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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.
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 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-2 GBNQ dual-channel 2x 1 GB 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.