be extremely familiar with Infineon memory and its reputation for quality and durability.

While several other brands try to figure out whether to call their memory PC3-10600 or PC3-10666, Aeneon skipped the debate for now and named its parts by data rate rather than bandwidth. Most builders would probably refer to the data rate rather than bandwidth anyway.
Sold under part number AXH760UD00-13G, this 2 x1 GB dual-channel DDR3-1333 kit is rated to operate at 667 MHz clock rate with latencies of 8-8-8-15 and the system-default 1.50 volts. The closest value in its SPD table is 8-8-8-24. Builders who wish to run these X-Tune modules at full rated timings will need to enter BIOS and manually lower the tRAS setting from 24 to 15 cycles.

SPD values as low as 416 MHz clock rate (DDR3-833) help to assure that systems using lower FSB processors will boot up using automatic configuration, and Aeneon goes one step beyond the memory’s rated capability by providing a 750-MHz clock speed value as well. The 500 MHz setting could be handy for using an FSB-1066 processor with a chipset’s 3:2 DRAM:FSB ratio, but a 533 MHz value (DDR3-1066) would have supported a greater assortment of automatic configurations.
G.Skill PC3-10600
G.Skill has earned itself a great reputation with value-minded performance fanatics by providing high-speed memory at standard-speed prices. In the case of its DDR3-1333, we wouldn’t be surprised to see it eventually competing at the price levels of top-brand DDR3-1066.

But being a "value-performance" brand doesn’t mean the modules have to be ugly, and G-Skill did a nice job of making its heat spreaders and retail packaging competitive with higher-priced parts. Underneath, this part number F3-10600CL9D-2GBNQ dual-channel 2x 1GB DDR3-1333 kit provides two "standard latency" modules with 9-9-9-24 rated timings at a system’s default 1.50 volts. The memory is further rated to accept any voltage from 1.50 to 1.65 volts, which appears to be a suggestion that buyers should overclock it if they get the urge.

The SPD value for a 667-MHz clock rate (DDR3-1333) is expected, but the 592- and 444-MHz value appear rather odd. We tested the modules on several boards to confirm that the 592 MHz clock rate value (DDR3-1184) does function as a DDR3-1066 value when needed.
Because G.Skill’s PC3-10600 defaults to its rated speed and timings, buyers only need to use manual configurations when they want to push these modules beyond their rated settings.
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One part on page 3 is a bit confusing to me:
"Because cycle time is the inverse of clock speed (1/2 of DDR data rates), the DDR-333 reference clock cycled every six nanoseconds, DDR2-667 every three nanoseconds and DDR3-1333 every 1.5 nanoseconds. Latency is measured in clock cycles, and two 6ns cycles occur in the same time as four 3ns cycles or eight 1.5ns cycles. If you still have your doubts, do the math!"
If I am reading this right, cycle time is the inverse of (1/2)*(DDR Data Rate or 333 for example). So 1/((1/2)*333)=.006006006 which rounds to 6 milli-seconds, not 6 nano-seconds.
Sorry for my confusion, but could someone please clarify for me?
I can not clarify...this is a good article, but im still anoyed at the spelling and punctuation in the articles...Im not one for utmost spelling and punction in informall chatting messaging etc (like this) but i am when its a published article, you wouldnt find a harry potter novel with spelling mistakes in it....
"and DDR3-1600 is called PC2-12800." Its surposed to say, PC3-12800 not...PC2-12800
On the first page mid way down ^^^
Therlian you got it wrong. Generally, period (cycle time) it's the inverse of frequency (clock speed). But as DDR stands for Dual Data Rate, its real frequency is 1/2 of the specified clock speed. What you did wrong it's that you didn't take in account that DDR-333 means a data rate of 333 MEGA-hertz. Because a hertz is the inverse of a second you get: 1/((1/2)*333 MHz)=.006 micro- seconds, which is equal to 6 nano-seconds. Hope I made it clear for you.
I see now danmari. Thanks for pointing that out. I don't know why I didn't think about the 333 being MHz as opposed to Hz.
"I can not clarify...this is a good article, but im still anoyed at the spelling and punctuation in the articles...Im not one for utmost spelling and punction in informall chatting messaging etc (like this) but i am when its a published article, you wouldnt find a harry potter novel with spelling mistakes in it...."
Sorry but when you make THAT many mistakes in your own post, you have no right to talk about spelling mistakes. The mistake you mention is a typo (hitting a wrong key) not a spelling error.
You however manage to spell "annoyed", "informal", and "supposed" wrongly. You also managed to spell "punctuation" wrongly (the second time.. not sure how you can spell it right the first time and wrong the second..)
If you don't know how to spell, then don't flame others for it.
anyone with notes PC2100,PC3200,PC4200,PC5300?
"Intel’s current fastest Front Side Bus (FSB) uses a 1333-MHz data rate"
No, that's not right!
It's 1600MHz (native) for a Socket 775 CPU and socket 771, and if you didn't notice, some people overclock, big time!
Although DDR3 is touted as using 1.50V, several modules use more!
The same is true of DDR2. In this article DDR2 is described as being 1.8V. In my experience most of the modules are 1.9V and some are higher.